Reproducible runs

With outDir / --out:

out/<runId>/run.json     # params, graphHash, defsHash, exact /prompt body, artifacts, warnings
out/<runId>/<files>      # downloaded artifacts

run.json.compiledJson is the lossless JSON submitted to /prompt, stored as a string. POST it again with { kind: "wire", json }.

Seeds must be explicit. Do not rely on Comfy's "randomize".

This reproduces the request. GPU bit-identical images are outside the SDK. Determinism