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

No annotations provided, so description bears full burden. It does not mention whether the tool is read-only, has side effects, requires authentication, or has rate limits. The description only states it 'returns' data, implying no modification, but this is not explicit.

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?

Two concise sentences with no wasted words. The first sentence states the purpose, the second details input options and output contents.

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?

Despite clear purpose, the description lacks details on output format (no schema), parameter explanation for all 4 params, and behavioral traits. It is incomplete given no annotations and no output schema.

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%, requiring the description to compensate. It only explains idea and websiteUrl as part of the ad-hoc mode, but omits explanation for ideaId (though mentioned in text) and description parameter, leaving 2 of 4 parameters unexplained.

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 clearly states it runs AI-powered competitor analysis and distinguishes from siblings (export, score, validate market fit) by specifying the exact output: competitors, strengths/weaknesses, positioning, and competitive score.

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 explicitly says to provide either an existing ideaId or ad-hoc { idea, websiteUrl }, guiding the agent on two usage modes. However, it does not mention when not to use this tool or compare to alternatives like score_idea or validate_market_fit.

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