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fix(scripts): make the dev skills sync opt-in #21

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Merged
fiddur merged 1 commit into from
Aug 21, 2026
Merged

fix(scripts): make the dev skills sync opt-in #21

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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -244,6 +244,7 @@ diffity list --json # machine-readable output
| `DIFFITY_HOST` | Hostname used in the printed URL (default: `localhost`). |
| `DIFFITY_BIND` | Interface the server listens on (default: `127.0.0.1`). |
| `DIFFITY_DATA_DIR` | Where review notes are kept (default: `~/.diffity/<repo-hash>`). |
| `DIFFITY_SYNC_DEV_SKILLS` | Set to `1` to have a build install the `diffity-dev-*` skills into `~/.claude/skills`. |

Useful when running diffity inside a VM or container and opening it from another machine:

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1 change: 1 addition & 0 deletions bin/diffity
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@@ -0,0 +1 @@
../lib/node_modules/diffity/dist/index.js
6 changes: 4 additions & 2 deletions scripts/build-skills.ts
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Expand Up @@ -30,8 +30,10 @@ writeFile(
);
console.log(`Skills hash: ${skillsHash}`);

if (process.env.DIFFITY_SKIP_DEV_SKILLS || !homeDir) {
console.log('Skipped dev skills sync');
// Opt-in: a build should not write into the user's home directory unless asked. The dev skills
// exist to drive the `diffity-dev` binary from this checkout, which is not what most builds want.
if (!process.env.DIFFITY_SYNC_DEV_SKILLS || !homeDir) {
console.log('Skipped dev skills sync (set DIFFITY_SYNC_DEV_SKILLS=1 to install them)');
} else {
cleanManagedSkills(globalClaudeSkillsDir, DEV_SKILL_PREFIX);
for (const skill of skills) {
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