Build Reproducibility Audit

Check whether builds produce the same output twice.

Added October 15, 2026. Written with AI assistance and checked for clarity and placeholders; not reviewed by a lawyer, accountant, clinician or other professional. How these prompts are made

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Audit my build for reproducibility. Language and build system: [BUILD_SYSTEM]. Dockerfile or build scripts: [BUILD_FILES]. How dependencies are specified: [DEPENDENCY_MANAGEMENT]. Where artifacts are published: [ARTIFACT_REGISTRY].

Produce an audit of sources of non-determinism: unpinned versions, timestamps, file ordering, locale, network access during build, base image tags that move, and tool versions. For each, state how to detect it with a command, the fix, and the effort. Include an experiment: build the same commit twice on clean machines and compare checksums, with commands. Define a target maturity ladder of four levels with criteria. Cover lock files, base image digests and provenance records in general terms. Advise me to verify any supply-chain requirement from my customers or regulators.

Add a short remediation roadmap with three milestones and the evidence that proves each is complete (for example, two clean builds with identical checksums). Include a note on what reproducibility will not fix, such as upstream packages that disappear, and suggest mirroring critical dependencies. Keep language practical, and mark any claims about specific tool versions as needing verification against current documentation.

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