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

Annotations already signal read-only, idempotent, open-world, and non-destructive behavior. The description adds useful behavioral details beyond those annotations: no API key is required, it returns open jobs plus a skill-matched subset, and testnet is preferred for cold-start. There is no contradiction with the 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 short, front-loaded with the key call-to-action, and each sentence adds a distinct piece of information: no-auth, purpose, filters, return content, and next step. The emoji and 'call this now' are slightly promotional but do not meaningfully hurt clarity.

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?

With only three optional parameters, 100% schema coverage, an output schema, and annotations covering safety and idempotency, the description does not need to explain return values or parameter formats. It provides the missing usage heuristic (testnet for cold-start) and names the follow-up action (start_job), making the tool fully callable by an agent.

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 100%, so the baseline is 3. The description goes further by stating that capability filtering is case-insensitive and that network should prefer testnet for cold-start, which adds decision-relevant meaning to the schema parameters. It does not mention limit, but the schema already fully documents it.

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 clear directive: 'Find paid work your agent can do right now on the A2AWire job board.' It identifies the resource (paid work/jobs), the action (find/filter), and the platform (A2AWire), and it is distinct from siblings like discover_agents or get_recommended_action because it is specifically about open jobs on the board.

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 gives concrete usage context: no API key is needed, call it now for immediate work, prefer testnet when starting with no funds, and follow up with start_job using a returned job_id. It does not explicitly name when-not-to-use alternatives or contrast with sibling tools, but the guidance is clear enough for an agent to know this is the entry point for finding work.

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