MCP Appium Server

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

With no annotations provided, the description carries full burden for behavioral disclosure. It states the action but doesn't describe what 'Open' entails operationally - whether this triggers a system UI change, requires specific permissions, has side effects on app state, or what happens if notifications are already open. For a UI interaction tool with zero annotation coverage, this leaves significant behavioral questions unanswered.

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 perfectly concise - a single sentence that communicates the essential information without any wasted words. It's front-loaded with the core action and includes the platform limitation efficiently. Every word earns its place in this minimal but complete phrasing.

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 zero-parameter tool with no output schema, the description provides the basic purpose and platform constraint. However, as a UI interaction tool with no annotations, it should ideally mention what constitutes success/failure or any observable effects. The description is minimally adequate but lacks operational context that would help an agent understand what 'success' looks like for this action.

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 tool has 0 parameters with 100% schema description coverage, so the schema already fully documents the empty parameter set. The description appropriately doesn't add parameter information beyond what the schema provides. Baseline for 0 parameters with full coverage is 4, as there's no need for parameter semantics in the description.

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 action ('Open') and target ('notifications panel'), making the purpose immediately understandable. It distinguishes from siblings by specifying 'Android only', which is useful context. However, it doesn't explicitly differentiate from similar UI interaction tools like 'tap-element' or 'inspect-and-tap' that might also open panels.

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 'Android only' limitation provides some contextual guidance about when this tool is applicable versus iOS-specific tools. However, it doesn't offer explicit alternatives for iOS scenarios or explain when to use this versus other notification-related tools (none appear in the sibling list). The guidance is implied rather than comprehensive.

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