docs(ai): add design history workflow#499
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Document git history checks before changing unclear behavior. Signed-off-by: Cyril Fougeray <cyril.fougeray@toolsforhumanity.com>
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Document git history checks before changing unclear behavior.
Note
Low Risk
Documentation-only changes to AI assistant guidance; no firmware, build, or runtime behavior is affected.
Overview
Updates
utils/ai/AGENT.mdso assistants treat git history as design documentation when behavior is unclear.Prime Directive gains a rule to inspect commit history before changing behavior in those cases. A new Design Decision Archaeology section spells out a six-step workflow (
rg,git log/blame/pickaxe, grep on messages,git show, follow PR/issue links) plus rules: run commands in the owning repo, note shallow clones, avoid cargo-culting old behavior, and separate history-confirmed facts from inference in answers.Reviewed by Cursor Bugbot for commit 4035cce. Bugbot is set up for automated code reviews on this repo. Configure here.