Automate 14-Phase Implementations: Zero Hallucinations, No Human Intervention
Learn how to fully automate complex multi-phase feature implementations using Snipara + RLM-Runtime. From database schema to production code — clean code, passing tests, enforced patterns, and <2% hallucination rate without writing a single line manually.
Alex Lopez
Founder, Snipara
You have a 14-phase implementation plan. Database schema, API endpoints, authentication, billing integration, admin dashboard, tests, documentation. Traditionally, this takes weeks of human coding with endless context-switching. With Snipara + RLM-Runtime, you can automate the entire pipeline—clean code, passing tests, zero hallucinations, no human intervention required.
Key Takeaways
- Complete automation — From PRD to production code without human intervention
- Zero context drift — Each phase queries relevant docs, not 500K of noise
- Self-healing iterations — Failed tests trigger automatic fixes until green
- Enforced patterns — Team standards applied automatically via shared context
- <2% hallucination rate — Real function signatures, not invented APIs
The Vision: Hands-Off Implementation
Imagine describing a feature at 9 AM and returning at 5 PM to find it complete: database tables created, API endpoints built, tests passing, documentation written—all following your team's coding standards. This isn't science fiction. It's what happens when you combine:
Snipara (Context Layer)
- • Stores your implementation plan
- • Returns only relevant context per phase
- • Enforces team coding standards
- • Provides actual function signatures
RLM-Runtime (Execution Layer)
- • Executes code in Docker sandbox
- • Runs tests automatically
- • Iterates until tests pass
- • Logs full trajectory for audit
Real Scenario: Building a Multi-Tenant Billing System
Let's walk through automating a complex feature: a complete billing system with Stripe integration for a multi-tenant SaaS application. This involves:
- Database schema for subscriptions, invoices, and usage tracking
- Stripe integration with webhook handling
- Usage-based billing calculations
- Customer portal and admin dashboard
- Email notifications for billing events
- Comprehensive test coverage
The 14-Phase Implementation Plan
| Phase | Description | Est. Time | Dependencies |
|---|---|---|---|
| 1 | Database schema design (Prisma) | ~15 min | None |
| 2 | Stripe SDK setup and configuration | ~10 min | Phase 1 |
| 3 | Product and pricing model sync | ~20 min | Phase 2 |
| 4 | Subscription creation flow | ~25 min | Phase 3 |
| 5 | Webhook endpoint + event handling | ~30 min | Phase 4 |
| 6 | Usage tracking service | ~20 min | Phase 1 |
| 7 | Usage-based billing calculations | ~25 min | Phase 5, 6 |
| 8 | Invoice generation | ~20 min | Phase 7 |
| 9 | Payment failure handling | ~15 min | Phase 5 |
| 10 | Customer billing portal | ~30 min | Phase 4 |
| 11 | Admin billing dashboard | ~35 min | Phase 8 |
| 12 | Email notification service | ~20 min | Phase 5, 9 |
| 13 | Integration tests | ~40 min | All phases |
| 14 | API documentation | ~15 min | All phases |
The Automation Architecture
Here's how the system works at a high level:
Step-by-Step: Setting Up Automation
1. Upload Your Implementation Plan
First, upload your feature specification to Snipara:
# Upload the implementation planrlm_upload_document( path="docs/features/billing-system.md", content="""# Multi-Tenant Billing System## OverviewComplete Stripe integration with usage-based billing...## Phase 1: Database Schema- Create Subscription model with Stripe references- Create Invoice model with line items- Create UsageRecord model for metered billing...""")2. Generate the Execution Plan
# Let Snipara analyze and create optimal execution orderplan = rlm_plan( query="Implement billing system from docs/features/billing-system.md", max_tokens=16000, strategy="relevance_first" # Prioritize by dependency order)Returns: Topologically sorted phases with dependencies3. Run the Automation Loop
from rlm import RLMrlm = RLM( backend="anthropic", # or "openai", "litellm" environment="docker", # Full isolation max_depth=5, # Max iterations per phase snipara_api_key="rlm_...", snipara_project_slug="my-saas")# Execute all phasesfor phase in plan["phases"]: result = rlm.completion(f""" Execute: {phase['description']} Context from Snipara provides: - Relevant existing code patterns - Team coding standards (MANDATORY rules) - Actual function signatures to use Tasks: 1. Write implementation code 2. Write unit tests 3. Run tests with pytest 4. Fix any failures and re-run 5. Return only when ALL tests pass """) # Save progress for resume capability rlm_remember( type="context", content=f"Phase {phase['id']} complete: {result.summary}" )Why It Works: The Quality Guarantees
Zero Hallucinated APIs
Snipara returns your actual function signatures. The LLM sees createSubscription(userId, priceId) from your code, not a guessed API.
Enforced Team Standards
Shared context injects your coding standards into every query. “All API routes must use Zod validation” is applied automatically.
Self-Healing Iterations
Test failures trigger automatic fixes. The system iterates up to 5 times per phase until all tests pass.
Full Audit Trail
Every decision, code change, and test result is logged. You can review exactly what happened and why.
Measured Results
Deep Dive: Phase 5 (Webhook Handling)
Let's look at how one phase actually executes. Phase 5 implements Stripe webhook handling—a complex task requiring security, event routing, and idempotency.
What Snipara Returns (Context)
Query: “Stripe webhook implementation”
src/webhooks/stripe.ts:1-45 — Existing webhook structurelib/stripe/client.ts:12-34 — Stripe client initializationCODING_STANDARDS.md — MANDATORY: Verify webhook signaturessrc/db/queries/subscriptions.ts — Actual DB methodsTotal: 4,231 tokens (vs. 180K raw codebase)
The Iteration Loop in Action
Generated webhook handler → Ran tests → 3 failures: missing signature verification, wrong event types, no idempotency key
Added signature verification (from CODING_STANDARDS) → 2 failures remaining
Fixed event type handling → 1 failure: idempotency not implemented
Added idempotency using existing pattern from context → All 12 tests pass ✓
Key insight: The system didn't give up after failures. It used error messages as feedback and fixed issues iteratively—exactly like a human developer would, but in seconds instead of hours.
Production Automation Script
Here's a complete script you can use to automate multi-phase implementations:
#!/usr/bin/env python3"""Automated multi-phase implementation with Snipara + RLM-Runtime"""import jsonimport osfrom datetime import datetimefrom rlm import RLM# ConfigurationSNIPARA_API_KEY = os.environ["SNIPARA_API_KEY"]SNIPARA_PROJECT = os.environ["SNIPARA_PROJECT"]IMPLEMENTATION_DOC = "docs/features/billing-system.md"def run_automation(): # Initialize RLM with Snipara integration rlm = RLM( backend="anthropic", model="claude-sonnet-4-20250514", environment="docker", max_depth=5, snipara_api_key=SNIPARA_API_KEY, snipara_project_slug=SNIPARA_PROJECT, verbose=True ) # Step 1: Generate execution plan plan_result = rlm.completion(f""" Use rlm_plan to create execution plan for: {IMPLEMENTATION_DOC} Return the phases with dependencies as JSON. """) phases = json.loads(plan_result.response) print(f"Generated {len(phases)} phases") # Step 2: Execute each phase results = [] for i, phase in enumerate(phases, 1): print(f"\n{'='*50}") print(f"Phase {i}/{len(phases)}: {phase['name']}") print(f"{'='*50}") result = rlm.completion(f""" Execute Phase {i}: {phase['name']} Description: {phase['description']} IMPORTANT: 1. Query Snipara for relevant context FIRST 2. Follow ALL team coding standards 3. Write comprehensive tests 4. Run tests and iterate until ALL pass 5. Only return success when tests are green """) results.append({ "phase": i, "name": phase['name'], "success": result.success, "iterations": result.iterations, "tokens_used": result.tokens_used }) # Store progress for resume capability rlm.completion(f""" Use rlm_remember to save: Phase {i} ({phase['name']}) completed successfully Iterations: {result.iterations} category="implementation", type="context" """) # Summary print(f"\n{'='*50}") print("AUTOMATION COMPLETE") print(f"{'='*50}") successful = sum(1 for r in results if r['success']) print(f"Phases completed: {successful}/{len(phases)}") print(f"Total tokens: {sum(r['tokens_used'] for r in results):,}")if __name__ == "__main__": run_automation()When to Use This Approach
✓ Perfect For
- • Multi-phase features with clear specifications
- • CRUD operations and standard patterns
- • API endpoint implementations
- • Database migrations with related code
- • Test suite generation
- • Documentation generation
⚠ Consider Manual For
- • Novel algorithms requiring research
- • Security-critical cryptographic code
- • Performance-critical hot paths
- • Highly ambiguous requirements
- • Integration with undocumented APIs
Cost Breakdown
Running the 14-phase billing system implementation with Claude Sonnet:
| Component | Tokens | Cost |
|---|---|---|
| Snipara context queries (14 phases × ~5K) | ~70,000 input | $0.21 |
| LLM input (prompts + context) | ~200,000 input | $0.60 |
| LLM output (code + responses) | ~150,000 output | $2.25 |
| Iteration overhead (~2.5 avg) | ~100,000 total | $0.50 |
| Snipara Pro plan (monthly) | — | $19.00 |
| Total for feature | ~520,000 | ~$22.56 |
The Future of Implementation
Complex implementations don't have to mean weeks of manual coding. With Snipara's context optimization and RLM-Runtime's sandboxed execution, you can:
- Define once — Write your implementation plan as documentation
- Automate completely — Let the system execute phases with zero intervention
- Trust the output — Every line follows your patterns and passes your tests
The code is clean. The tests pass. The hallucinations are gone. And you didn't write a single line manually.
Ready to automate your next feature?
Start with 100 free Snipara queries. RLM-Runtime is open source.