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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint and destructiveHint=false, covering the safety profile. The description adds nothing behavioral beyond that – no mention of default result count, sorting, pagination, or the fact that all parameters are optional and the search runs against an open corpus.

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 short sentences, front-loaded with the resource and then the filter dimensions. No filler, though the second sentence overlaps heavily with what the schema already conveys.

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 an eight-parameter, zero-required search tool with no output schema, the definition is minimally adequate. It does not state defaults (e.g., limit default of 20 is only in the schema), how results are ordered, or what an empty keyword search returns, leaving the agent to guess at the retrieval envelope.

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 every parameter is already documented with type and example values. The description restates three of the eight filters (launch_type, product_category, company_name) without adding syntax, default, or interaction detail, so the baseline of 3 applies.

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 and resource ('Find product launches and updates') and enumerates the primary filter dimensions, which distinguishes it from sibling tools like search_funding_rounds or search_acquisitions. Minor gap: it omits several available filter dimensions (days, limit, industry, location, keywords), so the scope picture is partial.

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?

No guidance on when to use this tool versus the many sibling search_* tools, and no exclusions or prerequisites. The agent must infer that this is the product-launch search channel purely from the name.

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