From rough idea to production code — automatically.
Fusion is an open-source orchestrator for autonomous AI agents and full agent companies — multi-model, multi-node, and compatible with the tools and agents you already use. Teams spec, plan, ship, and review code in isolated git worktrees across every machine you own. One board. Controlled from anywhere.
Zero install — runs straight from npm. Or: curl -fsSL https://runfusion.ai/install.sh | sh · brew install runfusion/fusion/fusion
In seconds.
Every step.
Execute. Review.
Your entire dev environment.
On a single pane of glass.
Tasks, agents, missions, git, files, worktrees — with any model, local or cloud, across every device you own. Shared state everywhere. All in one place.
Any model. Local or cloud.
Anthropic, OpenAI, Ollama, Hermes — or anything Pi-compatible. Pick per task, per project, per lane.
Multi-node mesh.
Laptop, Mac mini, Linux server, cloud VM, phone. All connected. Settings, missions, and board state stay in sync — shard work across the nodes you choose.
Sophisticated planning.
Triage turns a rough idea into a PROMPT.md spec with acceptance criteria before a single line of code is written.
Verification and review.
Plan → review → execute → review. Pre-merge and post-merge gates: docs, QA, security, perf, accessibility.
Auto-merge when clean.
Passing every gate? Fusion squash-merges and moves on. History stays linear. You stay out of the weeds.
Missions.
Hierarchical work — Mission → Milestone → Slice → Feature → Task — with autopilot progress tracking across hundreds of tasks.
What Fusion does
// core capabilitiesAutomatic task specification
Describe a task in plain language. Triage agents turn it into a PROMPT.md spec with acceptance criteria.
Plan → review → execute → review
Every step is planned, reviewed, executed, and reviewed again before Fusion moves on. No runaway agents.
Steer agents mid-flight
Jump into an active task and nudge direction, tighten constraints, pause, or re-prompt. Agents read the new guidance and pick up where you pointed them — no restart, no lost context.
Git worktree isolation
Each task runs in its own branch and worktree. Concurrent tasks never collide; history stays clean.
Git management + diff
Full git UI — branches, worktrees, stashes, remotes — plus side-by-side diffs and staged hunks, all in-app. GitHub issue/PR sync included.
Auto-merge + conflict resolution
Passing every gate? Fusion squash-merges for you. Conflicts? Agents resolve them in isolation before main ever sees them.
Multi-node orchestration
Coordinate distributed agents across machines with mesh networking. Run headless, remote, or on LAN.
Mission manager
Plan large work hierarchically — Mission → Milestone → Slice → Feature → Task — with autopilot progress tracking.
Workflow steps
Pre-merge and post-merge quality gates: docs, QA, security, performance, accessibility, UX. Configurable per project.
Per-task model overrides
Five independent model lanes — executor, planner, validator, title, and workflow — with global, project, and task-level overrides.
Documentation system
Auto-generated project docs, changelogs, and task-level runbooks. Agents keep them current as code ships — no stale READMEs.
Queryable memory (qmd)
Persistent, markdown-based memory every agent can read and write. Context survives sessions, devices, and teammates.
Inter-agent chat
Mailbox messaging between agents. Delegate, clarify, coordinate. Your CEO asks your CMO asks your engineer — the team talks.
Agent performance reviews
After each task, agents reflect on their own output. AGENTS.md updates with sharper prompts and new skills. Every run teaches the next.
Skills + company import
npx companies.sh add — bring any agent-company package, role, or skill pack into Fusion with one command. Same format as Paperclip.
Plugin system
Custom workflows, quality gates, tool hooks. Every Pi extension works out of the box, plus Fusion-specific plugins for project hooks.
Automations + routines
Cron-based routines for shell commands or AI workflows. Global and project-scoped, webhook- or manual-triggered.
Every step. Planned, reviewed, shipped.
Each task flows through five states. Agents handle specification, planning, execution, and review — with configurable quality gates before merge.
The spec writes itself — after
the right questions.
Planning mode doesn't guess. The AI proposes structured choices, you pick the path, and Fusion drafts a PROMPT.md with concrete acceptance criteria — before the executor agent touches a line of code.
prefers-color-schemeSee every step, before the merge
Each task card shows live status, per-step diffs, and reviewer notes. Agents pause for review at every configured gate — nothing ships without a signed-off step.
Parallel tasks. Zero conflicts.
Fusion tracks the files each agent touches and the dependencies between tasks. Parallel work stays isolated in its own worktree; dependent tasks auto-rebase in the right order. Agents never fight over the same file.
Import a team.
Run it autonomously for weeks.
Hire agents. Give them goals. Fusion plans, builds, reviews, and ships — with your agents talking to each other, reflecting on their work, and sharpening themselves between runs. Hands-on when you want the wheel.
$ npx companies.sh add paperclipai/companies/gstack
Fusion speaks the same AGENTS.md format as Paperclip. Import any pre-built team — 440+ agents across 16 companies — or bring your own. Roles, org charts, and skills map directly to Fusion agents.
Autonomous for weeks.
Missions run continuously. Agents pick up the next task without prompting. Long-horizon work — not single-shot commands — with heartbeats, budgets, and auto-pause on anomalies.
Agents that talk to each other.
Inter-agent mailbox messaging. The CEO asks the CMO for a launch plan. The Engineer picks up the tickets. Agents delegate, clarify, and coordinate — the way a real team would.
Self-improving between runs.
After each task, agents reflect on what worked. Their AGENTS.md updates with sharper prompts, new skills, and refined heuristics. Every run makes the next one better.
Nodes find each other. Automatically.
Auto-discovery across LAN or cloud mesh. Shard work across nodes — route tasks to the machines you want running them — while settings, missions, and board state stay in sync everywhere.
Plugins for anything.
Custom workflows, quality gates, tool integrations. Fusion exposes the same extension surface as Pi. Every Pi extension works — plus Fusion-specific plugins for project-level hooks.
Fusion + Paperclip. Together.
Run your company in Paperclip's control plane. Run the hands-on dev work in Fusion. Same agent format, same companies, same skills — one npx command apart. Use whichever surface fits the moment.
Paperclip is the human control plane for AI labor.
Fusion is the dev board for the hands-on moments.
Same company format. Same agents. Same skills. Use the surface that fits — or both. They're designed to play together.
Built on top of Pi. Compatible with the tools you already use.
// the stackFusion stands on open tools we love. Every Pi extension works out of the box. Hermes and Paperclip both ship as first-class agent-provider plugins — route any workspace to whichever fits the task. And any Paperclip agent-company imports with a single command.
Fusion is built on top of Pi — the minimal, extensible coding-agent CLI. Every Pi extension works inside of Fusion.
Visit pi.dev →The open-source autonomous agent from Nous Research. Install the Hermes agent-provider plugin and route any workspace to Hermes for long-running, context-growing work.
Learn about Hermes →The human control plane for AI labor. Install the Paperclip agent-provider plugin to use Paperclip as a runner inside Fusion, or import Agent Companies directly — same format, same skills.
Visit paperclip.ing →Under the hood
// technical capabilities- Multi-provider AI (Anthropic, OpenAI, Ollama)
- Test gate enforcement before merge
- Inter-agent mailbox messaging
- Multi-project central registry
- Docker + headless deployment
- Desktop and mobile apps with auto-updates
- 54 color themes, dark/light modes
- Plugin system for custom workflows
- File browser with syntax highlighting
- Onboarding wizard for first-run setup
Desktop, mobile, web — all synced.
Open source. MIT licensed.
Install it in seconds. Setup, docs, and latest releases live on GitHub.
Or curl -fsSL https://runfusion.ai/install.sh | sh · brew install runfusion/fusion/fusion. View on npm ↗.