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matthiaskloft

evidence-ledger-mcp

get_record

Retrieve a single record by ID from a specified JSON Lines evidence ledger path.

Instructions

Return one record by its id.

Input Schema

NameRequiredDescriptionDefault
idYes
pathYes

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

C2.9/5.0
Behavior2/5

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

With no annotations, the description carries the full behavioral burden, but it only states that a record is returned. It does not disclose what happens if the record is missing, whether permissions are required, or any side effects, though 'Return' implies a read 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 boilerplate. It is structurally clean, though extremely terse.

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?

The output schema covers return values, so the description need not explain them. But with two required parameters at 0% schema coverage and no annotations, the description is incomplete: it omits the meaning of 'path' and gives no guidance on selecting this tool over find_records.

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

Parameters2/5

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

Schema description coverage is 0%, and there are two required parameters. The description explains the 'id' parameter as the record identifier, but it leaves the required 'path' parameter completely undocumented.

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 gives a specific verb and resource: 'Return one record by its id.' This clearly identifies a single-record lookup and implicitly distinguishes it from the plural search sibling find_records, though it does not name that sibling explicitly.

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?

Usage is implied by 'by its id' — an agent can infer this is for direct lookup when an id is known. However, it does not explicitly compare this tool with find_records or state when not to use it.

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