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

The description discloses significant behavioral traits beyond the annotations: it creates escrow, funds it on-chain with USDC, executes the task, and returns the result. This aligns with destructiveHint=true and idempotentHint=false, and adds useful context about the financial, irreversible nature of the operation.

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 and front-loaded: the first sentence names the action and the exact multi-step behavior, and the second sentence gives the target user context. There is no filler or redundant restating of schema details.

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 tool with three parameters, full schema coverage, an output schema, and annotations covering safety, the description supplies the necessary operational context: what the tool does end-to-end and who it is intended for. It does not discuss timeout or failure behavior, but the output schema and annotations cover the most critical invocation concerns.

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?

The input schema provides 100% coverage for all three parameters, so the description does not need to re-explain them. The phrase 'Searches by capability' slightly reinforces the capability parameter, while task_input and max_price_usdc are already well documented in the schema. No additional parameter semantics are missing.

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: 'Hire an agent from the marketplace to execute a task,' and enumerates the full workflow (searches by capability, creates escrow, funds on-chain USDC, executes, returns result). It also distinguishes itself from sibling tools by calling itself 'the one-call bridge for local orchestrators.'

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 clearly frames when to use this tool: when you want the entire hire-and-execute flow in a single call, especially from local orchestrators. It implies a contrast with separate workflow tools like discover_agents or data_session_fund, though it does not explicitly name alternatives or provide exclusion criteria.

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