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

Annotations already declare this a safe, idempotent, closed-world read, so the safety profile is covered. The description adds value by disclosing the report payload (confirmed lineups, timelines, xG, possession), but says nothing about behavior when both optional params are omitted, when both are supplied, or what happens for an unplayed fixture.

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?

A single dense sentence that front-loads the verb and resource and then lists the payload. No filler, no restatement of the title.

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?

With no output schema, the description correctly carries the burden of describing return contents comprehensively. The remaining gap is the absence of any note on how the two optional selectors interact, which matters for a tool requiring zero parameters.

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 both parameters are already documented with examples and semantics. The description adds no further meaning about arguments, so the baseline of 3 applies.

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?

Uses a specific verb ("Retrieve") plus a well-scoped resource ("post-match tactical reports") and enumerates the contents. "Post-match" implicitly contrasts it with get_match_preview, but no sibling is named explicitly.

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 "post-match" framing implies the tool is for completed matches rather than upcoming ones, which is usable context. However, nothing tells the agent how to choose between get_match_preview, get_all_lineups, or this tool, and there is no guidance on the club vs fixture_id selection.

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