Get Security Scheme Component

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

Annotations already provide readOnlyHint=true, so the read-only nature is established. The description adds useful behavioral context beyond that: the response includes type-specific settings and rowVersion, includeUsage toggles endpoint usage listing, and project context is a prerequisite. This is meaningful supplementary information without any contradiction.

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?

Two tightly written sentences carry the whole definition. The core action and return payload are front-loaded, and the optional flag and prerequisite are separated into the second sentence with no filler or repetition of schema fields.

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 simple read tool with full schema coverage and a readOnlyHint annotation, the description covers the core return content, the optional usage behavior, and a contextual prerequisite. It does not describe the exact response envelope or error cases, but those are less critical given the tool's low complexity and read-only nature.

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 the baseline is 3. The description adds value by clarifying that includeUsage lists 'the endpoints requiring it,' which is more specific than the schema's 'what references this scheme,' and by flagging the project context prerequisite that affects call validity.

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 specific verb ('Get'), a specific resource ('one security scheme'), and the key returned content ('type-specific settings and rowVersion'). It clearly reads as a singular retrieval operation, visually distinct from the sibling list_security_scheme_components, and the includeUsage note clarifies an additional capability without obscuring the core purpose.

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 gives clear context: it fetches one scheme, optionally with usage endpoints, and requires project context. It does not explicitly name list_security_scheme_components as the alternative for fetching all schemes, but the singular 'one' plus the existence of that sibling makes the intended scope reasonably clear.

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