get_repo

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

With no annotations at all, the description carries the full burden; it does disclose the payload contents (description, interfaces, stars, OG score, links), which is useful. It says nothing about failure behavior for unknown repos, rate limits, or whether the call is read-only, leaving real gaps.

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?

One front-loaded sentence with zero padding. It is terse to the point of omitting needed detail, but the length itself is appropriate.

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?

For a 2-parameter lookup with no output schema, listing the returned fields is genuinely helpful and largely sufficient. Missing the meaning/format of the two required identifiers is the notable remaining hole.

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 and does not: 'owner' and 'name' are never mentioned, and the owner/name split (user vs org, and whether name includes the owner prefix) is left ambiguous. A concrete example like owner='facebook', name='react' would have closed the 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?

States a specific operation (fetch details) on a specific resource (a single repo) and enumerates the fields returned, which separates it from search_repos and trending in practice. It does not explicitly name a sibling as the alternative, so it stops short of a 5.

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?

There is no statement of when to use this instead of search_repos or trending, and no prerequisites (e.g., the repo must already exist / be known). Usage is only inferable from the singular 'one repo'.

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