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

Beyond the annotations (readOnly=false, destructive=false, openWorld=false), it discloses that summary and content are never auto-generated, that ordering is append-to-back, that declined-name collisions are rejected, and that in workflow runs a third-party provider (TypeSafe) receives the record, rule text, and project context — a meaningful data-sharing/auth disclosure an agent could not infer.

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 verb, resource, and the hard constraint, with each subsequent sentence carrying a distinct behavioral fact. The final TypeSafe sentence is dense but still earns its place as a privacy/behavior disclosure.

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 six-parameter mutation tool with full schema coverage and no output schema, the description covers the important non-obvious behaviors (ordering, name refusal, no generation, external provider). It omits any hint about what a successful response contains or the idempotent retry path, leaving a small gap.

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 already 100%, so the baseline is 3; the description still adds real meaning by clarifying that 'impact' is semantic product scope rather than priority and that summary/content are optional and not generated. It does not touch requestId idempotency or the content format hint, so it does not reach 5.

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 ('Create a project idea') plus the key constraint (required short name, max 20 chars), which immediately distinguishes it from update_idea, decline_idea, delete_idea, and restore_idea in the sibling list.

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 concrete selection guidance: a new idea lands at the back of the order and should be moved with reorder, and names matching a declined idea are refused (implying restore_idea/decline_idea interplay). It lacks an explicit statement of when NOT to use it versus update_idea, so it falls short of a 5.

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