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ainative-memory-mcp

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ainative-memory-mcp

Enhanced MCP knowledge graph memory server with cloud persistence and semantic search. Drop-in replacement for @modelcontextprotocol/server-memory.

Why this instead of server-memory?

Feature

server-memory

ainative-memory-mcp

Storage

Local JSONL file

ZeroDB cloud

Persistence

Lost on machine wipe

Survives forever

Cross-device

No

Yes (same API key = same graph)

Semantic search

No (text match only)

Yes (vector similarity)

Setup

Manual file path

Auto-provisions on first run

Sharing

Copy files around

Share API key

Related MCP server: RAG Memory MCP

Quick Start

Claude Desktop / Claude Code

{
  "mcpServers": {
    "memory": {
      "command": "npx",
      "args": ["-y", "ainative-memory-mcp"],
      "env": {
        "ZERODB_API_KEY": "ak_your_key"
      }
    }
  }
}

No API key? Just omit it — a free ZeroDB instance is auto-provisioned on first run.

Cursor / Windsurf / VS Code

Same config in your .mcp.json:

{
  "mcpServers": {
    "memory": {
      "command": "npx",
      "args": ["-y", "ainative-memory-mcp"],
      "env": {
        "ZERODB_API_KEY": "ak_your_key"
      }
    }
  }
}

Get an API Key

npx zerodb-cli init

Or sign up at ainative.studio.

Tools (10)

All 9 original server-memory tools plus semantic search:

Original Tools

Tool

Description

create_entities

Create new entities with name, type, and observations

create_relations

Create directed relations between entities

add_observations

Add observations to existing entities

delete_entities

Delete entities and their cascading relations

delete_observations

Remove specific observations from entities

delete_relations

Delete specific relations

read_graph

Read the entire knowledge graph

search_nodes

Search by text match (name, type, observations)

open_nodes

Fetch specific entities by name with their relations

New Tool

Tool

Description

search_nodes_semantic

Vector similarity search — find entities by meaning, not just exact text

Semantic Search Example

The original search_nodes only finds exact text matches. search_nodes_semantic understands meaning:

search_nodes("ML frameworks")        -> might find nothing
search_nodes_semantic("ML frameworks") -> finds "PyTorch", "TensorFlow", "JAX"

Environment Variables

Variable

Required

Description

ZERODB_API_KEY

No*

ZeroDB API key (auto-provisions if missing)

ZERODB_PROJECT_ID

No

ZeroDB project ID

ZERODB_API_URL

No

API URL (default: https://api.ainative.studio)

*If no credentials are provided, a free instance is automatically provisioned on first run.

Auto-Provisioning

On first run without credentials:

  1. A free ZeroDB instance is provisioned automatically

  2. Credentials are saved to .mcp.json and .env in your project

  3. A claim URL is printed so you can take ownership of the instance

  4. Everything works immediately — no signup required

How It Works

Instead of writing to a local memory.jsonl file, this server:

  1. Entities are stored as rows in a ZeroDB NoSQL table (kg_entities)

  2. Relations are stored in a separate table (kg_relations)

  3. Vector embeddings are automatically generated for each entity via ZeroMemory, enabling semantic search

  4. All data persists in the cloud and is accessible from any device with the same API key

Migration from server-memory

  1. Replace @modelcontextprotocol/server-memory with ainative-memory-mcp in your MCP config

  2. Add ZERODB_API_KEY to your env (or let it auto-provision)

  3. Re-create your entities (one-time migration — your old JSONL data stays on disk)

License

MIT


Powered by ZeroDB + AINative

This package is part of the AINative ecosystem — the AI-native developer platform.

Why ZeroDB?

Feature

ZeroDB

Others

Vector search

Built-in, free embeddings

Separate service (Pinecone, Qdrant)

Agent memory

Cognitive memory with decay + reflection

DIY or Mem0 ($$$)

File storage

S3-compatible, included

Separate S3 bucket

NoSQL tables

Instant, schema-free

MongoDB Atlas, DynamoDB

PostgreSQL

Managed, pgvector pre-installed

Neon, Supabase ($$$)

Serverless functions

DB-event triggered

Firebase/Supabase Edge

Pricing

Free tier, no credit card

Pay-per-query from day 1

Get Started Free

npx zerodb-cli init    # Auto-configures your IDE

Or sign up at ainative.studio — free tier, no credit card required.

View all ZeroDB packages →


Zero-Config Auto-Provisioning

No account needed to start. On first run, this package automatically:

  1. Provisions a free ZeroDB instance (~800ms)

  2. Saves credentials locally (.env, .mcp.json)

  3. Prints a claim link in your terminal

The 72-Hour Window

Your auto-provisioned instance is free for 72 hours. To keep your data permanently, visit the claim URL printed in your terminal.

For AI Agents

If a coding agent (Claude Code, Cursor, Windsurf) installs this package:

  • Auto-provisions without human intervention

  • The claim URL appears in agent output — visit it to take ownership

  • .claude/CLAUDE.md instructs agents to surface the claim link to you

  • Check .env or ~/.ainative/config.json for your project ID if you miss it

Available Tools

10 tools
add_observationsB

Add new observations to existing entities in the knowledge graph.

ParametersJSON Schema
NameRequiredDescriptionDefault
observationsYesArray of observations to add

TDQS

B3.1/5.0
Behavior2/5

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

The tool modifies the knowledge graph with no annotations to provide safety cues. The description does not disclose potential side effects, failure modes (e.g., missing entity), or any behavioral nuances beyond the basic write 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 a single, front-loaded sentence with no wasted words. It is appropriately sized for a straightforward tool, though it could be slightly more informative without losing conciseness.

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

Completeness2/5

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

Given the lack of annotations and output schema, the description is incomplete. It does not explain behavior for edge cases (e.g., non-existent entity, duplicate observations), return values, or any guarantees. More context is needed for a mutation tool.

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 coverage is 100%, so the description adds no extra meaning beyond the schema. Baseline score of 3 is appropriate as the description is not misleading but offers no additional semantic depth.

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 action (add), resource (observations), and context (existing entities in the knowledge graph). It effectively distinguishes from siblings like create_entities and delete_observations.

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 explicit guidance on when to use vs alternatives. The phrase 'to existing entities' implies a prerequisite that entities must exist, but no further context or exclusion is provided.

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

create_entitiesA

Create multiple new entities in the knowledge graph. Entities are the fundamental nodes with a name, type, and list of observations. Stored in ZeroDB cloud — persists across sessions and devices.

ParametersJSON Schema
NameRequiredDescriptionDefault
entitiesYesArray of entities to create

TDQS

A3.6/5.0
Behavior3/5

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

No annotations available; description states entities are stored persistently but doesn't disclose potential side effects like overwriting or idempotency.

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?

Two sentences, no wasted words. Front-loaded with action, then context. Efficient.

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?

Lacks details on return values or error states. For a creation tool, this is acceptable but not complete; output schema is absent.

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?

Input schema has 100% description coverage; the description largely repeats what's in the schema without adding meaningful new parameter semantics.

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?

Description clearly states the verb 'Create' and the resource 'multiple new entities in the knowledge graph', and distinguishes from sibling tools like add_observations and create_relations.

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?

No explicit when-to-use or when-not-to-use guidance. The description only implies usage for creating fundamental nodes, but doesn't compare with alternatives.

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

create_relationsA

Create multiple new relations between entities in the knowledge graph. Relations should be in active voice.

ParametersJSON Schema
NameRequiredDescriptionDefault
relationsYesArray of relations to create

TDQS

A3.8/5.0
Behavior2/5

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

With no annotations, the description carries the full burden. It implies a write operation but does not disclose side effects (e.g., whether existing relations are replaced, if duplicates are allowed, or if entities must exist). The description is minimal on 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 extremely concise: two sentences with no wasted words. The first sentence front-loads the purpose, and the second provides a useful guideline. Every sentence earns its place.

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?

For a simple creation tool with a single parameter and no output schema, the description is adequate. It explains what the tool does and gives a quality guideline. However, it lacks information on error handling or preconditions, which would improve completeness.

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 covers all parameters with descriptions (100% coverage). The description adds semantic value by specifying that relations should be in active voice, which provides a naming convention for the relationType field. This improves parameter understanding beyond 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 action ('Create'), the resource ('relations between entities in the knowledge graph'), and that it handles 'multiple new relations'. It effectively distinguishes from sibling tools like delete_relations and create_entities.

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 a quality guideline ('Relations should be in active voice') but lacks explicit guidance on when to use this tool versus alternatives, such as when to prefer it over batch creation or handling duplicates. 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.

delete_entitiesA

Delete multiple entities and their associated relations from the knowledge graph.

ParametersJSON Schema
NameRequiredDescriptionDefault
entityNamesYesAn array of entity names to delete

TDQS

A3.8/5.0
Behavior4/5

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

Discloses that relations associated with entities are also deleted, which is a critical side effect. No annotations provided, so description carries full burden. Could mention reversibility or permissions, but the core behavior is clear.

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?

Single sentence, no redundancy, directly conveys the tool's function. Every word contributes to 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?

One-parameter tool with no output schema. Description adequately explains input and effect. Could mention return type (e.g., success confirmation), but overall sufficient for a delete operation.

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 coverage is 100% with one parameter documented. Description does not add semantic value beyond the schema, which already describes 'entityNames' as an array of strings. Baseline score of 3 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?

Clearly states 'Delete multiple entities and their associated relations from the knowledge graph.' Identifies action (delete), resource (entities and relations), and scope. Distinguishes from sibling tools like delete_observations and delete_relations.

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 on when to use this tool vs alternatives. Does not explain that it cascades to relations, unlike delete_relations which only removes relations. Missing context for selection among siblings.

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

delete_observationsB

Delete specific observations from entities in the knowledge graph.

ParametersJSON Schema
NameRequiredDescriptionDefault
deletionsYesArray of deletions

TDQS

B3.4/5.0
Behavior2/5

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

No annotations are provided, so the description must cover behavioral traits. It indicates mutation ('Delete') but lacks details on reversibility, error behavior, or permissions. Minimal disclosure beyond the action itself.

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?

Single sentence, no wasted words. However, it lacks structure (e.g., no bullet points or separation of concerns). Still appropriately sized for a simple tool.

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?

Tool complexity is low (1 param, no output schema), and the description covers the core action. However, it lacks behavioral context (e.g., atomicity, error handling) that would fully inform an AI agent, given 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?

Schema coverage is 100%, so the schema already documents parameters well. The description adds no extra meaning or context beyond repeating parameter names (e.g., 'Array of deletions'). Meets baseline but no added value.

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 action (delete), resource (observations), and scope (from entities in knowledge graph). It effectively distinguishes from sibling tools like delete_entities and delete_relations.

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?

No explicit guidance on when to use versus alternatives. The description implies deletion, but does not specify prerequisites, when not to use, or compare with other tools like add_observations.

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

delete_relationsB

Delete multiple relations from the knowledge graph.

ParametersJSON Schema
NameRequiredDescriptionDefault
relationsYesArray of relations to delete

TDQS

B3.1/5.0
Behavior2/5

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

With no annotations, the description carries the burden of behavioral disclosure, but it only says 'Delete', omitting important details like idempotency, error handling for non-existent relations, or successful deletion indication.

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 a single sentence, efficient and front-loaded, but could include more critical behavioral details without sacrificing brevity.

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

Completeness2/5

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

For a simple delete tool with one parameter and no output schema, the description fails to address typical use concerns like error states or post-deletion verification, leaving the agent with 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 coverage is 100% with property descriptions; the description adds no extra meaning beyond the schema, so baseline 3 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 action 'Delete' and the resource 'multiple relations from the knowledge graph', distinguishing it from sibling tools like delete_entities and delete_observations.

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 on when to use this tool versus alternatives (e.g., when to use delete_relations vs. create_relations or other delete tools) or prerequisites like relation existence.

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

open_nodesB

Open specific nodes in the knowledge graph by their names.

ParametersJSON Schema
NameRequiredDescriptionDefault
namesYesAn array of entity names to retrieve

TDQS

B3.3/5.0
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. 'Open' is vague—does it retrieve details or perform mutations? Lack of behavioral disclosure beyond the basic action.

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?

Single succinct sentence, no redundancy, front-loaded with key information.

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?

With no output schema and no annotations, the description leaves ambiguity about return values and behavior for missing names. Adequate for a simple tool but not fully complete.

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 coverage is 100%, so baseline is 3. The description adds minimal value over the parameter description ('retrieve'), only clarifying the action ('open') and scope ('specific').

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 uses a specific verb ('Open') and resource ('nodes in the knowledge graph') with clear method ('by their names'). It distinguishes from sibling tools like 'read_graph' or 'search_nodes'.

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 on when to use this tool versus alternatives. No exclusions or usage context provided.

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

read_graphA

Read the entire knowledge graph from ZeroDB cloud storage.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

A3.7/5.0
Behavior3/5

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

The description explicitly states this is a read operation, implying non-destructive behavior. However, with no annotations and no output schema, it fails to disclose key traits such as return format, potential size limits, or performance implications.

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 a single, clear sentence with no redundant words. Every part is essential, fitting the tool's simplicity.

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 simplicity (no parameters, no output schema), the description provides the core purpose. However, it lacks context on operational impact (e.g., reading entire graph may be slow or large), which could be critical for an agent to decide wisely among siblings.

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?

There are no parameters, achieving 100% schema coverage trivially. The description adds no parameter info, but according to guidelines, zero parameters baseline is 4. No value beyond schema is needed.

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 uses a specific verb ('Read') and resource ('entire knowledge graph'), clearly distinguishing it from sibling tools that create, delete, or search parts of the graph. This leaves no ambiguity about the tool's function.

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 like search_nodes or open_nodes. The description omits any mention of potential costs or trade-offs (e.g., reading the entire graph may be expensive), leaving the agent without context for appropriate invocation.

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

search_nodesA

Search for nodes in the knowledge graph based on a text query. Matches against entity names, types, and observation content (case-insensitive substring match).

ParametersJSON Schema
NameRequiredDescriptionDefault
queryYesThe search query to match against entity names, types, and observation content

TDQS

A4.4/5.0
Behavior4/5

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 matching is case-insensitive substring across specific fields (names, types, observation content). This gives good behavioral insight, though it does not explicitly state that the operation is read-only.

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 concise with two sentences. The first sentence clearly states the action and resource, and the second adds matching criteria. No extraneous content.

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 (one parameter, many siblings) and lack of output schema, the description is fairly complete. It covers purpose, matching behavior, and implicitly contrasts with search_nodes_semantic. Minor gap: it does not describe the return format, but this is acceptable given no 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?

Schema description coverage is 100%, establishing a baseline of 3. The description adds significant value by specifying that the query matches against entity names, types, and observation content using case-insensitive substring match, details beyond the schema's parameter description.

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 searches for nodes in the knowledge graph using a text query, matching against entity names, types, and observation content. It distinguishes from the sibling search_nodes_semantic by specifying case-insensitive substring match, implying the sibling uses different semantics.

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 on when to use the tool (text-based substring matching) and implicitly distinguishes from the semantic search sibling. However, it does not explicitly state when not to use it or list alternative tools beyond the implied contrast.

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

search_nodes_semanticA

Search for nodes in the knowledge graph using semantic vector similarity. Unlike search_nodes which does exact text matching, this finds entities by meaning — e.g., searching "machine learning frameworks" would find entities about "PyTorch" or "TensorFlow" even without those exact words.

ParametersJSON Schema
NameRequiredDescriptionDefault
queryYesNatural language query to search by meaning
limitNoMaximum number of results (default: 10)

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 the full burden for behavioral transparency. It discloses that the tool uses semantic vector similarity and can find entities without exact keyword matches. However, it does not mention any potential limitations (e.g., performance, privacy, or handling of ambiguous queries) or the nature of results beyond identification.

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 two sentences long, no wasted words. It front-loads the core purpose, then provides a critical comparison and example. Every sentence earns its place.

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 only two simple parameters and no nested objects or output schema, the description is almost complete. It explains the unique functionality. However, since there is no output schema, the description could have briefly mentioned what the return value contains (e.g., list of nodes with IDs and names). Still, it's sufficient for a straightforward 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 coverage is 100% with both parameters described. The description adds value beyond the schema by explaining that the 'query' parameter expects a natural language query and illustrating with an example. For 'limit', it repeats the default but the schema already has that. Overall, adds moderate extra meaning.

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 performs semantic vector similarity search in the knowledge graph, uses a strong verb-resource pair, and explicitly distinguishes from the sibling tool search_nodes by contrasting exact text matching vs meaning-based search. An example further clarifies the purpose.

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 states when to use this tool versus the alternative search_nodes: 'Unlike search_nodes which does exact text matching, this finds entities by meaning.' This direct comparison provides clear usage guidance and a concrete example scenario.

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. 10 tool updatesv1.0.0
    • First observedadd_observations
    • First observedcreate_entities
    • First observedcreate_relations
    • First observeddelete_entities
    • First observeddelete_observations
    • First observeddelete_relations
    • First observedopen_nodes
    • First observedread_graph
    • First observedsearch_nodes
    • First observedsearch_nodes_semantic

TDQS

A3.9/5.0
Disambiguation5/5

Each tool has a distinct purpose: creating entities, relations, or observations; deleting them; searching via text or semantic similarity; opening nodes; and reading the entire graph. No overlaps.

Naming Consistency5/5

All tool names follow a consistent verb_noun pattern (e.g., add_observations, create_entities, delete_relations, search_nodes). No mixing of conventions.

Tool Count5/5

10 tools is well-scoped for a knowledge graph agent, covering CRUD and search operations without being overwhelming or sparse.

Completeness4/5

The set covers create, read, delete, and search operations, but lacks explicit update tools for entities and relations (only observations can be added/deleted). Minor gap.

Maintenance

ActivitySlowing
ResponsivenessNo issues

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