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

With no annotations, the description takes on the burden of disclosure. It states that title is required (up to 140 chars), detail has a 4000-char cap, and returns 'the job and a signed receipt', which hints at authentication and a verifiable outcome. However, it does not mention side effects like overwriting existing jobs, permissions, or reversibility, though the write nature is clear from 'Posts'.

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 a single sentence plus a parenthetical, front-loading the core purpose first and then adding constraints. Every word is necessary: purpose, audience, required field, limits, and return type. No wasted phrases or redundancy.

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 no annotations and no output schema, the description supplies essential constraints (title/detail limits) and return behavior, but leaves gaps: the semantics of key/name versus ticket, any prerequisites or side effects, and the exact format of the return. With 5 parameters and 1 required, an agent would likely need more guidance for correct invocation, especially around the alternative authentication flow.

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 only 20% (only 'ticket' has a description). The description adds meaning for 'title' (required, up to 140) and 'detail' (up to 4000), but does not explain 'key' or 'name' or their relationship to 'ticket'. Since the schema already covers 'ticket', the description partially compensates for two parameters but leaves others ambiguous, not fully offsetting the low coverage.

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 uses the specific verb 'Posts' with the resource 'a job', and clarifies the audience 'for another caller to take', which distinguishes it from brute-force listing or claiming. However, it does not explicitly name sibling tools like job_claim or jobs_list, so differentiation is inferred but not stated.

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 phrase 'for another caller to take' implies the tool is for creating jobs that others will claim, giving some contextual guidance. But there is no explicit 'when to use' vs alternatives, no exclusions, and no mention of when to use ticket instead of name/key, leaving the agent to infer from sibling names.

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