Best fit
Install or audit the real upstream uBrowser MCP runtime, verify its exact 11-tool surface, and get a clear READY or REVIEW report.
// free MCP setup check
uBrowser Setup & Compatibility Validator
Install or audit the real upstream uBrowser MCP runtime, verify its exact 11-tool surface, and get a clear READY or REVIEW report.
Fix the missing-runtime problem
A free setup and compatibility companion for the independent open-source uBrowser MCP runtime. It validates an existing checkout or, with explicit permission, installs one pinned upstream revision into an empty folder, checks Playwright Chromium, initializes MCP, verifies all 11 expected tools, and can run one authorized HTTPS smoke test.
What it checks
- Node.js, package identity, package lock, compiled MCP entry, and the exact pinned upstream revision.
- Playwright Chromium availability when you request a browser probe.
- The MCP initialize and tools/list handshake with the exact 11-tool surface.
- One optional HTTPS navigation target that you supply and are authorized to test.
Safe by default
Read-only validation is the default. Installation requires explicit download permission, uses a user-selected empty destination, pins the upstream revision, and refuses to overwrite an existing runtime. The companion does not bypass authentication, CAPTCHAs, anti-bot controls, rate limits, or site terms.
// choose with context
Is uBrowser Setup & Compatibility Validator the right skill?
It returns
Install or audit the real upstream uBrowser MCP runtime, verify its exact 11-tool surface, and get a clear READY or REVIEW report.
Do not use it as
Do not treat a successful run as proof beyond the supplied files, declared scope, and evidence the skill actually checked.
Compatibility, access, version, and licence
- Reads or accesses
- Only the files or context you deliberately provide; review the listing before granting additional access.
- Compatibility
- Agents that read the open SKILL.md format. Verify runtime and service requirements at the purchase or install destination.
- Version
- Verify the current package version at the linked destination.
- Licence
- Review the package licence and seller terms at the linked destination.
Questions
Is this the uBrowser MCP server itself?
No. It is a free JustHandled Labs setup and compatibility companion for the independent open-source Lulzx/ubrowser project.
What does READY prove?
Only that the checks selected for that run passed. It is not a guarantee for every client, website, login, or workflow.
Will it overwrite my current installation?
No. The installer refuses a non-empty destination and never silently updates an existing runtime.
Does it guarantee a fixed token saving?
No. The upstream runtime uses batching and compact snapshots, but savings depend on the task, page, model, and comparison baseline.
Validate uBrowser before you depend on it.
Free companion. Pinned upstream revision. Explicit installation boundaries. Evidence for every check it runs.
Get the free validator on Agensi