get_release_notes

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

No annotations are provided, so the description carries the burden. It implies a read-only upstream fetch and discloses ordering ('newest first') and the two supported libraries, and the output schema covers return values. It omits any auth, rate-limit, or caching behavior, so it adds some but not rich context.

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?

Front-loaded with the core action, followed by concrete use cases and a compact Args block. The Args section partly duplicates the schema, but given 0% schema coverage it earns its place.

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 simple two-parameter read tool with an output schema, the description covers purpose, use cases, and both parameters. Only edge details like limit bounds or recency guarantees are missing.

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 coverage is 0%, so the description must compensate, and it does: library is documented as 'merlin' (default) or 'perceval', and limit as the number of releases, newest first. It does not state bounds or a maximum for limit, a minor 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 states a specific verb and resource: 'Read the most recent upstream release notes,' with the scope ('most recent upstream') making it distinct from doc/API/source lookup siblings. It does not explicitly name a sibling to distinguish itself, but the operation is unambiguous.

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?

It gives clear usage contexts – 'what changed', 'is this API still current', and migration questions – plus the rationale (fast-moving libraries, breaking changes described in release notes). It stops short of naming alternatives or stating when not to use it.

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