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SweetDianDian

tablaze

by SweetDianDian
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JavaScript
Local

Give your agent a browser it can work with. Tablaze connects Codex and other MCP clients to Chromium through eight focused tools. Inspect a page, fill a form, extract a result, and check that the task actually succeeded.

Built with Playwright. Browser sessions stay running between calls; your MCP client supplies the reasoning. No additional model API key required.

See it work

Watch the 56-second demo →

A real MCP SDK client searches for a stay in Lisbon, verifies five outcomes, then encounters a replaced button and recovers with a fresh observation. The recording shows actual tool responses and browser captures.

Real MCP demo: five checks passed against the Lisbon hotel results

Observe the form → Fill · select · check · search → Verify the result

Reproduce the recording · Inspect the full trace

Related MCP server: hronaut

Get started

Requires Node.js 20+, npm and Git. This is a developer preview; npm publication is pending, so install from source:

git clone https://github.com/SweetDianDian/tablaze.git
cd tablaze
npm ci
npm run build
node dist/cli.js setup

For installed Chrome, skip setup, run node dist/cli.js doctor --channel chrome, and append --channel chrome to the Codex command below. This launches a separate browser session.

On Linux, use npx playwright install --with-deps chromium in place of setup to install the browser and system dependencies.

Browser modes and diagnostics

Connect Codex

From the cloned directory, register the built server:

codex mcp add tablaze -- "$(node -p 'process.execPath')" "$PWD/dist/cli.js"
codex mcp get tablaze

Then ask Codex:

Use Tablaze to open https://example.com, read the heading and links, verify that the title contains “Example Domain”, then close the session. Report the result of the checks.

Complete Codex setup covers desktop configuration, browser selection and troubleshooting. Other MCP clients can launch the same node /absolute/path/to/tablaze/dist/cli.js command over stdio.

A small loop, with useful controls

Capability

What it gives your agent

Warm sessions

Keep page state between calls. Temporary, isolated browser contexts by default; explicit CDP attachment for an existing profile.

Compact observations

Full or incremental snapshots with element refs, text budgets and visible truncation.

Guarded actions

Check snapshot revisions and DOM targets before input. Re-observe when a target changes.

Ordered batches

Send up to 20 actions in one call, with completed, failed and skipped steps. Stops on error; earlier effects remain.

Explicit verification

Check the resulting URL, title, text, field values, visibility and element counts.

Eight tools

Tool

Use it to

tab_open

Open a page and receive its first snapshot.

tab_snapshot

Observe the page, changes or a selected frame.

tab_act

Click, fill, press, select, check, scroll or wait.

tab_verify

Test explicit assertions against the current page.

tab_extract

Read text, links or tables.

tab_capture

Capture a JPEG screenshot.

tab_list

Inspect owned sessions.

tab_close

Close a session and release its resources.

Explore the project

Guide

Inside

Codex integration

Copyable configuration, tool arguments and troubleshooting.

Runtime reference

Reference lifetime, batch semantics, browser modes and current limits.

Benchmark

Reproduce the local workload and inspect every raw sample.

Validation evidence

Real browser, SDK and Codex results, with their measured scope.

Security

Data handling, resource ownership and private reporting.

Release packaging

Build the npm tarball and source archive.

Ubuntu CI on Node 20 and 22 passed the build, browser/MCP tests and package inspection. To check a source checkout yourself, run npm test; use npm run bench for the separate local benchmark.

Contribute

Bring a reproducible browser case, improve a guide, or send a focused fix. Open an issue · Submit a pull request · Read the contribution guide

MIT licensed · Dependency credits and project provenance

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityMaintained
ResponsivenessNo issues

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