This is the cause. Everything before it was symptom.
`handleChat` had two spawn call sites. The first, for a new session, passed `member`.
The second — "session already live" — was a separate object literal that did not.
That branch is taken whenever OFFICER still holds the session, and officer holds it
long after the SIDECAR has let go: the sidecar reaps a session after 30 minutes idle,
`_claudeKill` stays set here regardless. So a gap sent a turn with no identity to a
sidecar with nothing to push it onto, and it created a fresh session from those
params. No member means the owner.
[claude:spawn:…] resume=49527b33… cwd=…/data/jg@pertento.ai/home as=owner
green is a Developer with their own Linux account, their own `claude` and their own
login. Every turn after a break ran as the OWNER: owner's HOME, owner's Anthropic
credential, owner's MCP config — which carries a JWT that signs as the owner. The
entire per-member boundary, undone by an omitted line in the branch nobody reads.
It surfaced as breakage rather than as silent escalation only by luck. The owner's
`claude` was handed the member's cwd — a 700 home it cannot enter — and the member's
transcript id, so it exited 1 instead of quietly working. Reported as "he went for a
walk and it stopped working", which is the idle timeout to the minute.
── The fix, and what it then found ──
Both paths now build from one `turnParams`, so they cannot drift again.
Then `member` was made REQUIRED-though-possibly-undefined in the protocol, and the
compiler immediately found three more sites that had left it out:
- `agent-handoff/deliver.ts` — the same bug, worse. No member AND a cwd from
`getOwnerHomeDir`, which ignores the email it is given. A member's agent panel ran
as the owner in the owner's home. Now resolves identity like chat does.
- `agents/agent-runner.ts`, `tasks/pipeline-executor.ts` — correct as they were:
both are `kind: 'execution'`, owner-only and never grantable. They now say
`member: undefined` explicitly, because a field you must fill in is a decision and
a field you may omit is an accident.
`resolveTurnIdentity` is exported so "whose turn is this" has one implementation
rather than three.
── What I got wrong on the way ──
Three wrong answers first — the credential, the working directory, then a recovery
whose condition could never fire — each from reading code and reasoning instead of
making the system say what it was doing. The log line that found this took five
minutes to write and should have been the first thing I did, not the fourth.
Also: `--resume` by hand appeared to work twice, which is what sent me down the wrong
paths. It proved nothing. The id I tested was not the id the platform passed.
tsgo clean, 950 pass / 7 fail unchanged.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
pastilhasandClaude Opus 5
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