manage_preferences

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

With no annotations provided, the description bears full responsibility for disclosing behavioral traits. It does not mention side effects (e.g., mutation from update/reset/import), required permissions, idempotency, or whether operations are reversibly. The single sentence is insufficient for a tool that can modify state.

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 a single short sentence that front-loads the core domain. It is appropriately concise, though a slightly more expanded form could improve clarity without sacrificing conciseness.

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's complexity (4 parameters, nested object, multiple actions, no output schema), the description is too sparse. It fails to explain the purpose of each action, the default userId, how preferences affect recommendations, or what responses look like, leaving significant gaps for effective agent use.

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 parameters have inline documentation. The global description adds no extra meaning beyond what the schema already provides, meriting the baseline score of 3.

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 'Manage user preferences for documentation generation and SSG recommendations' uses the vague verb 'manage' and does not specify the supported actions (CRUD, import/export). It conveys the domain but lacks a specific action-resource pairing, failing to distinguish from numerous sibling tools that might also deal with preferences or recommendations.

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 like recommend_ssg, memory_* tools, or other managers. No when-to-use, when-not-to-use, or exclusion criteria are present, leaving the agent to infer usage purely from the schema.

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