multi_browserbase_stagehand_act_session

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

With no annotations provided, the description carries the full burden. It discloses that actions should be atomic and specific, and mentions it's 'for a specific session', but doesn't cover important behavioral aspects like error handling, performance characteristics, or what happens if the action fails. It provides some guidance but leaves significant 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?

The description is reasonably concise and front-loaded with the core purpose. The parenthetical '(for a specific session)' could be better integrated, and some guidance is redundant with the schema, but overall it's efficient with clear examples that earn their place.

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 3-parameter tool with no annotations and no output schema, the description provides adequate but incomplete context. It covers the 'what' and 'how' of using the tool but lacks information about return values, error conditions, or how this multi-session version differs from the single-session 'browserbase_stagehand_act' sibling tool.

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 100%, so the schema already documents all parameters thoroughly. The description doesn't add meaningful parameter semantics beyond what's in the schema - it repeats the same guidance about atomic actions that appears in the 'action' parameter description. Baseline 3 is appropriate when schema does the heavy lifting.

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 the tool 'performs an action on a web page element' with specific examples like 'Click the sign in button' or 'Type 'hello' into the search input'. It distinguishes itself from non-atomic actions but doesn't explicitly differentiate from sibling tools like 'browserbase_stagehand_act' (which appears to be a similar single-session version).

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 provides clear context on when to use this tool: for atomic, specific actions on web page elements, and when NOT to use it (avoid multi-step actions). It gives examples of good vs. bad actions but doesn't explicitly mention alternatives among sibling tools like 'observe' for uncertain situations (though the schema hints at this).

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