mirror of https://github.com/garrytan/gstack.git
The parent-process watchdog assumes connection mode is fixed at boot: headless daemons outlive their parent, headed ones do not. The env guards (BROWSE_PARENT_PID=0, BROWSE_HEADED=1) only cover daemons that were headed when they started. handoff breaks that assumption. It swaps in a headed context on a RUNNING daemon and sets connectionMode = 'headed' without a restart, so a daemon that legitimately registered a watchdog lands on the fatal side of the branch. The parent is usually a short-lived shell, and Claude Code's Bash tool kills one after every invocation, so the next 15s poll shuts the daemon down. The user-visible effect is that handoff destroys the thing it just created. It exists so a human can log in, solve a CAPTCHA, or clear an MFA prompt; the browser disappears about fifteen seconds later and takes the session with it. Observed while driving two registrar control panels: five daemon deaths and three logins, each one discarding the authenticated session. BrowserManager now exposes onHeadedPromotion, fired only on runtime promotion and not on a headed boot, and the server binds it to a canceller for the interval it already owned but previously discarded. Bound on both the module-level manager and any embedder-supplied one, since the watchdog reads activeBrowserManager and binding only the default would let embedders promote silently. The binding sits next to the browserManager declaration rather than next to clearParentWatchdog. Placing it with the function, which lives with the watchdog it cancels, reads better but touches browserManager in its temporal dead zone, which aborts module evaluation and leaves every later const uninitialized. findport tests catch that immediately. Tests: watchdog.test.ts already noted in its header that its three cases all fix mode via env at spawn time, so none reaches the headed branch. Driving a real handoff needs a headed Chromium, so the wiring is pinned with static tripwires instead, matching cdp-session-cleanup.test.ts and server-auth.test.ts. Verified they fail when the notification call is removed and pass when restored. Full `bun test` shows the same 6 pre-existing failures on this branch and on main (gstack-gbrain-detect, gstack-artifacts-init), which pass in isolation on both, so they are test-order pollution rather than a regression here. |
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| PLAN-snapshot-dropdown-interactive.md | ||
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