execute-browser-commands

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

No annotations exist, so the description must disclose behavior on its own. It only says 'safely' and lists commands, without noting side effects, sequential execution semantics, error/failure behavior, or return value shape. The coordinate reference note is helpful, but the description does not disclose that commands can navigate, click, mutate state, or that continueOnError controls failure handling.

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 moderately sized and well-structured: a one-line summary, a scannable command list, and a focused coordinate note. There is no fluff, and the pointer to examples in the schema avoids unnecessary duplication.

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?

The tool is highly complex with 15 command types and per-command args, and the schema handles that well. However, the description does not explain what the tool returns, whether commands execute in order, what happens on failure, or how timeout and contextId interact. For an agent deciding whether to use this plus how to interpret results, these are material gaps.

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 baseline is 3. The description adds value with the coordinate-system note: for mouse commands coordinates are viewport-relative with (0,0) at top-left, which is not fully explicit in the individual parameter descriptions. The command list also clarifies the allowed command vocabulary.

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 states a clear verb and resource: 'Executes a sequence of predefined browser commands safely.' The appended command list makes the scope concrete and distinct from single-action sibling tools like capture-screenshot or get-element-properties. It is specific, not tautological.

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 given on when to prefer this tool over individual browser tools, when a sequence is needed, or when a more targeted sibling like browser-evaluate or get-element-properties would be better. The word 'sequence' implies multi-step use, but that is left to inference rather than stated.

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