zen_tab_pool

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

No annotations provided, description covers key behaviors (grow/shrink, auto-grow on empty acquire). Lacks details on side effects like tab closure or auth, but adequate for a pool maintenance tool.

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?

Three sentences, front-loaded. Each sentence adds unique 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?

No output schema, no annotations, low schema coverage. Explains size and auto-grow, but missing url parameter semantics. Reasonably complete for a simple tool, but could improve.

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 coverage 0% so description must compensate. Explains 'size' well, but completely omits explanation of 'url' parameter, leaving its purpose unclear.

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?

Clearly describes it maintains a warm pool of tabs, grows/shrinks to size, and references sibling tools for acquire/release. No ambiguity.

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?

Gives context on when to use (setup pool) and references specific sibling tools for acquire/release. Does not explicitly list exclusions or when not to use, but sufficient for a maintenance tool.

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