open_web_ui

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

With no annotations, the description carries the full burden and does well: it reveals that the server runs on a background thread, is bound to 127.0.0.1, stops on client disconnect, and is idempotent (returns the running URL). It does not mention port-conflict behavior or auth, but the core behavioral traits are disclosed.

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 two short paragraphs, front-loading the purpose in the first sentence and then providing essential behavioral details. Every sentence adds value, with no redundant or vague 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?

Given the tool's simplicity (one optional parameter, no annotations) and the presence of an output schema, the description covers all necessary context: what it starts, how it runs, its lifecycle, and the return value. It is complete for an agent to decide and invoke the tool correctly.

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 contains one optional 'port' parameter with a default of 8765, and schema coverage in the description is 0%. The description does not mention the port parameter or add any additional meaning to it. Since the parameter is self-explanatory and fully defined in the schema, this is adequate but not enhanced.

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 uses a specific verb-resource pair ('Start the local web UI') and clearly states the resource's purpose ('browsing saved jobs and their tailored resumes'). This distinguishes it from sibling data-retrieval tools like search_jobs or list_tailored_resumes, since it launches a UI rather than returning data.

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 gives clear context for when to use the tool: when the user wants to browse saved jobs and resumes via a local web UI. It implies the UI is for exploratory viewing rather than API-level access, but does not explicitly name alternatives or exclusions, so it stops short of a 5.

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