dag-fanout

name	dag-fanout
tier	core
runtime	on-demand
trigger	mention
description	Hand-written lens-spec fanout: you author the lenses (persona + sub-angles), the engine runs them concurrently and judges. Manual gearbox of dag-council. Trigger: fanout with my own lenses / 手写 lens / 我已明确要哪几个视角 / dag-fanout. Skip: want the conductor to author lenses automatically (/dag-council, the default) / web research (/dag-research).
metadata	{"source":"oh-my-dag","version":"1.0.0","methodology":"explicit lens spec + diversity>volume + multi-judge panel"}
disable-model-invocation	true

/dag-fanout — hand-written lens fanout

When you already know exactly which expert perspectives you want, write them down and skip the conductor: each lens (persona + V sub-angles) runs concurrently over the same question + ground truth, then reduce → synthesis → judge.

Usage

bun run dag-fanout <spec.json>

// spec.json
{
  "question": "…",
  "groundTruth": "…",                     // shared evidence base fed to every lens
  "lenses": [
    { "key": "operator", "persona": "…", "subAngles": ["…", "…"] },
    { "key": "risk",     "persona": "…", "subAngles": ["…"] }
  ],
  "synthesisFramings": ["…"],             // optional
  "judgeCriteria": ["…"],                 // optional; default includes factual/engineering correctness
  "lensModel": "provider:model",          // optional (env OMD_LENS_MODEL)
  "reasonModel": "provider:model"         // optional (env OMD_REASON_MODEL)
}

Artifact: /tmp/dag-fanout-<slug>-<ts>.md.

Discipline

Diversity > volume: sub-angles must be different questions, not the same prompt resampled — resampling has diminishing returns; orthogonal angles don't.