Individual skill

gsd:reapply-patches

Reapply local modifications after a GSD update

plugins/gsd/skills/reapply-patches/SKILL.md

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Source commit 82ce2112b080810c6b72939201d6a53876116e12

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Network or broad shell
Last checked
Nov 9, 2026

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3,737
Repository last updated
Nov 9, 2026
License
MIT

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<purpose>
After a GSD update wipes and reinstalls files, this command merges user's previously saved local modifications back into the new version. Uses three-way comparison (pristine baseline, user-modified backup, newly installed version) to reliably distinguish user customizations from version drift.

**Critical invariant:** Every file in `gsd-local-patches/` was backed up because the installer's hash comparison detected it was modified. The workflow must NEVER conclude "no custom content" for any backed-up file — that is a logical contradiction. When in doubt, classify as CONFLICT requiring user review, not SKIP.
</purpose>

<process>

## Step 1: Detect backed-up patches

Check for local patches directory:

```bash
expand_home() {
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