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

Annotations only say it is a non-read-only, non-destructive, closed-world write, so the description carries real weight and delivers: no client site may be published, documents stay in the database, the full source artifact is kept out of context, reviewedDocuments binds the review to current SHAs, and missing components/animations cannot be excepted. What is missing is behavior around version conflicts (expectedVersion), failure/rejection responses, and whether repeated calls overwrite prior inventories.

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 purpose is front-loaded in the first sentence, which is good, but the rest is a run of semicolon-joined clauses mixing data-shaping instructions, invariants, and prohibitions with no separation or ordering by importance. Every clause is substantive, yet the density makes it hard to parse which rules are hard constraints versus formatting advice.

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 7-parameter, deeply nested, write operation with no output schema, the definition covers the domain invariants but omits what an agent most needs operationally: how expectedVersion should be obtained, what happens on a version mismatch or rejected inventory, and what the visibility flag changes. The required-vs-optional status of inventory/discovery sub-fields is left entirely to the schema.

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 reported at 0%, and several of the seven parameters get no explanation at all: expectedVersion (concurrency token), rulesFingerprint, and visibility (private/global default). The description does add meaning for reviewedDocuments and for the discovery.links vs pages[].links substitution, and it effectively explains the manualControlReviews disposition rule ('included or justified as non-layout'). That is useful but leaves a substantial compensation 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?

The opening sentence names a specific action and object: explicitly accepting/recording the website's complete source inventory, gated on integration and validation of all its pages/layouts. That is enough to separate it from siblings such as check_site_completeness or record_template_components. It stops short of 5 because the remaining clauses (light URL inventory, template IDs, discovery.links union) blur the boundary between the tool's action and the data-shaping rules it expects.

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 precondition 'après intégration et validation de toutes ses pages/layouts' implies when the tool becomes usable, and 'Aucun site client publié' implies a state constraint. However, there is no explicit when-not guidance, no mention of an alternative sibling to use before validation is complete, and no explanation of prerequisites like a matching expectedVersion or rulesFingerprint. Usage is inferable but not stated.

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