session_profile_regenerate_fingerprint

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

With no annotations provided, the description carries the full behavioral burden. It usefully discloses that the new fingerprint replaces the stored identity and that subsequent launches use it, but omits permissions, reversibility, failure modes, or whether the profile must already exist.

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?

The description is front-loaded with the action and effect, then parameter details, and all sentences carry useful information. The BrowserForge implementation detail is slightly non-essential but not harmful.

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?

Because an output schema exists, the description need not explain return values. It covers purpose, persistence, and the platform-family parameters well enough to invoke the tool, though it lacks usage routing and safety warnings that would make it fully complete.

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 description coverage is 0%, so the description must compensate. It supplies the allowed os values ('windows', 'macos', 'linux') and a browser default ('chrome'), and its 'for a profile' phrasing implies the required profile argument. It still does not document the profile identifier format, and the stated browser default conflicts mildly with the schema's null default.

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 gives a specific verb (regenerate) and resource (fingerprint for a profile) and states the effect on the stored identity. It does not explicitly distinguish this from the sibling session_set_fingerprint, so it falls short of the top score.

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 description explains what the tool does and its persistence effect, but gives no guidance on when to use it instead of session_set_fingerprint, session_profile_set, or other profile-related siblings. No when-to-use or when-not-to-use conditions are stated.

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