thunder_identity

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

No annotations are provided, so the description must carry the behavioral burden. It names export and wear modes but omits whether wearing a fingerprint mutates persistent state, required permissions, reversibility, error behavior, or effects on later browser actions.

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 no filler packs both modes and the file source into minimal text. The parenthetical is the only potentially cryptic element, but it does not add wasted length.

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 simple one-parameter tool, the description covers the two operating modes and the file input at a basic level. However, with no annotations or output schema, it should say more about what export returns and what changes when a fingerprint is worn; as written it is only minimally sufficient.

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?

There is one optional parameter and 0% schema description coverage, so the description must explain imitate_file. It identifies the argument as a fingerprint JSON file and implies omission triggers export mode, but it does not document path format, expected JSON structure, or validation behavior.

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 states two concrete actions: exporting the live fingerprint and wearing one from a fingerprint JSON file, with a parenthetical tying the latter to Skin.imitate. It is clear enough to distinguish the tool from generic browser actions, though it does not explicitly contrast with closer siblings such as thunder_ghost.

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 'or' construction implies that supplying a file switches from export mode to imitate mode, but it does not state when an agent should choose this tool versus alternatives or what preconditions apply. Usage is inferable rather than instructed.

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