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

Adds substantial behavior beyond the annotations: removal from the expand queue, resolution of open expand-lane escalations, a 409 refusal while expansion is in flight with retry guidance, and a business-level replay guard. There is a mild tension between the stated 'changes no state' replay guard and idempotentHint=false, but the mid-expansion refusal and restore path keep the safety profile consistent with destructiveHint=false.

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 and the escalation rationale are front-loaded, and each sentence carries behavioral content. It is dense and slightly long for a two-parameter tool, but little of it is filler.

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 an output schema present, the return-value note is redundant but harmless. Combined with the rich usage and failure behavior, everything an agent needs to call it correctly is covered.

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 0%, so the description carries the burden. It usefully explains that list_roadmap supplies item_id, but project_id is never explained or scoped, so it only partially compensates for the coverage gap.

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 ('Cancel / close a single roadmap item') and disambiguates from siblings like list_roadmap by naming it as the id source. An agent can distinguish it from rearm_roadmap_item and archive_project without opening any 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?

Gives a concrete when-to-use: delivered or duplicate items that keep re-parking and generating recurring roadmap_item_parked escalations. It also notes the restore path via the dashboard, but does not explicitly name sibling alternatives (e.g., rearm_roadmap_item) as the not-to-use case.

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