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

Goes well beyond the annotations: it scopes the operation to the caller's own hold, explains the `released: false` case (lapsed or claimed by someone else) even though no output schema exists, and notes the tool is 'Free'. That is genuine behavioral context an agent would otherwise have to discover by trial.

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 plus a short cost note, all front-loaded with the scope restriction before the edge-case semantics. Nothing is redundant.

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 one-parameter mutation with no output schema, the definition supplies the scope limit, the failure semantics of the returned field, and the cost. An agent has everything needed to call it and interpret the result.

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 100% and the single parameter's description already says 'The held draft's id'. The description confirms it must be a draft the user holds, but adds no format or syntax detail, so the schema does the heavy lifting.

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 and resource ('Release the connected user's hold on a draft') plus the reason and consequence, so an agent can tell it apart from hold_opportunity and release_deal without opening either schema. The title is matched by a description that actually explains the operation.

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?

Gives a clear trigger context ('a draft they decided not to post') and states the downstream effect, which implies when to reach for it. It does not name hold_opportunity as the counterpart tool, so the routing is inferred rather than explicit.

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