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

Annotations are all false and therefore do not disclose side effects, so the description carries the burden. It clearly states that a new plan is created, shareable links are returned, and the user may be added as a first participant with a participant_token. This gives an agent meaningful behavioral knowledge beyond the neutral annotations.

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?

Three short sentences with no wasted words. The core action and return value are front-loaded, the optional behavior is stated next, and the usage restriction closes it.

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 simple two-parameter create tool with full schema coverage and no nested objects, the description covers what is created, what is returned, the optional side effect, and when to call it. The lack of an output schema is compensated by explicitly naming shareable links and participant_token.

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 the baseline is 3. The description adds a useful behavioral detail about your_name by mentioning the returned participant_token, but the schema already documents both parameters adequately.

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 ('Create') and resource ('new lesgooo plan'), and goes beyond a generic create by adding 'get its shareable links' and optional participant addition. This separates it from all sibling tools, none of which create a plan.

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?

Provides an explicit call gate: 'Only call after the user asked for it.' It does not enumerate alternatives or exclusions, but the unique action of creating a plan makes the intended context clear enough.

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