A six-stage sequence showing how Nexus turns signals into governed action, read left to right: OBSERVE, UNDERSTAND, PLAN, APPROVE, EXECUTE, LEARN. Stages one through three are the Nexus intelligence region; stage four is a human-authority gate that interrupts the flow; stages five and six are bounded execution and governed learning.
Stages
- OBSERVE — Signals enter Nexus. Events from connected software and people arrive and are normalized into a common shape Nexus can reason over.
- UNDERSTAND — Context, intent, entities, priority. Nexus interprets what a signal means — the entities involved, the intent behind it, and how urgent it is — against durable context.
- PLAN — Reasoning, cross-checking, structured planning. Nexus reasons across models, cross-checks itself, and prepares a structured plan for review rather than acting on a first inference.
- APPROVE — Human Authority gate. Consequential work stops here. A person reviews the plan and authorizes, adjusts, or declines it. Nothing downstream proceeds without this decision.
- EXECUTE — Specialized agents perform bounded work. Once authorized, specialized agents carry out the plan within explicit boundaries and permissions — never beyond what was approved.
- LEARN — Results contribute governed context. Outcomes are recorded as governed context, improving the next observation and plan without becoming an ungoverned memory.
Relationships
- The sequence proceeds in order from OBSERVE (01) through LEARN (06).
- APPROVE (04) is a human-authority gate, not an equal stage: EXECUTE (05) cannot begin until a person authorizes the plan at APPROVE.
- LEARN (06) returns governed context to OBSERVE (01) and the Nexus region, so the sequence informs the next cycle rather than ending.
The Human Authority gate at APPROVE separates what Nexus proposes from what is actually carried out. Agents at EXECUTE act only within the authorized plan.
This is an approved design direction, not a system available today. Example wording is illustrative.

