test_action

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

The description details the process: captures state before/after, runs detectors, computes diff, takes screenshot, and returns analysis. However, it lacks warnings about potential side effects like navigation or data mutation, and does not disclose whether the operation is destructive or requires special permissions. With no annotations, the description carries full burden but omits these details.

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 concise with a clear summary sentence, a two-sentence process explanation, and a bulleted args list. Every sentence adds value with no redundancy.

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 the tool has 2 parameters, no annotations, and an output schema (details not shown), the description covers purpose, process, parameters, and return value. However, it does not explain what 'detectors' are or how to obtain the element index, which may leave gaps for the agent.

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?

The schema has 0% description coverage, but the tool description's 'Args' section provides meaning: element_index is the index of the element to click, action_description is what the agent expects to happen. This compensates for the schema gap, though the description could specify how to determine element_index.

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 it clicks a button/link and automatically verifies what changed, combining click and verification into one call. It distinguishes itself from sibling tools like 'click' (just click) and 'verify_action' (likely just verification) by specifying the automated diff and screenshot analysis.

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 implies use when both click and verification are needed, and the action_description parameter guides the agent to state the expected outcome. However, it does not explicitly say when to use alternatives like 'click' or 'verify_action', or when not to use this tool.

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