Only the coordinator holds a delegation allowlist; every other agent's is empty. Specialists cannot spawn or command each other, so the hub shape is structurally enforced.
main allowAgents: [8 agents] others allowAgents: [] maxSpawnDepth: 1 maxChildren: 3 completion: sessions_yield
Each handoff posts a delegation card (task-id, spec, done-criteria, deadline) in the specialist's public Slack channel, then spawns the worker. Coordination stays legible to the human.
Children report completion via sessions_yield; polling loops are prohibited. The parent owns verification and exactly one visible completion; late duplicates are suppressed.
Every agent heartbeats on its own cadence (60–240 min) into its own channel: proactive, but rate-limited by design.
Two staffed seats (plus one spare server) run entirely on the desk: the $0-marginal-cost experiment.
| Qwen3.6-35B-A3B 4bit DWQMoE · ~14 GB weights · distilled + fast | :8082 Local Junior |
| Gemma-4-26B-a4b 4bitMoE · measured ~89 tok/s on-device | :8801 Local Spare |
| Gemma-4-31B OptiQ 4bitstaged spare capacity | :8802 |
Local takes high-volume, low-stakes work: heartbeat personas, bulk grunt tasks, framework experiments. Frontier (Opus 4.8 primary, GPT-5.5 fallback, Sonnet 5 for sub-agents) keeps judgment, delegation, and anything a human will read.
for the full staff (Feb 2026 estimate); the local seats exist to bend that curve toward zero.
Twice in one week the assistant trusted its own memory file over the airline's confirmation email, and reported the wrong return date. The standing rule now: primary sources beat memory.
Every claim carries its timestamp; data over 24 h old must declare its age; health reports re-fetch biometrics before speaking. "Stale data presented as current is a trust violation."
One audit window logged 200+ gateway memory-pressure warnings. The response: a resource monitor with 70% / 80% alert bands, launchd-supervised restarts, and a 2-minute watchdog that revives the gateway itself.
Outbound to humans ships as a draft, never verified-and-sent in the same turn; money needs an explicit "do it." The human in the loop is a coordination mechanism, the ultimate consistency resolver.
sanketgautam.dev/ensemble