A secondary-owned Yuanbao bot keyed its per-group dispatch queue and RecallGuard
entries with the free `build_session_key(source)` — no profile, so `agent:main:` —
while `handle_message` popped under `agent:<owner>:`. Two derivations of one
identity: the group queue was shared across bots and the RecallGuard entries
leaked. Weixin, Telegram's photo batch, Slack's thread key and Raft's wake key
each carried their own copy of the call as well.
Every adapter-side key now comes from `BasePlatformAdapter._source_session_key`
/ `_event_session_key` (owner namespace, runner-seeded isolation flags, and —
after the RoutingIdentity PR — the pinned identity). Weixin's `_text_batch_key`
override is deleted (the base does the same). Slack's thread key reads the
isolation flags from the adapter config the runner seeds, not the store's.
Lint: pattern P32 in `scripts/ci/profile_scope_patterns.json` flags
`build_session_key(` / `SessionSource(` under `gateway/platforms/**` and
`plugins/platforms/**` except `platforms/base.py`; the checker gains an optional
`path_regex` per pattern. Advisory, like every other pattern.
Phase 2 of #88715.
scripts/check_profile_scope_patterns.py runs the validated hazard regexes in
scripts/ci/profile_scope_patterns.json (18 of the 31 campaign patterns: every one has a scope_hint
and hits <= 50 sites on main; the wider ones are review greps, not lint) against the lines added
vs the PR base and prints file:line, pattern id/class and why. Always exits 0: most shapes have
legitimate sites (a standalone `hermes -p x` process where environ IS the profile), so the
reviewer reads each finding against its scope hint. Wired into lint.yml beside the public-surface
diff with continue-on-error.
Proof: the pre-fix tools/bot_relay.py (`env = dict(os.environ)`, before the served_profile_child_env
change) is flagged as P05/C2; the fixed file and this branch's diff vs main report 0 findings.
Test: a fixture with the hazard is flagged on the right lines, the scoped-builder version is not,
and the line filter hides hits outside the added range.
