Workflow Builder

What's happening

A code-first workflow tool: pick a pipeline template, customize parameters, fire triggers, and watch nodes execute in real-time.

Template selector: Choose from 3 built-in pipeline templates — each demonstrates a different DAG topology (linear, diamond, full graph). Templates are defined as code factories using pipeline() + task().

DAG visualization: Vue Flow renders the pipeline graph with auto-layout via dagLayout() (Sugiyama-style layered algorithm). Nodes animate with status colors and glowing edges. Hover any node for a popover with status, circuit breaker state, and log tail.

Parameter controls: Adjust simulation duration and failure rate in real-time. Higher failure rates trigger circuit breakers, which skip downstream tasks.

Execution log: Every trigger and completion is logged reactively via reactiveLog().

Primitives used

• pipeline() — Orchestrate: topological DAG wiring with auto-detection
• task() — Orchestrate: async task with status tracking + circuit breaker skip
• workflowNode() — Orchestrate: bundled node with log + circuit breaker + simulation
• dagLayout() — Orchestrate: Sugiyama-style layered DAG layout algorithm
• fromTrigger() — Source: imperative fire → reactive emission
• reactiveLog() — Data: append-only bounded log with reactive tail
• circuitBreaker() — Utils (via workflowNode): failure threshold → open → cooldown