Daytona Playwright MCP Server

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the action is to 'Check' status, implying a read-only operation, but doesn't detail what specific status information is returned (e.g., session ID, active tabs, errors) or any behavioral traits like latency or dependencies. This is insufficient for a tool with no annotation support.

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, clear sentence that directly states the tool's purpose without any unnecessary words. It is front-loaded and efficiently communicates the core function, making it highly concise and 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 has no parameters, 100% schema coverage, and an output schema exists, the description's job is reduced. However, for a status-checking tool with no annotations, it should ideally specify what 'status' entails (e.g., session health, tab count) to be fully complete. The current description is minimal but adequate given the structured data support.

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, and the input schema has 100% description coverage, so no parameter information is needed in the description. The description doesn't add any parameter semantics, but since there are no parameters, this is acceptable, and the baseline score of 4 reflects that no compensation is required.

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 ('Check') and target ('current status of the browser session'), making the purpose immediately understandable. However, it doesn't explicitly differentiate from sibling tools like 'browser_list_tabs' or 'browser_start', which might also provide status-related information, so it doesn't reach the highest score.

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 provides no guidance on when to use this tool versus alternatives. For example, it doesn't specify if this is for checking overall session health, tab status, or other browser states, nor does it mention prerequisites like requiring an active session. This lack of context leaves usage unclear.

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