get_fixtures

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

The annotations already establish that this is a safe, read-only, idempotent query. The description adds useful behavioral context such as the default window of five gameweeks and that data is live from the FPL API, but it does not describe return shape, pagination, or other operational details.

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 two tight sentences with the core resource and default behavior front-loaded. Every clause adds useful information about defaults, parameters, or the FDR scale.

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 rich annotations, full schema coverage, and the absence of an output schema, the description provides enough context to invoke the tool correctly. It covers the default behavior and each parameter's effect, though it could more explicitly distinguish this tool from get_fixture_run.

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 100%, so the schema already documents all three parameters. The description adds meaning beyond the schema by explaining that team shows a run from that team's own perspective, gameweek narrows to a single round, and gameweeks_ahead extends the window.

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 identifies the resource as FPL fixtures and highlights the key attribute: difficulty ratings on a 1–5 FDR scale, live from the FPL API. It stops short of explicitly naming or contrasting with the sibling get_fixture_run, so it does not earn 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?

It explains what happens with no arguments and how each optional parameter changes the view, which gives implied usage context. However, it does not explicitly say when to choose this tool over alternatives such as get_fixture_run, nor does it provide exclusions.

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