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

Annotations already cover the safety profile (readOnlyHint=true, destructiveHint=false, openWorldHint=false), so the bar is lower. The description adds two genuinely useful behavioral facts: no template is mandatory before composing, and omitting component returns the complete reference (i.e., a potentially large response) while supplying it truncates the payload. It says nothing about output format or depth, so the addition is real but modest.

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 core model is stated first, followed by the component-filter behavior, which is the right ordering. Sentences are dense but each carries information. Minor cost: the description is written in French while the tool name, title, and annotations are English, and 'Aucun modèle obligatoire' is terse enough to be ambiguous.

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?

There is no output schema, so the description must convey what comes back, and it does list the topics covered (structure, sources, placement, publication). What is missing is any explanation of the detail parameter and any hint about the shape or size of the returned reference when component is omitted, which matters for a documentation-dump tool.

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 must carry both parameters. It handles component well, giving the intent (limit the response to that component plus its applicable rules) and concrete example values (form, popup, navigation, source-search). The second parameter, detail, is never mentioned anywhere, so half the input surface is undocumented in both the schema and the description.

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 names a specific verb and resource: reading the page model (page → sections → elements), the possible content sources (gallery, native composition, HTML from web references), placement, and publication. That is far more specific than the title alone. It does not, however, differentiate itself from close siblings such as describe_page_style, get_page_structure, get_page_outline, or describe_editor_capabilities, leaving the agent to guess which reference to fetch.

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?

Usage is only implied: 'Aucun modèle obligatoire' signals this is a reference lookup rather than a required setup step, and the component clause implies 'pass component to narrow, omit for the full reference.' There is no explicit 'use this when…' statement and no exclusion directing the agent to get_page_structure or describe_page_style instead.

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