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plat 523
State: open. Date: 2026-10-05. Priority: P3. Source: owner-supplied browser review.
The local isDeadSession classifier in executor.go matches any error
containing CDP response channel closed, No such file or directory or
ProcessSingleton. It excludes Failed to save errors, but does not corroborate
other matches with daemon/socket/process health before calling
killSessionRuntimeFully and retrying the command.
client.go builds errors from API error, stdout and stderr, so a file-operation
failure or incidental stderr can satisfy the broad match. The classifier also
controls failed-open removal from the tracker. Direct-CDP automatic recovery
has an additional active-owner/recording guard; this reduces shared disruption
but does not make the text classifier a reliable health check.
Source confirms the risk. This review did not reproduce a healthy-browser loss from a benign error or claim the runtime currently has structured error codes.
Limit recovery to structured transport failures when available, or corroborate with the correct execution host's socket/daemon health. Distinguish launch singleton collisions from action/file errors. Preserve the original failure and a healthy session; do not retry mutations solely because error text resembles a dead runtime. Verify a healthy browser survives missing-file errors and a real crash still follows the supported recovery path.
No runtime fix or deployment is claimed by this ticket.
Auto-synced from docs/ on main. Edit there, not here.