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

Goes well beyond the annotations: it discloses that the change is immediate and permanent, is untouched by publishing or discarding, never counts as an unpublished change, and fails on public template ids. It also names the authorization requirement and points at the access reference. That is exactly the kind of side-effect and permission context an agent cannot infer from destructiveHint/idempotentHint alone.

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?

Front-loaded with the core action in the first sentence, then the side-effect, then the failure/authorization constraints. Efficient overall, though the capitalized "AND permanently" emphasis and the run-on middle sentence are slightly noisier than needed.

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 two-parameter, non-open-world mutation with full schema coverage and annotations declaring the safety profile, this covers side effects, permissions, and the main rejection case. Only the return behavior and behavior on a nonexistent id are left unstated, which is minor since no output schema exists.

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 coverage is 100%, so the baseline is 3, but the description adds real meaning to the `title` parameter by classifying it as metadata rather than DRAFT content and spelling out the consequences of that classification. `questionBankId` gains only the implicit constraint that public template ids are rejected.

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 ("Sets the title of a question bank") and immediately differentiates itself from the publishing/draft workflow siblings by explaining that the title is metadata rather than DRAFT content. An agent can distinguish this from question_bank_publish, question_bank_discard_changes, and question_bank_update_notes without opening any schema.

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?

Gives two concrete preconditions that select or block use: it is "Rejected for a public template id" and "Needs full access" with a reference pointer. It does not explicitly contrast with nearby siblings such as question_bank_create or question_bank_duplicate, but the context is clear enough to place the call correctly.

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