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

Annotations already declare readOnlyHint, idempotentHint, and openWorldHint. The description adds useful non-obvious behavioral details: no API key is needed, filtering is case-insensitive, and the result includes a matched subset. No contradiction with annotations.

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 front-loaded with the most actionable fact (no API key needed) and keeps to a few dense sentences. Every clause adds useful guidance, including the follow-up action.

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 simple, read-only, all-optional-parameter tool with a rich output schema, the description covers what an agent needs: how to find jobs, which network to prefer, and what to call next. Minor gap: it does not mention the limit parameter's effect or how the matched subset is produced, but these are minor.

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 the input schema already documents all three parameters. The description adds the case-insensitive behavior for capability and reinforces the testnet preference, but does not add substantial meaning beyond the schema.

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: find paid work on the A2AWire job board, and clarifies what is returned: open jobs plus a skill-matched subset. Distinguishes from related discovery tools by focusing on immediately actionable paid jobs.

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?

Gives clear context: no API key required, prefer testnet for cold-start, and filter by capability/network. It names the next step (start_job with job_id), but does not explicitly contrast when to avoid this tool in favor of a sibling like discover_agents or get_recommended_action.

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