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fix(agents): tell agents cross-session SendMessage doesn't reach teammates (v0.462.2) - #876

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vikasprogrammer merged 1 commit into
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feat/cross-session-brief
Oct 22, 2026
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vikasprogrammer merged 1 commit into
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feat/cross-session-brief

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Adds one bullet to AGENT_OS_OPERATING_NOTES (the fleet section): don't use Claude Code's SendMessage/ListAgents to reach other sessions — every governed session sets crossSessionInbound: "refuse", so the send is silently dropped while looking delivered, and it would skip audit + run-as identity. Steers to ask_agent / task_create / ask_human / notify; own-subagent SendMessage stays fine.

Ref: https://code.claude.com/docs/en/cross-session-messaging

Validated: typecheck, build, npm run test:governance.

🤖 Generated with Claude Code

…mates (v0.462.2)

Governed sessions refuse inbound cross-session messages, but the tool stays
available, so a send to another session looked delivered and was dropped.
The operating notes now steer agents to ask_agent/task_create/ask_human/notify.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@vikasprogrammer
vikasprogrammer merged commit 4695546 into main Oct 22, 2026
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