Workcell

Workcell runs coding agents inside a bounded local runtime on Apple Silicon macOS: a dedicated Colima VM plus a hardened container inside that VM. It ships Tier 1 adapters for Codex, Claude Code, GitHub Copilot CLI, and Gemini that seed each provider's native control plane without pretending provider config is the security boundary. Google Antigravity CLI remains a queued fail-closed follow-on; current releases do not support --agent antigravity.

This project is for teams that want local agent velocity without turning the host home directory, keychain, provider state, or local sockets into the trust boundary.

Why Workcell

• keep the runtime boundary explicit: dedicated VM, hardened container, minimal mounts
• keep provider adapters native: one shared boundary, thin provider-specific control-plane mapping
• keep publication on the host: signed commits, signed-range verification, and GitHub publication stay out of Tier 1
• keep verification paths nonroot by default: runtime and validator images default to a named unprivileged workcell user, while repo-mounted validation lanes pass explicit caller UID/GID and isolated writable state, with a synthesized isolated home when the caller UID has no passwd entry in the image
• keep lower-assurance paths visible: development, package mutation, transcripts, and breakglass are labeled instead of implied

How it compares

Approach	Primary boundary	Provider-native control plane	Host-side signed publication	Lower-assurance paths called out
Host-native provider CLI	host user session	yes	no	rarely
Generic container wrapper	container only, often mixed with host state	often partial	varies	often unclear
Workcell	dedicated Colima VM plus hardened container	yes	yes	yes

Project status

• pre-1.0 and still tightening the public contract
• Apple Silicon macOS hosts only today; Linux and Windows are not currently supported as launch hosts
• local host-launched runtime first; cloud-facing paths today are the preview-only remote_vm/aws-ec2-ssm/compat and remote_vm/gcp-vm/compat broker plans, and their live smokes remain certification-only
• CLI surfaces for Codex, Claude, Copilot, and upstream-served Gemini auth modes plus host-side detached session control and inspection commands
• GitHub Copilot CLI uses explicit copilot_github_token staging through reviewed host-side inputs, converts it to a host-mounted token handoff outside mounted provider state, moves it through a transient runtime handoff file, and exports its value as COPILOT_GITHUB_TOKEN only to the managed Copilot child process, with isolated COPILOT_HOME and COPILOT_CACHE_HOME; host gh auth, Copilot provider state (~/.copilot, ~/.config/github-copilot, ~/.cache/github-copilot), keychains, and whole-home state are not safe-path inputs
• Google Antigravity CLI is queued behind the same evidence bar and remains planned/fail-closed until Workcell ships adapter, auth, quickstart, deterministic evidence, and live certification together
• GitHub-hosted CI verifies repo shape, reproducibility, release posture, and secretless runtime behavior
• GitHub-hosted CI verifies bundle install/uninstall and Homebrew install/uninstall on Apple Silicon macos-26 and macos-15 on pushes to main, manual dispatch, and PRs labeled approved-heavy-ci
• the real macOS Colima boundary is still a local operator exercise because GitHub-hosted Linux runners cannot prove it
• the canonical host support boundary lives in policy/host-support-matrix.tsv, and --doctor / --inspect emit matching host and support_matrix_* lines
• Workcell does not yet ship a centralized enterprise policy, inventory, or analytics plane; team rollout today relies on distributing reviewed host-side files

Breaking changes should be called out in CHANGELOG.md and tracked in ROADMAP.md.

Community

• use GitHub Discussions for usage questions, operator workflow notes, and open-ended design conversations
• use GitHub issues for confirmed bugs and concrete feature requests
• use SECURITY.md for security-sensitive reports

See SUPPORT.md, CONTRIBUTING.md, and CITATION.cff for the contributor and operator contract.

Choose your path

Pick the entry point that matches what you need. Each is a short labeled list of links; the full index is in the Docs map below.

• Operators — run Workcell locally: 5-minute path · install options · onboarding and auth · provider quickstarts · command reference · mode map · safe-path expectations
• Enterprise evaluators — assess the assurance model: enterprise evidence baseline · threat model · security invariants · support tiers · enterprise rollout
• Contributors — work on Workcell: repository layout · contributor workflow · agent guidelines · improvement-tracks plan

5-minute path

Install Workcell, create the host-side auth policy, inspect the derived posture, then launch:

./scripts/install.sh
workcell auth init
workcell auth set \
  --agent codex \
  --credential codex_auth \
  --source /Users/example/.config/workcell/codex-auth.json
workcell --agent codex --doctor --workspace /path/to/repo
workcell --agent codex --inspect --workspace /path/to/repo
workcell --agent codex --workspace /path/to/repo

For Copilot, use the provider-specific credential instead of the Codex auth file:

workcell auth set \
  --agent copilot \
  --credential copilot_github_token \
  --source /Users/example/.config/workcell/copilot-github-token.txt
workcell --agent copilot --workspace /path/to/repo

See docs/getting-started.md for the release install path and provider-specific onboarding. For team rollout patterns on today's local-first product, see docs/enterprise-rollout.md. Use policy/host-support-matrix.tsv to interpret the host support boundary that --doctor and --inspect report.

Install

On Apple Silicon macOS, download a tagged release bundle, unpack it, and run the supported installer:

tar -xzf workcell-vX.Y.Z.tar.gz
cd workcell-vX.Y.Z
./scripts/install.sh

./scripts/install.sh installs only the missing required Homebrew formulas (colima, docker, gh, git, go) before it links the launcher.

For the Homebrew formula asset, the source checkout path, and the full host requirements, see docs/install.md.

Command reference

The supported commands at a glance; follow the links for the full behavior and options.

• workcell --agent <name> --workspace /path/to/repo — launch a managed agent session (see the 5-minute path and provider quickstarts).
• --target colima|docker-desktop|aws-ec2-ssm|gcp-vm — select the runtime backend (safe-path expectations).
• --prepare and --prepare-only — pre-build the runtime image before, or instead of, launching (safe-path expectations).
• --doctor, --inspect, and --auth-status — inspect host readiness, a resolved launch plan, and auth posture (onboarding and auth).
• workcell why — explain a credential or configuration decision (onboarding and auth).
• workcell session — manage detached sessions, including workcell session start, workcell session list, and workcell session diff (safe-path expectations).
• workcell publish-pr — the host-side PR publication helper (safe-path expectations).

Docs map

Operator reference

Topic	File
Install and requirements	docs/install.md
Onboarding and auth	docs/onboarding-and-auth.md
Provider quickstarts	docs/provider-quickstarts.md
Mode map	docs/mode-map.md
Safe-path expectations	docs/safe-path-expectations.md
Release posture	docs/release-posture.md

Product and security docs

Topic	File
Getting started	docs/getting-started.md
Support tiers	docs/support-tiers.md
Diagnostics and support matrix	docs/diagnostics-and-support-matrix.md
Security invariants	docs/invariants.md
Threat model	docs/threat-model.md
CI/CD threat model	docs/ci-threat-model.md
OWASP agentic mapping	docs/owasp-agentic-mapping.md
Provider matrix	docs/provider-matrix.md
Provider bootstrap matrix	docs/provider-bootstrap-matrix.md
Adapter control planes	docs/adapter-control-planes.md
Injection policy	docs/injection-policy.md
Validation coverage	docs/validation-scenarios.md
Requirements validation	docs/requirements-validation.md
Scenario gaps	docs/scenario-gaps.md
Use-case coverage	docs/use-case-matrix.md
Session supervisor design	docs/workcell-session-supervisor-design.md
Managed workstation contract	docs/managed-workstation-contract.md
Enterprise evidence baseline	docs/enterprise-evidence-baseline.md
Enterprise rollout	docs/enterprise-rollout.md
Host expansion readiness	docs/host-expansion-readiness.md
AWS EC2 SSM preview	docs/aws-ec2-ssm-preview.md
GCP VM preview	docs/gcp-vm-preview.md
Provenance and signing	docs/provenance.md
GitHub automation	docs/github-workflows.md
Artifact retention policy	docs/retention-policy.md

Project docs

Topic	File
Contributor workflow	CONTRIBUTING.md
Support	SUPPORT.md
Code of conduct	CODE_OF_CONDUCT.md
Governance	GOVERNANCE.md
Maintainers	MAINTAINERS.md
Roadmap	ROADMAP.md
Changelog	CHANGELOG.md
Security reporting	SECURITY.md
Stability and exit-code contract	docs/stability-contract.md
Standards watchlist	docs/standards-watchlist.md

Repository layout

• runtime/: VM and container boundary implementation
• policy/: shared contract layer and hosted-control policy
• adapters/: provider-native baselines for Codex, Claude, Copilot, and Gemini, plus fail-closed Antigravity planning scaffolding
• cmd/: host-side and runtime-side Go entrypoints (the workcell-* binaries)
• internal/: shared Go packages backing the cmd/ binaries
• scripts/: launcher, validation, release, audit, and bootstrap entrypoints
• verify/: invariant-oriented verification material
• man/: workcell.1 manpage
• tests/: scenario manifests and fixtures
• tools/: developer tooling (markdownlint, validator image)
• docs/: user-facing design, quickstarts, install, and release docs
• workflows/: implementation notes such as adapter porting guidance

License

Workcell is licensed under Apache-2.0. See LICENSE.