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The Execution Flow in Product Engineering turns human or agent intent into concrete changes in source systems. Every step is governed, scoped, and logged.
1

Intent

A PM approves a sprint change or an on-call engineer resolves an incident.
2

Context

Spine Fabric assembles the relevant entities, history, and authorization.
3

Decision

Twin or the practitioner confirms the action: update issue, merge PR, run playbook.
4

Proposal

A capability is generated with inputs, scope, and expected outcome.
5

Capability Resolution

The capability is matched to a registered connector and authorization scope.
6

Handoff

If human approval is required, the proposal is surfaced in the workbench.
7

Tool Selection

The connector for Linear, GitHub, or PagerDuty is selected based on target system.
8

MCP/Connector

The connector translates the capability into a native API call.
9

Authorization

The call is authorized with scoped credentials and policy checks.
10

Human Approval

Sensitive actions pause for explicit approval before execution.
11

Workflow Execution

The action runs: issue moves, PR merges, incident resolves.
12

Source-System Write

The change is committed in the source system.
13

Receipt

A receipt is generated with actor, action, scope, time, and outcome.
14

Event

The receipt becomes an event, re-ingested into Spine Fabric.
15

Continuation

Full context persists for the next actor or session.