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

Annotations already declare destructiveHint=true and idempotentHint=true, so the safety profile is covered. The description adds a genuinely non-obvious behavioral fact (status edits do not propagate to lists), but never states that all fields are replaced, what is overwritten, or what the response looks like - meaningful gaps for a destructive mutation.

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 short sentences with the purpose front-loaded and the caveat second; nothing is padded. The phrase "update those lists explicitly if needed" is slightly soft and could have named the tool outright.

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 destructive four-required-parameter mutation with no output schema and thin schema descriptions, the definition covers the key cross-entity gotcha but omits replace semantics and mutation outcome. It is adequate to call correctly, not to call confidently.

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 only 25% - just request_id carries a description - and the tool description mentions no parameters at all. It adds zero meaning beyond the names label, color, and status_id, so nothing compensates for the undocumented schema fields.

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 gives a specific verb plus resource ("Edit a reusable status definition"), which is clearly distinct from create_status and delete_status by verb alone. It also scopes the resource as the reusable definition rather than a list's local copy, though it never names a sibling to contrast with.

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?

"Lists store their labels/colors separately; update those lists explicitly if needed" steers the agent away from assuming a cascade and toward the list-update path, which is a real routing rule. It stops short of naming update_list explicitly, so the agent must infer the alternative.

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