browser_react

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

No annotations are provided, and the description discloses no behavioral traits: no side effects, return values, authentication needs, rate limits, or destructive potential. The word 'devtools' implies some form of inspection but nothing concrete is stated, so the agent is left completely uninformed.

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 text is extremely short but grossly under-specified. This is not effective conciseness; it omits essential information. The single phrase offers no structure or front-loaded guidance, making it closer to a placeholder than a usable description.

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 tool with 4 parameters, no output schema, and no annotations, the description is woefully incomplete. An agent cannot determine what actions are valid, what the JSON output is for, or what a 'fiberId' or 'session' represents in practice. The description fails to provide any context needed for correct invocation.

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 per the rubric. The tool description adds no additional meaning beyond the schema entries (e.g., 'React action', 'Fiber ID for inspect'). While the schema descriptions are minimal, the description itself contributes nothing, so the baseline stands.

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 'React devtools' is a noun phrase with no verb or action. It does not state what the tool does, only hints at a subject area. It is vague and could apply to any of many React-related tools, and does not differentiate from the extensive browser_* sibling list.

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?

There is no guidance on when to use this tool, prerequisites, or alternatives. The description gives no conditions for selection, leaving the agent to guess when 'React devtools' is appropriate versus the 38 sibling browser tools.

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