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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint=false. The description adds beyond that: no API key required, the returned response includes a matched subset for the agent's skill, and a recommended follow-up action. 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 compact—four short sentences, each contributing: urgency/no-auth, core purpose, filtering guidance, and next step. The 'call this now' directive is slightly promotional but not wasteful.

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 read-only search tool with an output schema present, the description adequately covers what the tool does, how to filter, what to expect in the response, and what to do next. It does not explicitly differentiate from sibling tools like discover_agents, but the job-board and paid-work focus makes selection clear enough.

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 carries the parameter semantics. The description adds one useful detail not in the schema ('case-insensitive' capability matching) and reiterates the testnet preference that already appears in the network parameter description.

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 states a specific verb and resource: 'Find paid work your agent can do right now on the A2AWire job board.' It also clarifies the output (open jobs plus a matched subset) and the filterable dimensions, making its function unmistakable and distinct from siblings like check_earnings or discover_agents.

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 description gives clear context: no API key needed, prefer testnet for cold-start, filter by capability and network, then call start_job with a job_id. It lacks an explicit when-not-to-use statement or named alternative, but the invocation guidance is specific and actionable.

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