ossinsight-mcp

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

With no annotations provided, the description carries the full burden of behavioral disclosure but offers minimal insight. It implies a read operation ('Get') but does not cover critical aspects like authentication needs, rate limits, data format, or whether it returns aggregated statistics versus raw data. This is inadequate for a tool with 5 parameters and no output schema.

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, straightforward sentence that is front-loaded and wastes no words. However, it is overly concise to the point of under-specification, missing necessary details for effective tool use. While efficient, it sacrifices completeness for brevity.

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's complexity (5 parameters, 0% schema coverage, no output schema, and no annotations), the description is insufficient. It does not explain return values, behavioral traits, or parameter meanings, leaving significant gaps. For a historical data tool with multiple time-related parameters, more context is needed to guide the agent adequately.

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 but fails to do so. It mentions 'repository' which hints at 'owner' and 'repo' parameters, but does not explain 'period,' 'from,' or 'to,' leaving their purposes undocumented. This adds little value beyond the bare schema, resulting in poor parameter understanding.

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 states the tool's purpose as 'Get pull request creators history for a repository,' which is clear but vague. It specifies the resource (pull request creators history) and target (repository) but lacks detail on what 'history' entails (e.g., timeline, statistics, or activity logs). It distinguishes from some siblings like 'pull_request_creators_countries' but not clearly from 'repo_issue_creators_history,' leaving ambiguity in scope.

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 explicit guidance is provided on when to use this tool versus alternatives. The description does not mention prerequisites, context, or exclusions, such as comparing it to 'list_pull_request_creators' or 'repo_issue_creators_history.' This leaves the agent without direction on selecting this tool over similar siblings in the server.

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