persona.list

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

With no annotations provided, the description bears the full burden of behavioral disclosure. It does add one useful trait — content stays in lazy resources, signaling a low-cost listing operation. However, it does not disclose ordering, validity criteria, or failure behavior, leaving notable gaps.

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?

A single front-loaded sentence with zero filler. Every clause carries meaning, and the key verb 'List' appears first. No structural waste at all.

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?

Given zero parameters, an output schema, and a low-complexity operation, the description is largely complete. The main omission is explaining what makes a persona pack 'valid' and how this relates to the sibling persona.validate tool, which would have made the context airtight.

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 tool has zero parameters and the schema has no properties, so the baseline of 4 applies. There is no parameter meaning the description needs to add.

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 uses a specific verb and resource — 'List valid persona packs' — making the primary action unambiguous. The behavior note about lazy resources adds differentiation, though it does not explicitly distinguish from sibling tools like persona.validate or skill.list.

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 is given on when to use this tool over alternatives; no exclusions or sibling references are mentioned. An agent cannot tell whether to call persona.list before persona.validate or how they relate, despite persona.validate being an obvious sibling.

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