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

Annotations already declare readOnlyHint and idempotentHint, covering the safety profile. The description adds valuable behavioral detail beyond the annotations: no API key required, case-insensitive filtering, testnet preference, and a response containing both open jobs and a matched subset. It does not contradict any annotation.

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 five short sentences: a call-to-action with a key benefit, the core purpose, the filter guidance, the return shape, and the next step. Every sentence carries practical information, and the most important guidance is front-loaded.

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 the output schema exists and annotations cover safety, the description still provides the essential context an agent needs: what the tool finds, how to tailor the search, what the response includes, and the suggested next call. No critical gap remains.

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 schema already documents limit, network, and capability with examples and defaults. The description repeats the capability and network filters but adds no new parameter-specific meaning, so the baseline 3 applies.

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 opens with a specific verb and resource: 'Find paid work your agent can do right now on the A2AWire job board.' It also states the return value (open jobs plus a matched subset) and filter dimensions, making it clearly distinct from unrelated siblings like check_earnings or register.

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 provides clear context for when to use the tool ('call this now'), parameter-level guidance (capability filter, prefer testnet for cold-start), and a direct next step (then call start_job). It does not explicitly name alternatives or exclusion cases, so it falls short of a perfect 5 but still gives solid usage direction.

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