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

The annotations (readOnlyHint=false, destructiveHint=false) are minimal and do not cover the tool's behavior extensively, so the description bears more responsibility. It discloses that the tool is non-committal (returns an action_id to confirm) and requires explicit consent, which is useful. However, it does not describe side effects, idempotency, or what happens if consent is false, leaving some behavioral aspects opaque.

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 a single, dense sentence that front-loads the key information: it is the first step of a write, requires email and consent, and returns an action_id. It is concise and efficient, with no redundant words. Slightly more structure (e.g., separating steps) could improve readability, but it is acceptable as is.

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?

Given the tool has 7 parameters, 2 required, and no output schema, the description provides the essential workflow context (preparatory step, confirmation needed) but omits details like the return structure (only mentions action_id), error handling, and the role of optional parameters. It is sufficient for a basic call but lacks depth for an agent to anticipate all edge cases.

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?

Only 29% of parameters have schema descriptions (consent and message). The description adds no semantics for the other five parameters (name, email, projet, telephone, type_projet). It only highlights that email and consent are mandatory, which is already in the schema's required list. The description fails to compensate for the low coverage, leaving the meaning of several parameters unclear.

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 clearly states the tool's function: it is the first step of a write operation, preparing a callback request that requires email and explicit consent, and returns an action_id for later confirmation. It distinguishes itself as a preparatory step rather than the final action, which sets it apart from its sibling confirmer_action. While it doesn't name the sibling, the purpose is specific and unambiguous.

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 description implies it should be used before confirmer_action by noting it returns an action_id to be confirmed, but it lacks explicit guidance on when to use this tool versus alternatives. It does not mention when not to use it, nor does it reference any sibling tools. The only hint is the phrase 'PREMIERE etape', which suggests a sequential workflow, but no explicit conditions or exclusions are given.

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