danddanddand/t3code-intellij

Runs the T3 Code web UI inside an IntelliJ-based IDE as a tool window,
using the IDE's bundled Chromium (JCEF). The pane behaves like the T3 Code desktop client:
no URL bar, no browser chrome, just the app, with Reload, Pair and Restart in the tool window
header.
The embedded browser is monitored. A server that is down, a page that fails to load, a frozen
page, a crashed renderer or a dead Chromium process is reported with a status card, a
notification and a one-click fix instead of a blank pane.
This is an independent, community-maintained plugin. It is not affiliated with or endorsed by
T3 Tools Inc.
Embeds the T3 Code web UI in a tool window so you can drive
your agents without leaving the IDE. Unofficial; not affiliated with T3 Tools Inc.
Loads your local T3 Code server (default http://127.0.0.1:3773/ ) in the IDE's embedded Chromium, with no browser chrome.
Checks the server is reachable before loading and explains how to start it when it is not.
Pairs with the server for you by running t3 pair .
Monitors the page and the Chromium process and reports a frozen or crashed browser with a one-click restart.
Detects the IntelliJ 2026.2 out-of-process JCEF bug (JBR-10027) that kills embedded browsers after two minutes and offers to switch the IDE to in-process JCEF.
## Install
From the JetBrains Marketplace: Settings, Plugins, search for "T3 Code Tool Window".
From a zip: download it from the releases page,
then Settings, Plugins, gear icon, Install Plugin from Disk.
Requires an IntelliJ Platform 2026.2 IDE (IntelliJ IDEA, WebStorm, PyCharm, GoLand, Rider, …).
## Usage
1. Run the T3 Code desktop app, or t3 serve, so the server is listening on port 3773.
2. Open the T3 Code tool window on the right edge.
3. The first time, press Pair in the gear menu. The plugin runs t3 pair, loads the pairing
URL, and the browser keeps the session from then on.
Settings live under Settings, Tools, T3 Code: server URL, path to the t3 CLI, pairing TTL,
health-check timing and diagnostic logging.
### IntelliJ 2026.2 and out-of-process JCEF
2026.2 runs embedded Chromium in a separate cefserver process by default. A bug in the
JCEF client (JBR-10027) makes that process exit
about two minutes after the first browser is created, which blanks every embedded browser in the
IDE (this plugin, Markdown preview, and so on). The plugin detects the situation and offers
Switch and Restart IDE, which sets the registry key
ide.browser.jcef.out-of-process.enabled to false. You can do the same by hand from
Help, Find Action, Registry.