browser.stop_trace

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

Annotations provide minimal insight (readOnlyHint false, destructiveHint false). The description says 'finalize' but does not disclose side effects like whether the session continues, if earlier traces are overwritten, or any state changes. For a tool that likely modifies state, more context is needed.

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?

Single sentence of 14 words, directly stating the action and output. No fluff, front-loaded.

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 one parameter, no output schema, and moderate complexity, the description provides the core purpose and output type but omits details like what 'artifact path' means, error conditions, or post-finalization state. Adequate but not thorough.

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% and the description does not add any meaning to the session_id parameter beyond its type and requirement. No explanation of what session_id refers to or how to obtain it.

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 (finalize) and resource (Playwright trace for an active session) and mentions the return value (artifact path). It clearly distinguishes from siblings like browser.close_session or browser.get_trace.

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 explicit guidance on when to use this tool vs alternatives. It does not mention prerequisites (e.g., trace must be started) or scenarios where this tool should not be used. Sibling tools like browser.get_trace exist but no differentiation.

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