tloncorp/tlon-apps/verify

Verify tlon-apps UI changes (single-ship recipe)

The full ./start-playwright-dev.sh rig boots 2+ ships (2GB loom each) and can get OOM-killed on low-memory machines mid desk-commit ("Ships process exited unexpectedly with code null"). For UI verification a single ship + one vite server is enough and much lighter.

Capabilities assumed (this is a recipe, not tied to one agent — any agent with these can follow it): a shell (urbit binary, pnpm, curl, lsof), filesystem access to the repo, and a browser-automation tool that can navigate, type/fill inputs, click by selector, evaluate JS in the page, and screenshot. Where noted, use your tool's own verbs for those actions.

Gotchas (hit these before, save the debugging)

• asdf: if the pnpm shim fails with "No version is set for command pnpm",

the pinned Node isn't installed. The repo pins 24.22.1 (.nvmrc and apps/tlon-web/.tool-versions) — run asdf install nodejs 24.22.1, don't override ASDF_NODEJS_VERSION to a different Node: pnpm-workspace.yaml sets engineStrict: true, so installs abort outside the pinned range.

• peru: rube's desk assembly needs peru on PATH (`brew install pipx &&

pipx install peru`). Without it rube dies at "Vendoring desk dependencies".

• Process sandbox: launch the ship and web server as real, long-lived

detached processes. Some agent execution sandboxes kill detached/background processes — if yours does, run these steps with the sandbox disabled.

Recipe

1. Piers + urbit binary live in apps/tlon-web/rube/dist/ after any rube

run (zod/, ten/, urbit_extracted/urbit). If missing, let ./start-playwright-dev.sh run once to download/extract, then kill it.

1. Boot the zod ship (http port 35453 per apps/tlon-web/e2e/shipManifest.json).

First make sure zod's own port/pier isn't already live — deleting a live .vere.lock and booting a second Vere on the same pier corrupts/wedges it. Gate on zod specifically — its port :35453 or a live process on the zod/zod pier. Check both, because a zod daemon that is still booting has created .vere.lock but hasn't bound :35453 yet; a port-only check would then delete a live lock and start a second Vere on the same pier (the exact corruption this guards against). The pier-path match keeps it zod-specific, so another rube ship like ~ten (ten/ten, :38473) is correctly ignored and doesn't make you skip booting zod. The -d flag runs Vere as a detached daemon, so the boot returns and you can proceed: `` cd apps/tlon-web # Note the [r] trick: pgrep -f 'rube/...' would otherwise match the wrapper # shell running this very block (its command line contains the pattern) and # always report "live". [r]ube matches the ship process but not the literal # [r]ube in this shell's argv. if lsof -ti :35453 >/dev/null 2>&1 || pgrep -f '[r]ube/dist/zod/zod' >/dev/null; then echo "zod already live (port :35453 or zod/zod pier process) — reuse it; do NOT delete the lock or boot again." else rm -f rube/dist/zod/zod/.vere.lock ./rube/dist/urbit_extracted/urbit rube/dist/zod/zod -d --http-port 35453 # -d = daemon (detached) fi ``

1. Start the web server. It runs in the foreground and blocks, so launch it as

a long-lived background/detached process (your agent's background-run mechanism, a separate terminal/session, or append &) — otherwise the recipe hangs here and never reaches the browser step: `` cd apps/tlon-web # --strictPort: fail loudly if :3000 is taken instead of silently falling # through to the next free port (which would leave you verifying stale UI at # localhost:3000). If it fails, kill/reuse the existing :3000 server first. SHIP_URL=http://localhost:35453 VITE_DISABLE_SPLASH_MODAL=true pnpm dev-no-ssl --port 3000 --strictPort & ``

1. Browse http://localhost:3000/apps/groups/, log in with zod code

lidlut-tabwed-pillex-ridrup. Rube nukes ship state, so create a quick group via the + button to get a chat channel.

1. Vite serves packages/app etc. from source (workspace main: index.ts),

so edits hot-reload; confirm served code with curl -s "http://localhost:3000/apps/groups/@fs/<abs-path-to-file>" | grep <new-identifier>.

Browser-driving notes

• Synthesized key events (cmd+a, Backspace, Return) do NOT reach the RN-web

textarea. Use your browser tool's type/fill action instead. To "select-all + type over", set the value in one fill/input action (same as a real replace) rather than key-by-key. To send, click [data-testid="MessageInputSendButton"].

• The TanStack devtools floating toggle overlaps the send button bottom-right;

hide it first: document.querySelector('button[aria-label="Open Tanstack query devtools"]').style.display='none'.

• Screenshot coords are viewport × (screenshot_width / viewport_width) —

get element rects via JS and scale.

• Link-preview metadata fetches go browser → ship metagrab → target URL, so a

local node HTTP server with a setTimeout response works as a slow/ controllable metadata target (ship can reach localhost).

Teardown

lsof -ti:3000 | xargs kill -9; lsof -ti:35453 | xargs kill -9; pkill -f "rube/dist/urbit_extracted"