The core model

Entity observations change through supersession. Project checkpoints have a separate current pointer: a stale normal write remains a branch until explicitly reconciled.

Structured working state — objective, status, owner, next actions, blockers — written with compare-and-set and rebuilt on demand under a hard token budget.

Every resume section reports included and total counts, so a truncated context bundle can never masquerade as a complete one.

Message states record what the server knows — tracked, deliberately not guaranteed. Read-state is shared truth: “seen” is distinguishable from “missed.”

Forecast-driven coordination instead of fixed polling. Every report carries an ETA; silence past a forecast is itself a signal.

Supports per-agent credentials and observe, mixed, and required modes. Enforced identity depends on the configured rollout; an observe-mode identity label alone is not agent proof.