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

Clearly explains it returns nothing without stars, results depend on star quality, supports filtering and pagination. No contradiction with annotations (readOnlyHint=true).

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?

Well-structured with key info front-loaded, but somewhat verbose. However, every sentence adds value; no redundancy.

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?

Completely covers return behavior, filtering nuances, and provides actionable guidance for poor results. No output schema needed due to thorough description.

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?

Adds significant value beyond schema descriptions, e.g., explaining techStack uses AND logic, recommending starting with 1-2 technologies, and search strategy for each parameter.

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?

Explicitly states the tool retrieves job postings from starred companies, calling it the 'main job feed'. It distinguishes from siblings like get_starred_listings by advising to check that tool if results are empty.

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?

Provides extensive guidance: when to use (main feed), what to do if empty/poor (check stars, suggest better stars), and detailed search strategy including recommended filter usage.

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