foxhunt/AGENT_169_QUICK_REFERENCE.md

Agent 169 Quick Reference: Paper Trading Compilation Validation

Status: ⚠️ BLOCKED - Cargo lock prevents SQLx prepare Next Agent: 170 (Wait for lock, generate cache, validate)

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What Happened

1. ✅ Agent 157: Fixed SQL enum case (uppercase → lowercase)
2. ✅ Agent 159: Fixed SELECT * → explicit columns
3. ❌ Agent 158: Claimed to create SQLx cache file, DID NOT EXECUTE
4. ⚠️ Agent 169: Blocked by cargo build lock (29 concurrent processes)

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Current Blockers

Cargo Build Lock

$ cargo sqlx prepare
Blocking waiting for file lock on build directory
Command timed out after 2m 0s

Running Processes: 29 cargo/rustc processes

• cargo test --workspace --features cuda
• cargo test -p ml test_ppo_checkpoint
• cargo test -p ml --test e2e_mamba2_training

Solution: Wait for tests to complete (monitor with ps aux | grep cargo | wc -l)

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Missing SQLx Cache

$ ls -lh services/trading_service/.sqlx/
total 0  # Empty directory - Agent 158 failed to create cache

Required: Run cargo sqlx prepare from services/trading_service/ directory

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Next Steps (Agent 170)

1. Wait for Cargo Lock Release

# Monitor process count
watch 'ps aux | grep -E "(cargo|rustc)" | grep -v grep | wc -l'

# Proceed when count < 5

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2. Generate SQLx Cache

cd /home/jgrusewski/Work/foxhunt/services/trading_service
cargo sqlx prepare 2>&1 | tee /tmp/sqlx_prepare_output.txt

Expected Output:

• Connect to PostgreSQL
• Validate 3 SQL queries (SELECT, INSERT, UPDATE)
• Generate 3+ cache files in .sqlx/ directory

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3. Validate Cache Creation

ls -lh services/trading_service/.sqlx/
# Expect 3+ files: query-79da0f8f*.json, query-8a624f01*.json, query-3e230a0f*.json

Note: Hash 8a624f01* may differ from Agent 158's expectation (parameter binding change)

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4. Test Offline Compilation

SQLX_OFFLINE=true cargo check -p trading_service 2>&1

Expected: ✅ Compilation success, no "query data not found" errors

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5. Run Integration Tests

cargo test -p trading_service --test paper_trading_executor_tests -- --nocapture
cargo test -p trading_service --lib ensemble_audit_logger

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Code Changes Summary

File	Change	Status
paper_trading_executor.rs	to_lowercase() enum conversion	✅ Applied
ensemble_audit_logger.rs	SELECT * → explicit columns	✅ Applied
.sqlx/query-*.json	SQLx cache files	❌ Missing

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Key Queries Requiring Cache

1. Line 203: SELECT id, symbol, ... FROM predictions WHERE ...
2. Line 352: INSERT INTO orders (...) VALUES (..., $3::order_side, ...)
3. Line 384: UPDATE predictions SET order_id = $1 WHERE id = $2

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Technical Context

Why Agent 158's Cache Failed

Claimed: Created query-8a624f01*.json (377 bytes)

Reality: File does not exist (empty directory)

Lesson: Agent documented plan but didn't execute Write tool

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Why Cache Hash Changed

Before: prediction.ensemble_action (direct field)

After: side = prediction.ensemble_action.to_lowercase() (variable)

Impact: Parameter binding signature changed → new hash required

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PostgreSQL Enum Case Sensitivity

Problem: 'BUY' ≠ 'buy' in PostgreSQL order_side enum

Fix: Convert to lowercase before SQL insertion

let side = prediction.ensemble_action.to_lowercase();  // 'buy' or 'sell'
sqlx::query!("... $3::order_side ...", side)

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Environment Requirements

PostgreSQL

docker-compose up -d postgres
psql postgresql://foxhunt:foxhunt_dev_password@localhost:5432/foxhunt -c '\dt'

Required Tables:

• orders (with order_side enum: 'buy', 'sell')
• predictions (with ensemble_action VARCHAR)
• audit_logs (for ensemble audit logger)

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Environment Variables

export DATABASE_URL=postgresql://foxhunt:foxhunt_dev_password@localhost:5432/foxhunt
export RUST_LOG=info

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Success Criteria

• Cargo lock released (process count < 5)
• cargo sqlx prepare completes successfully
• 3+ cache files exist in services/trading_service/.sqlx/
• SQLX_OFFLINE=true cargo check -p trading_service succeeds
• Integration tests pass with real PostgreSQL
• No "query data not found" errors
• No SQL type mismatch errors

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Common Errors & Solutions

"query data not found in offline mode"

Cause: Missing cache file for SQL query

Fix: Run cargo sqlx prepare to regenerate cache

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"Blocking waiting for file lock on build directory"

Cause: Another cargo process is running

Fix: Wait for existing processes to complete or kill them:

pkill -9 cargo
pkill -9 rustc

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"type mismatch: expected enum order_side, found varchar"

Cause: Uppercase enum values ('BUY' vs 'buy')

Fix: Already applied in Agent 157 (to_lowercase())

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"SELECT * is not supported in offline mode"

Cause: PostgreSQL requires explicit column lists

Fix: Already applied in Agent 159 (explicit columns)

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Estimated Timeline

Current: 00:31 UTC (cargo lock active)

Expected:

• 00:35-00:40: Cargo lock releases
• 00:40-00:42: Run cargo sqlx prepare
• 00:42-00:45: Validate offline compilation
• 00:45-00:50: Integration tests
• 00:50: ✅ Complete

Total: 15-20 minutes from now

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Related Documentation

• AGENT_169_SUMMARY.md: Full analysis with technical details
• AGENT_157_SUMMARY.md: Enum case conversion fix
• AGENT_158_SUMMARY.md: SQLx cache creation (failed)
• AGENT_159_SUMMARY.md: SELECT * removal fix

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Last Updated: 2025-10-15 00:31 UTC Next Action: Wait for cargo lock → run cargo sqlx prepare → validate