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

Beyond the annotations it discloses the key behavior: the tool performs no side effects ('opens nothing by itself'), returns human-readable steps covering screens, buttons and fields, and hands off execution to browser tools. That is real added context on top of readOnlyHint/destructiveHint. It does not describe the shape or length of the returned instructions, which keeps it from a 5.

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 handoff behavior is front-loaded, but the second sentence is overloaded, chaining the return format, the no-side-effect guarantee and the browser handoff into one clause. The closing note on Odoo API plan availability, complete with a dated check, is tangential to the point of calling the tool and reads as promotional/background rather than operational.

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 no parameters, no output schema and annotations already covering the safety profile, the description supplies what is needed: what is returned, that nothing is mutated, and which tools finish the job. Only the format of the returned instructions is left unspecified, which is minor for a guidance-style 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?

The tool takes zero parameters, so the baseline is 4 and there is no schema content for the description to compensate for. Nothing about parameter meaning is missing because there are none.

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 (create a contact in the user's own Odoo account) and immediately clarifies the actual mechanic: it returns step-by-step instructions rather than performing the write. That clarification is essential given the name implies a mutation, and it distinguishes this tool from the cotlet_browser_* tools it delegates the real action to.

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?

Explicitly sequences the workflow: call this to get the steps, then execute with cotlet_browser_* in the Odoo Cloud Browser. The API-plan note explains why the browser path is needed. It stops short of naming exclusions (e.g. when to prefer a different Odoo sibling like create_invoice), so it is clear context rather than full when/when-not guidance.

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