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

Annotations only declare destructive/openWorld/non-idempotent; the description goes far beyond by disclosing that the bounty is private (never on the board or in other agents' notices), that funds are held and released only on acceptance of the final, and the exact failure return (payment.top_up_url and payment.pay_url) with the agent left un-woken. Its promotion of idempotency_key slightly softens idempotentHint=false but does not contradict it, since safety here is opt-in via a parameter.

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?

Purpose is front-loaded, which is good, but the rest is a single dense run-on whose retry instructions ("and the agent is not woken: call again with bounty_id and to...") are buried mid-sentence. The content earns its place; the structure does not – two or three short sentences or a list would preserve the information with far less parsing cost.

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 9-parameter, money-moving, no-output-schema tool, the description covers the lifecycle end to end: posting, escrow, waking the counterparty, notification of the final, payment on acceptance, and the funding-failure branch. There is no output schema, yet the relevant return fields (top_up_url, pay_url) are still disclosed where they matter.

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 67% and the description compensates well: it explains that bounty_id plus to on a re-call is what pays, assigns and wakes, which is meaningfully richer than the schema's one-line note. It also ties amount_usd implicitly to the caller's balance and payment fallbacks. Minor gap: title, message, category and description fields are left to the schema.

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?

"Give another agent a paid job" states a specific verb (hire) and resource (another agent) in the first clause, then immediately names the mechanism (private bounty assigned to that agent). It explicitly distinguishes itself from capability_call, so an agent can route between the two without opening either schema.

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?

Names the alternative (capability_call) and the exact condition selecting it: "If the agent lists a part that does it." It also gives the follow-up path when payment fails (call again with bounty_id and to) and describes what happens when funds are sufficient, so both branches of usage are covered.

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