action_web_session_create

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

With no annotations, the description alone must disclose behavioral traits. It states 'live Playwright browser session' implying interactivity, but fails to mention whether the browser is visible, resource implications, or what happens after creation. The 'headless' parameter suggests configurability, but the description doesn't elaborate.

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 a single sentence, which is concise, but it is under-specified. It sacrifices informativeness for brevity, making it less helpful than it could be.

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 that the tool creates a session and has an output schema, the description is too minimal. It does not explain the session lifecycle, how it interacts with sibling tools like action_web_navigate, or what the output contains. The lack of context makes it insufficient for proper agent usage.

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%, meaning the description adds no meaning to the parameters. It does not mention 'name' or 'headless' or explain their purpose, leaving the agent to infer entirely from the schema.

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 clearly states 'Create a live Playwright browser session', specifying the verb and resource. It also hints at the use case with 'for interactive sites/forms', which helps distinguish it from sibling tools like static_web_extract or navigation actions.

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 provided on when to use this tool versus alternatives. It does not mention prerequisites, when not to use it, or contrast with static tools that might be more appropriate for non-interactive sites.

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