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

Annotations already declare readOnlyHint=false, destructiveHint=false, idempotentHint=false, and openWorldHint=false, so the mutation/non-destructive profile is covered structurally. The description adds no behavioral context such as duplicate-name handling, permission requirements, or whether the theme is immediately visible to interviewers.

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 front-loaded sentence with no waste. It is efficient, though it may be underspecified rather than concise given the lack of usage and behavioral detail.

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 three-parameter mutation with full schema coverage and annotations, the description is minimally adequate. However, it omits prerequisites, duplicate behavior, and what 'theme' means in this product context, leaving meaningful gaps for an agent deciding whether and how to call it.

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 three parameters (name, survey_id, description) are already documented with examples and constraints. The description only implies the survey scoping and does not add meaning beyond the schema, making the baseline 3 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?

States a specific verb and resource ('Add a theme') and scopes it to a survey, which distinguishes it from survey-level siblings like create_survey. It is clear but relies on the domain term 'theme' without explaining what a theme is beyond 'what the interviewer explores.'

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?

There is no explicit when-to-use guidance, no prerequisites (e.g., survey must already exist), and no reference to alternatives among siblings such as create_survey or get_survey. The phrase 'in this survey' only loosely implies the survey must pre-exist.

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