ossinsight-mcp

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 behavioral disclosure. It states the tool lists data but doesn't describe output format (e.g., list of countries with counts), pagination, rate limits, authentication needs, or whether it's a read-only operation. For a tool with 5 parameters and no annotations, this is a significant gap in transparency.

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 zero waste. It's front-loaded with the core purpose and appropriately sized for the tool's complexity. Every word earns its place, making it easy to parse quickly.

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 tool has 5 parameters, no annotations, no output schema, and 0% schema description coverage, the description is incomplete. It lacks details on parameter usage, behavioral traits (e.g., data format, limitations), and output expectations. For a data-listing tool with multiple filters, this leaves critical gaps for an AI agent.

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 schema provides no parameter documentation. The description mentions 'for a repository,' which hints at 'owner' and 'repo' parameters, but doesn't explain the other three parameters ('exclude_unknown', 'from', 'to') or their semantics. It adds minimal value beyond the schema, failing to compensate for 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 clearly states the tool's purpose: 'List countries/regions of PR creators for a repository.' It specifies the verb ('List'), resource ('countries/regions of PR creators'), and scope ('for a repository'). However, it doesn't explicitly differentiate from sibling tools like 'pull_request_creators_history' or 'pull_request_creators_organizations', which focus on different aspects of PR creators.

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?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention sibling tools like 'issue_creators_countries' (for issues) or 'repo_stargazers_countries' (for stargazers), nor does it specify prerequisites or exclusions. Usage is implied by the purpose but lacks explicit context.

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