add_role_by_id_composites

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

No annotations are provided, so the description must fully disclose behavioral traits. It states 'add composites' implying a write/mutation operation, but does not explain if composites are appended or replaced, what permissions are required, or any side effects. This is insufficient for safe invocation.

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 description is extremely concise (4 words) and front-loads the key action and target. While it lacks detail, it does not waste words. A slightly longer description with more context would better serve the tool, but it is not verbose.

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?

Given the tool has a nested object parameter, no output schema, and no annotations, the description is far too brief. It does not explain what 'composites' are, how they relate to roles, or what the result of the operation is. The agent lacks crucial context to use the tool correctly.

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 schema has 100% description coverage for all three parameters. The description adds no additional meaning beyond the schema, so baseline 3 is appropriate. It does not clarify the structure of the 'roles' object or how to specify composites.

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 clearly states the action ('add composites') and the target ('to a role by ID'). It is a specific verb+resource combination, but it does not differentiate from sibling tools like add_client_role_composites or add_realm_role_composites, which have similar purposes.

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 description provides no guidance on when to use this tool versus alternatives such as add_client_role_composites, add_realm_role_composites, or even remove_role_by_id_composites. There is no mention of context, prerequisites, or exclusions.

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