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

The description discloses meaningful behavioral detail beyond the annotations: it searches by capability, creates an escrow, funds it on-chain in USDC, executes the task, and returns the result. This makes the irreversible financial nature and multi-step internal behavior explicit, complementing the readOnlyHint=false and destructiveHint=true 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?

Two sentences carry all essential information with no filler. The first sentence front-loads the action and workflow, and the second sentence explains positioning for local orchestrators. Every clause adds value.

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?

The description covers the full lifecycle and the on-chain funding aspect, while the input schema documents parameters and the authenticated-principal derivation. An output schema exists, so return-value details are not required. A minor gap is lack of explicit prerequisites, such as whether onboarding or registration must happen first.

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 capability, task_input, and max_price_usdc. The main description does not add parameter-level meaning beyond the schema; it only restates 'searches by capability' and 'task,' which the schema already covers. Baseline 3 is appropriate.

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-resource pair—'Hire an agent from the marketplace to execute a task'—and enumerates the full flow: search, escrow, on-chain funding, execution, and result return. It differentiates itself from siblings like discover_agents and the data_session_* family by positioning itself as the 'one-call bridge' that includes funding and execution.

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 gives the intended usage context: local orchestrators such as Claude Code and Cursor wanting a single call to use the marketplace. It does not explicitly name alternative flows like data_session_open/fund/query for multi-step sessions, but the 'one-call bridge' phrasing strongly implies when this tool should be preferred.

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