id: research-brief
version: 1
description: Multi-source research brief synthesis — 5-node PoC with 3 loop-body nodes.

nodes:
  - id: intake
    prompt: prompts/intake.md
    expects:
      success:
        writes:
          state: [sources]
      failure: {}

  - id: source-summarize
    prompt: prompts/source-summarize.md
    loop:
      over:  sources
      alias: loop.item
    expects:
      success:
        writes:
          artifact: { pattern: "artifacts/sources/{loop.item.id}.summary.md" }
          state:    ["sources.{loop.item.id}.summarized"]
      failure: {}

  - id: source-score
    prompt: prompts/source-score.md
    loop:
      over:  sources
      alias: loop.item
    expects:
      success:
        writes:
          state: ["sources.{loop.item.id}.score"]
      failure: {}

  - id: source-critique
    prompt: prompts/source-critique.md
    loop:
      over:  sources
      alias: loop.item
    expects:
      success:
        writes:
          state: ["sources.{loop.item.id}.critique"]
      failure: {}

  - id: brief-synthesize
    prompt: prompts/brief-synthesize.md
    expects:
      success:
        writes:
          artifact: { pattern: "artifacts/BRIEF.md" }
      failure: {}

edges:
  - { from: intake,           on: success, to: source-summarize }
  - { from: intake,           on: failure, halt: intake-failed }
  - { from: source-summarize, on: success, advance: loop-or-next, next: source-score }
  - { from: source-summarize, on: failure, halt: source-summarize-failed }
  - { from: source-score,     on: success, advance: loop-or-next, next: source-critique }
  - { from: source-score,     on: failure, halt: source-score-failed }
  - { from: source-critique,  on: success, advance: loop-or-next, next: brief-synthesize }
  - { from: source-critique,  on: failure, halt: source-critique-failed }
  - { from: brief-synthesize, on: success, terminal: complete }
  - { from: brief-synthesize, on: failure, halt: brief-failed }