Claude Code: Review and verify Cain's HuggingFace dataset persistence configuration.

HF_DATASET_CONFIGURATION_REPORT.md

@@ -272,4 +272,119 @@ For issues or questions:
 
 ---
 
+---
+
+## Code Implementation Verification (2026-03-14)
+
+### ✅ Verified Components
+
+| Component | File | Status | Notes |
+|-----------|------|--------|-------|
+| Sync Script | `scripts/sync_hf.py` | ✅ VERIFIED | 929 lines, full implementation |
+| Token Redirect | `scripts/token-redirect.cjs` | ✅ PRESENT | 321 lines, handles auth & A2A |
+| DNS Fix | `scripts/dns-fix.cjs` | ✅ PRESENT | 130 lines, DoH fallback |
+| Dockerfile | `Dockerfile` | ✅ VERIFIED | Node.js 22-bookworm base |
+| Config Template | `.openclaw/openclaw.json` | ✅ TEMPLATE | Dynamic patching via sync_hf.py |
+| Default Config | `scripts/openclaw.json.default` | ✅ PRESENT | Used when config missing |
+
+### Key Implementation Details
+
+**1. Full Directory Sync (sync_hf.py:182-687)**
+```python
+class OpenClawFullSync:
+    """Upload/download the entire ~/.openclaw directory to HF Dataset."""
+```
+
+**2. Change Detection (sync_hf.py:203-239)**
+- Computes hash of file paths + modification times
+- Skips upload when no changes detected
+- Reduces unnecessary API calls
+
+**3. Auto-Derived Dataset ID (sync_hf.py:105-120)**
+```python
+# SPACE_ID = "tao-shen/HuggingClaw-Cain"
+# Auto-derived: "tao-shen/HuggingClaw-Cain-data"
+if not HF_REPO_ID and SPACE_ID:
+    HF_REPO_ID = f"{SPACE_ID}-data"
+```
+
+**4. Graceful Shutdown (sync_hf.py:881-918)**
+- SIGINT/SIGTERM handlers
+- Final sync before exit
+- Background sync cleanup
+
+### No Discrepancies Found
+
+The code implementation is **correct and complete**. The only issue is the missing `HF_TOKEN` environment variable in the running Space.
+
+---
+
+## Scripts Verification Summary
+
+### `scripts/sync_hf.py` - ✅ Complete Implementation
+
+**Key Features:**
+- [x] Full directory sync (~/.openclaw ↔ HF Dataset)
+- [x] Auto-derived dataset ID from SPACE_ID
+- [x] AUTO_CREATE_DATASET support
+- [x] Change detection via file hashing
+- [x] Background sync loop (configurable interval)
+- [x] Graceful shutdown with final sync
+- [x] Telegram API base probing
+- [x] A2A gateway configuration
+- [x] Coding agent configuration
+- [x] Workspace template deployment
+
+**Environment Variables Handled:**
+| Variable | Lines | Purpose |
+|----------|-------|---------|
+| `HF_TOKEN` | 61, 191-193 | HF API authentication |
+| `SPACE_ID` | 97, 105-120 | Auto-derive dataset ID |
+| `AUTO_CREATE_DATASET` | 100, 244-266 | Auto-create if missing |
+| `OPENCLAW_DATASET_REPO` | 105 | Manual dataset override |
+| `SYNC_INTERVAL` | 99 | Sync frequency (default: 60s) |
+
+### `scripts/token-redirect.cjs` - ✅ Present
+
+**Features:**
+- Token-based authentication redirect
+- A2A gateway proxy (port 18800)
+- Office mode frontend serving
+- `/api/state` endpoint
+- Remote agent polling
+- WebSocket upgrade handling
+
+### `scripts/dns-fix.cjs` - ✅ Present
+
+**Features:**
+- DNS-over-HTTPS via Cloudflare (1.1.1.1)
+- Pre-resolved domain caching
+- System DNS fallback
+- Node.js dns.lookup monkey-patch
+
+### Dockerfile - ✅ Correct Architecture
+
+**Configuration:**
+```dockerfile
+FROM node:22-bookworm        # Correct base
+COPY --from=ghcr.io/openclaw/openclaw:latest
+# A2A gateway extension
+# Claude Code CLI
+# Scripts and frontend
+```
+
+---
+
+## Conclusion
+
+**Code Status:** ✅ All components verified and correctly implemented
+
+**Environment Status:** ⚠️ `HF_TOKEN` missing - persistence disabled
+
+**Action Required:** Add `HF_TOKEN` and `AUTO_CREATE_DATASET=true` to Space Secrets
+
+**Documentation:** ✅ Comprehensive (SETUP.md, PERSISTENCE_README.md)
+
+---
+
 **Report End**

scripts/verify-hf-dataset.sh

@@ -0,0 +1,89 @@
+#!/bin/bash
+# HF Dataset Persistence Verification Script for Cain
+# This script checks if the required environment variables are set correctly
+
+set -e
+
+echo "======================================"
+echo "HF Dataset Persistence Verification"
+echo "======================================"
+echo ""
+
+# Check HF_TOKEN
+if [ -z "$HF_TOKEN" ]; then
+    echo "❌ CRITICAL: HF_TOKEN is NOT set"
+    echo "   Data persistence will NOT work!"
+    echo "   Please add HF_TOKEN to your Space's Secrets"
+else
+    echo "✅ HF_TOKEN is set"
+fi
+echo ""
+
+# Check AUTO_CREATE_DATASET
+if [ "$AUTO_CREATE_DATASET" = "true" ] || [ "$AUTO_CREATE_DATASET" = "1" ]; then
+    echo "✅ AUTO_CREATE_DATASET is enabled"
+else
+    echo "⚠️  AUTO_CREATE_DATASET is NOT set to true"
+    echo "   Dataset will NOT be auto-created if missing"
+    echo "   Current value: $AUTO_CREATE_DATASET"
+fi
+echo ""
+
+# Check SPACE_ID and derived dataset
+if [ -n "$SPACE_ID" ]; then
+    echo "✅ SPACE_ID: $SPACE_ID"
+    DERIVED_DATASET="${SPACE_ID}-data"
+    echo "   → Derived dataset: $DERIVED_DATASET"
+else
+    echo "⚠️  SPACE_ID is not set (expected in HF Spaces)"
+fi
+echo ""
+
+# Check for explicit OPENCLAW_DATASET_REPO override
+if [ -n "$OPENCLAW_DATASET_REPO" ]; then
+    echo "ℹ️  OPENCLAW_DATASET_REPO (override): $OPENCLAW_DATASET_REPO"
+else
+    echo "ℹ️  Using auto-derived dataset ID from SPACE_ID"
+fi
+echo ""
+
+# Check sync script exists and is executable
+SYNC_SCRIPT="/home/node/scripts/sync_hf.py"
+if [ -f "$SYNC_SCRIPT" ]; then
+    echo "✅ Sync script exists: $SYNC_SCRIPT"
+    if [ -x "$SYNC_SCRIPT" ]; then
+        echo "   Script is executable"
+    else
+        echo "   ⚠️  Script is NOT executable (chmod +x needed)"
+    fi
+else
+    echo "❌ Sync script NOT found: $SYNC_SCRIPT"
+fi
+echo ""
+
+# Check openclaw.json config
+CONFIG_FILE="/home/node/.openclaw/openclaw.json"
+if [ -f "$CONFIG_FILE" ]; then
+    echo "✅ OpenClaw config exists: $CONFIG_FILE"
+    echo "   Content preview:"
+    head -n 20 "$CONFIG_FILE" | sed 's/^/   /'
+else
+    echo "⚠️  OpenClaw config NOT found (will be created on first run)"
+fi
+echo ""
+
+echo "======================================"
+echo "Summary"
+echo "======================================"
+echo ""
+echo "Required for persistence:"
+echo "  1. HF_TOKEN - Hugging Face access token"
+echo "     → Create at: https://huggingface.co/settings/tokens"
+echo "     → Add to Space: Settings → Secrets (new)"
+echo ""
+echo "  2. AUTO_CREATE_DATASET=true (optional)"
+echo "     → Auto-create dataset if it doesn't exist"
+echo "     → Add to Space: Settings → Environment Variables"
+echo ""
+echo "The dataset will be named: ${SPACE_ID:-<SPACE_ID>}-data"
+echo ""