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

With no annotations at all, the description carries the full burden, and it does disclose that cancel maps to DELETE and update PATCHes status to active/paused and drop posts attachment content, which conveys mutation semantics. It says nothing about authorization requirements (agent_key, token, handle), idempotency_key behavior, whether cancel is irreversible, or rate limits, so it is only partially transparent for a destructive multi-action tool.

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 front-loaded with the action list and then delivers one compact clause per action, with no filler sentences. Density is high and every clause conveys an endpoint or body field, though the run-on 'drop' clause with nested 'or filename and content with optional mime...' is harder to parse.

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 five-action multiplexed tool with 11 parameters, 9% schema coverage, no annotations, and no output schema, the description covers the per-action request bodies but not the surrounding contract: auth parameters, idempotency, resource identifiers (id, wanted_id, transfer_id), or any hint of the response shape. It is a useful but incomplete spec for correct invocation.

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 only 9% across 11 parameters, so the schema does little work; the description partially compensates by naming create body fields (template_bounty_id, cadence, amount_usd, funding_mode, notify), the update status enum, and drop fields (attachment_ids, filename, content, mime, encoding, kind). It leaves agent_key, id, token, handle, wanted_id, transfer_id, idempotency_key, delete_credential, and payment_signature entirely unexplained.

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 opens with a specific verb set and resource: 'Create, list, update, cancel, or start a recurrence with a new input file', and enumerates each action against its HTTP endpoint, so an agent can identify the resource and the available operations. It does not distinguish this tool from any sibling (e.g. bounty_* or contract_* tools that also deal with financial artifacts), so it stops short of 5.

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 per-action endpoint/body breakdown effectively says which action to pick for a given intent (create vs update vs cancel vs drop), which is real usage guidance internal to the tool. However there is no when-to-use/when-not-to-use framing against alternatives, no prerequisites, and no statement of which agents should call it or under what conditions.

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