List Pokédex entries

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

No annotations provided, but description discloses the source (INDEX.md), the exact return format, and the filtering behavior (case-insensitive substring). It does not mention error handling but is sufficient for a read-only listing.

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 sentences, front-loaded with core action, no filler words.

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?

Simple tool with one optional parameter and no output schema; description covers the return shape and filter behavior. Missing edge-case handling but adequate for intended use.

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 already includes a description for the 'type' parameter with 100% coverage. The tool description reiterates the same filter info without adding new meaning, so baseline 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?

Description says 'Parse INDEX.md and return all entries as [{ id, name, types, file }]' which clearly states the action and output structure. This distinguishes it from siblings that focus on specific lookups or stats.

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?

Clear context: use when you need the full list of Pokédex entries, optionally filtered by type. It does not explicitly mention alternatives or when not to use, but the purpose is evident.

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