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[ARTICLE · art-118456] src=dev.to ↗ pub= topic=developer-tools verified=true sentiment=· neutral

Stop AI agents from reviving old project decisions

A developer released Markdown Gatekeeper, an open-source tool that prevents AI agents from reviving outdated project decisions by maintaining a single current revision per topic in Markdown files. The tool is local-first, uses plain Markdown and Git, and requires no account or cloud service.

read1 min views3 publishedSep 2, 2026

Long-running repositories collect Markdown files that disagree about what is current. Once Codex, Claude, and humans work across many sessions, an old architecture note can quietly become "the plan" again.

Markdown Gatekeeper keeps one current revision per topic. Competing docs stay proposals; superseded sources remain recoverable.

Local-first. Plain Markdown and Git. No account or cloud service.

npm install -g github:nanlogic/markdown-gatekeeper
mdg setup codex
mdg init .
source & further reading
dev.to — original article The 48-Hour Verdict: Sort Your AI Failures Before You Fix Them ProofPack: hash-locked delivery receipts for AI client work Give Every Agent Patch a Regression Budget, Not Just a Green Check
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