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

With no annotations provided, the description must convey behavioral traits. It states the tool lists ideas and includes specific output fields (status, prices, x402 endpoints). However, it does not disclose whether the operation is read-only, pagination behavior (despite having a 'limit' parameter), or any side effects. The description is adequate but not thorough for a tool without 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?

The description consists of two concise sentences with no redundancy. The first sentence states the action and purpose, the second lists included data. Every word adds value, and the structure is front-loaded with the most critical information.

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?

Given the simple parameter set (2 optional params), no output schema, and no annotations, the description covers the tool's functionality well: it specifies what the tool returns and its scope. A minor gap is the lack of mention of pagination or that 'limit' controls page size (though implied), but overall it's sufficiently complete for a list operation.

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?

The input schema covers both parameters ('limit' and 'status') with 100% description coverage, so the description adds no additional meaning. It mentions output fields but not parameter behavior or defaults. Baseline score of 3 is appropriate since the schema already documents both parameters sufficiently.

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 uses a specific verb 'List' and resource 'all Idea Machine ideas', immediately clarifying the tool's function. It explicitly distinguishes from sibling tools (e.g., buy_exclusive, get_full_idea) by stating it returns a list of ideas with status, prices, and x402 endpoints, leaving no ambiguity about its purpose.

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?

The description implies usage for browsing available/sold ideas but does not provide explicit when-to-use or when-not-to-use guidance. While the context of siblings suggests alternatives, the description itself lacks direct exclusions or comparisons, leaving the agent to infer appropriate scenarios from the tool name and sibling list.

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