Gitopia MCP Server

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

With no annotations provided, the description carries the full burden of disclosing behavior. It successfully discloses the return structure ('JSON array of commit objects with id, title, author...') and default parameter values, which compensates for the missing output schema. However, it omits safety profile (read-only vs. destructive) and error handling behavior.

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

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

Extremely efficient: front-loaded purpose clause, followed by return value description, parameter requirements, and cross-references. Every sentence earns its place with zero redundancy.

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

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

Given the absence of an output schema, the description adequately describes the return structure. It covers all four parameters. Minor gap: no mention of error conditions (e.g., repository not found) or pagination behavior beyond the limit parameter.

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

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 organizes parameters by required vs. optional status but does not add semantic meaning beyond the schema (e.g., explaining that 'owner' identifies the namespace or describing the format constraints not already covered).

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

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

The description clearly states the tool 'review[s] commit history for a repository branch' — a specific verb ('review'/'list') plus resource ('commit history') that distinguishes it from siblings like list_branches (which lists branches) or get_repo (which retrieves repository metadata).

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

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

Provides explicit when-to-use ('Use this when you need to review commit history') and references siblings ('See also: list_branches, get_repo') to guide selection. Lacks explicit 'when not to use' exclusions, so it falls short of a 5.

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