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

Annotations already establish idempotency and non-destructiveness, but the description adds important behavior: HypeFox makes each video about 30 hours before its slot, and approval may depend on real facts being added first. It does not discuss auth, failure handling, or return behavior, but it is well above the annotation baseline.

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 definition is front-loaded with the manual-mode scope and the batch approval action, then adds the timing behavior and alternatives. All sentences are relevant, though the in-app analogy is slightly expendable and the final Automatic-mode sentence is terse.

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 action tool with annotations covering safety and idempotency, the description covers the main operational context: mode, timing side effect, prerequisites, and alternatives. It lacks response or failure details, but no output schema exists and the core invocation context is present.

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?

There is only one parameter, plan_id, and schema coverage is 0%. The description usefully says where to find it ('the plan_id is in get_calendar'), but it does not describe its format or any validation constraints, so it only partially compensates for the schema gap.

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 gives a specific verb and resource: approve every upcoming idea of a weekly plan at once. It also clearly distinguishes the batch action from approve_slot (one by one) and notes the manual-mode condition, so an agent can identify the operation 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?

It explicitly scopes use to Manual mode, names the alternative approve_slot for individual approvals, points to update_slot when real facts are needed first, and notes that Automatic mode approves ideas on its own. This is clear when-to-use and when-not-to-use guidance.

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