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Glama

MCP Observatory: one read only walk over every https endpoint in the official registry

mcp_observatory_method

How the walk was run, what we got wrong and corrected, and the four rules the report holds itself to.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. First observed

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 disclosing behavior. It does not say whether the tool is read-only, what it returns, or whether it has side effects. The mention of mistakes and corrections adds content-level transparency but not 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 a single compact sentence with no redundancy. It front-loads the main idea and lists three substantive aspects, though the phrasing is somewhat elliptical and could be clearer about the tool's action.

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?

For a zero-parameter informational tool the description is serviceable: it tells the user what content the method covers. However, it omits what the tool returns and when to call it, and with no output schema or annotations the agent receives no additional context to compensate.

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 zero parameters and schema coverage is 100%, so the baseline of 4 applies. The description does not need to explain parameters because there are none.

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 names the subject matter clearly enough: it explains how the walk was run, what was corrected, and the four rules. However, it lacks a verb and never states what the tool actually does—whether it returns, displays, or reports this information. The purpose is inferred rather than explicit.

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 siblings like mcp_observatory_summary, mcp_observatory_state, or mcp_observatory_disclosure_guide. An agent must guess from the tool name and context when this tool is the right choice.

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

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TDQS

A3.8/5.0
Disambiguation5/5

Each tool covers a clearly separate concern: aggregate counts, per-address records, live probing, methodology, measurement metadata, and disclosure field names. The only mild overlap (counts in summary vs disclosure_guide) is disambiguated by their descriptions.

Naming Consistency4/5

All tools share the mcp_observatory_ prefix and snake_case, but the suffixes are mostly nouns (state, summary, method, lookup, disclosure_guide) with one verb-like exception (measure_now). This is a minor deviation rather than a chaotic mix.

Tool Count5/5

Six tools is well-scoped for a read-only observatory server. Each tool adds a distinct capability and none feel redundant or padding.

Completeness4/5

The surface covers the main tasks: querying recorded results, running a live probe, understanding methodology and limitations, and getting aggregate counts. The notable gap is the explicit absence of any tool listing addresses, but that can be worked around by obtaining addresses from the official registry.