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

Annotations already declare readOnlyHint=true, openWorldHint=true and destructiveHint=false, so the safety profile is covered. The description adds the underlying endpoint (GET /job/details) and enumerates the returned content (time entries, parts used, report, custom fields), which is meaningful behavioral context given there is no output schema.

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 front-loaded sentence carries the resource, the identifier modes and the returned facets, followed by the endpoint tag. The field enumeration is long but earns its place because no output schema exists; nothing is redundant.

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 and only two parameters, the description supplies what an agent needs: the retrieval key options and an inventory of the returned job data. It omits failure behavior (e.g., what happens with an unknown identifier) but is otherwise sufficient for calling the tool correctly.

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 the baseline is 3, but the description earns above that by explaining what 'num' actually is ('the job number shown in the app') and by listing the three accepted identifier kinds together with their scope (job, id, myId). It clarifies the enum meaning beyond the terse schema text.

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 verb and resource ('One job by num/id/myId') and enumerates the facets returned. It implicitly separates itself from the many list_* siblings by emphasizing 'One job', but never names synchroteam_list_jobs, so the differentiation is left to inference.

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 explicit when-to-use guidance or reference to alternatives such as synchroteam_list_jobs or the other get_* tools. The parenthetical about 'the job number shown in the app' helps pick between num/id/myId, but that is parameter help rather than usage routing.

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