navigate_browser
Navigate to a public http(s) URL in this browser session.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | ||
| job_id | Yes |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |
Navigate to a public http(s) URL in this browser session.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | ||
| job_id | Yes |
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |
Changes observed during successful MCP inspections.
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, openWorldHint=true and destructiveHint=false, so the safety profile is covered. The description usefully adds the 'public' reachability constraint, but it says nothing about whether navigation blocks until load completes, what happens to existing page state, or how failures surface.
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?
A single front-loaded sentence with zero filler. It is efficient, though the extreme brevity contributes to the documentation gaps picked up elsewhere rather than being a virtue on its own.
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?
An output schema exists so return values needn't be described, and annotations cover safety. However, with a required, undocumented job_id and no behavioral detail about blocking or failure for a navigation tool with many browser siblings, the description is too thin to call it correctly without guesswork.
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 0% and neither parameter carries a type description. The URL parameter gains partial meaning from 'public http(s) URL', but 'job_id' is completely unexplained — an agent has no idea where a job_id comes from or what session it identifies.
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?
States a concrete verb ('Navigate') and resource target (a public http(s) URL in this browser session), which is more specific than the bare name. It does not distinguish itself from siblings like wait_browser or get_page_state, but the action itself is unambiguous.
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 phrase 'public http(s) URL' implicitly excludes local/intranet targets and gives some sense of when this applies, but there is no explicit when-to-use guidance, no mention of when to prefer wait_browser or get_page_state after navigating, and no stated prerequisites.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.