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

With no annotations, the description carries the full burden. It discloses that the output is a list of technology IDs (not full objects) and that search is by name or category, which is useful behavioral context. However, it does not mention rate limits, auth requirements, or any potential side effects, but for a simple search tool that is acceptable.

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 is two concise sentences with no wasted words. It front-loads the verb and resource, then explains the return value and its purpose, making it well-structured and easy to parse.

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 low-complexity tool with one parameter and no output schema, the description is complete. It states the search criteria, the return type (IDs), and how those IDs should be used, covering all essential information for correct invocation and downstream utilization.

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 schema has 100% coverage with 'q' described as 'Search query', but the description adds semantic value by specifying that the query can match by name or category. This goes beyond the schema's generic description and gives the agent clearer guidance on what to input.

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 the tool searches SaaS Browser technologies by name or category and returns technology IDs for use with SearchSaasTool. This specific verb+resource+output purpose distinguishes it from sibling tools like SearchAlternativesTool and SearchCategoriesTool.

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 provides clear context for use: it returns IDs intended for the SearchSaasTool technology_ids filter. This implies a concrete workflow but does not explicitly name alternatives or state when not to use this tool, so it falls short of a 5.

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