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docs: warn against Python for managed-resources hash; causes resync hang

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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Mikael Hugo 2026-04-25 23:20:15 +02:00
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@ -43,6 +43,13 @@ ps aux | grep "heap-prof-interval" | grep -v grep
# Kill them: ... | awk '{print $2}' | xargs kill -9
```
**Do not use Python for one-off JSON/hash work.** The resource fingerprint in
`~/.sf/agent/managed-resources.json` is computed by Node's SHA-256 — Python's
`hashlib` produces a different result for the same files, which breaks the
fast-path check in `initResources` and causes a 30-60 s full resync on every
launch. Use `node -e` (or `jq`) for any shell-level JSON/hash operations in
this repo.
## Key directories
| Path | Purpose |