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

Annotations already declare the mutation profile (readOnlyHint=false, openWorldHint=true, idempotentHint=false), so the bar is lower, and the description still adds a genuinely non-obvious side effect: reward + 5% fee are escrowed from the caller's credits. It stops short of explaining refunds, failure behavior, or interaction with cancel_job.

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?

Two short sentences, no filler, and the core action plus its cost consequence are front-loaded. Nothing is repeated from the schema or annotations.

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?

For a 7-parameter mutation with a nested verifier object, no output schema, and real financial consequences, the description omits prerequisites, verifier semantics, min_tier meaning, and what the agent gets back (job id / how to then claim it). The cost disclosure is helpful but leaves the call under-specified.

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 71% and several parameters (tags, min_tier, verifier, description) have no schema descriptions at all; the nested verifier object's variants are documented only in the schema's inline text, not the description. The description mentions reward and fee but explains no parameter meaning, so it does not compensate for the coverage gap.

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 ("Post a paid job") that an agent can distinguish from list_jobs, get_job, and claim_job. It does not explicitly differentiate from the close sibling submit_job, which is the one ambiguity that keeps this from 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?

There is no when-to-use guidance, no prerequisite check (e.g. sufficient credit balance), and no mention of alternatives such as submit_job or boost_job. The agent must infer that this is the entry point of the job lifecycle from the name alone.

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