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

Goes well beyond destructiveHint=true: it discloses all-or-none semantics, the exact failure condition (missing id or another user's idea without admin rights), the fact that the reply names the offending ids, and cascading deletion of sources, tags and images with no undo. This is precisely the pre-call risk information an agent needs before a destructive bulk operation.

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?

Four tight sentences front-loaded with scope, then atomicity, then irreversibility. The opening clause "by the ids `list_ideas` and `save_idea` give" is slightly awkward phrasing but carries real information, so nothing is wasted.

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 single-parameter destructive tool with no output schema, the description covers scope, input origin, atomicity, permission rules, error reporting and cascade side effects. Nothing an agent needs to decide or to call it correctly is missing.

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%, including the max-100 limit, so the baseline is 3; the description adds provenance (ids come from list_ideas/save_idea) and the constraint that ids must belong to this workspace or the caller's own ideas, which the schema does not express. Meaningful value beyond the schema, though not exhaustive.

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 (delete) and resource (ideas in the Ideas tab of the active workspace) and distinguishes itself from siblings by naming list_ideas and save_idea as the id sources. An agent knows exactly what this does and what it operates on without opening the 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?

"Use it to undo a wrong save_idea" gives a concrete triggering scenario, and the mention of list_ideas tells the agent how to obtain the required input. It does not contrast with delete_post or other removal-ish siblings, so there is no explicit when-not guidance, but the intent is clear.

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