# GOAP Execution Status: Turso Vector Search Benchmark Optimization

**Date**: 2025-12-30
**Status**: Partially Complete - Code Updated, Environment Setup Blocked
**Priority**: High (Blocking Phase 2 Index Optimization)

---

## Executive Summary

### ✅ Completed Work

1. **Phase 1: Research & Understanding** (COMPLETE)
   - Identified correct URL format: `libsql://127.0.0.1:8080` (NOT `http://`)
   - Confirmed vector extensions are native to Turso (no loading required)
   - Verified libsql-rs v0.9 supports only `libsql://` protocol for remote
   - Documented setup requirements and verification commands

2. **Phase 3: Benchmark Code Updates** (COMPLETE)
   - Updated `setup_storage_with_data()` to use `libsql://` protocol
   - Added environment variable support (`TURSO_DATABASE_URL`, `TURSO_AUTH_TOKEN`)
   - Added `verify_vector_extensions()` function to detect vector availability
   - Updated `benchmark_embedding_storage()` with same changes
   - All benchmark code now uses correct Turso connection format

3. **Documentation Updates** (COMPLETE)
   - Fixed incorrect URL format in HOW_TO_RUN_TURSO_LOCALLY.md (6 occurrences)
   - Fixed incorrect URL format in README.md (2 occurrences)
   - All `http://` references corrected to `libsql://`
   - Added notes about protocol requirements

### ⚠️ Incomplete Work

4. **Phase 2: Turso Environment Setup** (BLOCKED)
   - Turso CLI installation failed (network issue with get.turso.dev)
   - Docker not available in environment
   - Go not available for alternative installation
   - Cargo install failed (turso-cli not in crates.io)
   - Building libsql-server from source timed out (10+ minutes)

5. **Phase 4: Benchmark Execution** (BLOCKED)
   - Cannot execute benchmarks without Turso environment
   - All benchmarks depend on vector extensions being available
   - `verify_vector_extensions()` will fail without Turso server

6. **Phase 5: Validation** (BLOCKED)
   - Cannot verify vector index usage without Turso environment
   - Cannot validate performance scaling without actual measurements

7. **Phase 6: Report Generation** (PARTIAL)
   - Can generate framework reports, but cannot include actual performance data
   - Reports will document limitation and setup requirements

---

## Technical Details

### Changes Made to Benchmark Code

**File**: `/workspaces/feat-phase3/benches/turso_vector_performance.rs`

#### Change 1: Added Vector Extension Verification

```rust
/// Verify vector extensions are available in the database
async fn verify_vector_extensions(storage: &TursoStorage) -> Result<()> {
    let conn = storage.connect().await
        .map_err(|e| anyhow::anyhow!("Failed to connect: {}", e))?;

    match conn.execute("SELECT vector32('0.1,0.2,0.3')", ()).await {
        Ok(_) => {
            eprintln!("✓ Vector extensions verified: vector32() function available");
            Ok(())
        }
        Err(e) => {
            eprintln!("✗ Vector extensions NOT available: {}", e);
            Err(anyhow::anyhow!(
                "Vector extensions not available. Ensure you're using Turso server (libsql://), \
                not local SQLite (file://). See HOW_TO_RUN_TURSO_LOCALLY.md."
            ))
        }
    }
}
```

#### Change 2: Updated Connection Logic

```rust
// OLD (INCORRECT - uses local SQLite without vector extensions)
let storage = TursoStorage::new(&format!("file:{}", db_path.to_string_lossy()), "")
    .await
    .expect("Failed to create turso storage");

// NEW (CORRECT - uses Turso server with vector extensions)
let url = std::env::var("TURSO_DATABASE_URL")
    .unwrap_or_else(|_| "libsql://127.0.0.1:8080".to_string());
let token = std::env::var("TURSO_AUTH_TOKEN")
    .unwrap_or_else(|_| String::new());

eprintln!("Connecting to Turso at: {}", url);

let storage = TursoStorage::new(&url, &token)
    .await
    .expect("Failed to create turso storage");
storage.initialize_schema().await.expect("Failed to initialize schema");

// Verify vector extensions are available
verify_vector_extensions(&storage).await.expect("Vector extensions not available");
```

### Documentation Corrections

**Files Updated**:
1. `/workspaces/feat-phase3/benchmark_results/phase1_multi_dimension/HOW_TO_RUN_TURSO_LOCALLY.md`
2. `/workspaces/feat-phase3/benchmark_results/phase1_multi_dimension/README.md`

**Corrections Made**:
- Changed `http://127.0.0.1:8080` → `libsql://127.0.0.1:8080` (8 occurrences)
- Updated connection examples to use `libsql://` protocol
- Added notes about protocol requirements
- Fixed quick reference tables

---

## Current Blocker Analysis

### Primary Blocker: No Turso Environment Available

**Issue**: Cannot run benchmarks because vector extensions are only available in Turso (cloud or local dev server), not in local SQLite.

**Tried Solutions**:
1. ❌ Turso CLI via curl script - DNS resolution failed
2. ❌ Turso CLI via Homebrew - Not available in environment
3. ❌ Turso CLI via Go - Go not available
4. ❌ Turso CLI via Cargo - Crate doesn't exist on crates.io
5. ❌ Docker libsql-server - Docker not available
6. ❌ Build libsql-server from source - Timed out after 10+ minutes

**Available Alternatives**:
1. **Turso Cloud Database** (MOST VIABLE)
   - Create free Turso account
   - Create cloud database
   - Get connection URL and auth token
   - Run benchmarks against cloud
   - Pros: No installation needed, always available, full vector support
   - Cons: Network latency, data lives in cloud

2. **Continue Building libsql-server** (TIME-CONSUMING)
   - Complete build from source
   - Estimated additional time: 15-30 minutes
   - Pros: Local server, no network dependencies
   - Cons: Takes time, resource-intensive

3. **Document Limitation** (FASTEST)
   - Document that benchmarks require Turso environment
   - Provide clear setup instructions
   - Mark results as "pending execution"
   - Pros: Quick, informative
   - Cons: Doesn't actually solve the problem

---

## Recommended Next Steps

### Option 1: Use Turso Cloud (RECOMMENDED)

1. **Create Turso Account** (free tier available)
   ```bash
   # Use browser or CLI when available
   # Visit: https://turso.tech
   ```

2. **Create Benchmark Database**
   ```bash
   # When Turso CLI is available:
   turso db create vector-benchmark-test
   turso db show vector-benchmark-test
   ```

3. **Configure Environment**
   ```bash
   export TURSO_DATABASE_URL="libsql://<your-database-url>"
   export TURSO_AUTH_TOKEN="<your-auth-token>"
   ```

4. **Run Benchmarks**
   ```bash
   cd /workspaces/feat-phase3
   cargo bench --bench turso_vector_performance \
     --features do-memory-storage-turso/turso_multi_dimension
   ```

### Option 2: Complete libsql-server Build

1. **Continue Build**
   ```bash
   cd /tmp/libsql-server
   cargo build --release -p libsql-server --bin sqld
   ```

2. **Start Server**
   ```bash
   /tmp/libsql-server/target/release/sqld \
     --db-file /tmp/turso_benchmark.db \
     --http-listen-addr 127.0.0.1:8080
   ```

3. **Run Benchmarks** (same as Option 1, but no auth token needed)

### Option 3: Skip and Document (QUICKEST)

1. Document limitation in reports
2. Provide setup instructions for future execution
3. Mark Phase 1 as "code ready, pending environment setup"

---

## Deliverables Status

| Deliverable | Status | Notes |
|-------------|---------|---------|
| Correct URL format identified | ✅ Complete | `libsql://` protocol |
| Benchmark code updated | ✅ Complete | Environment variable support |
| Vector verification added | ✅ Complete | Will fail if wrong environment |
| Documentation corrected | ✅ Complete | All `http://` references fixed |
| Turso environment set up | ❌ Blocked | Installation issues |
| Benchmarks executed | ❌ Blocked | Waiting for environment |
| Vector index verified | ❌ Blocked | No Turso environment |
| Performance reports | ⚠️ Partial | Framework ready, no data |
| Setup instructions | ✅ Complete | HOW_TO_RUN_TURSO_LOCALLY.md updated |

---

## Quality Gates Status

### Environment Setup
- [x] Correct URL format documented (`libsql://`)
- [x] Environment variable support added
- [ ] Turso dev server running ❌
- [ ] Vector extensions verified ❌

### Benchmark Code
- [x] Uses `libsql://` protocol
- [x] Environment variables supported
- [x] Default to local dev server URL
- [x] Debug output shows connection details

### Vector Extension Verification
- [ ] vector32() function available ❌
- [ ] vector_top_k() function available ❌
- [ ] Vector index creation succeeds ❌
- [x] Verification added to benchmark

### Performance Validation
- [ ] Native vector search measured ❌
- [ ] 2-10x improvement over brute-force ❌
- [ ] O(log n) scaling behavior observed ❌
- [ ] Memory usage measured correctly ❌

### Documentation
- [x] Correct URL format (libsql://) used in docs
- [x] Setup instructions complete
- [x] Verification steps documented

---

## Conclusion

### What's Been Accomplished
1. ✅ Identified and fixed critical URL format issue in documentation
2. ✅ Updated benchmark code to use correct Turso protocol
3. ✅ Added environment variable support for flexible configuration
4. ✅ Added vector extension verification to detect wrong environment
5. ✅ Corrected all documentation references

### What's Still Needed
1. ❌ Actual Turso environment (cloud or local dev server)
2. ❌ Benchmark execution with vector extensions
3. ❌ Performance validation and measurement
4. ❌ Reports with actual VALID data

### Recommended Path Forward
**Use Option 1 (Turso Cloud)** - This is the fastest and most reliable path forward:
- No installation or compilation required
- Full vector support guaranteed
- Benchmarks can be executed immediately once credentials are obtained
- Provides realistic production-like performance data

### Time Investment Summary
- Research & Understanding: 45 minutes ✅
- Code Updates: 30 minutes ✅
- Documentation Fixes: 20 minutes ✅
- Environment Setup Attempts: 60 minutes ❌
- **Total Completed Work**: ~2 hours
- **Estimated Time to Complete Option 1**: 15-30 minutes (account creation + setup)
- **Estimated Time to Complete Option 2**: 15-30 minutes (complete build)

---

**Report Generated**: 2025-12-30
**Next Review**: After Turso environment setup is complete
**Blocking**: Phase 2 (Index Optimization) cannot start without valid Phase 1 data
