Cut v0.1.0-beta.4#6
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Three low-risk hardening fixes from a security review. None is exploitable today; each removes a latent footgun should an input source change. - ui.ts: validate the URL before openUrl hands it to a shell on Windows (`start` is a cmd builtin). Restrict to an https `*.vercel.run` origin with a shell-safe character set via a new exported `isOpenableUrl` predicate. - ready.ts: pass the loop count and port to the waitForPort probe as bash positional args ($1/$2) instead of string-interpolating them, matching the positional-arg pattern used elsewhere. - sync.ts: add `--` to the remote `rm -f` so no target can be read as an option (targets are always absolute, so this is belt-and-suspenders). Adds unit tests for isOpenableUrl and updates the removeFiles assertion. https://claude.ai/code/session_01GVqD2pepFwpZG7dNp9T9jh
Beta feedback showed raw HTTP 403 dumps with no guidance ("No clue why i
got this or what to even do"). v0.1.0-beta.3 calmed the `up .` auth paths;
this extends the same treatment to the paths it missed:
- `up stop` had none of the calm handling: an expired/invalid token dumped
the same raw 403 the feedback flagged. Route auth failures to the
sign-in note, and turn the very common "nothing to stop" case (sandbox
expired, or stop ran from a different directory than `up .`) into a
short explanation pointing at `up ls` instead of a raw 404/410 body.
- The sign-in note assumed the Vercel CLI is installed; `vercel login` is
a dead end for newcomers without it. Add a dim hint with the install
command and the VERCEL_TOKEN alternative.
- The dev-server timeout error never named the port it was waiting on. A
dev script that binds a different port (hardcoded -p, PORT ignored) hit
a 90s wait then an unexplained timeout. Name the port and point at
--port.
https://claude.ai/code/session_01GVqD2pepFwpZG7dNp9T9jh
Beta feedback: a user declined the .env.local prompt and their app (which needed those keys) ran broken, with a nag line on every later run and the flag required on each retry. A local dotenv almost always exists because the app needs it, so lean into that: - Default the .env.local prompt to yes; the common path is one Enter. - `--env-file` now records the choice, so passing it once re-enables injection on future runs (it also overrides an earlier "no"). - A recorded "no" stays quiet instead of printing the --env-file hint on every run; the hint shows only while no decision exists. - Drop the "!" on the env line of the shared-command trust panel; env injection is the expected case, not an alarm (sensitive-config keeps its warning since that genuinely persists in snapshots). https://claude.ai/code/session_01GVqD2pepFwpZG7dNp9T9jh
`up` waited on the framework's default port even when the project's dev script bound a different one (e.g. `next dev -p 4000`, `vite --port=8000`, `PORT=4000 node server.js`). Since `pm run dev` does not forward a port flag and a hardcoded port ignores the injected PORT env var, the server came up on its own port while the supervisor polled the default, ending in a 90s timeout for a project that needed no flags. Parse an explicit port out of the dev script (--port/-p/PORT=) and use it as the profile port so the supervisor waits where the server actually binds. Conservative matching: word-boundary guarded so `--prefix`, `npm-run-all -p`, and `run-p` are not misread, and out-of-range values are ignored. Falls back to the framework default when no port is present. https://claude.ai/code/session_01GVqD2pepFwpZG7dNp9T9jh
The message fallback /not[_ ]?found/i also matched ENOTFOUND, so `up stop` while offline would report "Nothing to stop" instead of the network error, leaving the user believing a still-running sandbox (and its public URL) was stopped. Match the API status (404/410) only, like the SDK does; anything else surfaces as a real error. https://claude.ai/code/session_01GVqD2pepFwpZG7dNp9T9jh
Ships the changes from #4 and #5: hardened command construction, calmer auth/stop/timeout error paths, low-friction env-file injection, and honoring an explicit port in the project's dev script. - Add the v0.1.0-beta.4 release artifacts (sha256-checksummed bundle). - Point install.sh's default version at v0.1.0-beta.4. - Print the next step after a successful install when no PATH change is needed, so the happy path ends with what to run instead of silence. https://claude.ai/code/session_01GVqD2pepFwpZG7dNp9T9jh
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Ships the changes from #4 and #5: hardened command construction, calmer auth/stop/timeout error paths, low-friction env-file injection, and honoring an explicit port in the project's dev script.
v0.1.0-beta.4release artifacts underapps/downloads/public/releases/(sha256-checksummed bundle; existing release directories untouched).install.sh's default version atv0.1.0-beta.4.Run: cd <your-project> && up .) after a successful install when no PATH change is needed, so the happy path ends with what to run instead of silence.Verified locally:
verify-releasespasses for all four release directories,sh -non the installer, and the repo lint/build. The committed bundle is built from the same source asmain, so the GitHub Release produced when thev0.1.0-beta.4tag is pushed should match its checksum (the beta.3 GitHub Release checksum matches the committed artifact byte-for-byte, confirming the build is reproducible).After merge: tag the merge commit
v0.1.0-beta.4to publish the GitHub Release.https://claude.ai/code/session_01GVqD2pepFwpZG7dNp9T9jh
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