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

The readOnlyHint annotation already establishes that this is a safe read operation. The description adds non-obvious behavioral context by explaining that the report surfaces orphan duties/privileges that grant no real access and includes inferred license tiers. This goes beyond what the annotation alone provides, though it does not mention output format or performance implications.

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?

Three sentences, no filler, with the main purpose front-loaded in the first sentence and useful specifics in the following two. Every sentence earns its place.

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?

Without an output schema, the description does a good job of explaining what the generated report contains. It covers model scoping, the per-role breakdown, license-tier inference, and orphan detection. It stops short of describing the exact output structure or delivery mechanism, but for an optional-parameter read-only report tool this is close to complete.

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 both filterModel and maxRolesDetail are already well documented in the input schema. The description adds no additional parameter-level meaning, so the baseline score of 3 is appropriate.

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 names a specific verb ('Generate'), a specific resource ('security & licensing governance report'), and the exact contents of the report: roles, duties, privileges, entry points, and inferred license tiers. This clearly distinguishes it from sibling security tools by emphasizing the governance-report angle and the orphan-duty detection.

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?

Usage is implied: use this when you need a governance report for indexed models. However, it does not explicitly say when to choose this over related siblings like get_security_coverage_for_object or trace_security_chain, and it offers no when-not-to-use guidance.

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