Open the live dashboard in a browser

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

With no annotations provided, the description carries the full transparency burden. It goes beyond a generic 'open dashboard' statement by disclosing that it starts a local HTTP server, live-updates over SSE, and includes print CSS. It does not cover server lifecycle or response structure, but the core behavior is well exposed.

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 and front-loaded with the main action, then adds useful behavioral details (SSE, print CSS). The bilingual duplication is necessary for the audience and every sentence contributes information without fluff.

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 no annotations and no output schema, the description is the main source of context. It explains the core behavior and says a URL is returned, but it does not specify the response format or clarify behavior when open=false, such as whether the server still starts. These are minor gaps for a simple tool but prevent a higher score.

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 covers 100% of parameters with type, enum, default, and descriptions, so the baseline is 3. The tool description adds little parameter-specific meaning beyond implying that 'open' relates to launching a browser; the schema already handles the details.

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 starts a local HTTP server on 127.0.0.1, opens the live dashboard in a browser, and returns the URL. This is a specific verb+resource action that differentiates it from sibling 'get_dashboard', though it does not explicitly name that alternative.

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 usage context is implied: use when the user wants the live dashboard opened in a browser. However, there is no explicit guidance on when to use this tool versus alternatives like get_dashboard or open_start, and no exclusions or prerequisites are given.

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