Discover the actual primitives first: pnpm world help, pnpm world list, then inspect the requested script in worlds/ and its options in worlds/lib/. A preset's restrictions are not restrictions of the generic world CLI. For another composition, inspect packages/world/src/index.ts and evals/packages/env/src/index.ts before declaring it unsupported; reuse the existing provisioning, runtime launch and hold primitives, not another framework.
app-web: configurable source app plus the existing isolated headless server, locally or on an owned private Daytona sandbox. This is not Den's web UI and not the Cloud-off seed.appWeb test fixture. No Den or activation is seeded.
preview-den: signup, team administration, onboarding, connectors, policies.
preview-desktop: real Electron plus its own Den; workspaces, chat and native app interactions. This is Linux Electron, not a macOS/Windows parity check.

For the isolated preview-den/preview-desktop presets, choose --scenario fresh for signup/first use, team for an owner with Notion and Linear available (individual accounts remain unconnected), restricted for that team with the API's canonical restricted policy values, or workspace for a signed-in desktop workspace without pre-added tools. Fresh desktop creates its local workspace but does not sign into Den. No model credentials are seeded. Do not describe these fixtures as capable of live model/provider requests.

Use --scenario blank --release <x.y.z> --distribution <name> to preview exact published Linux x64 tarball bytes with a completely isolated, unseeded profile. Supported distributions are public, cloud, and enterprise; other platforms, architectures, package formats, prereleases, and mutable/latest versions are not supported. The installer resolves the exact v<x.y.z> GitHub release asset and verifies its API-published SHA-256 digest before extraction.

Start and open

For the configurable app-web script, use a reviewed full pushed SHA on Daytona:

pnpm world up app-web --place local --stage pr-1234
pnpm world up app-web --place daytona --stage pr-1234 --detach --timeout 600000 -- --ref <full-pushed-sha>
pnpm world outputs app-web --stage pr-1234 --reveal
pnpm world down app-web --stage pr-1234

An existing Den proxy is an explicit, nonsecret environment selection, not a --cloud mode. Set values in the caller and select each key with repeatable generic --env KEY before the script-argument separator:

OPENWORK_DEV_HEADLESS_WEB_DEN_PROXY=1 \
OPENWORK_DEV_DEN_PROXY_TARGET=https://app.openworklabs.com \
pnpm world up app-web --place daytona --stage pr-1234 --detach --timeout 600000 \
  --env OPENWORK_DEV_HEADLESS_WEB_DEN_PROXY --env OPENWORK_DEV_DEN_PROXY_TARGET \
  -- --ref <full-pushed-sha>

Without those selections app-web ignores ambient proxy settings and stays Cloud-off. Only these two app keys are accepted; the target must be a nonsecret HTTP(S) origin, selected together with an enabled proxy. Remote app-web initially allows only https://app.openworklabs.com; other targets fail before provisioning. Local app-web allows custom HTTP(S) origins, including loopback. Direct script execution without the CLI selection marker stays Cloud-off. Generic invocation identity fingerprints the selected nonsecret values before adoption; changing a key, value, placement or script argument requires a new stage or explicit down. Never pass provider credentials, host/client tokens, personal profiles, or shared secrets volumes. There is no --cloud flag. The CLI rejects credential-like environment key names. Local invocation identity also hashes Git HEAD, status, tracked diffs and untracked file names/content; source changes require a new stage or down before up, across local worlds.

The app-web webUrl is a secret, port-bound signed hostname. Reveal it only in a private terminal and open it directly; never put it in evidence or PR text. Loopback runtimeWebUrl/runtimeOpenworkUrl are process diagnostics, not human browser links. Source SHA and placement are explicit outputs. Private HTTP, assets and WebSocket access must pass the launch checks; failures delete the owned sandbox, never fall back to public exposure. The source dev proxy preserves client bearer auth and never injects host auth. Builds and production preview servers do not enable this proxy. Checked-out source receives only the non-secret preview host suffix for Vite allowedHosts, never the signed origin. HMR derives its host and protocol from the browser location; /api/openwork resolves against that same origin in the browser. Signed URLs stay in the trusted launcher, witness and private outputs.

Do not claim sign-in is verified. Production handoff rules are unchanged and arbitrary preview-origin auto-return is not approved. The existing app sign-in surface has Paste sign-in code; if the existing Den flow supplies a one-time code, paste it directly there. Do not fabricate activation/bootstrap state. App-web defaults to two hours from readiness; optionally pass --lifetime <10-1430> after --. Its signed URL is issued by the trusted launcher before runtime launch, with the lifetime plus a ten-minute startup buffer (within Daytona's 24-hour maximum). Startup exceeding that buffer fails closed. expires is the authoritative world deadline from readiness; previewExpires is the conservative URL deadline from issuance. The URL credential can outlive the world timer, but sandbox deletion invalidates access. World expiry or down tears down the owned runtime and sandbox while the owning driver is running. Always explicitly stop when finished. Abrupt driver crashes can leave a sandbox behind: ledger ownership is not authenticated, so no Daytona ledger reaper is registered. Manual cleanup must independently verify ownership before deleting a sandbox. The preset update helper below does not update app-web; use a new stage on the next reviewed SHA instead.

Daytona documents signed hosts as {port}-{token}.{proxyDomain}, not sandbox-ID hosts (https://www.daytona.io/docs/en/preview/). The launcher checks structured private sandbox info (matching ID, public: false) and its toolboxProxyUrl (https://{proxyDomain}/toolbox) before issuing the signed URL; unsupported info formats fail closed. It rejects standard sandbox UUID hosts and mismatched domains. The opaque signed token cannot prove sandbox identity by hostname alone; issuance is scoped to the verified sandbox ID.

The following scenario/ref and update instructions concern the isolated presets.

Use a unique stage such as pr-1234 to keep previews separate. First inspect pnpm world list and pnpm world outputs <world> --stage <stage> --json. An existing matching world should be reopened, not recreated. Compare its recorded scenario and ref before adopting it. A stage is not a git ref.

Use reviewed repository code: previews execute that ref’s build scripts. Do not load production credentials or attach shared secrets volumes. Push the intended commit and use its full 40-character SHA so Daytona can fetch it. When OPENWORK_EVAL_REF is omitted, launch resolves remote origin/dev once to a full SHA, prints it, and records it in the world outputs. This assumes dev is the reviewed baseline. Explicit launch refs and update refs still reject mutable branch names. To preview a specific commit:

OPENWORK_EVAL_REF=<pushed-sha> infisical run --silent --env dev -- pnpm world up preview-den --stage pr-1234 --place daytona --detach --timeout 600000 -- --scenario fresh --lifetime 120

Substitute preview-desktop and the desired scenario as needed. The existing Daytona snapshots handle dependencies. A cold build takes minutes; reopening a ready world is quick. Never promise seconds for an unmeasured cold boot.

For an immutable published desktop preview, run:

pnpm world up preview-desktop --stage pr-1234 --place daytona --detach --timeout 600000 -- --release 0.18.44 --distribution enterprise --scenario blank

OPENWORK_EVAL_REF pins only the independently provisioned Den source; omit it to use the current remote dev commit, independently of the desktop version. The world driver and release installer run from the local checkout's HEAD, and the desktop sandbox uses the snapshot's inherited display/browser helpers. --release selects desktop bytes; none of these identities falls back to another. Release sandboxes do not mount shared secrets and do not run a source checkout, pnpm install, Electron source launch, or Vite. Their viewer, startup observation, release digest, Den URLs, log/profile paths, relaunch shortcut, browser shortcut, and protocol handler are reported as outputs. A crashed or unresponsive app is retained for inspection and is not reported as healthy; CDP is output only when it actually responded.

Read the resulting world outputs. Open preview with Codex's open_in_codex browser target when available; do not launch the operating system browser. Den opens directly; desktop opens the noVNC viewer with automatic connection, fit-to-panel scaling and reconnect enabled. The viewer toolbar includes clipboard controls. Keep denWeb available for testing both surfaces. If this agent has no embedded-browser opening tool, give the preview link.

For phone web layouts, use the browser tool's viewport controls if available; otherwise use the preview's responsive browser tools. Do not call a resized Electron viewer a mobile app preview.

Wait for world readiness and verify the preview responds before reporting it ready. If testing behavior, follow run-tests; a manually booted world is not a passing test. Do not print secret outputs or put them in a PR. Test account passwords are masked; read the owner-only receipt privately when signing in. For seeded Den scenarios, use the available browser controls to sign in with that test account before handing the preview to the user. Leave fresh Den at signup. The desktop team/workspace scenarios already sign in automatically. Mail stays in this world's development outbox; never send real invitations.

Update without losing progress

For frontend-only changes, push the new commit and run:

pnpm exec python3 .opencode/skills/preview-my-work/scripts/update-preview.py preview-den --stage pr-1234 --ref <pushed-sha>

For preview-desktop, the helper updates both Den web and the desktop renderer. It preserves the Den database, accounts, Electron process and profile. Desktop renderer updates use the existing Vite hot reload; reload the viewer/app if needed. Verify the changed screen before claiming the update is visible.

The update helper rejects published release previews. Stop that exact stage and launch a new stage/version instead; changing source cannot change published desktop bytes.

The helper deliberately does not restart Den API, migrate data, or restart Electron main/preload. For those changes, create a new stage on the new ref and explain that it is a fresh preview. Do not silently reset a working preview.

Reset, lifetime and stop

“Start over” means stop this exact world/stage, then repeat its launch command. This deletes that preview's data. For a comparison, use another stage instead.

pnpm world down preview-den --stage pr-1234

The default lifetime is two hours from readiness, not an idle timer. Use --lifetime 0 only when the user asks to keep it until explicitly stopped; otherwise accept 1–1440 minutes. The world process owns orderly teardown on expiry or down; preview provisioning disables Daytona's separate idle timer for both the Den and desktop sandboxes. An abruptly killed driver cannot run that cleanup. Use only the exact denSandbox and desktopSandbox IDs recorded in the owner-only outputs to inspect or remove leftovers; never delete by broad name patterns.

world up compares recipe and invocation identity before adopting a live stage. Script arguments, placement, and explicitly selected environment values must match. Still inspect recorded scenario, Den ref, release version, distribution, and digest: implicit preset defaults such as a moving remote dev ref are not a request to update an existing world. Use a new stage or explicitly down/reset; never treat adoption as an update.

Report the preview link, tested ref/scenario, expiry, and any actual limitation. Keep infrastructure IDs and startup logs out of the user-facing walkthrough.

preview-my-work

Preview my work

Choose a preview