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Deterministic CI flow

Use a deterministic scan + diff flow and parse the stable summary line.

Minimal recipe

nuky scan
nuky diff --summary-only

This flow relies on the default scan rotation (scan_old.json → scan.json).

To diff two explicit artifacts, use:

nuky diff --no-scan old.json new.json

Outputs

  • .nuky/out/diff_summary.txt (human-readable)
  • .nuky/out/diff.json (canonical JSON)
  • .nuky/out/diff.md (markdown summary)

Exit codes

  • 0: No contract or behavior changes.
  • 2: Behavior changes only.
  • 3: Contract changes present.

Exit codes are deterministic for the same inputs and toolchain.