rbac_generate_roles

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

With no annotations provided, the description carries the full burden of behavioral disclosure, but it only mentions 'hierarchical role inheritance.' It doesn't state whether the tool writes files to the project directory, whether existing content is overwritten, or that a Pro/Enterprise api_key is required (despite the api_key parameter) — critical facts for a code-generating tool.

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?

A single 10-word sentence that front-loads the verb, resource, and key differentiator (hierarchy). No filler words, though the brevity comes at the cost of behavioral detail — a tradeoff acceptable for this dimension.

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 generation tool with zero annotations and no output schema, this is under-specified. An agent can't tell what artifacts are produced (files? code? config?), what side effects occur in the target directory, or how to distinguish this from rbac_generate_middleware. The api_key dependency on paid tiers is also unmentioned outside 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 100%, so all five parameters are already documented in the schema. The description adds modest value by hinting that roles are organized hierarchically, which clarifies the relationship between role names, but it doesn't explain how inheritance is expressed or how resources map to permissions.

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 uses a specific verb+resource: 'Generate role and permission definitions' with a distinctive behavioral trait, 'hierarchical role inheritance.' This makes the core action clear and distinguishes it from siblings like rbac_generate_middleware and rbac_audit_permissions, though it doesn't name them explicitly.

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?

No guidance is given on when to use this tool versus the two RBAC siblings (rbac_generate_middleware, rbac_audit_permissions). There are no usage scenarios, prerequisites, or exclusions stated, leaving the agent to infer selection criteria from the name alone.

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