MCP Git Server

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

No annotations are provided, so the description carries full burden. It mentions 'comprehensive' but doesn't disclose what that entails (e.g., includes comments, commits, or metadata), rate limits, authentication needs, or error handling. For a tool with 5 parameters and no output schema, this leaves critical behavioral traits unspecified.

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?

The description is a single, efficient sentence with no wasted words. It's front-loaded and appropriately sized for the tool's complexity, earning full marks for conciseness.

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 5 parameters, 0% schema coverage, no annotations, no output schema, and multiple sibling tools, the description is incomplete. It doesn't explain return values, usage context, or how parameters interact, making it inadequate for an agent to reliably invoke this tool without additional assumptions.

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 0%, so the description must compensate. It implies 'comprehensive' details, which loosely relates to include_files and include_reviews parameters, but doesn't explain their effects (e.g., what files or reviews are included) or the meaning of repo_owner, repo_name, and pr_number beyond obvious names. Baseline 3 is appropriate as it adds minimal context without fully addressing the coverage gap.

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 'Get comprehensive PR details' states the action (get) and resource (PR details) but is vague about scope. It doesn't specify what 'comprehensive' includes or differentiate from sibling tools like github_get_pr_status, github_get_pr_checks, or github_get_pr_files, which suggests overlapping functionality without clear boundaries.

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?

No guidance is provided on when to use this tool versus alternatives. With siblings like github_get_pr_status and github_get_pr_files, the description doesn't clarify if this tool aggregates those details or serves a distinct purpose, leaving the agent to guess based on parameter names alone.

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