android_execute_action

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

No annotations are provided, so the description must disclose behavioral traits, but it offers none. It does not mention that this is a convenience wrapper, any side effects, permission requirements, error behavior, or results of the action. The description simply lists action types without revealing how the underlying device interaction behaves or what happens on failure. This is a significant gap for a tool with no safety annotations.

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 a single sentence and is front-loaded with the core purpose, so it is concise in wording. However, it is under-specified; the list of actions is useful but lacks the essential usage context that would make the sentence earn its place. It is not overly verbose, but it is minimal to the point of being incomplete, so it is only moderately well-structured.

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's complexity (17 parameters, 7 possible actions, no output schema), the description is grossly incomplete. It does not explain how to invoke each action, which parameters are required, how coordinates are resolved, or what the response contains. The tool cannot be used correctly without external knowledge. The absence of any param-action mapping is a critical flaw, making this definition inadequate for reliable agent 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 each parameter has a basic description (e.g., 'X coordinate for tap'). However, the tool description adds no extra semantic value, and the parameter descriptions themselves are insufficient to clarify which parameters apply to which action. For instance, it is not clear that 'x1','y1','x2','y2' are required for swipe, or that 'text' is needed for type and click_element. The description fails to link parameters to actions, leaving the agent to infer the mapping from the schema alone, which is ambiguous.

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 a high-level Android action and enumerates the supported actions (tap, swipe, type, press_key, click_element, scroll, launch_app). The verb 'execute' and resource 'Android action' are specific. However, it does not distinguish itself from its many sibling tools (e.g., android_tap, android_swipe) that accomplish the same individual actions, leaving the agent uncertain whether to use this unified tool or a specific counterpart.

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 versus the dedicated sibling tools. The description does not mention any advantages (e.g., convenience, single-call aggregation), prerequisites, or scenarios where it is preferred. The agent is left with no context to decide between calling android_execute_action and a specific tool like android_tap, making this dimension essentially missing.

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