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docs: replace .claudeignore troubleshooting tip with permissions.deny #1936

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docs: replace .claudeignore troubleshooting tip with permissions.deny #1936

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10 changes: 5 additions & 5 deletions README.md
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Expand Up @@ -597,12 +597,12 @@ graphify install # overwrites the skill file
```

**Claude Code prompt cache invalidated after every `graphify extract`**
Graphify writes output files (`graph.json`, `graphify-out/`) into the workspace. If those paths aren't ignored, every write invalidates Claude Code's prompt cache, forcing a full re-upload at cache-write rates on the next turn. Add them to `.claudeignore`:
```text
# .claudeignore
graph.json
graphify-out/
Graphify writes output files (`graph.json`, `graphify-out/`) into the workspace. If those paths aren't ignored, every write invalidates Claude Code's prompt cache, forcing a full re-upload at cache-write rates on the next turn. Claude Code has no `.claudeignore` support — deny read access to those paths instead:
```json
// .claude/settings.json
{ "permissions": { "deny": ["Read(./graphify-out/**)", "Read(./graph.json)"] } }
```
Note this gates *access*, not just cache behavior — it also blocks workflows that read `graphify-out/` back (e.g. using the generated wiki for navigation). If you rely on those, skip this and accept the cache cost instead.

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