Analyse Permission Gaps

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Compare' and 'identify gaps' imply a read-only analysis, but there is no statement about side effects, authentication requirements, or how current permissions are obtained. It also does not address edge cases such as a missing project.

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 sentence that is front-loaded with the action and outcome, containing no filler or redundant phrasing. It is appropriately concise for the described purpose.

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 tool with no annotations and no output schema, the description leaves important context unstated: how current permissions are determined, how requiredPermissions values should be formatted, and what the resulting gap report looks like. The optional parameters are documented in the schema, but the overall behavior remains under-specified.

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 provides descriptions for all three parameters, so the baseline of 3 applies. The description adds no parameter-specific meaning beyond the schema, but because schema coverage is 100%, it does not need to compensate for missing documentation.

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 analytic operation: comparing current permissions to required permissions and identifying gaps. The verb 'Compare' and the resource 'current permissions... required permissions' clearly indicate the tool's function, though it does not explicitly distinguish it from similar IAM tools such as gcp-iam-validate-deployment-permissions.

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 sibling IAM tools like gcp-iam-test-project-permissions or gcp-iam-validate-deployment-permissions. The phrase 'specific operations' implies a use case, but no prerequisites, exclusions, or alternatives are mentioned.

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