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DataBeak

Tests codecov Python 3.12+ License Code style: ruff

AI-Powered CSV Processing via Model Context Protocol

Transform how AI assistants work with CSV data. DataBeak provides 40+ specialized tools for data manipulation, analysis, and validation through the Model Context Protocol (MCP).

Related MCP server: DataClaw MCP Server

Features

  • 🔄 Complete Data Operations - Load, transform, and analyze CSV data from URLs and string content

  • 📊 Advanced Analytics - Statistics, correlations, outlier detection, data profiling

  • Data Validation - Schema validation, quality scoring, anomaly detection

  • 🎯 Stateless Design - Clean MCP architecture with external context management

  • High Performance - Async I/O, streaming downloads, chunked processing

  • 🔒 Session Management - Multi-user support with isolated sessions

  • 🛡️ Web-Safe - No file system access; designed for secure web hosting

  • 🌟 Code Quality - Zero ruff violations, 100% mypy compliance, perfect MCP documentation standards, comprehensive test coverage

Getting Started

The fastest way to use DataBeak is with uvx (no installation required):

For Claude Desktop

Add this to your MCP Settings file:

{
  "mcpServers": {
    "databeak": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/jonpspri/databeak.git",
        "databeak"
      ]
    }
  }
}

For Other AI Clients

DataBeak works with Continue, Cline, Windsurf, and Zed. See the installation guide for specific configuration examples.

HTTP Mode (Advanced)

For HTTP-based AI clients or custom deployments:

# Run in HTTP mode
uv run databeak --transport http --host 0.0.0.0 --port 8000

# Access server at http://localhost:8000/mcp
# Health check at http://localhost:8000/health

Quick Test

Once configured, ask your AI assistant:

"Load this CSV data: name,price\nWidget,10.99\nGadget,25.50"
"Load CSV from URL: https://example.com/data.csv"
"Remove duplicate rows and show me the statistics"
"Find outliers in the price column"

Documentation

📚 Complete Documentation

Environment Variables

Configure DataBeak behavior with environment variables (all use DATABEAK_ prefix):

Variable

Default

Description

DATABEAK_SESSION_TIMEOUT

3600

Session timeout (seconds)

DATABEAK_MAX_DOWNLOAD_SIZE_MB

100

Maximum URL download size (MB)

DATABEAK_MAX_MEMORY_USAGE_MB

1000

Max DataFrame memory (MB)

DATABEAK_MAX_ROWS

1,000,000

Max DataFrame rows

DATABEAK_URL_TIMEOUT_SECONDS

30

URL download timeout

DATABEAK_HEALTH_MEMORY_THRESHOLD_MB

2048

Health monitoring memory threshold

See settings.py for complete configuration options.

Known Limitations

DataBeak is designed for interactive CSV processing with AI assistants. Be aware of these constraints:

  • Data Loading: URLs and string content only (no local file system access for web hosting security)

  • Download Size: Maximum 100MB per URL download (configurable via DATABEAK_MAX_DOWNLOAD_SIZE_MB)

  • DataFrame Size: Maximum 1GB memory and 1M rows per DataFrame (configurable)

  • Session Management: Maximum 100 concurrent sessions, 1-hour timeout (configurable)

  • Memory: Large datasets may require significant memory; monitor with health_check tool

  • CSV Dialects: Assumes standard CSV format; complex dialects may require pre-processing

  • Concurrency: Async I/O for concurrent URL downloads; parallel sessions supported

  • Data Types: Automatic type inference; complex types may need explicit conversion

  • URL Loading: HTTPS only; blocks private networks (127.0.0.1, 192.168.x.x, 10.x.x.x) for security

For production deployments with larger datasets, adjust environment variables and monitor resource usage with health_check and get_server_info tools.

Contributing

We welcome contributions! Please:

  1. Fork the repository

  2. Create a feature branch (git checkout -b feature/amazing-feature)

  3. Make your changes with tests

  4. Run quality checks: uv run -m pytest

  5. Submit a pull request

Note: All changes must go through pull requests. Direct commits to main are blocked by pre-commit hooks.

Development

# Setup development environment
git clone https://github.com/jonpspri/databeak.git
cd databeak
uv sync

# Run the server locally
uv run databeak

# Run tests
uv run -m pytest tests/unit/          # Unit tests (primary)
uv run -m pytest                      # All tests

# Run quality checks
uv run ruff check
uv run mypy src/databeak/

Testing Structure

DataBeak implements comprehensive unit and integration testing:

  • Unit Tests (tests/unit/) - 940+ fast, isolated module tests

  • Integration Tests (tests/integration/) - 43 FastMCP Client-based protocol tests across 7 test files

  • E2E Tests (tests/e2e/) - Planned: Complete workflow validation

Test Execution:

uv run pytest -n auto tests/unit/          # Run unit tests (940+ tests)
uv run pytest -n auto tests/integration/   # Run integration tests (43 tests)
uv run pytest -n auto --cov=src/databeak   # Run with coverage analysis

See Testing Guide for comprehensive testing details.

License

Apache 2.0 - see LICENSE file.

Support

Available Tools

41 tools
add_columnA

Add a new column to the dataframe.

Returns: ColumnOperationResult with operation details

Examples: # Add column with constant value add_column(ctx, "status", "active")

# Add column with list of values
add_column(ctx, "scores", [85, 90, 78, 92, 88])

# Add computed column
add_column(ctx, "total", formula="price * quantity")

# Add column with complex formula
add_column(ctx, "full_name", formula="first_name + ' ' + last_name")
ParametersJSON Schema
NameRequiredDescriptionDefault
nameYesName for the new column to add
valueNoSingle value for all rows or list of values (one per row)
formulaNoSafe mathematical expression to compute column values (e.g., 'col1 + col2')

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A3.7/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions the return type ('ColumnOperationResult') which adds value, but doesn't address important behavioral aspects like whether this operation modifies the original dataframe in-place, what happens if a column with the same name already exists, or any performance considerations. The examples help but don't fully compensate for the lack of behavioral context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized and front-loaded with the core purpose statement. The examples are well-organized and demonstrate key use cases efficiently. However, the 'Returns:' section could be integrated more seamlessly, and the description could be slightly more concise by combining the purpose and return statement.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (3 parameters, mutation operation), no annotations, but with 100% schema coverage and an output schema (implied by 'Returns: ColumnOperationResult'), the description is reasonably complete. The examples provide practical guidance, though it could benefit from more behavioral context about the mutation's effects and error conditions.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 100% schema description coverage, the baseline is 3. The description adds value through the examples that illustrate three distinct parameter usage patterns: constant value, list of values, and computed column via formula. This provides practical semantic context beyond the schema's technical descriptions, though it doesn't explain parameter interactions or constraints.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('Add a new column') and resource ('to the dataframe'), distinguishing it from sibling tools like 'update_column', 'rename_columns', or 'remove_columns'. The verb+resource combination is precise and unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives like 'update_column' or 'transform_column_case'. While examples show different use cases, there's no explicit when/when-not guidance or mention of prerequisites for using this tool over others in the sibling list.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

change_column_typeB

Change the data type of a column.

Returns: ColumnOperationResult with conversion details

Examples: # Convert string numbers to integers change_column_type(ctx, "age", "int")

# Convert to float, replacing errors with NaN
change_column_type(ctx, "price", "float", errors="coerce")

# Convert to datetime
change_column_type(ctx, "date", "datetime")

# Convert to boolean
change_column_type(ctx, "is_active", "bool")
ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesColumn name to change data type for
dtypeYesTarget data type (int, float, str, bool, datetime)
errorsNoError handling: 'raise' for errors, 'coerce' to replace invalid values with NaNcoerce

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

B3.2/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions the return type ('ColumnOperationResult with conversion details') and shows error handling in examples, but doesn't address important behavioral aspects like whether this operation is destructive, requires specific permissions, or has performance implications for large datasets.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized with a clear purpose statement followed by return information and helpful examples. The examples are well-organized and demonstrate common use cases efficiently, though the structure could be slightly improved by separating the purpose statement from the return information more clearly.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has an output schema (mentioned in the description) and the input schema has 100% coverage, the description provides adequate context. The examples add practical value, though for a data transformation tool with no annotations, it could benefit from more behavioral context about data integrity implications or performance considerations.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema has 100% description coverage, so parameters are well-documented in the structured schema. The description adds minimal value beyond what's already in the schema - it shows examples of parameter usage but doesn't provide additional semantic context or edge cases beyond what the schema descriptions already cover.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with a specific verb ('change') and resource ('data type of a column'), making it immediately understandable. However, it doesn't explicitly differentiate from sibling tools like 'update_column' or 'transform_column_case', which might have overlapping functionality.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives like 'update_column' or 'transform_column_case'. It includes examples that show common use cases, but lacks explicit when/when-not instructions or prerequisites for usage.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

check_data_qualityC

Check data quality based on predefined or custom rules.

Returns: DataQualityResult with comprehensive quality assessment results

ParametersJSON Schema
NameRequiredDescriptionDefault
rulesNoList of quality rules to check (None = use default rules)

Output Schema

ParametersJSON Schema
NameRequiredDescription
quality_resultsYesComprehensive quality assessment results

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It mentions 'predefined or custom rules' and returns a 'comprehensive quality assessment,' but lacks details on behavioral traits: e.g., whether it's read-only (likely, but not stated), performance implications, data sources, or error handling. The description adds minimal context beyond the basic operation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately concise with two sentences: one stating the purpose and one describing the return. It's front-loaded with the core function. No wasted words, though it could be slightly more structured (e.g., separating usage notes).

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (multiple rule types) and rich input schema (100% coverage) with an output schema (implied by 'Returns'), the description is minimally adequate. It covers the basic purpose and return type but lacks context on when to use, behavioral details, or integration with siblings. With no annotations, it should do more to compensate.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema fully documents the single parameter 'rules' with its types and defaults. The description adds no parameter semantics beyond what's in the schema (e.g., it doesn't explain rule interactions or provide examples). Baseline 3 is appropriate as the schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Check data quality based on predefined or custom rules.' It specifies the verb ('check') and resource ('data quality'), and distinguishes it from siblings like 'detect_outliers' or 'find_anomalies' by focusing on comprehensive rule-based assessment. However, it doesn't explicitly differentiate from 'validate_schema' or 'profile_data', which could be related.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention when to prefer this over siblings like 'detect_outliers' (which might handle a subset of checks) or 'validate_schema' (which might focus on structural validation). No context, exclusions, or prerequisites are stated.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

delete_rowA

Delete row at specified index with comprehensive tracking.

Captures deleted data for undo operations. Returns operation result with before/after statistics.

ParametersJSON Schema
NameRequiredDescriptionDefault
row_indexYesRow index (0-based) to delete

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationNoOperation type identifier
row_indexYesIndex of deleted row
rows_afterYesRow count after deletion
rows_beforeYesRow count before deletion
deleted_dataYesData from the deleted row

TDQS

A3.6/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively adds context beyond basic deletion by mentioning 'comprehensive tracking', 'captures deleted data for undo operations', and 'returns operation result with before/after statistics'. This covers key behavioral traits like data recovery and result format, though it could detail error handling or side effects.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is efficiently structured in three sentences, each adding value: the first states the core action, the second explains tracking for undo, and the third specifies the return format. There is no wasted text, and information is front-loaded with the primary purpose, making it highly concise and well-organized.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given a destructive operation with no annotations but an output schema (implied by 'Has output schema: true'), the description is reasonably complete. It covers the action, tracking for undo, and return statistics, which compensates for missing annotation details. However, it could improve by addressing potential errors or dependencies, though the output schema may handle return values.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, with 'row_index' clearly documented as 'Row index (0-based) to delete'. The description adds no additional parameter semantics beyond this, such as valid ranges or constraints. Given the high schema coverage, a baseline score of 3 is appropriate, as the schema handles the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Delete' and resource 'row at specified index', making the purpose unambiguous. It distinguishes from siblings like 'remove_columns' or 'remove_duplicates' by focusing on a single row deletion. However, it doesn't explicitly differentiate from 'update_row' which might also modify rows, leaving slight room for improvement.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives like 'remove_columns' or 'filter_rows'. It mentions 'undo operations' but doesn't specify prerequisites or exclusions, such as whether it requires specific permissions or data states. This lack of contextual direction leaves the agent to infer usage scenarios.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

detect_outliersA

Detect outliers in numerical columns using various algorithms.

Identifies data points that deviate significantly from the normal pattern using statistical and machine learning methods. Essential for data quality assessment and anomaly detection in analytical workflows.

Returns: Detailed outlier analysis with locations and severity scores

Detection Methods: 📊 Z-Score: Statistical method based on standard deviations 📈 IQR: Interquartile range method (robust to distribution) 🤖 Isolation Forest: ML-based method for high-dimensional data

Examples: # Basic outlier detection outliers = await detect_outliers(ctx, ["price", "quantity"])

# Use IQR method with custom threshold
outliers = await detect_outliers(ctx, ["sales"],
                                method="iqr", threshold=2.5)

AI Workflow Integration: 1. Data quality assessment and cleaning 2. Anomaly detection for fraud/error identification 3. Data preprocessing for machine learning 4. Understanding data distribution characteristics

ParametersJSON Schema
NameRequiredDescriptionDefault
columnsNoList of numerical columns to analyze for outliers (None = all numeric)
methodNoDetection algorithm: zscore, iqr, or isolation_forestiqr
thresholdNoSensitivity threshold (higher = less sensitive)

Output Schema

ParametersJSON Schema
NameRequiredDescription
methodYesDetection method used
successNoWhether operation completed successfully
thresholdYesThreshold value used for detection
outliers_foundYesTotal number of outliers detected
outliers_by_columnYesOutliers grouped by column name

TDQS

A4.1/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden and does well: it explains what the tool returns ('Detailed outlier analysis with locations and severity scores'), describes three detection methods with their characteristics, and provides example usage patterns. It doesn't mention performance, rate limits, or data size constraints, but covers core behavior adequately.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (Returns, Detection Methods, Examples, AI Workflow Integration), but it's somewhat verbose. Some content like the emoji-enhanced method descriptions and numbered workflow list could be more concise while maintaining clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (statistical/ML outlier detection), no annotations, but 100% schema coverage and an output schema exists, the description is complete enough. It explains purpose, methods, returns, usage examples, and integration contexts—providing all necessary context for an AI agent to understand and invoke the tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all three parameters thoroughly. The description adds minimal parameter semantics beyond the schema—it mentions 'custom threshold' in an example and lists method names in the 'Detection Methods' section, but doesn't provide additional meaning about parameter interactions or effects.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Detect outliers in numerical columns using various algorithms.' It specifies the verb ('detect'), resource ('outliers in numerical columns'), and distinguishes it from siblings like 'find_anomalies' by emphasizing statistical/ML methods for outlier detection rather than general anomaly finding.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The 'AI Workflow Integration' section provides clear context for when to use this tool (data quality assessment, anomaly detection, preprocessing, distribution analysis). However, it doesn't explicitly state when NOT to use it or name specific alternatives among siblings (e.g., 'find_anomalies' might overlap).

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

extract_from_columnA

Extract patterns from a column using regex with capturing groups.

Returns: ColumnOperationResult with extraction details

Examples: # Extract email parts extract_from_column(ctx, "email", r"(.+)@(.+)")

# Extract code components
extract_from_column(ctx, "product_code", r"([A-Z]{2})-(\d+)")

# Extract and expand into multiple columns
extract_from_column(ctx, "full_name", r"(\w+)\s+(\w+)", expand=True)

# Extract year from date string
extract_from_column(ctx, "date", r"\d{4}")
ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesColumn name to extract patterns from
patternYesRegex pattern with capturing groups to extract
expandYesWhether to expand multiple groups into separate columns

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A3.5/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden but only partially discloses behavior. It mentions the return type ('ColumnOperationResult with extraction details') and shows examples of regex usage, but omits critical details like error handling, performance implications, or whether the operation modifies the original dataset versus creating a new one.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized and front-loaded with the core purpose, followed by useful examples. However, the examples section is lengthy relative to the explanatory text, slightly reducing efficiency.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (regex operations), 100% schema coverage, and presence of an output schema (implied by 'Returns: ColumnOperationResult'), the description is mostly complete. It covers purpose and examples well, but could better address behavioral aspects like mutability or error cases.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description adds minimal value beyond the schema by illustrating parameter usage in examples (e.g., 'expand=True' for multiple columns), but doesn't provide additional semantic context like regex pattern validation or column existence requirements.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('extract patterns from a column using regex with capturing groups'), identifies the resource ('a column'), and distinguishes it from sibling tools like 'split_column' or 'replace_in_column' by focusing on regex-based extraction rather than other column operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides implied usage through examples (e.g., extracting email parts, code components, names), but lacks explicit guidance on when to use this tool versus alternatives like 'split_column' or 'replace_in_column'. No exclusions or prerequisites are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

fill_column_nullsA

Fill null/NaN values in a specific column with a specified value.

Returns: ColumnOperationResult with fill details

Examples: # Fill missing names with "Unknown" fill_column_nulls(ctx, "name", "Unknown")

# Fill missing ages with 0
fill_column_nulls(ctx, "age", 0)

# Fill missing status with default
fill_column_nulls(ctx, "status", "pending")

# Fill missing scores with -1
fill_column_nulls(ctx, "score", -1)
ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesColumn name to fill null values in
valueYesValue to use for filling null/NaN values

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden. It clearly describes the mutation behavior (filling nulls) and mentions the return type 'ColumnOperationResult with fill details', which adds useful context. However, it doesn't disclose potential side effects, permissions needed, or whether the operation is reversible.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Perfectly structured with a clear purpose statement upfront, followed by return information, then practical examples. Every sentence earns its place - the examples are particularly valuable for showing different use cases without being redundant.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has an output schema (implied by 'Returns: ColumnOperationResult'), the description doesn't need to explain return values in detail. With 100% schema coverage and clear examples, it provides good context for a data transformation tool. The main gap is lack of explicit guidance on when to choose this over similar tools.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents both parameters well. The description adds value through multiple concrete examples showing different data types for the 'value' parameter (string, number, default status), which helps illustrate semantic usage beyond the schema's technical definitions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('Fill null/NaN values') on a specific resource ('in a specific column') with a specific mechanism ('with a specified value'). It distinguishes from sibling tools like 'fill_missing_values' by specifying it operates on a single column rather than potentially broader operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage when null/NaN values need to be replaced in a column, but doesn't explicitly state when to use this versus alternatives like 'fill_missing_values' or 'update_column'. The examples provide context but no explicit guidance on tool selection criteria.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

fill_missing_valuesA

Fill or remove missing values with comprehensive strategy support.

Provides multiple strategies for handling missing data, including statistical imputation methods. Handles different data types appropriately and validates strategy compatibility with column types.

Examples: # Drop rows with any missing values fill_missing_values(ctx, strategy="drop")

# Fill missing values with 0
fill_missing_values(ctx, strategy="fill", value=0)

# Forward fill specific columns
fill_missing_values(ctx, strategy="forward", columns=["price", "quantity"])

# Fill with column mean for numeric columns
fill_missing_values(ctx, strategy="mean", columns=["age", "salary"])
ParametersJSON Schema
NameRequiredDescriptionDefault
strategyNoStrategy for handling missing values (drop, fill, forward, backward, mean, median, mode)drop
valueNoValue to use when strategy is 'fill'
columnsNoColumns to process (None = all columns)

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A3.6/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It adds some behavioral context by mentioning 'validates strategy compatibility with column types' and implying data mutation (e.g., 'fill' or 'drop'), but doesn't disclose critical details like whether the operation is destructive to original data, error handling, or performance considerations. The examples help but don't fully compensate for the lack of annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with a clear opening statement followed by bullet-point-like examples. It's appropriately sized, but the examples section is lengthy and could be more concise. Every sentence adds value, though some redundancy exists between the description text and examples.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (3 parameters, 100% schema coverage, output schema exists), the description is fairly complete. It covers purpose, strategies, and usage examples. With an output schema present, it doesn't need to explain return values. However, it could improve by addressing sibling tool differentiation and more behavioral details, given the lack of annotations.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema description coverage is 100%, so the baseline is 3. The description adds value by providing concrete examples that illustrate parameter usage (e.g., 'strategy="drop"' or 'columns=["price", "quantity"]'), which clarifies semantics beyond the schema's enum and descriptions. However, it doesn't explain edge cases or interactions between parameters in depth.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Fill or remove missing values with comprehensive strategy support.' It specifies the verb ('fill or remove') and resource ('missing values'), and mentions 'multiple strategies' and 'handles different data types.' However, it doesn't explicitly differentiate from sibling tools like 'fill_column_nulls' or 'check_data_quality,' which might have overlapping functionality.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides implied usage through examples (e.g., 'Drop rows with any missing values'), which suggests when to use certain strategies. However, it lacks explicit guidance on when to choose this tool over alternatives like 'fill_column_nulls' or 'check_data_quality,' and doesn't mention prerequisites or exclusions (e.g., data must be loaded first).

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

filter_rowsA

Filter rows using flexible conditions: comprehensive null value and text matching support.

Provides powerful filtering capabilities optimized for AI-driven data analysis. Supports multiple operators, logical combinations, and comprehensive null value handling.

Examples: # Numeric filtering filter_rows(ctx, [{"column": "age", "operator": ">", "value": 25}])

# Text filtering with null handling
filter_rows(ctx, [
    {"column": "name", "operator": "contains", "value": "Smith"},
    {"column": "email", "operator": "is_not_null"}
], mode="and")

# Multiple conditions with OR logic
filter_rows(ctx, [
    {"column": "status", "operator": "==", "value": "active"},
    {"column": "priority", "operator": "==", "value": "high"}
], mode="or")
ParametersJSON Schema
NameRequiredDescriptionDefault
conditionsYesList of filter conditions with column, operator, and value
modeNoLogic for combining conditions (and/or)and

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
rows_afterYesRow count after filtering
rows_beforeYesRow count before filtering
rows_filteredYesNumber of rows removed by filter
conditions_appliedYesNumber of filter conditions applied

TDQS

A3.5/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It discloses behavioral traits like 'flexible conditions,' 'multiple operators,' 'logical combinations,' and 'comprehensive null value handling,' which are useful beyond basic filtering. However, it doesn't mention performance implications, error handling, or what happens with invalid conditions. The examples add practical context but leave gaps in full behavioral understanding.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured, starting with a clear purpose statement, followed by supporting details and practical examples. It's appropriately sized for a complex tool, with each sentence adding value—no redundant information. However, the phrase 'optimized for AI-driven data analysis' is somewhat vague and could be trimmed without loss of clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (flexible filtering with multiple parameters), the description is reasonably complete. It covers key capabilities like operators and logic modes, supported by examples. With an output schema present (as indicated by context signals), the description doesn't need to explain return values. However, it could better address error cases or limitations to be fully comprehensive.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, thoroughly documenting 'conditions' and 'mode' with enums and examples. The description adds minimal value beyond this, as it doesn't explain parameter semantics like the structure of 'conditions' beyond what's in the schema. The examples illustrate usage but don't provide new semantic insights. With high schema coverage, the baseline score of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose as 'Filter rows using flexible conditions' with specific mention of 'null value and text matching support.' It distinguishes itself from siblings like 'select_columns' or 'get_row_data' by emphasizing conditional filtering rather than simple selection or retrieval. However, it doesn't explicitly differentiate from tools like 'find_cells_with_value' or 'detect_outliers' that might also involve filtering logic.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage through examples showing numeric filtering, text filtering with null handling, and logical combinations, suggesting it's for data analysis tasks. However, it lacks explicit guidance on when to use this tool versus alternatives like 'find_cells_with_value' or 'detect_outliers,' and doesn't mention prerequisites such as needing loaded data. The examples provide context but no clear 'when-not' scenarios.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

find_anomaliesC

Find anomalies in the data using multiple detection methods.

Returns: FindAnomaliesResult with comprehensive anomaly detection results

ParametersJSON Schema
NameRequiredDescriptionDefault
columnsNoList of columns to analyze (None = all columns)
sensitivityNoSensitivity threshold for anomaly detection (0-1)
methodsNoDetection methods to use (None = all methods)

Output Schema

ParametersJSON Schema
NameRequiredDescription
anomaliesYesComprehensive anomaly detection results
sensitivityYesSensitivity threshold used for detection (0.0-1.0)
methods_usedYesDetection methods that were applied
columns_analyzedYesNames of columns that were analyzed for anomalies

TDQS

C2.7/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden but offers minimal behavioral context. It mentions 'multiple detection methods' but doesn't explain what these methods do, their computational characteristics, or what 'comprehensive anomaly detection results' entails. No information about performance, side effects, or limitations is provided.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is brief (two sentences) and front-loaded with the core purpose. However, the second sentence about return values is somewhat redundant given the existence of an output schema. While efficient, it could be more structured with clearer separation between purpose and behavioral details.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (anomaly detection with multiple methods), no annotations, but 100% schema coverage and an output schema, the description is minimally adequate. It identifies the core function but lacks important context about method differences, performance expectations, and comparison to sibling tools. The output schema reduces but doesn't eliminate the need for behavioral explanation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already fully documents all three parameters (columns, sensitivity, methods). The description adds no parameter semantics beyond what's in the schema - it doesn't explain how these parameters interact, what 'sensitivity' means in practice, or provide examples of method combinations. Baseline 3 is appropriate when schema does all the work.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states 'Find anomalies in the data using multiple detection methods' which provides a clear verb ('find') and resource ('anomalies in data'), but it's somewhat vague about what constitutes 'anomalies' and doesn't distinguish from sibling tools like 'detect_outliers' or 'check_data_quality'. It doesn't specify what type of data anomalies are being detected (e.g., statistical outliers, missing values, pattern deviations).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives like 'detect_outliers' or 'check_data_quality'. There's no mention of prerequisites, expected data format, or comparative strengths/weaknesses of different anomaly detection methods. The agent must infer usage context from the tool name alone.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

find_cells_with_valueA

Find all cells containing a specific value for data discovery.

Searches through the dataset to locate all occurrences of a specific value, providing coordinates and context. Essential for data validation, quality checking, and understanding data patterns.

Returns: Locations of all matching cells with coordinates and context

Search Features: 🎯 Exact Match: Precise value matching with type consideration 🔍 Substring Search: Flexible text-based search for string columns 📍 Coordinates: Row and column positions for each match 📊 Summary Stats: Total matches, columns searched, search parameters

Examples: # Find all cells with value "ERROR" results = await find_cells_with_value(ctx, "ERROR")

# Substring search in specific columns
results = await find_cells_with_value(ctx, "john",
                                    columns=["name", "email"],
                                    exact_match=False)

AI Workflow Integration: 1. Data quality assessment and error detection 2. Pattern identification and data validation 3. Reference data location and verification 4. Data cleaning and preprocessing guidance

ParametersJSON Schema
NameRequiredDescriptionDefault
valueYesThe value to search for (any data type)
columnsYesList of columns to search (None = all columns)
exact_matchYesTrue for exact match, False for substring search

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
coordinatesYes
exact_matchYes
search_valueYes
matches_foundYes
search_columnNo

TDQS

A4.2/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes what the tool does: searches through datasets, returns coordinates and context, and includes search features like exact match vs. substring. It mentions return types ('Locations of all matching cells with coordinates and context') and provides examples, though it could add more on performance or limitations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (e.g., 'Returns:', 'Search Features:', 'Examples:', 'AI Workflow Integration:'), making it easy to scan. It is appropriately sized but could be slightly more concise, as some parts (like the workflow integration list) are somewhat verbose without adding critical information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (search operation with multiple parameters), no annotations, and the presence of an output schema (implied by 'Has output schema: true'), the description is complete. It covers purpose, usage, behavior, and examples, providing sufficient context for an AI agent to understand and invoke the tool effectively without needing to explain return values in detail.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, so the baseline is 3. The description adds minimal parameter semantics beyond the schema, such as implying 'value' can be 'any data type' and showing usage in examples, but it does not significantly enhance understanding of parameters like 'columns' or 'exact_match' beyond what the schema already provides.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Find all cells containing a specific value for data discovery.' It specifies the verb ('find'), resource ('cells'), and scope ('all'), and distinguishes itself from siblings like get_cell_value (single cell) or check_data_quality (broader validation).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context for when to use the tool ('data discovery,' 'data validation, quality checking, and understanding data patterns') and includes 'AI Workflow Integration' with specific use cases. However, it does not explicitly state when NOT to use it or name alternatives among siblings (e.g., vs. find_anomalies or check_data_quality).

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_cell_valueB

Get value of specific cell with coordinate targeting.

Supports column name or index targeting. Returns value with coordinates and data type information.

ParametersJSON Schema
NameRequiredDescriptionDefault
row_indexYesRow index (0-based) to retrieve cell from
columnYesColumn name or column index (0-based) to retrieve

Output Schema

ParametersJSON Schema
NameRequiredDescription
valueYesCell value (None if null/missing)
successNoWhether operation completed successfully
data_typeYesPandas data type of the column
coordinatesYesCell coordinates with row index and column name

TDQS

B3.2/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions that the tool 'Returns value with coordinates and data type information,' which adds some context about output format. However, it lacks critical details such as error handling (e.g., for invalid coordinates), performance implications, or whether it's a read-only operation (implied but not stated).

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise and well-structured: two sentences that efficiently convey core functionality and return information. Every sentence earns its place with no wasted words, and key details are front-loaded.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's low complexity (2 parameters, 100% schema coverage, output schema exists), the description is reasonably complete. It covers the basic operation and return format, and with an output schema, it doesn't need to detail return values. However, it could benefit from more behavioral context, especially since no annotations are provided.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already fully documents the two parameters (row_index and column). The description adds marginal value by noting 'Supports column name or index targeting,' which clarifies the dual nature of the 'column' parameter but doesn't provide additional syntax or format details beyond what the schema specifies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Get value of specific cell with coordinate targeting.' It specifies the verb ('Get'), resource ('value of specific cell'), and targeting method ('coordinate targeting'). However, it doesn't explicitly differentiate from sibling tools like 'get_column_data' or 'get_row_data' that retrieve broader data sets.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention sibling tools like 'get_column_data' for column-wide retrieval or 'find_cells_with_value' for value-based searches, nor does it specify prerequisites or exclusions for use.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_column_dataB

Get data from specific column with optional row range slicing.

Supports row range filtering for focused analysis. Returns column values with range metadata.

ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesColumn name to retrieve data from
start_rowNoStarting row index (inclusive, 0-based) for data slice
end_rowNoEnding row index (exclusive, 0-based) for data slice

Output Schema

ParametersJSON Schema
NameRequiredDescription
columnYesColumn name
valuesYesColumn values in specified range
end_rowNoEnding row index used (None if to end)
successNoWhether operation completed successfully
start_rowNoStarting row index used (None if from beginning)
total_valuesYesNumber of values returned

TDQS

B3.1/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries full burden. It mentions 'Returns column values with range metadata' which adds some behavioral context about output format. However, it doesn't disclose critical traits like whether this is a read-only operation, potential performance implications, error conditions, or data size limitations. For a data retrieval tool with zero annotation coverage, this is insufficient.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately concise with two sentences. The first sentence clearly states the core functionality, and the second adds context about filtering and returns. There's no wasted text, though it could be slightly more front-loaded with key differentiators.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given that there's an output schema (which handles return value documentation), 100% schema description coverage, and the tool's moderate complexity, the description is reasonably complete. It covers the basic operation and output format. However, for a data retrieval tool with many similar siblings, more guidance on usage context would improve completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all three parameters thoroughly. The description adds minimal value beyond the schema by mentioning 'optional row range slicing' and 'focused analysis,' but doesn't provide additional semantics about parameter interactions, default behaviors, or practical examples. This meets the baseline for high schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Get data from specific column with optional row range slicing.' It specifies the verb ('Get'), resource ('data from specific column'), and optional capability ('row range slicing'). However, it doesn't explicitly differentiate from sibling tools like 'get_cell_value' or 'get_row_data', which reduces the score from a perfect 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It mentions 'focused analysis' but doesn't specify scenarios or compare with siblings like 'get_cell_value' (single cell), 'get_row_data' (row-based), or 'extract_from_column' (similar sounding). Without explicit when/when-not instructions, the agent lacks context for tool selection.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_column_statisticsA

Get detailed statistical analysis for a single column.

Provides focused statistical analysis for a specific column including data type information, null value handling, and comprehensive numerical statistics when applicable.

Returns: Detailed statistical analysis for the specified column

Column Analysis: 🔍 Data Type: Detected pandas data type 📊 Statistics: Complete statistical summary for numeric columns 🔢 Non-null Count: Number of valid (non-null) values 📈 Distribution: Statistical distribution characteristics

Examples: # Analyze a price column stats = await get_column_statistics(ctx, "price")

# Analyze a categorical column
stats = await get_column_statistics(ctx, "category")

AI Workflow Integration: 1. Deep dive analysis for specific columns of interest 2. Data quality assessment for individual features 3. Understanding column characteristics for modeling 4. Validation of data transformations

ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesName of the column to analyze in detail

Output Schema

ParametersJSON Schema
NameRequiredDescription
columnYesName of the analyzed column
successNoWhether operation completed successfully
data_typeYesPandas data type of the column
statisticsYesStatistical summary for the column
non_null_countYesNumber of non-null values in the column

TDQS

A4.2/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It discloses behavioral traits like returning 'detailed statistical analysis' with specific components (data type, statistics, non-null count, distribution). However, it lacks details on error handling, performance characteristics, or limitations (e.g., column existence validation, data size constraints).

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with sections (Returns, Column Analysis, Examples, AI Workflow Integration) and uses bullet points for clarity. It is appropriately sized but could be more concise by integrating some repetitive elements (e.g., 'Detailed statistical analysis' appears twice).

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (statistical analysis), no annotations, and the presence of an output schema (implied by 'Has output schema: true'), the description is complete. It covers purpose, usage, parameter context, and behavioral aspects adequately without needing to explain return values due to the output schema.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, clearly documenting the 'column' parameter. The description adds value by providing examples of usage ('price', 'category') and context in the 'Column Analysis' section, which elaborates on what the analysis entails beyond the schema's basic parameter definition.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with specific verbs ('Get detailed statistical analysis', 'Provides focused statistical analysis') and identifies the resource ('for a single column'). It distinguishes from siblings like 'get_statistics' (general) and 'get_data_summary' (overall) by emphasizing single-column focus and detailed statistical analysis.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The 'AI Workflow Integration' section provides clear context for when to use this tool (e.g., 'Deep dive analysis for specific columns', 'Data quality assessment for individual features'). However, it does not explicitly state when NOT to use it or name specific alternatives among siblings, such as 'get_statistics' for broader analysis.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_correlation_matrixA

Calculate correlation matrix for numerical columns.

Computes pairwise correlations between numerical columns using various correlation methods. Essential for understanding relationships between variables and feature selection in analytical workflows.

Returns: Correlation matrix with pairwise correlation coefficients

Correlation Methods: 📊 Pearson: Linear relationships (default, assumes normality) 📈 Spearman: Monotonic relationships (rank-based, non-parametric) 🔄 Kendall: Concordant/discordant pairs (robust, small samples)

Examples: # Basic correlation analysis corr = await get_correlation_matrix(ctx)

# Analyze specific columns with Spearman correlation
corr = await get_correlation_matrix(ctx,
                                  columns=["price", "rating", "sales"],
                                  method="spearman")

# Filter correlations above threshold
corr = await get_correlation_matrix(ctx, min_correlation=0.5)

AI Workflow Integration: 1. Feature selection and dimensionality reduction 2. Multicollinearity detection before modeling 3. Understanding variable relationships 4. Data validation and quality assessment

ParametersJSON Schema
NameRequiredDescriptionDefault
methodNoCorrelation method: pearson (linear), spearman (rank), kendall (rank)pearson
columnsNoList of columns to include (None = all numeric columns)
min_correlationNoMinimum correlation threshold to include in results

Output Schema

ParametersJSON Schema
NameRequiredDescription
methodYesCorrelation method used for analysis
successNoWhether operation completed successfully
columns_analyzedYesNames of columns included in correlation analysis
correlation_matrixYesCorrelation coefficients between columns

TDQS

A4.6/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden and does well by explaining what gets computed ('pairwise correlations'), the three correlation methods with their characteristics, and the return format ('correlation matrix with pairwise correlation coefficients'). It doesn't mention performance characteristics, data size limitations, or error conditions, but provides substantial behavioral context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (purpose, returns, methods, examples, integration), but could be more concise. Some sentences like 'Essential for understanding relationships between variables and feature selection in analytical workflows' could be tightened. However, every section adds value and the information is front-loaded with the core purpose first.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (statistical computation with multiple methods), no annotations, but with output schema present, the description is remarkably complete. It covers purpose, usage scenarios, parameter guidance, method details, examples, and integration workflows. The output schema handles return values, so the description appropriately focuses on when and how to use the tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so baseline is 3. The description adds value by providing examples that demonstrate parameter usage in context, explaining what 'columns=None' means ('all numeric columns'), and showing how 'min_correlation' filters results. The correlation methods section elaborates beyond the schema's enum descriptions with practical guidance about when to use each method.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Calculate correlation matrix for numerical columns' with specific verb ('calculate') and resource ('correlation matrix'). It distinguishes from siblings by focusing on correlation analysis rather than data manipulation, transformation, or other statistical functions like 'get_column_statistics' or 'get_statistics'.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit usage guidance through the 'AI Workflow Integration' section, listing four specific scenarios: feature selection, multicollinearity detection, understanding relationships, and data validation. This tells the agent exactly when to use this tool versus alternatives like general statistics tools or data quality checks.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_data_summaryA

Get comprehensive data overview and structural summary.

Provides high-level overview of dataset structure, dimensions, data types, and memory usage. Essential first step in data exploration and analysis planning workflows.

Returns: Comprehensive data overview with structural information

Summary Components: 📏 Dimensions: Rows, columns, shape information 🔢 Data Types: Column type distribution and analysis 💾 Memory Usage: Resource consumption breakdown 👀 Preview: Sample rows for quick data understanding (optional) 📊 Overview: High-level dataset characteristics

Examples: # Full data summary with preview summary = await get_data_summary(ctx)

# Structure summary without preview data
summary = await get_data_summary(ctx, include_preview=False)

AI Workflow Integration: 1. Initial data exploration and understanding 2. Planning analytical approaches based on data structure 3. Resource planning for large dataset processing 4. Data quality initial assessment

ParametersJSON Schema
NameRequiredDescriptionDefault
include_previewYesInclude sample data rows in summary
max_preview_rowsYesMaximum number of preview rows to include

Output Schema

ParametersJSON Schema
NameRequiredDescription
shapeYes
columnsYes
previewNo
successNoWhether operation completed successfully
data_typesYes
missing_dataYes
memory_usage_mbYes
coordinate_systemYes

TDQS

A3.6/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It describes what the tool returns (comprehensive overview with structural information) and mentions optional preview functionality, but doesn't disclose performance characteristics, error conditions, or resource implications beyond memory usage breakdown.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (Returns, Summary Components, Examples, AI Workflow Integration) and uses bullet points effectively. While comprehensive, some sections could be more concise, and the emoji icons in the Summary Components add visual clutter without semantic value.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity and the presence of an output schema, the description provides good context about what the tool does and when to use it. The examples and workflow integration sections add practical guidance. However, for a tool with no annotations, more behavioral details about performance or limitations would improve completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, so the schema already documents both parameters thoroughly. The description adds minimal value beyond the schema through the examples showing parameter usage, but doesn't provide additional semantic context about parameter interactions or effects.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose as providing a 'comprehensive data overview and structural summary' with specific components like dimensions, data types, memory usage, and preview. It distinguishes from siblings by focusing on high-level structural analysis rather than specific operations like filtering or transformation, though it doesn't explicitly name alternatives.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context for when to use the tool ('Essential first step in data exploration and analysis planning workflows') and includes an 'AI Workflow Integration' section with specific use cases. However, it doesn't explicitly state when NOT to use it or name alternative tools for similar purposes.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_row_dataB

Get data from specific row with optional column filtering.

Returns complete row data or filtered by column list. Converts pandas types for JSON serialization.

ParametersJSON Schema
NameRequiredDescriptionDefault
row_indexYesRow index (0-based) to retrieve data from
columnsNoOptional list of column names to retrieve (all columns if None)

Output Schema

ParametersJSON Schema
NameRequiredDescription
dataYesRow data as column name to value mapping
columnsYesList of column names included in data
successNoWhether operation completed successfully
row_indexYesRow index (0-based)

TDQS

B3.4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It adds some behavioral context: 'Returns complete row data or filtered by column list' clarifies the output behavior, and 'Converts pandas types for JSON serialization' discloses a data transformation trait. However, it doesn't cover error handling, performance implications, or other operational details that would be helpful for an agent.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise and well-structured: two sentences that efficiently convey the core functionality and a key behavioral trait. Every sentence earns its place with no wasted words, making it easy for an agent to parse quickly.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given that there is an output schema (though not shown here), the description doesn't need to explain return values. It covers the essential purpose and a key behavioral trait (pandas type conversion). For a read operation with good schema coverage and output schema, this is reasonably complete, though it could benefit from more usage context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already fully documents both parameters (row_index and columns). The description adds minimal value beyond the schema: it mentions 'optional column filtering' which aligns with the schema's description of columns as 'Optional list of column names to retrieve (all columns if None).' This meets the baseline for high schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Get data from specific row with optional column filtering.' It specifies the verb ('Get'), resource ('data from specific row'), and scope ('optional column filtering'). However, it doesn't explicitly differentiate from sibling tools like 'get_cell_value' or 'get_column_data', which reduces it from a perfect score.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention sibling tools like 'get_cell_value' (for single cells), 'get_column_data' (for columns), or 'filter_rows' (for multiple rows), leaving the agent to infer usage context from the name alone.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_server_infoA

Get DataBeak server capabilities and supported operations.

Returns server version, available tools, supported file formats, and resource limits. Use to discover what operations are available before planning workflows.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

Output Schema

ParametersJSON Schema
NameRequiredDescription
nameYesServer name and identification
successNoWhether operation completed successfully
versionYesCurrent server version
descriptionYesServer description and purpose
capabilitiesYesAvailable operations organized by category
max_download_size_mbYesMaximum download size from URLs in MB
session_timeout_minutesYesDefault session timeout in minutes

TDQS

A4.4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It discloses that the tool returns specific information (server version, available tools, etc.) and implies it's a read-only discovery operation. However, it doesn't mention potential behavioral aspects like authentication requirements, rate limits, or whether it's idempotent. The description adds basic context but lacks richer behavioral details.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with the core purpose in the first sentence, followed by a concise usage guideline. Both sentences earn their place by providing essential information without redundancy. The structure is logical and efficiently communicates the tool's role.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's low complexity (0 parameters, no annotations, but with an output schema), the description is mostly complete. It explains the purpose and usage well, and the output schema will handle return values. However, for a tool with no annotations, it could benefit from more behavioral context (e.g., idempotency, side effects), though the output schema mitigates some gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has 0 parameters, and the input schema has 100% description coverage (though empty). The description doesn't need to explain parameters, but it implicitly confirms there are no required inputs by not mentioning any. This aligns perfectly with the schema, so a baseline of 4 is appropriate for a parameterless tool.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with a specific verb ('Get') and resource ('DataBeak server capabilities and supported operations'), and distinguishes it from all sibling tools which are data manipulation operations. It explicitly lists what information is returned (server version, available tools, etc.), making the purpose unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit guidance on when to use this tool: 'Use to discover what operations are available before planning workflows.' This clearly indicates it's for initial discovery and planning, distinguishing it from sibling tools that perform actual data operations. No misleading or missing guidance is present.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_session_infoA

Get comprehensive information about a specific session.

Returns session metadata, data status, and configuration. Essential for session management and workflow coordination.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
row_countNoNumber of rows if data loaded
created_atYesCreation timestamp (ISO format)
data_loadedYesWhether session has data loaded
column_countNoNumber of columns if data loaded
last_modifiedYesLast modification timestamp (ISO format)

TDQS

A3.5/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. While it mentions what information is returned (metadata, data status, configuration), it doesn't address important behavioral aspects like authentication requirements, rate limits, error conditions, or whether this operation has side effects. The description provides some context but leaves significant gaps.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is perfectly concise with two sentences that each earn their place. The first sentence states the core purpose, and the second provides essential context about its importance. No wasted words or redundant information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has 0 parameters, 100% schema coverage, and an output schema exists, the description provides adequate context about what the tool does and its importance. However, for a session information tool with no annotations, additional behavioral context (like whether this requires specific permissions or affects session state) would be beneficial.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has 0 parameters with 100% schema description coverage, so the schema fully documents the absence of parameters. The description appropriately doesn't discuss parameters, maintaining focus on the tool's purpose and return values. This meets the baseline expectation for parameterless tools.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with a specific verb ('Get') and resource ('comprehensive information about a specific session'), distinguishing it from siblings focused on data manipulation rather than session management. However, it doesn't explicitly differentiate from 'get_server_info' which might provide overlapping information.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides implied usage context ('Essential for session management and workflow coordination') but doesn't explicitly state when to use this tool versus alternatives like 'get_server_info' or other sibling tools. No explicit exclusions or when-not-to-use guidance is provided.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_statisticsA

Get comprehensive statistical summary of numerical columns.

Computes descriptive statistics for all or specified numerical columns including count, mean, standard deviation, min/max values, and percentiles. Optimized for AI workflows with clear statistical insights and data understanding.

Returns: Comprehensive statistical analysis with per-column summaries

Statistical Metrics: 📊 Count: Number of non-null values 📈 Mean: Average value 📉 Std: Standard deviation (measure of spread) 🔢 Min/Max: Minimum and maximum values 📊 Percentiles: 25th, 50th (median), 75th quartiles

Examples: # Get statistics for all numeric columns stats = await get_statistics("session_123")

# Analyze specific columns only
stats = await get_statistics("session_123", columns=["price", "quantity"])

# Analyze all numeric columns (percentiles always included)
stats = await get_statistics("session_123")

AI Workflow Integration: 1. Essential for data understanding and quality assessment 2. Identifies data distribution and potential issues 3. Guides feature engineering and analysis decisions 4. Provides context for outlier detection thresholds

ParametersJSON Schema
NameRequiredDescriptionDefault
columnsYesList of specific columns to analyze (None = all numeric columns)

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
statisticsYesStatistical summary for each column
total_rowsYesTotal number of rows in the dataset
column_countYesTotal number of columns analyzed
numeric_columnsYesNames of numeric columns that were analyzed

TDQS

A3.5/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It discloses that the tool is optimized for AI workflows and returns comprehensive statistical analysis, but does not cover behavioral aspects like performance, error handling, or data size limitations. It adds some context (e.g., 'percentiles always included') but lacks details on permissions, rate limits, or mutation effects. The transparency is adequate but has gaps.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with sections for returns, metrics, examples, and AI integration, making it easy to scan. However, it includes redundant elements (e.g., repeating 'Analyze all numeric columns' in examples) and could be more front-loaded by moving key usage details earlier. Most sentences earn their place, but some trimming would improve conciseness without losing clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (statistical analysis), no annotations, and the presence of an output schema, the description is reasonably complete. It covers purpose, metrics, examples, and integration, but lacks details on behavioral traits and explicit sibling differentiation. The output schema likely handles return values, so the description does not need to explain them. It is mostly sufficient but could be more comprehensive for a tool with no annotations.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, clearly documenting the 'columns' parameter. The description adds minimal value beyond the schema, mentioning 'all or specified numerical columns' and providing examples, but does not explain parameter semantics in depth (e.g., column name formats, handling of non-numeric columns). With high schema coverage, the baseline score of 3 is appropriate as the description does not significantly enhance parameter understanding.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool computes descriptive statistics for numerical columns, specifying the exact metrics (count, mean, standard deviation, min/max, percentiles). It distinguishes from siblings like 'get_column_statistics' by emphasizing 'comprehensive statistical summary' and 'all or specified numerical columns', though the distinction could be more explicit. The purpose is specific but not fully differentiated from similar tools.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for data understanding, quality assessment, and AI workflows, and provides examples for analyzing all or specific columns. However, it lacks explicit guidance on when to use this tool versus alternatives like 'get_column_statistics' or 'profile_data', and does not mention prerequisites or exclusions. The guidelines are helpful but incomplete for sibling differentiation.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_value_countsA

Get frequency distribution of values in a column.

Analyzes the distribution of values in a specified column, providing counts and optionally percentages for each unique value. Essential for understanding categorical data and identifying common patterns.

Returns: Frequency distribution with counts/percentages for each unique value

Analysis Features: 🔢 Frequency Counts: Raw counts for each unique value 📊 Percentage Mode: Normalized frequencies as percentages 🎯 Top Values: Configurable limit for most frequent values 📈 Summary Stats: Total values, unique count, distribution insights

Examples: # Basic value counts counts = await get_value_counts(ctx, "category")

# Get percentages for top 10 values
counts = await get_value_counts(ctx, "status",
                              normalize=True, top_n=10)

# Sort in ascending order
counts = await get_value_counts(ctx, "grade", ascending=True)

AI Workflow Integration: 1. Categorical data analysis and encoding decisions 2. Data quality assessment (identifying rare values) 3. Understanding distribution for sampling strategies 4. Feature engineering insights for categorical variables

ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesName of the column to analyze value distribution
normalizeYesReturn percentages instead of raw counts
sortYesSort results by frequency
ascendingYesSort in ascending order (False = descending)
top_nYesMaximum number of values to return (None = all values)

Output Schema

ParametersJSON Schema
NameRequiredDescription
columnYesName of the analyzed column
successNoWhether operation completed successfully
normalizeNoWhether counts are normalized as proportions
total_valuesYesTotal number of values (including duplicates)
value_countsYesCount or proportion of each unique value
unique_valuesYesNumber of unique/distinct values

TDQS

A3.8/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden. It describes what the tool returns ('frequency distribution with counts/percentages') and lists analysis features, but doesn't disclose important behavioral traits like whether this is a read-only operation, performance characteristics, data size limitations, or error conditions. The description adds useful context about what the tool provides but misses key operational details.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections, but contains some redundancy. The 'Returns' section repeats information from the opening paragraph, and the 'Analysis Features' section uses emojis that don't add semantic value. The examples and workflow integration sections are helpful but could be more concise while maintaining clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (5 parameters, no annotations, but with output schema), the description is reasonably complete. It explains the tool's purpose, provides usage examples, and outlines integration scenarios. The presence of an output schema means the description doesn't need to detail return values. However, for a data analysis tool with no annotations, more behavioral context would be beneficial.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all 5 parameters thoroughly. The description adds minimal value beyond the schema through the examples section, which shows practical usage patterns. However, it doesn't provide additional semantic context or edge cases not already covered in the parameter descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Get frequency distribution of values in a column' with specific verbs ('analyzes', 'providing') and resource ('column'). It distinguishes from siblings like get_column_statistics or get_data_summary by focusing specifically on value frequency analysis rather than general statistics.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The 'AI Workflow Integration' section provides clear context for when to use this tool (categorical data analysis, data quality assessment, sampling strategies, feature engineering). However, it doesn't explicitly state when NOT to use it or name specific alternatives among the sibling tools for similar tasks.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

group_by_aggregateA

Group data and compute aggregations for analytical insights.

Performs GROUP BY operations with multiple aggregation functions per column. Essential for segmentation analysis and understanding patterns across different data groups.

Returns: Grouped aggregation results with statistics per group

Aggregation Functions: 📊 count, mean, median, sum, min, max 📈 std, var (statistical measures) 🎯 first, last (positional) 📋 nunique (unique count)

Examples: # Sales analysis by region result = await group_by_aggregate(ctx, group_by=["region"], aggregations={"sales": ["sum", "mean", "count"]})

# Multi-dimensional grouping
result = await group_by_aggregate(ctx,
                                group_by=["category", "region"],
                                aggregations={
                                    "price": ["mean", "std"],
                                    "quantity": ["sum", "count"]
                                })

AI Workflow Integration: 1. Segmentation analysis and market research 2. Feature engineering for categorical interactions 3. Data summarization for reporting and insights 4. Understanding group-based patterns and trends

ParametersJSON Schema
NameRequiredDescriptionDefault
group_byYesList of columns to group by for segmentation analysis
aggregationsYesDict mapping column names to list of aggregation functions

Output Schema

ParametersJSON Schema
NameRequiredDescription
groupsYes
successNoWhether operation completed successfully
total_groupsYes
group_by_columnsYes
aggregated_columnsYes

TDQS

A4.1/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes the tool's behavior by detailing the aggregation functions available, providing example usage patterns, and explaining the return format ('grouped aggregation results with statistics per group'). It lacks explicit mention of performance characteristics or error handling, but covers core operational behavior well.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections but is somewhat verbose. Sentences like 'Essential for segmentation analysis and understanding patterns across different data groups' could be more concise. The examples and AI workflow integration add value but contribute to length, making it less front-loaded than ideal.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (analytical grouping with multiple functions), no annotations, and the presence of an output schema, the description is complete. It covers purpose, usage, behavior, parameters through examples, and return values, providing sufficient context for an AI agent to understand and invoke the tool effectively.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, so the baseline is 3. The description adds some value by listing aggregation functions and providing examples that illustrate how parameters work together, but does not significantly enhance the schema's documentation of group_by and aggregations parameters beyond what is already covered.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with specific verbs ('group data and compute aggregations') and distinguishes it from siblings by focusing on analytical segmentation rather than data manipulation or basic statistics. It explicitly mentions 'GROUP BY operations' and 'analytical insights,' differentiating it from tools like get_column_statistics or get_value_counts.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context for when to use this tool ('essential for segmentation analysis and understanding patterns across different data groups') and includes AI workflow integration examples. However, it does not explicitly state when NOT to use it or name specific alternatives among sibling tools, such as get_value_counts for simpler grouping.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

health_checkA

Check DataBeak server health and availability with memory monitoring.

Returns server status, session capacity, memory usage, and version information. Use before large operations to verify system readiness and resource availability.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

Output Schema

ParametersJSON Schema
NameRequiredDescription
statusYesServer health status: healthy, degraded, or unhealthy
successNoWhether operation completed successfully
versionYesDataBeak server version
max_sessionsYesMaximum allowed concurrent sessions
memory_statusYesMemory status: normal, warning, critical
active_sessionsYesNumber of currently active data sessions
memory_usage_mbYesCurrent memory usage in MB
memory_threshold_mbYesMemory usage threshold in MB
session_ttl_minutesYesSession timeout in minutes
history_operations_totalYesTotal operations in all session histories
history_limit_per_sessionYesMaximum operations per session history

TDQS

A4.2/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden. It discloses that the tool returns status, capacity, memory usage, and version information, which is useful behavioral context. However, it doesn't mention potential side effects, error conditions, or performance characteristics beyond what's implied by 'health check'.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is perfectly front-loaded with the core purpose in the first sentence, followed by return details and usage guidance. Both sentences earn their place with zero waste, making it highly efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity (0 parameters, has output schema), the description is mostly complete. It explains what the tool does, what it returns, and when to use it. The output schema will handle return value details, so the description doesn't need to explain those. A minor gap is lack of explicit mention about what constitutes 'unhealthy' status.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has 0 parameters with 100% schema description coverage, so the baseline would be 3. The description appropriately adds no parameter information since none exist, which is correct and earns a slightly higher score for not adding unnecessary details.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific verb ('Check') and resource ('DataBeak server health and availability') with additional scope ('with memory monitoring'). It distinguishes from siblings like 'get_server_info' by focusing on health/readiness rather than general server information.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit guidance on when to use ('Use before large operations to verify system readiness and resource availability'), which gives clear context. However, it doesn't explicitly mention when NOT to use or name specific alternatives among siblings.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

insert_rowB

Insert new row at specified index with multiple data formats.

Supports dict, list, and JSON string input with null value handling. Returns insertion result with before/after statistics.

ParametersJSON Schema
NameRequiredDescriptionDefault
row_indexYesIndex to insert row at (0-based, -1 to append at end)
dataYesRow data as dict, list, or JSON string

Output Schema

ParametersJSON Schema
NameRequiredDescription
columnsYesCurrent column names
successNoWhether operation completed successfully
operationNoOperation type identifier
row_indexYesIndex where row was inserted
rows_afterYesRow count after insertion
rows_beforeYesRow count before insertion
data_insertedYesActual data that was inserted

TDQS

B3.4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'null value handling' and 'Returns insertion result with before/after statistics,' which adds some behavioral context beyond basic functionality. However, it doesn't cover important aspects like error conditions, performance implications, whether the operation is atomic, or what specific statistics are returned. The description provides moderate transparency but leaves gaps for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately concise with three sentences that each add value: the core functionality, supported formats, and return information. It's front-loaded with the main purpose and avoids redundancy. While efficient, the second sentence could be slightly more structured for clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has an output schema (which handles return values), 100% schema description coverage, and no annotations, the description provides adequate context for a row insertion operation. It covers the core action, data format support, and mentions return statistics. For a mutation tool with good schema coverage and output schema, this is reasonably complete, though it could benefit from more behavioral details.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, so the schema already documents both parameters thoroughly. The description adds value by explaining the semantic meaning of 'multiple data formats' and clarifying that 'dict, list, and JSON string' are supported, which complements the schema's technical specification. However, it doesn't provide additional syntax examples or format details beyond what's implied by the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Insert new row at specified index with multiple data formats.' It specifies the verb ('Insert'), resource ('new row'), and scope ('at specified index'), but doesn't explicitly differentiate from sibling tools like 'add_column' or 'update_row' which might have overlapping functionality. The purpose is clear but lacks sibling distinction.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives like 'add_column' or 'update_row'. It mentions supported data formats but doesn't indicate prerequisites, constraints, or typical use cases. There's no explicit 'when-to-use' or 'when-not-to-use' information, leaving the agent to infer usage from context alone.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

inspect_data_aroundA

Inspect data around a specific coordinate for contextual analysis.

Examines the data surrounding a specific cell to understand context, patterns, and relationships. Useful for data validation, error investigation, and understanding local data patterns.

Returns: Contextual view of data around the specified coordinates

Inspection Features: 📍 Center Point: Specified cell as reference point 🔍 Radius View: Configurable area around center cell 📊 Data Context: Surrounding values for pattern analysis 🎯 Coordinates: Clear row/column reference system

Examples: # Inspect around a specific data point context = await inspect_data_around(ctx, row=50, column_name="price", radius=3)

# Minimal context view
context = await inspect_data_around(ctx, row=10,
                                  column_name="status", radius=1)

AI Workflow Integration: 1. Error investigation and data quality assessment 2. Pattern recognition in local data areas 3. Understanding data relationships and context 4. Validation of data transformations and corrections

ParametersJSON Schema
NameRequiredDescriptionDefault
rowYesRow index to center the inspection (0-based)
column_nameYesName of the column to center on
radiusNoNumber of rows/columns to include around center point

Output Schema

ParametersJSON Schema
NameRequiredDescription
radiusYes
successNoWhether operation completed successfully
surrounding_dataYes
center_coordinatesYes

TDQS

A4.4/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden and does well by explaining what the tool returns ('contextual view of data around the specified coordinates'), its inspection features (center point, radius view, data context), and practical applications. It doesn't mention performance implications, rate limits, or data size constraints, but provides substantial behavioral context beyond basic functionality.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with clear sections (purpose, returns, features, examples, workflow integration) and uses emojis for visual organization. While somewhat lengthy, every section adds value. The front-loaded purpose statement is strong, though the later sections could be more condensed while maintaining clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity, 100% schema coverage, and presence of an output schema, the description provides excellent contextual completeness. It covers purpose, usage scenarios, behavioral characteristics, examples, and integration workflows. The output schema existence means the description doesn't need to detail return values, and it provides all necessary context for effective tool selection and use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema description coverage is 100%, providing complete parameter documentation. The description adds minimal value beyond the schema, mentioning 'configurable area around center cell' for radius and 'clear row/column reference system' for coordinates, but doesn't provide additional semantic context about parameter interactions or edge cases. This meets the baseline 3 for high schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with specific verbs ('inspect', 'examines') and resources ('data around a specific coordinate'), distinguishing it from siblings like get_cell_value (single cell) or get_row_data (entire row). It explicitly mentions 'contextual analysis' and 'understanding local data patterns', which differentiates it from broader analysis tools like profile_data or get_data_summary.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit usage guidance with 'Useful for data validation, error investigation, and understanding local data patterns' and 'AI Workflow Integration' section listing specific scenarios (error investigation, pattern recognition, etc.). It clearly indicates when to use this tool versus alternatives like get_cell_value (single point) or get_row_data (entire row) by emphasizing the 'surrounding' context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

load_csv_from_contentA

Load CSV data from string content into DataBeak session.

Parses CSV data directly from string with validation. Returns session ID and data preview for further operations.

ParametersJSON Schema
NameRequiredDescriptionDefault
contentYesCSV data as string content
delimiterNoColumn delimiter character (comma, tab, semicolon, pipe),
header_configNoHeader detection configuration

Output Schema

ParametersJSON Schema
NameRequiredDescription
dataNoSample of loaded data
successNoWhether operation completed successfully
rows_affectedYesNumber of rows loaded
memory_usage_mbNoMemory usage in megabytes
columns_affectedYesList of column names detected

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'validation' and 'returns session ID and data preview', which are useful behavioral details. However, it doesn't describe error handling, performance characteristics, or what happens to existing session data. The description adds some value but lacks comprehensive behavioral context for a data loading operation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is perfectly concise with just two sentences that each earn their place. The first sentence states the core purpose, and the second adds important behavioral context about validation and return values. No wasted words or redundant information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has an output schema (which handles return value documentation) and 100% schema description coverage, the description is reasonably complete. It covers the core purpose, source format, and key behaviors. However, for a data loading tool with no annotations, it could benefit from more explicit guidance about error conditions, data size limitations, or session management implications.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all three parameters thoroughly. The description doesn't add any parameter-specific information beyond what's in the schema. It mentions 'CSV data as string content' which aligns with the 'content' parameter, but provides no additional syntax, format, or usage details beyond the schema's comprehensive descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with specific verbs ('Load CSV data', 'Parses CSV data') and resource ('from string content into DataBeak session'). It distinguishes from sibling tools like 'load_csv_from_url' by specifying the source is string content rather than a URL.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context about when to use this tool ('Load CSV data from string content'), but doesn't explicitly mention when not to use it or provide detailed alternatives. It implies usage for CSV data in string format, but doesn't contrast with other data loading methods beyond the sibling 'load_csv_from_url'.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

load_csv_from_urlA

Load CSV file from URL into DataBeak session.

Downloads and parses CSV data with security validation. Returns session ID and data preview for further operations.

ParametersJSON Schema
NameRequiredDescriptionDefault
urlYesURL of the CSV file to download and load
encodingNoText encoding for file reading (utf-8, latin1, cp1252, etc.)utf-8
delimiterNoColumn delimiter character (comma, tab, semicolon, pipe),
header_configNoHeader detection configuration

Output Schema

ParametersJSON Schema
NameRequiredDescription
dataNoSample of loaded data
successNoWhether operation completed successfully
rows_affectedYesNumber of rows loaded
memory_usage_mbNoMemory usage in megabytes
columns_affectedYesList of column names detected

TDQS

A3.5/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden. It mentions 'security validation' which adds useful behavioral context beyond basic loading. However, it doesn't disclose important traits like timeout behavior, error handling for malformed URLs/CSVs, memory usage implications, or whether the operation is idempotent. The description covers basic safety but lacks operational details.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately concise with three sentences that each serve a purpose: stating the core function, describing the process, and indicating the return value. It's front-loaded with the main purpose. Minor improvement could be made by combining sentences, but overall it's efficient with zero wasted text.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has an output schema (returns session ID and data preview) and 100% schema description coverage, the description provides adequate context. It covers the core operation, mentions security validation, and indicates the return purpose. For a data loading tool with good schema documentation, this description is reasonably complete though it could benefit from more behavioral context given the absence of annotations.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, providing detailed parameter documentation. The description adds minimal value beyond the schema - it mentions 'Downloads and parses CSV data' which reinforces the url parameter purpose, but doesn't provide additional context about parameter interactions or usage patterns. Baseline 3 is appropriate when schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Load CSV file from URL into DataBeak session' specifies the verb (load), resource (CSV file), and destination (DataBeak session). It distinguishes from 'load_csv_from_content' by specifying URL source. However, it doesn't explicitly contrast with other data loading or manipulation siblings beyond the name difference.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage context through 'for further operations' and distinguishes from 'load_csv_from_content' by specifying URL source. However, it doesn't provide explicit guidance on when to use this tool versus alternatives like direct database connections or other data ingestion methods, nor does it mention prerequisites like URL accessibility or file size limits.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

profile_dataA

Generate comprehensive data profile with statistical insights.

Creates a complete analytical profile of the dataset including column characteristics, data types, null patterns, and statistical summaries. Provides holistic data understanding for analytical workflows.

Returns: Comprehensive data profile with multi-dimensional analysis

Profile Components: 📊 Column Profiles: Data types, null patterns, uniqueness 📈 Statistical Summaries: Numerical column characteristics 🔗 Correlations: Inter-variable relationships (optional) 🎯 Outliers: Anomaly detection across columns (optional) 💾 Memory Usage: Resource consumption analysis

Examples: # Full data profile profile = await profile_data(ctx)

# Quick profile without expensive computations
profile = await profile_data(ctx,
                           include_correlations=False,
                           include_outliers=False)

AI Workflow Integration: 1. Initial data exploration and understanding 2. Automated data quality reporting 3. Feature engineering guidance 4. Data preprocessing strategy development

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

Output Schema

ParametersJSON Schema
NameRequiredDescription
profileYes
successNoWhether operation completed successfully
total_rowsYes
total_columnsYes
memory_usage_mbYes
include_outliersNo
include_correlationsNo

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It does well by detailing what the tool returns ('Comprehensive data profile with multi-dimensional analysis') and listing specific profile components (e.g., 'Column Profiles', 'Statistical Summaries'). It also mentions optional features ('Correlations', 'Outliers') and resource considerations ('Memory Usage'), though it could clarify computational cost or performance implications more explicitly.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with a clear purpose but becomes verbose with sections like 'Profile Components' (using emojis) and 'AI Workflow Integration'. While informative, some details (e.g., the emoji list) could be condensed. The structure is logical but not maximally efficient, with sentences that add value but could be tighter.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (comprehensive profiling), no annotations, and an output schema present, the description is highly complete. It covers purpose, usage, behavioral traits, and optional features thoroughly. The output schema handles return values, so the description appropriately focuses on context and integration without redundancy.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 0 parameters with 100% coverage, so the baseline is 4. The description adds value by explaining optional behaviors through examples (e.g., 'include_correlations=False', 'include_outliers=False'), which provides semantic context beyond the empty schema. However, it doesn't fully document these as formal parameters, leaving some ambiguity.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose as 'Generate comprehensive data profile with statistical insights' and 'Creates a complete analytical profile of the dataset', specifying the verb ('generate', 'creates') and resource ('data profile', 'analytical profile'). It distinguishes from siblings like 'get_data_summary' or 'get_column_statistics' by emphasizing comprehensiveness and multi-dimensional analysis.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description explicitly provides usage guidelines under 'AI Workflow Integration', listing four specific scenarios (e.g., 'Initial data exploration', 'Automated data quality reporting'). It also distinguishes from alternatives in the examples section by showing how to exclude optional components like correlations and outliers, which helps differentiate from tools like 'get_correlation_matrix' or 'detect_outliers'.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

remove_columnsC

Remove columns from the dataframe.

Returns: ColumnOperationResult with removal details

Examples: # Remove single column remove_columns(ctx, ["temp_column"])

# Remove multiple columns
remove_columns(ctx, ["col1", "col2", "col3"])

# Clean up after analysis
remove_columns(ctx, ["_temp", "_backup", "old_value"])
ParametersJSON Schema
NameRequiredDescriptionDefault
columnsYesList of column names to remove from the dataframe

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the tool removes columns and returns a 'ColumnOperationResult with removal details,' which gives some behavioral insight. However, it lacks critical details: it doesn't specify if the removal is permanent or reversible, mention error handling for non-existent columns, or describe the format of the result details. For a mutation tool with zero annotation coverage, this leaves significant gaps in understanding its behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured and appropriately sized. It starts with a clear purpose statement, followed by return details and examples. The examples are relevant and demonstrate common use cases without unnecessary elaboration. There is no wasted text, and the information is front-loaded, making it easy to understand quickly.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (a mutation operation with one parameter) and the presence of an output schema (implied by 'Has output schema: true'), the description is moderately complete. It covers the basic purpose and provides examples, but lacks behavioral details like error handling or permanence of changes. The output schema likely documents the 'ColumnOperationResult,' reducing the need for return value explanation, but the description could benefit from more context on usage and alternatives.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, with the 'columns' parameter clearly documented as 'List of column names to remove from the dataframe.' The description adds minimal value beyond this, as it doesn't provide additional semantics like constraints or examples of valid column names. However, the examples illustrate usage with single and multiple columns, offering some practical context. Given the high schema coverage, a baseline score of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Remove columns from the dataframe.' It specifies the verb ('Remove') and resource ('columns from the dataframe'), making the action explicit. However, it doesn't explicitly differentiate from sibling tools like 'rename_columns' or 'select_columns', which also manipulate columns but serve different purposes.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It includes examples but doesn't mention when to choose this over sibling tools like 'rename_columns' or 'select_columns', nor does it discuss prerequisites or exclusions. The examples imply cleanup scenarios, but this is not stated as explicit usage advice.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

remove_duplicatesA

Remove duplicate rows from the dataframe with comprehensive validation.

Provides flexible duplicate removal with options for column subset selection and different keep strategies. Handles edge cases and provides detailed statistics about the deduplication process.

Examples: # Remove exact duplicate rows remove_duplicates(ctx)

# Remove duplicates based on specific columns
remove_duplicates(ctx, subset=["email", "name"])

# Keep last occurrence instead of first
remove_duplicates(ctx, subset=["id"], keep="last")

# Remove all duplicates (keep none)
remove_duplicates(ctx, subset=["email"], keep="none")
ParametersJSON Schema
NameRequiredDescriptionDefault
subsetNoColumns to consider for duplicates (None = all columns)
keepNoWhich duplicates to keep: first, last, or nonefirst

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A3.5/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It mentions 'comprehensive validation,' 'handles edge cases,' and 'provides detailed statistics,' which adds some behavioral context beyond the basic operation. However, it does not detail permissions, side effects, or error handling, leaving gaps for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized and front-loaded with the core purpose. The examples are helpful but could be more concise; overall, most sentences earn their place by illustrating flexibility, though some redundancy exists with the schema.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (mutation with parameters), no annotations, but a rich input schema (100% coverage) and an output schema (implied by context signals), the description is fairly complete. It covers purpose, flexibility, and examples, though more behavioral details would enhance it.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, clearly documenting 'subset' and 'keep' parameters. The description adds minimal value beyond the schema, as examples illustrate usage but do not provide additional semantic meaning. This meets the baseline for high schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Remove duplicate rows from the dataframe with comprehensive validation.' It specifies the verb ('remove'), resource ('duplicate rows'), and context ('dataframe'), but does not explicitly differentiate from sibling tools like 'filter_rows' or 'delete_row' which might also affect row selection.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage through examples (e.g., removing exact duplicates vs. based on columns), but lacks explicit guidance on when to use this tool versus alternatives like 'filter_rows' for general row selection or 'delete_row' for targeted removal. No exclusions or prerequisites are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

rename_columnsC

Rename columns in the dataframe.

Returns: Dict with rename details

Examples: # Using dictionary mapping rename_columns(ctx, {"old_col1": "new_col1", "old_col2": "new_col2"})

# Rename multiple columns
rename_columns(ctx, {
    "FirstName": "first_name",
    "LastName": "last_name",
    "EmailAddress": "email"
})
ParametersJSON Schema
NameRequiredDescriptionDefault
mappingYesDictionary mapping old column names to new names

Output Schema

ParametersJSON Schema
NameRequiredDescription
columnsYesList of final column names
renamedYesMapping of old names to new names
successNoWhether operation completed successfully

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It states the action ('Rename columns') and mentions a return type ('Dict with rename details'), but lacks critical behavioral details such as whether this modifies the dataframe in-place, if it requires specific permissions, error handling for non-existent columns, or side effects. This is a significant gap for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized and front-loaded, starting with the core purpose. The examples are helpful but could be more integrated; the structure is efficient with no wasted sentences, though it could be slightly more cohesive.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has an output schema (implied by 'Has output schema: true'), the description doesn't need to detail return values. However, as a mutation tool with no annotations and incomplete behavioral disclosure, it falls short. The description covers the basic action and parameters but misses key context like in-place modification or error handling, making it minimally adequate but with clear gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, with the parameter 'mapping' clearly documented as a dictionary mapping old to new column names. The description adds minimal value beyond this, as it restates the mapping concept in the examples without providing additional semantics like format constraints or edge cases. Baseline 3 is appropriate given the high schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb ('Rename') and resource ('columns in the dataframe'), making the purpose specific and understandable. However, it doesn't explicitly differentiate from sibling tools like 'update_column' or 'transform_column_case', which might also involve column modifications, so it doesn't reach the highest score.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives. For example, it doesn't mention if this is for bulk renaming versus single-column updates, or how it differs from tools like 'update_column' or 'transform_column_case' in the sibling list. The examples show usage but don't offer contextual advice.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

replace_in_columnA

Replace patterns in a column with replacement text.

Returns: ColumnOperationResult with replacement details

Examples: # Replace with regex replace_in_column(ctx, "name", r"Mr.", "Mister")

# Remove non-digits from phone numbers
replace_in_column(ctx, "phone", r"\D", "", regex=True)

# Simple string replacement
replace_in_column(ctx, "status", "N/A", "Unknown", regex=False)

# Replace multiple spaces with single space
replace_in_column(ctx, "description", r"\s+", " ")
ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesColumn name to apply pattern replacement in
patternYesPattern to search for (regex or literal string)
replacementYesReplacement text to use for matches
regexYesWhether to treat pattern as regex (True) or literal string (False)

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A3.9/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden. It discloses the operation returns a 'ColumnOperationResult with replacement details' and shows through examples that it performs in-place column modifications. However, it doesn't mention potential side effects like data loss, performance implications for large datasets, or whether the operation is reversible - important behavioral traits for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized with a clear purpose statement followed by practical examples. The examples are well-structured and demonstrate different use cases efficiently. However, the 'Returns:' section could be integrated more smoothly rather than as a separate statement.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given this is a mutation tool with no annotations but with a complete input schema and output schema indicated, the description provides adequate context. The examples cover common use cases, and the mention of return type helps. For a pattern replacement operation, additional context about regex capabilities or limitations would enhance completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all four parameters thoroughly. The description adds minimal value beyond the schema - it mentions 'patterns' and 'replacement text' but doesn't provide additional semantic context about parameter interactions or edge cases beyond what's in the schema descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('Replace patterns in a column with replacement text') and distinguishes it from siblings like 'strip_column', 'transform_column_case', or 'update_column' by focusing on pattern-based replacement rather than other transformations. It explicitly mentions both regex and literal string replacement, which differentiates it from simple string operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context through examples showing when to use regex vs. literal string replacement, but doesn't explicitly state when NOT to use this tool or name specific alternatives among siblings. The examples imply usage for pattern-based column transformations, but no explicit guidance on alternatives like 'update_column' or 'strip_column' is given.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

select_columnsA

Select specific columns from dataframe, removing all others.

Validates column existence and reorders by selection order. Returns selection details with before/after column counts.

ParametersJSON Schema
NameRequiredDescriptionDefault
columnsYesList of column names to select and keep

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
columns_afterYesNumber of columns after selection
columns_beforeYesNumber of columns before selection
selected_columnsYesList of selected column names

TDQS

A4/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It effectively describes key behaviors: validation of column existence, reordering by selection order, and returning details with before/after counts. This covers mutation effects (removing columns), error handling (validation), and output format, though it could mention performance implications or data integrity aspects.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is highly concise and front-loaded, with three sentences that each add value: the core action, validation/reordering details, and return information. There is no wasted text, and it efficiently communicates essential information without redundancy or fluff.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (dataframe mutation), no annotations, and the presence of an output schema (which handles return values), the description is largely complete. It covers purpose, behavior, and output context well. However, it could improve by mentioning potential errors (e.g., invalid column names) or linking to sibling tools for better integration, keeping it from a perfect score.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, with the parameter 'columns' well-documented in the schema. The description adds minimal semantics beyond the schema, only implying that columns are selected and kept in order. Since the schema already fully describes the parameter, the baseline score of 3 is appropriate, as the description does not significantly enhance parameter understanding.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('Select specific columns from dataframe, removing all others') and distinguishes it from sibling tools like 'remove_columns' (which likely removes specified columns while keeping others) and 'get_column_data' (which likely retrieves data without removing columns). It specifies both the selection and removal aspects, making the purpose unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for selecting and reordering columns while removing others, but does not explicitly state when to use this tool versus alternatives like 'remove_columns' or 'rename_columns'. It provides context about validation and reordering, but lacks explicit guidance on scenarios or prerequisites for choosing this tool over siblings.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

set_cell_valueA

Set value of specific cell with coordinate targeting.

Supports column name or index, tracks old and new values. Returns operation result with coordinates and data type.

ParametersJSON Schema
NameRequiredDescriptionDefault
row_indexYesRow index (0-based) to update cell in
columnYesColumn name or column index (0-based) to update
valueYesNew value to set in the cell (str, int, float, bool, or None)

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
data_typeYesPandas data type of the column
new_valueYesNew cell value after update
old_valueYesPrevious cell value before update
coordinatesYesCell coordinates with row index and column name

TDQS

A3.5/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It discloses that the tool 'tracks old and new values' and 'returns operation result with coordinates and data type', adding useful behavioral context beyond the basic 'set' action. However, it doesn't cover permissions, error handling, or side effects (e.g., impact on formulas or data types), leaving gaps for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized with three concise sentences that are front-loaded with the core purpose. Every sentence adds value: the first states the action, the second adds behavioral context, and the third describes the return. No wasted words, though minor formatting could improve readability.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (cell mutation), no annotations, and the presence of an output schema (which handles return values), the description is reasonably complete. It covers purpose, behavioral traits (tracking values), and return context, though it could benefit from more guidance on usage vs siblings or error scenarios.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema fully documents all three parameters. The description adds no additional parameter semantics beyond what's in the schema (e.g., no examples, format details, or constraints). This meets the baseline for high schema coverage but doesn't enhance understanding.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with a specific verb ('Set value') and resource ('specific cell'), and distinguishes it from siblings like 'get_cell_value' (read) and 'update_row' (row-level). However, it doesn't explicitly differentiate from 'update_column' or other cell-modifying tools, keeping it from a perfect score.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for cell-level updates with coordinate targeting, but doesn't explicitly state when to use this vs alternatives like 'update_row', 'update_column', or 'replace_in_column'. It provides context (coordinate targeting) but lacks clear exclusions or named alternatives.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

sort_dataA

Sort data by one or more columns with comprehensive error handling.

Provides flexible sorting capabilities with support for multiple columns and sort directions. Handles mixed data types appropriately and maintains data integrity throughout the sorting process.

Examples: # Simple single column sort sort_data(ctx, ["age"])

# Multi-column sort with different directions
sort_data(ctx, [
    {"column": "department", "ascending": True},
    {"column": "salary", "ascending": False}
])

# Using SortColumn objects for type safety
sort_data(ctx, [
    SortColumn(column="name", ascending=True),
    SortColumn(column="age", ascending=False)
])
ParametersJSON Schema
NameRequiredDescriptionDefault
columnsYesColumn specifications for sorting (strings or SortColumn objects)

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
ascendingYesSort direction for each column (True=ascending, False=descending)
sorted_byYesColumn names used for sorting
rows_processedYesNumber of rows that were sorted

TDQS

A3.6/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'comprehensive error handling,' 'flexible sorting capabilities,' and 'maintains data integrity,' which adds useful context beyond basic functionality. However, it doesn't detail specific error types, performance implications, or side effects (e.g., whether sorting is in-place or returns a new dataset), leaving gaps that lower the score to 3.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized and front-loaded, starting with a clear purpose statement. The examples are relevant but could be more concise; however, they earn their place by demonstrating usage. There's minimal waste, but slight verbosity in the examples keeps it from a perfect 5.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (sorting data), 100% schema coverage, and the presence of an output schema (implied by context signals), the description is mostly complete. It covers purpose, parameters via examples, and behavioral traits like error handling. However, it could better address edge cases or integration with sibling tools, slightly lowering it to 4.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema description coverage is 100%, so the baseline is 3. The description adds value by explaining parameter semantics through examples, showing how 'columns' can be strings or objects with 'ascending' defaults, and illustrating type safety with SortColumn. This enhances understanding beyond the schema, justifying a score of 4.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose as 'Sort data by one or more columns with comprehensive error handling,' which is a specific verb+resource combination. It distinguishes itself from siblings like 'filter_rows' or 'group_by_aggregate' by focusing on sorting rather than filtering or grouping. However, it doesn't explicitly contrast with all potential alternatives, keeping it at a 4 rather than a 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage through examples (e.g., simple vs. multi-column sorts), suggesting when to use different parameter formats. However, it lacks explicit guidance on when to choose this tool over alternatives like 'order_by' (if it existed) or other data manipulation tools, and doesn't mention prerequisites or exclusions, placing it at a 3 for implied context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

split_columnA

Split column values by delimiter.

Returns: ColumnOperationResult with split details

Examples: # Keep first part of split split_column(ctx, "full_name", " ", part_index=0)

# Keep last part
split_column(ctx, "email", "@", part_index=1)

# Expand into multiple columns
split_column(ctx, "address", ",", expand_to_columns=True)

# Expand with custom column names
split_column(ctx, "name", " ", expand_to_columns=True,
            new_columns=["first_name", "last_name"])
ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesColumn name to split values in
delimiterNoString delimiter to split on
part_indexYesWhich part to keep (0-based index, None for first part)
expand_to_columnsYesWhether to expand splits into multiple columns
new_columnsYesNames for new columns when expanding

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It describes the operation and return type ('ColumnOperationResult with split details'), but doesn't mention important behavioral aspects like whether this modifies data in-place, requires specific permissions, or has performance implications for large datasets.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is perfectly structured with a clear purpose statement, return value information, and multiple practical examples that demonstrate different usage patterns. Every sentence serves a specific purpose with zero wasted words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity, 100% schema coverage, and presence of an output schema, the description is quite complete. It explains the operation, shows multiple usage patterns, and mentions the return type. The main gap is lack of behavioral context about data modification implications.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema has 100% description coverage, so the baseline is 3. The description adds value through examples that illustrate how parameters interact (e.g., 'part_index' vs 'expand_to_columns'), but doesn't provide additional semantic context beyond what's already documented in the schema descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with a specific verb ('split') and resource ('column values'), and it distinguishes itself from siblings like 'extract_from_column' or 'transform_column_case' by focusing specifically on delimiter-based splitting operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context through examples showing when to use different parameter combinations (keeping first/last part, expanding to multiple columns), but doesn't explicitly state when NOT to use this tool or name specific alternatives among the many sibling tools available.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

strip_columnA

Strip whitespace or specified characters from column values.

Returns: ColumnOperationResult with strip details

Examples: # Remove leading/trailing whitespace strip_column(ctx, "name")

# Remove specific characters
strip_column(ctx, "phone", "()")

# Clean currency values
strip_column(ctx, "price", "$,")

# Remove quotes
strip_column(ctx, "quoted_text", "'\"")
ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesColumn name to strip characters from
charsNoCharacters to strip (None for whitespace, string for specific chars)

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A4/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden and does well by specifying the tool returns a 'ColumnOperationResult with strip details', indicating structured output. It clarifies that stripping applies to 'leading/trailing whitespace' by default and can target 'specific characters', though it doesn't cover error handling, performance, or side effects on the dataset.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with the core purpose, followed by a concise returns statement and practical examples that earn their place by demonstrating common use cases. No redundant or verbose sentences; it efficiently communicates key information in a structured format.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (2 parameters, 100% schema coverage, output schema present), the description is mostly complete. It covers purpose, output type, and usage examples, but could improve by mentioning sibling tool distinctions or potential impacts on data integrity, though the output schema reduces the need for detailed return value explanations.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description adds minimal value beyond the schema by illustrating parameter usage in examples (e.g., 'phone', '()' for chars), but doesn't explain semantics like character set handling or edge cases beyond what the schema's descriptions already provide.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('strip whitespace or specified characters') and target resource ('from column values'), distinguishing it from siblings like 'replace_in_column' or 'transform_column_case' which perform different transformations. It precisely defines the operation without being tautological.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage through examples (e.g., cleaning currency values, removing quotes) but lacks explicit guidance on when to choose this tool over alternatives like 'replace_in_column' for character substitution or 'transform_column_case' for case changes. No when-not-to-use scenarios or prerequisites are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

transform_column_caseA

Transform the case of text in a column.

Returns: ColumnOperationResult with transformation details

Examples: # Convert to uppercase transform_column_case(ctx, "code", "upper")

# Convert names to title case
transform_column_case(ctx, "name", "title")

# Convert to lowercase for comparison
transform_column_case(ctx, "email", "lower")

# Capitalize sentences
transform_column_case(ctx, "description", "capitalize")
ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesColumn name to transform text case in
transformYesCase transformation: upper, lower, title, or capitalize

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A3.9/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It discloses that the tool performs a transformation and returns a 'ColumnOperationResult', but does not detail behavioral traits such as error handling (e.g., what happens with non-text columns), permissions, or side effects. The examples add some context but leave gaps in operational transparency.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized and front-loaded, starting with the core purpose followed by return details and examples. Each example sentence earns its place by demonstrating different use cases, though the structure could be slightly more streamlined by integrating examples more cohesively.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (2 parameters, 100% schema coverage, and an output schema indicated as present), the description is mostly complete. It covers purpose, return type, and usage examples, but lacks details on error conditions or edge cases, which would be beneficial for full contextual understanding.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents both parameters fully. The description adds minimal value beyond the schema by illustrating parameter usage in examples (e.g., showing 'upper' for uppercase transformation), but does not provide additional semantic context. With 0 parameters needing extra description, a baseline of 4 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose with a specific verb ('transform') and resource ('text in a column'), distinguishing it from siblings like 'strip_column' (which removes whitespace) or 'update_column' (which modifies values more broadly). It directly addresses what the tool does without being tautological.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage through examples (e.g., 'Convert to uppercase' or 'Convert to lowercase for comparison'), but does not explicitly state when to use this tool versus alternatives like 'strip_column' for whitespace removal or 'replace_in_column' for text substitution. Guidance is contextual but lacks explicit exclusions or named alternatives.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

update_columnA

Update values in a column using various operations with discriminated unions.

Returns: ColumnOperationResult with update details

Examples: # Using discriminated union - Replace operation update_column(ctx, "status", { "type": "replace", "pattern": "N/A", "replacement": "Unknown" })

# Using discriminated union - Map operation
update_column(ctx, "code", {
    "type": "map",
    "mapping": {"A": "Alpha", "B": "Beta"}
})

# Using discriminated union - Fill operation
update_column(ctx, "score", {
    "type": "fillna",
    "value": 0
})

# Legacy format still supported
update_column(ctx, "score", {
    "operation": "fillna",
    "value": 0
})
ParametersJSON Schema
NameRequiredDescriptionDefault
columnYesColumn name to update values in
operationYesUpdate operation specification (replace, map, apply, fillna)

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationYesType of operation performed
transformNoTransform description
part_indexNoPart index for split operations
nulls_filledNoNumber of null values filled
rows_removedNoNumber of rows removed (for remove_duplicates)
rows_affectedYesNumber of rows affected by operation
values_filledNoNumber of values filled (for fill_missing_values)
updated_sampleNoSample values after operation
original_sampleNoSample values before operation
columns_affectedYesNames of columns affected

TDQS

A3.6/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It discloses that the tool returns a 'ColumnOperationResult with update details' and supports both discriminated union and legacy formats, adding useful behavioral context. However, it lacks details on permissions, side effects (e.g., data mutation scope), error handling, or rate limits, which are important for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with a clear purpose statement and return value, but the examples section is lengthy (4 code blocks). While examples are helpful, they dominate the text, making it less concise. Some sentences could be more tightly integrated to reduce bulk without losing clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (mutation with multiple operation types), the description is fairly complete: it states the purpose, return type, and provides examples. With an output schema present, it doesn't need to detail return values. However, it lacks usage guidelines and some behavioral context (e.g., error cases), leaving minor gaps for a mutation tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description adds value by explaining the 'operation' parameter uses 'discriminated unions' and provides concrete examples for 'replace', 'map', and 'fillna' operations, clarifying semantics beyond the schema's technical definitions. It also notes legacy format support, which isn't in the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Update values in a column using various operations with discriminated unions.' It specifies the verb ('update'), resource ('values in a column'), and mechanism ('various operations with discriminated unions'), distinguishing it from siblings like 'replace_in_column' (more specific) or 'transform_column_case' (different operation).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention siblings like 'replace_in_column' or 'fill_column_nulls', which might overlap in functionality, nor does it specify prerequisites, context, or exclusions for usage. The examples illustrate how to call it but not when it's appropriate.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

update_rowA

Update specific columns in row with selective updates.

Supports partial column updates with change tracking. Returns old/new values for updated columns.

ParametersJSON Schema
NameRequiredDescriptionDefault
row_indexYesRow index (0-based) to update
dataYesColumn updates as dict mapping column names to values, or JSON string

Output Schema

ParametersJSON Schema
NameRequiredDescription
successNoWhether operation completed successfully
operationNoOperation type identifier
row_indexYesIndex of updated row
new_valuesYesNew values for updated columns
old_valuesYesPrevious values for updated columns
changes_madeYesNumber of columns that were changed
columns_updatedYesNames of columns that were updated

TDQS

A3.6/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries full burden. It discloses behavioral traits: 'Supports partial column updates with change tracking' and 'Returns old/new values for updated columns.' This adds context on what the tool does (partial updates, tracking) and output behavior. However, it misses details like error handling, permissions, or side effects. The description does not contradict annotations (none provided).

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately sized and front-loaded: the first sentence states the core purpose, and subsequent sentences add key behavioral details. Every sentence earns its place with no waste. It is concise and well-structured for quick understanding.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given complexity (mutation tool with 2 parameters), no annotations, and an output schema (implied by 'Has output schema: true'), the description is fairly complete. It covers purpose, behavior (partial updates, change tracking), and output (returns old/new values). The output schema likely details return values, so the description need not explain them. However, it could improve by addressing error cases or prerequisites.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents both parameters ('row_index' and 'data') with descriptions. The description adds marginal value by implying 'data' is for column updates, but does not provide additional semantics beyond what the schema states (e.g., format details or examples). Baseline is 3 when schema does heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Update specific columns in row with selective updates.' This specifies the verb ('update'), resource ('columns in row'), and scope ('selective updates'). It distinguishes from siblings like 'set_cell_value' (single cell) and 'update_column' (entire column), though not explicitly. The purpose is specific but could be more explicit about sibling differentiation.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for partial column updates with change tracking, but does not explicitly state when to use this tool versus alternatives like 'set_cell_value' (for single cells) or 'update_column' (for entire columns). No exclusions or prerequisites are mentioned. Usage is implied from the context of selective updates, but lacks explicit guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

validate_schemaC

Validate data against a schema definition using Pandera validation framework.

This function leverages Pandera's comprehensive validation capabilities to provide robust data validation. The schema is dynamically converted to Pandera format and applied to the DataFrame for maximum validation coverage and reliability.

For more information on Pandera validation capabilities, see:

Returns: ValidateSchemaResult with validation status and detailed error information

ParametersJSON Schema
NameRequiredDescriptionDefault
schemaYesSchema definition with column validation rules

Output Schema

ParametersJSON Schema
NameRequiredDescription
validYesWhether validation passed overall
errorsYesAll validation errors found
summaryYesSummary of validation results
validation_errorsYesValidation errors grouped by column name

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden for behavioral disclosure. It mentions that the tool 'leverages Pandera's comprehensive validation capabilities' and returns 'validation status and detailed error information', but doesn't specify important behavioral aspects: whether this is a read-only operation, what happens on validation failure (exceptions vs. warnings), performance characteristics, or data size limitations. The description adds some context about Pandera framework but misses critical operational details.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is moderately concise but includes unnecessary promotional language ('comprehensive validation capabilities', 'maximum validation coverage and reliability') and external documentation links that don't help the AI agent. The core purpose is stated upfront, but the second paragraph and documentation links add bulk without operational value. The 'Returns:' section is useful but could be more integrated.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (data validation framework integration), no annotations, and the presence of an output schema, the description is minimally adequate. It identifies the framework and return type but misses important context: what data format is expected (presumably pandas DataFrame based on Pandera reference), how data is provided to the tool (not mentioned in parameters), error handling behavior, and performance considerations. The output schema existence reduces but doesn't eliminate the need for more operational context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already fully documents the single 'schema' parameter with extensive validation rule details. The description doesn't add any parameter-specific information beyond what's in the schema - it doesn't explain how to structure the schema parameter, provide examples, or clarify the relationship between the schema parameter and the data being validated. Baseline 3 is appropriate when schema does all the work.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Validate data against a schema definition using Pandera validation framework.' It specifies the verb (validate), resource (data), and framework (Pandera). However, it doesn't explicitly distinguish this from sibling tools like 'check_data_quality' or 'profile_data', which might have overlapping functionality in data validation contexts.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It mentions Pandera's capabilities but doesn't specify scenarios where this validation tool is appropriate compared to sibling tools like 'check_data_quality' or 'profile_data'. There's no mention of prerequisites, data format requirements, or when-not-to-use conditions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. 8 tool updatesv1.0.0
    • Changedadd_column1 field changed
      • addedInput schema / $defs
        Added value: +{
        +  "SecureExpression": {
        +    "description": "Unified secure mathematical expression with validation and context support.\n\nThis is the single expression type used throughout DataBeak for all mathematical\noperations. It provides safety validation, variable substitution, and optional\nmetadata for flexible usage across different scenarios.\n\nExamples of valid expressions:\n    - \"col1 + col2\"                    # Column references\n    - \"abs(col1) * 2.5\"               # Mathematical functions\n    - \"np.sqrt(col1 + col2)\"          # Numpy functions\n    - \"x * 2 + 10\"                    # Variable expressions (for apply operations)\n    - \"max(col1, 100)\"                # Element-wise operations\n\nExamples of blocked expressions:\n    - \"__import__('os').system('rm -rf /')\"  # System access\n    - \"exec('malicious_code')\"               # Code execution\n    - \"open('/etc/passwd').read()\"           # File access\n\nUsage patterns:\n    # Simple formula\n    SecureExpression(expression=\"col1 + col2\")\n\n    # Apply operation with variable\n    SecureExpression(expression=\"x * 2\", variable_name=\"x\")\n\n    # Formula with description\n    SecureExpression(expression=\"col1 + col2\", description=\"Sum of two columns\")",
        +    "properties": {
        +      "description": {
        +        "anyOf": [
        +          {
        +            "maxLength": 200,
        +            "type": "string"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Optional description of what the expression computes"
        +      },
        +      "expression": {
        +        "description": "Safe mathematical expression using column names and mathematical functions",
        +        "maxLength": 1000,
        +        "minLength": 1,
        +        "type": "string"
        +      },
        +      "variable_name": {
        +        "default": "x",
        +        "description": "Variable name used in expression for apply operations",
        +        "pattern": "^[a-zA-Z_][a-zA-Z0-9_]*$",
        +        "type": "string"
        +      }
        +    },
        +    "required": [
        +      "expression"
        +    ],
        +    "type": "object"
        +  }
        +}
    • Changedcheck_data_quality1 field changed
      • addedInput schema / $defs
        Added value: +{
        +  "CompletenessRule": {
        +    "description": "Rule for checking data completeness.",
        +    "properties": {
        +      "columns": {
        +        "anyOf": [
        +          {
        +            "items": {
        +              "type": "string"
        +            },
        +            "type": "array"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Specific columns to check (None for all columns)"
        +      },
        +      "threshold": {
        +        "default": 0.95,
        +        "description": "Minimum completeness ratio required (0.0-1.0)",
        +        "maximum": 1,
        +        "minimum": 0,
        +        "type": "number"
        +      },
        +      "type": {
        +        "const": "completeness",
        +        "default": "completeness",
        +        "description": "Rule type identifier",
        +        "type": "string"
        +      }
        +    },
        +    "type": "object"
        +  },
        +  "ConsistencyRule": {
        +    "description": "Rule for checking data consistency between columns.",
        +    "properties": {
        +      "columns": {
        +        "description": "Column pairs to check for consistency",
        +        "items": {
        +          "type": "string"
        +        },
        +        "type": "array"
        +      },
        +      "type": {
        +        "const": "consistency",
        +        "default": "consistency",
        +        "description": "Rule type identifier",
        +        "type": "string"
        +      }
        +    },
        +    "type": "object"
        +  },
        +  "DataTypesRule": {
        +    "description": "Rule for checking data type consistency.",
        +    "properties": {
        +      "type": {
        +        "const": "data_types",
        +        "default": "data_types",
        +        "description": "Rule type identifier",
        +        "type": "string"
        +      }
        +    },
        +    "type": "object"
        +  },
        +  "DuplicatesRule": {
        +    "description": "Rule for checking duplicate rows.",
        +    "properties": {
        +      "columns": {
        +        "anyOf": [
        +          {
        +            "items": {
        +              "type": "string"
        +            },
        +            "type": "array"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Columns to consider for duplicate detection (None for all columns)"
        +      },
        +      "threshold": {
        +        "default": 0.01,
        +        "description": "Maximum allowable duplicate ratio (0.0-1.0)",
        +        "maximum": 1,
        +        "minimum": 0,
        +        "type": "number"
        +      },
        +      "type": {
        +        "const": "duplicates",
        +        "default": "duplicates",
        +        "description": "Rule type identifier",
        +        "type": "string"
        +      }
        +    },
        +    "type": "object"
        +  },
        +  "OutliersRule": {
        +    "description": "Rule for checking outliers in numeric columns.",
        +    "properties": {
        +      "threshold": {
        +        "default": 0.05,
        +        "description": "Maximum allowable outlier ratio (0.0-1.0)",
        +        "maximum": 1,
        +        "minimum": 0,
        +        "type": "number"
        +      },
        +      "type": {
        +        "const": "outliers",
        +        "default": "outliers",
        +        "description": "Rule type identifier",
        +        "type": "string"
        +      }
        +    },
        +    "type": "object"
        +  },
        +  "UniquenessRule": {
        +    "description": "Rule for checking column uniqueness.",
        +    "properties": {
        +      "column": {
        +        "description": "Column name to check for uniqueness",
        +        "type": "string"
        +      },
        +      "expected_unique": {
        +        "default": true,
        +        "description": "Whether column values are expected to be unique",
        +        "type": "boolean"
        +      },
        +      "type": {
        +        "const": "uniqueness",
        +        "default": "uniqueness",
        +        "description": "Rule type identifier",
        +        "type": "string"
        +      }
        +    },
        +    "required": [
        +      "column"
        +    ],
        +    "type": "object"
        +  }
        +}
    • Changedfilter_rows1 field changed
      • addedInput schema / $defs
        Added value: +{
        +  "ComparisonOperator": {
        +    "description": "Comparison operators for filtering.",
        +    "enum": [
        +      "=",
        +      "!=",
        +      ">",
        +      "<",
        +      ">=",
        +      "<=",
        +      "contains",
        +      "not_contains",
        +      "starts_with",
        +      "ends_with",
        +      "in",
        +      "not_in",
        +      "is_null",
        +      "is_not_null"
        +    ],
        +    "type": "string"
        +  },
        +  "FilterCondition": {
        +    "description": "A single filter condition.",
        +    "properties": {
        +      "column": {
        +        "description": "Column name to filter on",
        +        "type": "string"
        +      },
        +      "operator": {
        +        "$ref": "#/$defs/ComparisonOperator",
        +        "description": "Comparison operator"
        +      },
        +      "value": {
        +        "$ref": "#/$defs/FilterValue",
        +        "default": null,
        +        "description": "Value to compare against"
        +      }
        +    },
        +    "required": [
        +      "column",
        +      "operator"
        +    ],
        +    "type": "object"
        +  },
        +  "FilterValue": {
        +    "anyOf": [
        +      {
        +        "type": "string"
        +      },
        +      {
        +        "type": "integer"
        +      },
        +      {
        +        "type": "number"
        +      },
        +      {
        +        "type": "boolean"
        +      },
        +      {
        +        "items": {
        +          "anyOf": [
        +            {
        +              "type": "string"
        +            },
        +            {
        +              "type": "integer"
        +            },
        +            {
        +              "type": "number"
        +            },
        +            {
        +              "type": "boolean"
        +            },
        +            {
        +              "type": "null"
        +            }
        +          ]
        +        },
        +        "type": "array"
        +      },
        +      {
        +        "type": "null"
        +      }
        +    ]
        +  }
        +}
    • Changedload_csv_from_content1 field changed
      • addedInput schema / $defs
        Added value: +{
        +  "AutoDetectHeader": {
        +    "description": "Auto-detect whether file has headers using pandas inference.",
        +    "properties": {
        +      "mode": {
        +        "const": "auto",
        +        "default": "auto",
        +        "type": "string"
        +      }
        +    },
        +    "type": "object"
        +  },
        +  "ExplicitHeaderRow": {
        +    "description": "Use specific row number as header.",
        +    "properties": {
        +      "mode": {
        +        "const": "row",
        +        "default": "row",
        +        "type": "string"
        +      },
        +      "row_number": {
        +        "description": "Row number to use as header (0-based)",
        +        "minimum": 0,
        +        "type": "integer"
        +      }
        +    },
        +    "required": [
        +      "row_number"
        +    ],
        +    "type": "object"
        +  },
        +  "NoHeader": {
        +    "description": "File has no headers - generate default column names (Column_0, Column_1, etc.).",
        +    "properties": {
        +      "mode": {
        +        "const": "none",
        +        "default": "none",
        +        "type": "string"
        +      }
        +    },
        +    "type": "object"
        +  }
        +}
    • Changedload_csv_from_url1 field changed
      • addedInput schema / $defs
        Added value: +{
        +  "AutoDetectHeader": {
        +    "description": "Auto-detect whether file has headers using pandas inference.",
        +    "properties": {
        +      "mode": {
        +        "const": "auto",
        +        "default": "auto",
        +        "type": "string"
        +      }
        +    },
        +    "type": "object"
        +  },
        +  "ExplicitHeaderRow": {
        +    "description": "Use specific row number as header.",
        +    "properties": {
        +      "mode": {
        +        "const": "row",
        +        "default": "row",
        +        "type": "string"
        +      },
        +      "row_number": {
        +        "description": "Row number to use as header (0-based)",
        +        "minimum": 0,
        +        "type": "integer"
        +      }
        +    },
        +    "required": [
        +      "row_number"
        +    ],
        +    "type": "object"
        +  },
        +  "NoHeader": {
        +    "description": "File has no headers - generate default column names (Column_0, Column_1, etc.).",
        +    "properties": {
        +      "mode": {
        +        "const": "none",
        +        "default": "none",
        +        "type": "string"
        +      }
        +    },
        +    "type": "object"
        +  }
        +}
    • Changedsort_data1 field changed
      • addedInput schema / $defs
        Added value: +{
        +  "SortColumn": {
        +    "description": "Column specification for sorting.",
        +    "properties": {
        +      "ascending": {
        +        "default": true,
        +        "description": "Sort in ascending order",
        +        "type": "boolean"
        +      },
        +      "column": {
        +        "description": "Column name to sort by",
        +        "type": "string"
        +      }
        +    },
        +    "required": [
        +      "column"
        +    ],
        +    "type": "object"
        +  }
        +}
    • Changedupdate_column1 field changed
      • addedInput schema / $defs
        Added value: +{
        +  "ApplyOperation": {
        +    "description": "Apply operation specification.",
        +    "properties": {
        +      "expression": {
        +        "description": "Python expression to apply",
        +        "type": "string"
        +      },
        +      "type": {
        +        "const": "apply",
        +        "default": "apply",
        +        "type": "string"
        +      }
        +    },
        +    "required": [
        +      "expression"
        +    ],
        +    "type": "object"
        +  },
        +  "FillNaOperation": {
        +    "description": "Fill NA operation specification.",
        +    "properties": {
        +      "type": {
        +        "const": "fillna",
        +        "default": "fillna",
        +        "type": "string"
        +      },
        +      "value": {
        +        "anyOf": [
        +          {
        +            "type": "string"
        +          },
        +          {
        +            "type": "integer"
        +          },
        +          {
        +            "type": "number"
        +          },
        +          {
        +            "type": "boolean"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "description": "Value to fill NaN/null with"
        +      }
        +    },
        +    "required": [
        +      "value"
        +    ],
        +    "type": "object"
        +  },
        +  "MapOperation": {
        +    "description": "Map operation specification.",
        +    "properties": {
        +      "mapping": {
        +        "additionalProperties": {
        +          "anyOf": [
        +            {
        +              "type": "string"
        +            },
        +            {
        +              "type": "integer"
        +            },
        +            {
        +              "type": "number"
        +            },
        +            {
        +              "type": "boolean"
        +            },
        +            {
        +              "type": "null"
        +            }
        +          ]
        +        },
        +        "description": "Value mapping dictionary",
        +        "type": "object"
        +      },
        +      "type": {
        +        "const": "map",
        +        "default": "map",
        +        "type": "string"
        +      }
        +    },
        +    "required": [
        +      "mapping"
        +    ],
        +    "type": "object"
        +  },
        +  "ReplaceOperation": {
        +    "description": "Replace operation specification.",
        +    "properties": {
        +      "pattern": {
        +        "description": "Pattern to search for",
        +        "type": "string"
        +      },
        +      "replacement": {
        +        "description": "Replacement string",
        +        "type": "string"
        +      },
        +      "type": {
        +        "const": "replace",
        +        "default": "replace",
        +        "type": "string"
        +      }
        +    },
        +    "required": [
        +      "pattern",
        +      "replacement"
        +    ],
        +    "type": "object"
        +  },
        +  "UpdateColumnRequest": {
        +    "description": "Request parameters for column update operations.",
        +    "properties": {
        +      "operation": {
        +        "description": "Type of update operation",
        +        "enum": [
        +          "replace",
        +          "map",
        +          "apply",
        +          "fillna"
        +        ],
        +        "type": "string"
        +      },
        +      "pattern": {
        +        "anyOf": [
        +          {
        +            "type": "string"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Pattern for replace operation"
        +      },
        +      "replacement": {
        +        "anyOf": [
        +          {
        +            "type": "string"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Replacement for replace operation"
        +      },
        +      "value": {
        +        "anyOf": [
        +          {},
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Value for the operation (depends on operation type)"
        +      }
        +    },
        +    "required": [
        +      "operation"
        +    ],
        +    "type": "object"
        +  }
        +}
    • Changedvalidate_schema1 field changed
      • addedInput schema / $defs
        Added value: +{
        +  "ColumnValidationRules": {
        +    "description": "Column validation rules based on Pandera Field and Check validation capabilities.\n\nThis class implements comprehensive column validation using rules compatible with\nPandera's validation system. It leverages Pandera's robust validation framework\nfor maximum data quality assurance.\n\nFor complete documentation on validation behaviors and options, see:\n- Pandera Field API: https://pandera.readthedocs.io/en/stable/reference/generated/pandera.api.pandas.model_components.Field.html\n- Pandera Check API: https://pandera.readthedocs.io/en/stable/reference/generated/pandera.api.checks.Check.html\n- Pandas validation guide: https://pandas.pydata.org/docs/user_guide/basics.html#validation\n\nThe validation rules are organized by category to match Pandera's Check API for\nmaximum compatibility and comprehensive data validation coverage.",
        +    "properties": {
        +      "coerce": {
        +        "default": false,
        +        "description": "Attempt automatic type conversion (Pandera coerce parameter)",
        +        "type": "boolean"
        +      },
        +      "equal_to": {
        +        "anyOf": [
        +          {
        +            "type": "integer"
        +          },
        +          {
        +            "type": "number"
        +          },
        +          {
        +            "type": "string"
        +          },
        +          {
        +            "type": "boolean"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "All values must equal this exact value (Pandera Check.equal_to)"
        +      },
        +      "greater_than": {
        +        "anyOf": [
        +          {
        +            "type": "integer"
        +          },
        +          {
        +            "type": "number"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "All numeric values must be strictly greater than this (Pandera Check.greater_than)"
        +      },
        +      "greater_than_or_equal_to": {
        +        "anyOf": [
        +          {
        +            "type": "integer"
        +          },
        +          {
        +            "type": "number"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "All numeric values must be >= this value (Pandera Check.greater_than_or_equal_to)"
        +      },
        +      "ignore_na": {
        +        "default": true,
        +        "description": "Ignore null values during validation checks (Pandera ignore_na parameter)",
        +        "type": "boolean"
        +      },
        +      "in_range": {
        +        "anyOf": [
        +          {
        +            "additionalProperties": {
        +              "anyOf": [
        +                {
        +                  "type": "integer"
        +                },
        +                {
        +                  "type": "number"
        +                }
        +              ]
        +            },
        +            "type": "object"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Numeric range constraints as {'min': num, 'max': num} (Pandera Check.in_range)"
        +      },
        +      "isin": {
        +        "anyOf": [
        +          {
        +            "items": {
        +              "anyOf": [
        +                {
        +                  "type": "string"
        +                },
        +                {
        +                  "type": "integer"
        +                },
        +                {
        +                  "type": "number"
        +                },
        +                {
        +                  "type": "boolean"
        +                }
        +              ]
        +            },
        +            "type": "array"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Values must be in this list of allowed values (Pandera Check.isin)"
        +      },
        +      "less_than": {
        +        "anyOf": [
        +          {
        +            "type": "integer"
        +          },
        +          {
        +            "type": "number"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "All numeric values must be strictly less than this (Pandera Check.less_than)"
        +      },
        +      "less_than_or_equal_to": {
        +        "anyOf": [
        +          {
        +            "type": "integer"
        +          },
        +          {
        +            "type": "number"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "All numeric values must be <= this value (Pandera Check.less_than_or_equal_to)"
        +      },
        +      "not_equal_to": {
        +        "anyOf": [
        +          {
        +            "type": "integer"
        +          },
        +          {
        +            "type": "number"
        +          },
        +          {
        +            "type": "string"
        +          },
        +          {
        +            "type": "boolean"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "No values may equal this value (Pandera Check.not_equal_to)"
        +      },
        +      "notin": {
        +        "anyOf": [
        +          {
        +            "items": {
        +              "anyOf": [
        +                {
        +                  "type": "string"
        +                },
        +                {
        +                  "type": "integer"
        +                },
        +                {
        +                  "type": "number"
        +                },
        +                {
        +                  "type": "boolean"
        +                }
        +              ]
        +            },
        +            "type": "array"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Values must not be in this list of forbidden values (Pandera Check.notin)"
        +      },
        +      "nullable": {
        +        "default": true,
        +        "description": "Allow null/NaN values in the column (Pandera nullable parameter)",
        +        "type": "boolean"
        +      },
        +      "raise_warning": {
        +        "default": false,
        +        "description": "Raise warning instead of exception on validation failure (Pandera raise_warning parameter)",
        +        "type": "boolean"
        +      },
        +      "str_contains": {
        +        "anyOf": [
        +          {
        +            "type": "string"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Strings must contain this substring (Pandera Check.str_contains)"
        +      },
        +      "str_endswith": {
        +        "anyOf": [
        +          {
        +            "type": "string"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Strings must end with this suffix (Pandera Check.str_endswith)"
        +      },
        +      "str_length": {
        +        "anyOf": [
        +          {
        +            "additionalProperties": {
        +              "type": "integer"
        +            },
        +            "type": "object"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "String length constraints as {'min': int, 'max': int} (Pandera Check.str_length)"
        +      },
        +      "str_matches": {
        +        "anyOf": [
        +          {
        +            "type": "string"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Strings must match this regex pattern (Pandera Check.str_matches)"
        +      },
        +      "str_startswith": {
        +        "anyOf": [
        +          {
        +            "type": "string"
        +          },
        +          {
        +            "type": "null"
        +          }
        +        ],
        +        "default": null,
        +        "description": "Strings must start with this prefix (Pandera Check.str_startswith)"
        +      },
        +      "unique": {
        +        "default": false,
        +        "description": "Ensure all column values are unique (Pandera unique parameter)",
        +        "type": "boolean"
        +      }
        +    },
        +    "type": "object"
        +  },
        +  "ValidationSchema": {
        +    "additionalProperties": {
        +      "$ref": "#/$defs/ColumnValidationRules"
        +    },
        +    "description": "Schema definition for data validation.",
        +    "type": "object"
        +  }
        +}
  2. 41 tool updates
    • First observedadd_column
    • First observedchange_column_type
    • First observedcheck_data_quality
    • First observeddelete_row
    • First observeddetect_outliers
    • First observedextract_from_column
    • First observedfill_column_nulls
    • First observedfill_missing_values
    • First observedfilter_rows
    • First observedfind_anomalies
    • First observedfind_cells_with_value
    • First observedget_cell_value
    • First observedget_column_data
    • First observedget_column_statistics
    • First observedget_correlation_matrix
    • First observedget_data_summary
    • First observedget_row_data
    • First observedget_server_info
    • First observedget_session_info
    • First observedget_statistics
    • First observedget_value_counts
    • First observedgroup_by_aggregate
    • First observedhealth_check
    • First observedinsert_row
    • First observedinspect_data_around
    • First observedload_csv_from_content
    • First observedload_csv_from_url
    • First observedprofile_data
    • First observedremove_columns
    • First observedremove_duplicates
    • First observedrename_columns
    • First observedreplace_in_column
    • First observedselect_columns
    • First observedset_cell_value
    • First observedsort_data
    • First observedsplit_column
    • First observedstrip_column
    • First observedtransform_column_case
    • First observedupdate_column
    • First observedupdate_row
    • First observedvalidate_schema

TDQS

B3.4/5.0
Disambiguation3/5

The tools have clear individual purposes, but there is significant overlap in functionality that could confuse an agent. For example, 'fill_column_nulls' and 'fill_missing_values' both handle missing data, and 'detect_outliers' and 'find_anomalies' appear similar, though descriptions hint at different focuses. Many column-specific operations like 'add_column', 'change_column_type', and 'update_column' are distinct but could be misselected due to the sheer number of similar-sounding tools.

Naming Consistency5/5

All tool names follow a consistent snake_case pattern with clear verb_noun structures, such as 'add_column', 'filter_rows', and 'get_statistics'. The naming is highly predictable and readable, making it easy for an agent to understand the action and target at a glance. There are no deviations or mixed conventions across the 41 tools.

Tool Count2/5

With 41 tools, the count is excessive for a data manipulation server, leading to potential confusion and inefficiency. While the domain is broad, many tools could be consolidated (e.g., multiple null-handling or column-transformation tools). This large number feels heavy and unwieldy, exceeding the typical well-scoped range of 3-15 tools for clear agent interaction.

Completeness5/5

The tool set provides comprehensive coverage for data manipulation and analysis, including CRUD operations (e.g., 'add_column', 'delete_row'), transformations, quality checks, statistical analysis, and data loading. There are no obvious gaps; tools support the full lifecycle from ingestion to profiling, with robust features for filtering, grouping, and validation, ensuring agents can handle complex workflows without dead ends.

Maintenance

ActivityInactive
ResponsivenessSyncing

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