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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description goes beyond that by documenting the returned aggregate fields and by flagging the empty-state behavior ("Returns no results if the user has not created an idea yet"), which an agent needs to interpret an empty list correctly. It does not cover pagination limits or ordering.

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 sentences, front-loaded with the core action, then the return shape, then the empty-state edge case. The return-shape sentence is dense but earns its place given there is no output schema. Slight redundancy in restating pagination fields that are also mentioned at the end.

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?

Because no output schema exists, documenting the return shape here is the right call and largely complete. However, three input parameters with zero schema coverage are undocumented, and there is no routing guidance among the many sibling list/get tools. For a simple list tool this is adequate but has clear gaps.

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 0% for three parameters (limit, offset, response_format), so the description carries the full burden and does not meet it. It mentions offset and has_more/next_offset only as response fields, never explaining how to use limit, offset, or the response_format enum when calling. An agent gets no guidance on defaults or maximum page size (50).

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?

"List the ideas in the signed-in user's workspace" gives a specific verb plus resource and names the scope (signed-in user). It also enumerates the per-item payload, which distinguishes it from get_idea in practice. It stops short of explicitly contrasting itself with idealaunch_get_idea or idealaunch_create_idea, so a 4 rather than a 5.

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?

Usage is implied by the resource name: this is the enumeration entry point, versus get_idea for a single idea. But the description never states when to pick this over idealaunch_get_idea or idealaunch_list_signups, nor any prerequisites. No exclusions or alternatives are offered.

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