rdmsm4x - fleet - Grok first-class agent: identity detection, joined watermark, 176-broadcast triage - claude - TASK-20260926-14 - fleet/maintenance - 2026-09-26 12:15 EDT

Grok (Bot and Build CLI) now resolves as grok@ on the bus, in git trailers and on ticket claims, and heartbeats count it. New agents are no longer charged with broadcasts sent before they joined: grok0926's preflight is rc 0, honestly.

• Scope: hub rdmsm4x, rolled out by configsync to rdmbair13m5, rdmbair15m5, rdmpw3275m and jdmbair13m5 (hashes verified). rdmpw3265m was offline and is pending in configsync.
• Commits: maintenance 7e81a9d (agent_msg v1.7.0 detection, ticket_proxy v1.3, reconciler ships agent_status), eeda440 (joined watermark + tests 78/78), b317af4 (FLEET.md s3); issues 28d7cb6 (ticket detect_agent).
• Hub live files: ~/.agent-coordination/{agent_msg.zsh, git-hooks/prepare-commit-msg (v1.1), agent_status.zsh (v1.2), FLEET.md, ACTIVE-DIRECTIVES.md}, ~/dev/SETTLED-ANSWERS.md (SA-23).
• Bus: 176 HIGH broadcasts expired with reasons (4 newly captured in ACTIVE-DIRECTIVES, 28 already captured, 144 obsolete). Watermarks set: grok 20260924-154321, rtty 20260926-115121, cash 20260926-113530.
• Verification: ticket suites 47/69/279; hermetic identity matrix 6/6; hook scratch repo 5/5; preflight rc 0 for grok/rtty/cash; negative control rc 1.
• Undo: zsh ~/dev/_handoff/grok-onboarding-followups-20260926/rollback.zsh --apply
• Details: ~/dev/_handoff/grok-onboarding-followups-20260926/HANDBACK.md
• Owner actions: none.