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

With annotations only covering the safety profile (non-readonly, non-idempotent, non-destructive), the description adds substantial behavior: data and settings untouched, project API (staging/production) and backend modules restart to pick up the CORS origin, asynchronous execution, one-operation-per-module/scope locking, the exact refusal messages, and retry timing.

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?

Dense but front-loaded: the core rebuild/roll-out action and non-destructive data note lead, then async polling, then the concurrency and update-refusal edge cases. Every sentence carries operational meaning, though the closing paragraphs are wall-of-text heavy.

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 output schema, the description compensates by explaining that a job_id is returned, that get_job_status names the built image/commit, and how completion surfaces in list_modules. Combined with the concurrency and retry guidance, nothing essential for correct invocation is missing.

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 100% and there is only one parameter (module_id), which the schema already documents and the description reinforces by pointing to list_modules. Baseline 3 is appropriate since the description adds no syntax or format detail beyond the schema.

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 states a precise verb and resource: rebuild a module from its repository's default branch head and roll it out while keeping pod count. This distinguishes it from siblings such as deploy_module, update_module, and redeploy_project, and an agent can identify the operation without opening the schema.

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?

It gives clear operational context: poll the returned job_id via get_job_status and confirm with list_modules, and it explains the concurrency refusal case and the RationalBloks-update retry. It does not explicitly say when to choose this over deploy_module or redeploy_project, so it stops short of full alternative routing.

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