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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. Beyond that, the description usefully discloses that desktop OSes receive an agent prompt structured as a read-only check followed by the fix, while phones get manual steps only — real output-shape behavior. It still says nothing about how the procedure is delivered (field name, length limits, whether the 'reviewed' status can vary), so it adds context without fully lifting the bar.

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?

Three short sentences, front-loaded with what is returned, then the input prerequisite, then the OS-dependent behavior. Every sentence carries information. The opening noun fragment lacks a verb, a minor structural blemish rather than a waste of words.

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 only two required, fully described parameters, a closed enum, and annotations covering the safety profile, the remaining gap an agent would care about is what differs by OS — and the description covers exactly that. No output schema exists, and the description still sketches the return shape (prompt with check-then-fix vs manual steps), so nothing essential is 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 100%, so baseline would be 3, but the description earns above baseline by explaining what the os enum values actually produce: macos/windows/linux yield an agent prompt, ios/android yield manual steps. That is meaningful semantics the enum alone does not convey. It adds nothing about incident_id beyond the schema's 'Incident id from another Fixlane tool.'

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 names the specific resource returned — 'the reviewed fix procedure of one incident for one operating system' — which is concrete enough to distinguish it from siblings like get_digest or check_software that do not return procedures. The phrase 'reviewed' and the per-incident/per-OS scoping add precision. It stops short of a clean verb-first statement (the title supplies 'Get'), keeping it just below 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 states the prerequisite clearly: 'Takes an incident id returned by the other Fixlane tools,' which tells the agent this is a downstream call, not an entry point. It does not name an explicit alternative or a when-not condition, so it lacks the exclusionary guidance a 5 would require.

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