Pattern Proposal: Sequential Pipeline Orchestration

Summary

Coordinates multi-step agent and deterministic evaluation tasks through a centralised, linear execution runner with shared context propagation.

Candidate Pattern

• ID: sequential-pipeline-orchestration
• Classification: intelligence
• Maturity: established
• Type: implemented

Observed Signals

No specific signals listed.

Evidence

Supporting Evidence

• src/cas_runner/runner.py (FlowRunner) - Main execution engine managing workflow phases.
• docs/architecture/cas-orchestration-flow.md - Visualizes sequential flow and checkpointing logic.

Scope Assessment

• Evidence Strength: high
• Confidence: high
• Applies to: ideas-to-life-cas

Rationale

• Intent: Execute ordered architectural analysis and synthesis steps deterministically, terminating immediately on critical compliance failures.
• Context: The central coordinator for executing CAS commands via CLI or GitHub Actions workflows.
• Force: Autonomous agent loops can spin indefinitely or deviate without strict step boundaries.
• Force: CI/CD systems demand deterministic exit codes and structured stage results.

Traceability

Artifact source: proposed-patterns