browser_select_all

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

Discloses the core action and analogy to Ctrl+A. No annotations provided; description doesn't cover edge cases (e.g., non-text elements, no focus). Adequate but not comprehensive.

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?

Two sentences, no fluff. Front-loaded with action and includes practical usage note. Highly efficient.

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?

Covers main functionality and typical use case. Could mention constraints (editable elements only), but given simplicity, it's sufficiently 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?

No parameters; schema coverage is 100%. Description adds meaning by explaining the tool's effect, which is the only needed info. Baseline 4 appropriate.

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?

Description clearly states action: select all text/content in focused element. Provides keyboard shortcut and common use case, distinguishing from siblings like browser_clear_value or browser_type.

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?

Explicitly says 'commonly used before typing to replace existing text', giving a clear context. Lacks explicit 'when not to use' but is adequate given simplicity.

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