Fire Code

Every codebase you work on, in one Windows window — each with its own Light Code agent, all working at the same time.

• A sidebar of codebases. Add any folder on your machine. Switch with a click, Ctrl+1…9, or Ctrl+K and a few letters. Hide the sidebar with Ctrl+B for more room; a slim strip keeps every agent's status in view.
• Agents keep working in the background. Each codebase runs in its own process, so a long task in one never slows another, and switching away pauses nothing.
• Your existing settings. Point a codebase at the Light Code config it already has — the VS Code extension's, or the Node host's that IntelliJ and PyCharm use — and its providers, MCP servers, search connections and project settings apply in place. Or copy one, or start fresh.
• Windows notifications when a background agent finishes, needs your approval, or sends one with notify — including scheduled runs. Click one to jump to that chat.
• JupyterHub folders: Add codebase → On JupyterHub. Fast local search over a copy; edits saved back to the hub; code runs on the hub with hub_run, so hub-only libraries work.
• See who is waiting for you: a "!" on any codebase whose agent needs your approval, an answer or a form.
• Refer to other codebases: @payments-api:src/app.py, or just @ and pick one; every agent knows the others.
• Git changes at a glance: +new ~modified −deleted on each codebase that git manages.
• Schedules run on time even for sleeping codebases: Fire Code wakes a codebase just before its job is due and lets it sleep again afterwards.
• Idle codebases sleep after a while to give memory back (never while working, waiting for you, or holding schedules), and wake in a moment when clicked.
• Reach beyond the codebase: agents read any drive or shared folder, and may write anywhere — asking you every time they write outside the codebase. Keys, passwords and Windows folders stay off-limits.
• Fast, parallel file tools written in Rust: find files across whole drives and shares, summarise a folder, spot duplicates, read many files at once, and work through huge logs and CSV or Excel files part by part — search, read any window, filter, group and total millions of rows in about a second.
• Copy, move and zip whole folders on every core — always asking first, with exactly what will be copied, moved, replaced or extracted.
• Several chats per codebase, each its own agent, safe to run side by side.
• Reports in Fire Code: Markdown and HTML reports from scheduled runs open in Fire Code's own viewer.
• One environment for every agent: a startup script (.cmd, .bat or .ps1), folders to put on PATH, and variables — plain values or saved credentials.
• Everything Light Code does: the same tools, MCP, Python tools, skills, Excel and Outlook, Confluence, Jira, Bitbucket, Jenkins, AutoSys, search and schedules — it is the same agent.

Install

npm i -g @chosengeneration/fire-code
fire-code

Used Sun Code or Sun Light Code before? Fire Code is its new name. Your codebases, chats and credentials move across by themselves the first time Fire Code starts; then remove the old package with npm uninstall -g @chosengeneration/sun-light-code.

Windows 10 or 11 (x64) and Node.js 18 or newer. The package is prebuilt: it has no install scripts and no dependencies, so installing only copies files — nothing is compiled and nothing is downloaded, which is what makes it install cleanly on a locked-down office machine. The window uses Microsoft Edge WebView2, which comes with Windows 11 (and with Edge on Windows 10).

Settings and keys

When you add a codebase you choose where its Light Code settings come from:

A folder's own .lightcode/config.json is always used, whichever you choose.

API keys and passwords are not in config files. The VS Code extension keeps them in VS Code's encrypted storage, which another program cannot read, so enter each once in Fire Code — it then shares them with every codebase. Fire Code keeps them in %LOCALAPPDATA%\fire-code\secrets.json, readable by your Windows account only, not in an OS keychain; it says so rather than implying otherwise.

What it connects to

Nothing on its own. Like Light Code, Fire Code has no telemetry, no update checks and no default endpoints: the only hosts contacted are the ones you configure. Each codebase's agent runs on 127.0.0.1 behind a one-time token, and is stopped — with every process it started — when Fire Code closes.

Theme

Settings (Ctrl+,) chooses light, dark or system and an accent colour. Every chat follows them, and so do the window and taskbar icons; each chat keeps its own role colours.

Building it

The source is in apps/sun of the Light Code repository, and Fire Code's Settings can export the whole repository as a zip that builds offline. You need Rust 1.86+ (MSVC) and pnpm; then node apps/sun/scripts/build.mjs.

MIT licensed.