dev

name	dev
compatibility	Claude Code 2.1.183+
description	One-command dev loop boot. Spins up portless (named HTTPS subdomain), emulate (stateful API mocks), the project's dev server, and an agent-browser session — all using the current git branch as the namespace key. Replaces the 4-terminal manual setup with a single `/ork:dev` invocation. Use when starting a new feature branch, switching worktrees, or returning to a project after a break. Skip silently when prerequisite binaries (portless, emulate, agent-browser) are missing — emits install hints.
argument-hint	[start|stop|status] [--share|--funnel|--live H]
tags	["dev-loop","portless","emulate","agent-browser","vercel-labs","lab-stack","m125","m127"]
version	1.1.0
author	OrchestKit
user-invocable	true
disable-model-invocation	false
complexity	medium
context	inherit
persuasion-type	guidance
metadata	{"category":"devops","milestone":"M127","upstream-packages":["portless","emulate","agent-browser","tailscale"]}

/ork:dev — Lab-Stack Boot

One command boots the four moving parts of a Vercel-Labs-flavored dev loop:

1. portless → named HTTPS https://<branch>.localhost (no port collisions across worktrees)
2. emulate → stateful API emulators on the same origin via @emulators/adapter-next
3. dev server → pnpm dev / npm run dev / yarn dev (auto-detected)
4. agent-browser → pre-warmed session named after the branch

State lives in .claude/state/dev-stack.json. Teardown via /ork:dev stop reads the PIDs and signals SIGTERM in reverse boot order.

Paired with /ork:expect: the agent-browser session that /ork:dev warms is the same one /ork:expect (and the M125 #2 auto-trigger) attach to — no second startup latency on the first UI test.

When to invoke

Situation	Command
Start work on a new branch	/ork:dev
Resume after a session break	/ork:dev (idempotent — skips already-live processes)
Tear down before deleting branch	/ork:dev stop
Inspect state	/ork:dev status
Share preview with stakeholder	/ork:dev --share (tailnet) or /ork:dev --funnel (public)
Time-boxed live demo	/ork:dev --live 4 (public funnel, 4-hour expiry)

Resuming a backgrounded dev session (CC 2.1.144+): Sessions started via claude --bg now appear in /resume alongside interactive ones, marked bg — use /resume as the direct recovery path after a crash or session end instead of navigating the agent view.

Background shell sessions (CC 2.1.154+): In claude agents, type ! <command> to run a shell command as a backgrounded session you can attach to and detach from — also available as claude --bg --exec '<command>'. Useful for long dev-loop processes (watchers, builds, servers) you want to monitor without holding a terminal.

Modes (M127)

Flag	Wraps	Reach	Tailscale CLI
(none)	portless <slug> <pkg-mgr> run dev	https://<branch>.localhost only	not required
--share	portless --tailscale ...	tailnet members on https://*.ts.net	required
--funnel	portless --funnel ...	public on the internet	required
--live N	portless --funnel ... + N-hour expiry	public, tracked in live-demos.jsonl	required

Tailscale is optional — required only behind --share/--funnel/--live. Default /ork:dev is unchanged for users who don't share.

When turbo.json or package.json workspaces is detected (#1562), the boot uses bare portless (zero-config) which auto-discovers each workspace's dev script and assigns subdomains via the task graph. State file shows mode: "monorepo"; list subdomains via portless list or /ork:dev status.

Boot sequence

portless is a wrapper, not a sidecar — portless <slug> <pkg-mgr> run dev is one fused command that owns the dev server's lifecycle. boot.sh tracks the wrapper PID; stop.sh walks its process tree to clean up children.

0. Detect package manager      pnpm > yarn > bun > npm   (lockfile-based)
1. Resolve subdomain slug      <branch> → lower → / to - → DNS-safe → ≤63 chars
2. portless proxy start         (idempotent — skipped if `portless list` already responds)
3. emulate --seed <yaml>        (sidecar, optional — only if emulate.config.yaml exists)
4. portless <slug> <pkg-mgr> run dev   (FUSED — wrapper owns dev server's lifecycle)
5. portless get <slug>          (poll up to 30s for the route to register)
6. wait-on <baseUrl>            (poll up to 30s for the dev server through the proxy)
7. AGENT_BROWSER_SESSION=<slug> agent-browser open <baseUrl>   (warm + register session)
8. atomic state write           (.claude/state/dev-stack.json via jq + temp + mv)
9. print summary

The full annotated walkthrough: references/boot-sequence.md.

State file shape

{
  "bootedAt": "2026-04-27T12:34:56Z",
  "branch": "feat/m125-lane-b",
  "subdomain": "feat-m125-lane-b.localhost",
  "baseUrl": "https://feat-m125-lane-b.localhost",
  "mode": "single",
  "processes": {
    "portlessWrapper": {
      "pid": 86104,
      "command": "portless feat-m125-lane-b pnpm run dev"
    },
    "agentBrowser": { "sessionName": "feat-m125-lane-b" },
    "emulate":      { "pid": 86200, "command": "emulate --seed emulate.config.yaml" }
  },
  "emulators": ["github", "stripe"],
  "share": null,
  "notes": "portless proxy daemon is shared and not tracked here — stop.sh leaves it running."
}

When --share / --funnel / --live is used (M127 #1561 / #1565), share becomes:

"share": {
  "mode": "tailscale",
  "tailscaleUrl": "https://app.your-tailnet.ts.net",
  "expiresAt": "2026-05-03T20:00:00Z"
}

mode is "single" (default) or "monorepo" (when turbo.json/workspaces detected). Note portlessWrapper (not portless + devServer) — portless owns the dev server. Full schema: references/state-schema.md.

Auto-surfaced hints (M127)

When /ork:dev boots, it inspects package.json and emits hints:

• @json-render/* detected (#1560) → prints the devtools adapter import line so the inspector panel (Spec / State / Actions / Stream / Catalog / Pick) can be enabled in dev. Tree-shakes from production builds.
• @clerk/* detected (#1563) → if clerk is in emulate.config.yaml, prints the mock login URL (http://localhost:4012); otherwise warns to run /ork:emulate-seed --auto.

Prerequisites + graceful no-op

$ /ork:dev
✓ portless     found
✓ agent-browser     found
✓ jq     found
[1] slug       feat-m125-lane-b

# OR with a missing prereq:
✗ portless not found.   Install: npm i -g portless

Skipping boot — install missing tools and re-run.

portless, agent-browser, and jq are required. emulate is optional — required only if emulate.config.yaml exists. The boot is all-or-nothing on the required set; with no emulate config the boot proceeds without emulators.

CI=1 short-circuits the boot (exits 0 immediately).

Status + teardown

$ /ork:dev status
ork:dev — feat/m125-lane-b
  ✓ portlessWrapper    portless feat-m125-lane-b pnpm run dev
  ✓ agentBrowser       feat-m125-lane-b
  base url:  https://feat-m125-lane-b.localhost
  booted:    2026-04-27T19:36:54Z
  portless:  route registered ✓

$ /ork:dev stop
ork:dev — sending SIGTERM in reverse boot order…
  ✓ agent-browser session "feat-m125-lane-b" closed
  ✓ portless wrapper (pid 86104) + 21 descendant(s) stopped
Cleared .claude/state/dev-stack.json

Note: portless proxy daemon left running (shared). Run `portless proxy stop` if you really mean to stop the daemon.

Stop walks the wrapper's process tree (pgrep -P recursively) and SIGTERMs descendants leaves-first because portless doesn't always propagate signals cleanly. The portless proxy daemon itself is shared infrastructure and is never killed by /ork:dev stop.

Worktree behavior

Each git worktree gets its own subdomain — feat-foo.localhost and feat-bar.localhost coexist on the same machine. The state file lives under each worktree's .claude/state/, so /ork:dev from one worktree doesn't see the other's processes.

Idempotency

Re-running /ork:dev while the stack is already live is a no-op:

$ /ork:dev
ork:dev — feat/m125-lane-b already running.
  https://feat-m125-lane-b.localhost  (uptime 2h 14m)
Run /ork:dev stop to tear down, or /ork:dev status for detail.

Liveness probe: process.kill(pid, 0) against each tracked PID. If any are dead, the skill prints which ones and offers to clean up state and reboot.

How agent-browser composes

The session name equals the subdomain — agent-browser commands targeting that session don't need a --session flag if it's the only one connected:

agent-browser open "https://feat-m125-lane-b.localhost/dashboard"
# implicit session = "feat-m125-lane-b" because it's the only one

/ork:expect (M125 #2) reads the dev-stack state file and reuses this same session — no second handshake.

Integration with /ork:expect (M125 #2)

When auto-expect fires after a .tsx edit, it:

1. Reads .claude/state/dev-stack.json to find the agent-browser session and base URL.
2. Computes the affected route from the file path (app/dashboard/page.tsx → /dashboard).
3. Drives agent-browser against <baseUrl><route> using the live session.
4. Records the ARIA snapshot to memory keyed by (route, parentCommit) (M125 #6).

If the dev stack isn't live, auto-expect skips silently — /ork:dev is the prerequisite, not a hard dep.

When NOT to use

• CI — set CI=1; the skill exits 0 without booting.
• Production deploys — never; this is dev-loop only.
• Non-Vercel-Labs stacks — falls back to install hints; you can still run the underlying tools manually.
• Inside a tmux -CC session — agent-browser dashboard incompatible with iTerm2 tmux integration.

Scripts

Script	What it does
scripts/boot.sh	All-or-nothing prereq check, then 9-step boot. Idempotent (no-ops if already live). Honors CI=1 to skip in CI.
scripts/stop.sh	SIGTERM in reverse boot order with 5-second SIGKILL fallback. Removes state file last.
scripts/status.sh	Pretty status. --quiet for liveness-only (exit 0 live, 1 down). Used by boot for idempotency.

/ork:dev invokes scripts/boot.sh; stop → stop.sh; status → status.sh. The shell scripts are the source of truth.

References

File	Purpose
references/boot-sequence.md	Step-by-step boot annotated with commands
references/state-schema.md	Full JSON shape + field semantics

Rules

Rule	Impact	When it applies
rules/lab-stack-prerequisites.md	CRITICAL	Every boot
rules/branch-named-subdomain.md	HIGH	Subdomain resolution
rules/idempotent-boot.md	HIGH	Re-running while live
rules/teardown-order.md	MEDIUM	stop invocations

Running unattended with /goal

Set a completion condition with /goal (CC 2.1.139+) and this skill will keep working across turns until the condition is met. Works in interactive, -p, and Remote Control. The overlay panel shows live elapsed / turns / tokens.

Example completion condition for this skill:

/goal until services.running == 4

Stops when: all 4 dev-loop services (portless + emulate + dev-server + agent-browser) report healthy on their respective ports/sockets. Compatible with claude.ai Remote Control runs.

Related skills

• /ork:expect — diff-aware browser tests; reuses the agent-browser session this skill warms
• /ork:emulate-seed — generates the emulator config that step 3 consumes
• portless (skill) — underlying tool docs
• browser-tools (skill) — agent-browser command reference