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jigneshsuvariya

Codebase Knowledge Graph MCP Server

add_observations

Add qualitative observations to existing entities in a codebase knowledge graph, capturing design decisions, change rationale, and other insights.

Instructions

Add observations to existing entities.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
observationsInputYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
contentYes
Behavior2/5

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

No annotations exist, and the description does not disclose side effects (e.g., whether observations are appended or overwritten), error conditions, or authorization requirements. The simple statement 'Add observations' lacks behavioral depth.

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 sentence with no unnecessary words. It is appropriately front-loaded and efficient.

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 tool has a complex input schema with nested objects, but the description omits key details like return value (output schema exists) and behavior for missing entities. Given sibling diversity, more context is needed for safe usage.

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?

The schema has a 0% description coverage according to context, so the description must compensate. However, it only says 'Add observations to existing entities'—nothing about the required 'entityName' or the 'observationsToAdd' array structure. This adds minimal meaning beyond the tool name.

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 action (add) and resource (observations to existing entities). It is specific and distinguishes from sibling tools like 'delete_observations' 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 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, prerequisites (e.g., entity must exist), or exclusions. The description is purely functional without strategic context.

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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