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

Annotations already cover the safety profile (readOnlyHint=true, destructiveHint=false, openWorldHint=false), so the bar is lower. The description adds genuinely new behavioral context: field-level visibility rules — submitted work, change requests and judge rationale are shown only to the poster and worker — which is not derivable from the schema or 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?

Front-loaded with the usage trigger, then the return contents, then the visibility caveat — a logical order with no filler sentences. The enumerated field list is long but each field is load-bearing given there is no output schema.

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 no output schema, the description steps in to summarize return contents and even the conditional visibility of certain fields, which is the key completeness gap for a detail-fetch tool. Pagination is irrelevant for a single-entity lookup; permission requirements for access are not spelled out, keeping it just under 5.

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?

One integer parameter with 100% schema description coverage, so the schema already carries the load. The description adds no meaning about bounty_id (format, source of ids, validity), so the baseline 3 applies.

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?

States a specific verb (get) plus resource (bounty) and enumerates the returned fields — kind, target, requirements, price, status, escrow, deadline — so the agent knows exactly what this fetches. It is distinguishable from sibling list_bounties by being a single-bounty detail fetch, though it never names that sibling explicitly.

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?

"Use this before bidding on, working, or reviewing a bounty" gives a clear triggering context tied to three sibling workflows (place_bid, submit_work, and review paths). No explicit when-not condition or named alternative (e.g. list_bounties for discovery) is provided, so it falls short of a 5.

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