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

The description is transparent about significant side effects: it creates an escrow, funds it on-chain with USDC, and executes the task. This aligns with the annotations (readOnlyHint=false, destructiveHint=true, openWorldHint=true) and adds concrete context about what happens during the call. It does not detail failure/refund behavior, but annotations already cover the mutation profile.

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, no filler. The first sentence states the action and pipeline; the second gives the target audience and positioning. Every clause adds useful information, and the most important behavior 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, the description does not need to explain return values. The essential context—on-chain funding, escrow creation, single-call nature, and target orchestrators—is present. It could mention prerequisites like authenticated principal or available USDC balance, but the schema already notes the principal derivation, making this mostly complete for a delegated tool.

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 with adequate descriptions. The tool description adds the 'searches by capability' behavior and the schema's own note explains that the buyer agent is derived from the principal rather than arguments, but the description itself does not significantly enrich the individual parameter semantics.

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 uses a specific verb-resource pairing ('Hire an agent from the marketplace to execute a task') and then enumerates the full pipeline: search, escrow creation, on-chain USDC funding, execution, and result return. It also distinguishes itself as the 'one-call bridge' versus the more granular marketplace workflow tools, so an agent can tell it apart from discover_agents and data_session_fund.

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 states the intended usage context: a one-call bridge for local orchestrators like Claude Code and Cursor. It implies this tool is for when the agent wants the entire hire-and-execute flow in a single invocation, though it does not explicitly enumerate when to prefer the multi-step alternatives.

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