Files
fusion/packages/cli
gsxdsm 9e4a0817db feat: restart the development engine on source changes (#3329)
## Summary

Add an opt-in source-development loop that restarts the dashboard and
engine when runtime TypeScript or JSON changes. Use `pnpm dev:watch`;
`pnpm dev:hmr` now combines Vite UI HMR with the same supervised
API/engine restart path.

The watcher filters tests, fixtures, generated declarations, build
output, and task state. It coalesces bursts with a two-second maximum
wait, waits for the child to acknowledge its IPC listener, and rebuilds
runtime dist artifacts before a source-triggered respawn.

## Safety model

- Close scheduler, triage, heartbeat, mission, routine, self-healing,
and merge admission before checking for active work.
- Let already-running agents reach a safe boundary; do not mutate
durable pause settings.
- Enter the existing graceful exit-code-86 shutdown and supervised
respawn path.
- Retry failed liveness reads and declined restart requests instead of
dropping the pending change.
- Keep ordinary `pnpm dev` behavior unchanged; inherited watch state
does not break nested non-dashboard development commands.

A development restart intentionally replaces the dashboard process, so
transient dashboard connections and project dev-server children
reconnect or restart with it. Agent work is the protected boundary.

## Validation

- `pnpm lint`
- `pnpm test:gate` (753 tests passed across engine, core, PostgreSQL
gate, and CI-shape suites)
- Focused CLI watcher/restart/supervision suites: 40 tests passed
- Focused engine drain/manager suites: 52 tests passed
- `pnpm --filter @runfusion/fusion typecheck`
- `pnpm --filter @fusion/engine typecheck`
- `pnpm verify:fast` (13 steps passed, including CLI build and real
health boot smoke)
- Manual unsupported-command probe confirms explicit `--watch` fails
clearly outside the dashboard command

## Post-Deploy Monitoring & Validation

- Watch for `[fusion:dev] source changed`, `source restart deferred`,
`active work drained`, and `restart requested` logs during the first
watched development session.
- Healthy behavior is one exit-86 respawn per edit batch, no interrupted
active agents, refreshed dist artifacts, and a healthy dashboard after
respawn.
- Investigate repeated restart loops, watcher attachment warnings,
declined restart retries, or liveness-read failures.
- Immediate mitigation is to use ordinary `pnpm dev` without `--watch`;
no production runtime behavior or durable setting needs rollback.
- Validation owner: Fusion maintainers during the first source edit
after merge.

---

[![Compound
Engineering](https://img.shields.io/badge/Built_with-Compound_Engineering-6366f1)](https://github.com/EveryInc/compound-engineering-plugin)


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Added `pnpm dev:watch` to automatically restart development runtime
processes when source files change.
* Development restarts now wait for active work to finish, preventing
new work from starting during the transition.
* Enhanced `pnpm dev:hmr` with graceful runtime source restarts while
keeping the dashboard available.
  * Rapid source changes are grouped to avoid unnecessary restarts.

* **Documentation**
* Updated development setup and contribution guides with the new watch
workflow.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-08-04 08:57:30 -07:00
..
2026-08-04 01:59:50 -07:00
2026-08-04 01:59:50 -07:00

Fusion

@runfusion/fusion

From rough idea to production code — automatically.

Multi-node agent orchestrator — tasks, agents, missions, git, files, and worktrees, with any model, local or cloud.

runfusion.ai → · GitHub · Docs


Fusion reel: from rough idea to production code

Install

Zero install, straight from npm:

npx runfusion.ai

Boots the dashboard. Subcommands forward through (npx runfusion.ai task list, etc). Long form: npx @runfusion/fusion dashboard.

One-line installer (macOS & Linux — auto-picks Homebrew, falls back to npm):

curl -fsSL https://runfusion.ai/install.sh | sh

Homebrew (macOS & Linux):

brew install runfusion/fusion/fusion

Fully-qualified install auto-taps and, on Homebrew 6.0+, trusts only this formula. If short-name install fails with “untrusted tap”, run brew trust --formula runfusion/fusion/fusion then brew install fusion.

npm global:

npm install -g @runfusion/fusion
fn dashboard              # or: fusion dashboard

Launch the dashboard

From a shell:

fn dashboard                 # or: fusion dashboard / npx @runfusion/fusion dashboard
fn dashboard --paused        # start with automation paused
fn dashboard --dev           # development-mode dashboard + AI engine
fn dashboard --no-engine     # web UI only, no AI engine

The dashboard gives you:

  • A live kanban board — tasks move through columns automatically as AI works on them
  • Task detail view — generated spec, step-by-step progress, reviewer verdicts, full execution log
  • Dependency-aware scheduling — declare task dependencies or let the engine infer them
  • Auto-merge — on by default; reviewed work squash-merges without you lifting a finger
  • Parallel execution — independent tasks run simultaneously in isolated git worktrees
  • Self-sustaining board — agents may spawn follow-up tasks; the board feeds itself

Your entire dev environment. On a single pane of glass.

Describe a task in plain language. A triage agent reads your project, understands context, and writes a full PROMPT.md spec — steps, file scope, acceptance criteria. Then Fusion plans, reviews, executes, and reviews again, in an isolated git worktree, with a human approval gate wherever you want one.

One board. Controlled from anywhere. Laptop, Mac mini, Linux server, cloud VM, phone — all connected.

Fusion mesh: laptop, Mac mini, Linux server, cloud VM, phone — all synced

Run an agent company

Import a team. Run it autonomously for weeks. 440+ agents across 16 companies, wired for missions, mailboxes, and inter-agent delegation.

npx companies.sh add paperclipai/companies/gstack
Fusion agent company: import a team, run it autonomously for weeks

How it works

You create a task with a rough description. A pipeline of specialized agents takes over.

Specification. A triage agent reads your codebase — file structure, existing patterns, related code — and turns your rough idea into a detailed spec. It breaks the work into discrete steps, identifies which files are in scope, writes acceptance criteria, and assigns a complexity rating that determines how aggressively the work gets reviewed.

Scheduling. Tasks declare dependencies on each other. The scheduler builds a dependency graph and starts work only when upstream tasks are done. Independent tasks run in parallel — each in its own isolated git worktree, so there are no conflicts during execution.

Execution & review. An executor agent works through the spec step by step in the worktree. At each step boundary, a separate reviewer agent, with read-only access, independently evaluates the work. The reviewer can approve (continue), request revisions (fix specific issues), or force a rethink (change the approach entirely). Review depth scales with the task's complexity rating: trivial tasks get light checks, complex tasks get thorough multi-pass review.

Merge. When execution finishes and the reviewer signs off, the task moves to In Review:

  • Direct merge (default) — automatically squash-merges the completed task branch into your current branch with a clean commit.
  • Pull request — automatically creates or links a GitHub PR, waits for reviews/checks, then merges once policy conditions are satisfied.

autoMerge controls whether Fusion performs completion automatically. If disabled, tasks stay in In Review until you finish the merge yourself. For PR-first mode, authenticate GitHub with gh auth login.

Tasks flow through: Triage → Todo → In Progress → In Review → Done.

This execution model is heavily based on Taskplane.


What makes it different

🧠 AI specification Rough idea in, detailed PROMPT.md out — steps, file scope, acceptance criteria.
🔁 Workflow gates Plan → Review → Execute → Review on every step. Block or pass automatically.
🌳 Worktree isolation Each task runs in its own branch and worktree. Parallel tasks. Zero conflicts.
⚡ Smart merge Passing every gate? Fusion squash-merges and moves on.
🛰️ Multi-node mesh Laptop, server, cloud, phone — all synced. Desktop, mobile, web.
🧩 Any model Anthropic, OpenAI, Ollama, and more.
🏢 Agent companies Import pre-built teams — 440+ agents across 16 companies.
📬 Inter-agent messaging Built-in mailbox between agents. Delegate, clarify, coordinate.
🗺️ Missions Hierarchical planning with autopilot and validation contracts.
🔓 Open source. MIT. No vendor lock-in. Run it on your own hardware.

Working from chat

Manage tasks without leaving the conversation:

"Every ten minutes, analyze the server code for logic the client hasn't implemented yet and create tasks. Tasks may spawn additional tasks, so just add enough to keep the board saturated."

"Create a Fusion task to fix the login redirect bug"

"Add a task for dark mode support, it depends on FN-003"

"What's the status of FN-042"

"Attach screenshot.png to FN-007"

"Pause FN-012 — I want to add more context first"

The Fusion extension exposes tools to create tasks, check progress, attach files, and pause or resume automation.


Standalone CLI

See STANDALONE.md for additional installation and usage options.

Optional provider: Factory AI via Droid CLI

@runfusion/fusion now ships a vendored @fusion/droid-cli extension in the published CLI bundle.

To use it:

  1. Install the droid binary and ensure it is on your PATH
  2. Authenticate with Droid CLI (droid auth login)
  3. In Fusion dashboard, go to Settings → Authentication and enable Factory AI — via Droid CLI
  4. Restart Fusion when prompted so the extension is loaded into the runtime

Once enabled, droid-cli models appear in Fusion model selection.

Maintainer note: workspace plugins in published CLI bundles

When CLI or dashboard runtime code imports workspace plugin packages (for example @fusion-plugin-examples/roadmap), those imports must stay statically analyzable and covered by packages/cli/tsup.config.ts noExternal rules so plugin runtime code is inlined into dist/bin.js.

Do not introduce dynamic or variable module specifiers for workspace plugin runtime paths in the published execution path. If a workspace plugin is needed for bundled auto-install, stage a bundled plugin entry (dist/plugins/<id>/bundled.js) rather than copying raw TypeScript source into dist/.

Full documentation

Architecture details, development setup, and contributor info live in the project README.

License

MIT — see LICENSE.