Philosophy: Plan → Checkpoint → Validate → Backtrack if needed → Iterate
Each checkpoint includes:
- Plan: Clear objectives and acceptance criteria
- Execute: Implement with tests
- Validate: Run tests, verify functionality
- Commit:
git commitwith descriptive message - Backtrack Option: Revert if validation fails
Commit: f52d6fa
- Analyze MySQL schema (152 tables)
- Analyze Perl codebase (318 modules)
- Create Postgres migration (22 tables)
- Set up Cargo workspace
- Implement database layer
- Validation: Schema loads, models compile
- Backtrack: None needed ✅
Commit: 6ec6524
- Create pm2 ecosystem (8 agents)
- Implement captain orchestrator
- Create specialist agent workers
- Set up OpenTofu k0s infrastructure
- Create deployment documentation
- Validation: Agents start, infrastructure provisions
- Backtrack: None needed ✅
Branch: feature/customer-module
Estimated: 1-2 days
Plan:
- Create
crates/customer/src/lib.rs - Define
Customerstruct with all fields from Perl - Implement basic CRUD operations with SQLx
- Add unit tests for each operation
- Create integration tests with testcontainers
Acceptance Criteria:
- Customer struct matches CUSTOMER.pm fields
- All CRUD operations work against Postgres
- Unit tests pass (>80% coverage)
- Integration tests pass with real DB
Validation Steps:
cargo test --package commercerack-customer
cargo clippy -- -D warnings
cargo build --releaseBacktrack Plan: If tests fail or design issues found:
git reset --hard HEAD~1
# Review Perl implementation again
# Adjust Rust design
# Retry with new approachBranch: feature/customer-auth
Depends on: Checkpoint 2.1
Plan:
- Implement password hashing with argon2
- Add salt generation per customer
- Create authentication methods
- Add session management
- Write security tests
Acceptance Criteria:
- Passwords hashed with argon2id
- Unique salt per customer
- Login/logout methods work
- Session tokens generated (JWT ready)
- Security audit passes
Validation Steps:
cargo test customer::auth
# Run security agent analysis
pm2 trigger security-agent analyzeBacktrack Plan:
git reset --soft HEAD~1
# Review security recommendations
# Adjust crypto implementationBranch: feature/customer-addresses
Depends on: Checkpoint 2.1
Plan:
- Create
CustomerAddressmodel - Implement address CRUD
- Add address type enum (SHIP, BILL, etc.)
- Link to customer records
- Test multi-address scenarios
Acceptance Criteria:
- Address model complete
- Multiple addresses per customer
- Address types properly validated
- Tests cover edge cases
Validation Steps:
cargo test customer::addressBranch: feature/product-catalog
Estimated: 2-3 days
Plan:
- Create
crates/product/ - Translate PRODUCT.pm to Rust
- Implement YAML/JSON serialization
- Add product options (POGs)
- Create comprehensive tests
Acceptance Criteria:
- Product struct complete
- YAML data fields work
- Options/variations supported
- Tests pass
Validation Steps:
cargo test --package commercerack-product
# Test with sample product data from PerlBacktrack Plan:
git stash
# Re-examine Perl POG structure
# Redesign Rust approach
git stash popBranch: feature/sku-lookup
Depends on: Checkpoint 3.1
Plan:
- Implement
SkuLookupmodel (60+ fields!) - Add inventory tracking
- Amazon integration fields
- Repricing strategy support
- Performance tests
Acceptance Criteria:
- All 60+ SKU fields mapped
- Inventory quantities tracked
- Indexes perform well
- Bulk operations efficient
Validation Steps:
cargo test sku::lookup
# Benchmark bulk operations
cargo benchBranch: feature/axum-api
Estimated: 1 day
Plan:
- Create
jsonapi/binary crate - Set up Axum router
- Add middleware (logging, CORS, auth)
- Create health check endpoint
- Docker build test
Acceptance Criteria:
- Server starts on port 8000
- Health check responds
- Middleware chain works
- Docker build succeeds
Validation Steps:
cargo run --bin jsonapi
curl http://localhost:8000/health
docker build -t commercerack-rust .Backtrack Plan:
git reset HEAD~1
# Review Axum patterns
# Simplify middleware setupBranch: feature/api-customers
Depends on: Checkpoints 2.1, 4.1
Plan:
- Add
/v1/customersroutes - Implement GET, POST, PUT, DELETE
- Add request validation
- Create response DTOs
- Integration tests
Acceptance Criteria:
- All CRUD endpoints work
- Validation rejects bad input
- Error handling consistent
- Integration tests pass
Validation Steps:
cargo test api::customers
# Manual API testing
curl -X POST http://localhost:8000/v1/customers \
-H "Content-Type: application/json" \
-d '{"email":"test@example.com"}'Branch: feature/cart-model
Estimated: 3-4 days (complex!)
Plan:
- Create
crates/cart/ - Translate CART2.pm structure (12,630 LOC 😱)
- Break into sub-modules:
- cart/items
- cart/pricing
- cart/shipping
- cart/tax
- Progressive implementation
- Extensive tests
Acceptance Criteria:
- Cart struct complete
- Item management works
- Sub-modules well organized
- Unit tests >70% coverage
Validation Steps:
cargo test --package commercerack-cart
# Test with Perl test casesBacktrack Plan:
# If cart design too complex
git reset --hard feature/cart-model~1
# Simplify: MVP first, features later
# Restart with minimal cartBranch: feature/cart-calculations
Depends on: Checkpoint 5.1
Plan:
- Implement subtotal calculation
- Add tax calculation
- Shipping cost integration
- Discount/promo codes
- Performance benchmarks
Acceptance Criteria:
- Calculations match Perl results
- Performance <50ms for typical cart
- Edge cases handled
- Benchmarks documented
Validation Steps:
cargo test cart::calculations
cargo bench --bench cart_perf
# Compare with Perl baselineBranch: feature/payment-trait
Estimated: 1 day
Plan:
- Create
crates/payment/ - Define
PaymentGatewaytrait - Add common error types
- Create mock implementation
- Design auth/capture/refund flow
Acceptance Criteria:
- Trait well-defined
- Mock gateway works
- Error handling complete
- Tests pass
Validation Steps:
cargo test payment::mockBranch: feature/authorizenet
Depends on: Checkpoint 6.1
Plan:
- Implement AuthorizeNet gateway
- Add API client (reqwest)
- Transaction creation
- Refund/void operations
- Integration tests (sandbox)
Acceptance Criteria:
- API client works
- Charge succeeds (sandbox)
- Refunds work
- Tests use sandbox credentials
Validation Steps:
cargo test payment::authorizenet
# Sandbox integration test
AUTHNET_SANDBOX=true cargo test --test integrationBacktrack Plan:
git checkout feature/payment-trait
# Adjust trait if needed
# Restart gateway implementationBranch: feature/ebay-schema
Estimated: 1 day
Plan:
- Create
migrations/002_ebay_tables.sql - Migrate 9 eBay tables
- Convert ENUMs, fix dates
- Add indexes
- Test migration
Acceptance Criteria:
- All 9 eBay tables created
- Migration runs cleanly
- Indexes present
- Rollback works
Validation Steps:
psql commercerack < migrations/002_ebay_tables.sql
psql commercerack -c "\dt ebay*"
# Test rollback
psql commercerack < migrations/002_ebay_tables_down.sqlBacktrack Plan:
# If migration fails
psql commercerack < migrations/002_ebay_tables_down.sql
# Fix issues
# Re-applyIterative: Break into 10-15 table batches Estimated: 1 week
Plan: Create migrations 003-010 for remaining tables:
- 003: Supplier tables (6 tables)
- 004: Shipping tables (8 tables)
- 005: Warehouse tables (3 tables)
- 006: Marketing tables (10 tables)
- 007: Google/Sears marketplaces (5 tables)
- 008: Reporting tables (15 tables)
- 009: Miscellaneous infrastructure (20 tables)
- 010: Legacy/archive tables (remaining)
Per-migration Validation:
psql commercerack < migrations/00X_*.sql
psql commercerack -c "\dt" | wc -l # Table count
# Rollback test
psql commercerack < migrations/00X_*_down.sql# 1. Create feature branch
git checkout -b feature/checkpoint-name
# 2. Plan in detail (write acceptance criteria)
# 3. Write tests FIRST (TDD)
# 4. Implement feature
# 5. Run validation
# 6. If validation PASSES:
git add .
git commit -m "Checkpoint: Feature name
Acceptance criteria:
- [x] Criterion 1
- [x] Criterion 2
Validation:
- cargo test passed
- benchmarks acceptable
- security audit clean
"
# 7. If validation FAILS:
git reset --hard HEAD # Nuclear option
# OR
git reset --soft HEAD~1 # Keep changes, redo commit
# OR
git stash # Save for later analysis
# OR
git revert HEAD # Explicit undo commit-
cargo testpasses (all crates) -
cargo clippyno warnings -
cargo build --releasesucceeds - Integration tests pass
- Performance acceptable (if applicable)
- Security review (if applicable)
- Documentation updated
# View checkpoint history
git log --oneline --graph
# Return to specific checkpoint
git checkout <commit-hash>
# Create new branch from checkpoint
git checkout -b feature/new-approach <commit-hash>
# Compare checkpoints
git diff checkpoint-1 checkpoint-2
# Cherry-pick successful changes
git cherry-pick <commit-hash>Completed Checkpoints: 2
- ✅ 1.1: Repository Setup (f52d6fa)
- ✅ 1.2: Multi-Agent Infrastructure (6ec6524)
Next Checkpoint: 2.1 Customer Module Foundation Estimated Start: When infrastructure deployment validated Estimated Duration: 1-2 days
Branch Strategy:
main (protected)
└── claude/perl-to-rust-b00t-01KhRNNMTqUTNuksyRwUnPW2 (current work)
├── feature/customer-module (next)
├── feature/customer-auth
├── feature/product-catalog
└── ... (future features)
| Phase | Checkpoints | Tests | Coverage | Performance |
|---|---|---|---|---|
| Phase 1 | 2/2 ✅ | N/A | N/A | N/A |
| Phase 2 | 0/3 | TBD | >80% | <100ms/op |
| Phase 3 | 0/2 | TBD | >70% | <50ms/query |
| Phase 4 | 0/2 | TBD | >80% | <200ms/req |
| Phase 5 | 0/2 | TBD | >70% | <50ms/calc |
| Phase 6 | 0/2 | TBD | >75% | <500ms/txn |
| Phase 7 | 0/2 | N/A | N/A | N/A |
# Return to last known good checkpoint
git reset --hard <last-good-commit>
# Re-analyze Perl implementation
# Create new design document
# Start fresh feature branch# Keep implementation but benchmark
git stash
# Profile and identify bottleneck
# Optimize specific function
git stash pop
# Re-run benchmarks# Bisect to find breaking commit
git bisect start
git bisect bad HEAD
git bisect good <last-known-good>
# Git will checkout commits to test
cargo test && git bisect good || git bisect bad
# Once found, analyze and fixRoadmap Philosophy:
"Plan step-by-step, checkpoint frequently, validate rigorously, backtrack fearlessly." 🥾
Each checkpoint is a stable platform to either advance or retreat from. No work is wasted - even failed checkpoints teach us what NOT to do.