Day 1 Execution Guide - Parallel Multi-Agent Kickoff

CODITECT Cloud Platform Deployment - First Day Protocol

---

Pre-Kickoff (Day 0 - 2 hours)

Human responsibility - complete before agents start work.

1. Create Backend Repository (1 hour)

# Create new repository
gh repo create coditect-ai/coditect-cloud-backend --private --clone

cd coditect-cloud-backend

# Initialize Python project
poetry init --name coditect-license-api --python "^3.11"
poetry add fastapi uvicorn sqlalchemy asyncpg redis aiogoogle pydantic-settings
poetry add --group dev pytest pytest-asyncio pytest-cov black ruff mypy

# Create directory structure
mkdir -p backend/{models,api/v1,services,utils}
mkdir -p tests/{unit,integration,e2e}
mkdir -p api docs scripts

# Create initial files
cat > backend/__init__.py << 'EOF'
"""CODITECT License Management API"""
__version__ = "0.1.0"
EOF

cat > .gitignore << 'EOF'
# Python
__pycache__/
*.py[cod]
*$py.class
.Python
venv/
.env
.venv/

# IDE
.vscode/
.idea/

# Testing
.coverage
htmlcov/
.pytest_cache/

# OpenTofu/Terraform
*.tfstate
*.tfstate.*
.terraform/
EOF

cat > README.md << 'EOF'
# CODITECT License Management API

FastAPI backend for floating concurrent license management.

## Status

Phase 2: Backend Development (Days 1-5)
- [x] Repository initialized
- [ ] FastAPI project setup
- [ ] Database models
- [ ] License endpoints
- [ ] Tests (80%+ coverage)

## Quick Start

```bash
poetry install
poetry run uvicorn backend.main:app --reload

Documentation

See docs/ for complete documentation. EOF

git add . git commit -m "chore: Initialize backend repository structure

🤖 Generated with Claude Code Co-Authored-By: Claude noreply@anthropic.com"

git push -u origin main

### 2. Add as Submodule to Parent (15 min)

```bash
cd /Users/halcasteel/PROJECTS/coditect-rollout-master/submodules/cloud

# Add backend as submodule
git submodule add https://github.com/coditect-ai/coditect-cloud-backend.git

# Update parent repo
cd ../..
git add .gitmodules submodules/cloud/coditect-cloud-backend
git commit -m "chore: Add coditect-cloud-backend submodule

Backend repository for FastAPI license management API.
Part of parallel execution strategy (Backend Stream).

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>"

git push

3. Setup GitHub Project Board (30 min)

# Create GitHub Project
gh project create --title "CODITECT Cloud Platform - Parallel Execution" --owner coditect-ai

# Add columns
gh project field-create --name "Workstream" --data-type "SINGLE_SELECT" --single-select-options "Infrastructure,Backend,Deployment,Security,Documentation"
gh project field-create --name "Day" --data-type "NUMBER"
gh project field-create --name "Agent" --data-type "SINGLE_SELECT" --single-select-options "cloud-architect,codi-code-architect,codi-devops-engineer,security-specialist,codi-documentation-writer"

# Add Day 1 tasks (Infrastructure Stream)
gh project item-add --title "Cloud KMS Module" --body "Create OpenTofu module for RSA-4096 signing key" --field-values '{"Workstream":"Infrastructure","Day":1,"Agent":"cloud-architect"}'
gh project item-add --title "Identity Platform Module" --body "Configure OAuth2 with Google/GitHub providers" --field-values '{"Workstream":"Infrastructure","Day":1,"Agent":"cloud-architect"}'

# Add Day 1 tasks (Backend Stream)
gh project item-add --title "FastAPI Project Setup" --body "Initialize FastAPI with SQLAlchemy async + Redis" --field-values '{"Workstream":"Backend","Day":1,"Agent":"codi-code-architect"}'
gh project item-add --title "API Contract Design" --body "Create OpenAPI spec for license API (CHECKPOINT 1)" --field-values '{"Workstream":"Backend","Day":1,"Agent":"codi-code-architect"}'

# Add Day 1 tasks (Deployment Stream)
gh project item-add --title "Dockerfile Skeleton" --body "Create multi-stage Dockerfile for FastAPI" --field-values '{"Workstream":"Deployment","Day":1,"Agent":"codi-devops-engineer"}'

# Add Day 1 tasks (Documentation Stream)
gh project item-add --title "Architecture Documentation" --body "Document parallel execution architecture" --field-values '{"Workstream":"Documentation","Day":1,"Agent":"codi-documentation-writer"}'

4. Schedule Checkpoints (15 min)

Create calendar events for 5 coordination checkpoints:

Checkpoint 1: API Contract Agreement
- Date: Day 1, 2:00 PM (2 hours)
- Attendees: Backend Stream + Infrastructure Stream
- Agenda: Review and agree on OpenAPI spec
- Location: GitHub Discussion (async) or Zoom (sync)

Checkpoint 2: Infrastructure Readiness
- Date: Day 2, 4:00 PM (1 hour)
- Attendees: Infrastructure → Backend + Deployment
- Agenda: Share credentials for Cloud KMS + Identity Platform
- Location: GitHub Discussion

Checkpoint 3: Backend Complete
- Date: Day 5, 4:00 PM (2 hours)
- Attendees: Backend → Deployment Stream
- Agenda: Tag v0.1.0-mvp release, notify deployment
- Location: GitHub Release

Checkpoint 4: Deploy to GKE (CRITICAL)
- Date: Day 7, 2:00 PM (4 hours)
- Attendees: ALL STREAMS
- Agenda: Deploy to production, run E2E tests
- Location: Zoom (synchronous)

Checkpoint 5: Client SDK Ready
- Date: Day 10, 4:00 PM (1 hour)
- Attendees: Backend → coditect-core team
- Agenda: Publish SDK, integration guide
- Location: GitHub Discussion

---

Day 1 Morning (9:00 AM - 12:00 PM)

Kickoff Meeting (9:00 AM - 9:15 AM)

Virtual standup via GitHub Discussion

Agenda:

1. Confirm agent assignments (2 min)

   • cloud-architect → Infrastructure Stream
   • codi-code-architect → Backend Stream
   • codi-devops-engineer → Deployment Stream
   • security-specialist → Infrastructure Stream (review)
   • codi-documentation-writer → Documentation Stream

2. Review parallel execution strategy (5 min)

   • 3 independent workstreams (no conflicts)
   • 5 coordination checkpoints
   • Git isolation strategy

3. Confirm Day 1 priorities (3 min)

   • CRITICAL: API Contract Agreement (Checkpoint 1, 2 PM)
   • All agents start work in parallel (9:15 AM)

4. Communication protocol (3 min)

   • GitHub Discussions for async updates
   • GitHub PR reviews for code collaboration
   • Checkpoints for synchronization

5. Questions? (2 min)

End meeting, begin work (9:15 AM)

---

Parallel Work Session 1 (9:15 AM - 12:00 PM)

Each agent works independently on their assigned tasks:

Infrastructure Stream (cloud-architect)

Task 1: Cloud KMS Module (9:15 AM - 12:15 PM, 3 hours)

cd coditect-cloud-infra/opentofu/modules

# Create KMS module
mkdir -p kms
cd kms

# Create main.tf
cat > main.tf << 'EOF'
# Cloud KMS Module - RSA-4096 License Signing Key

terraform {
  required_version = ">= 1.6.0"
  required_providers {
    google = {
      source  = "hashicorp/google"
      version = "~> 5.0"
    }
  }
}

# Key Ring
resource "google_kms_key_ring" "license_signing" {
  name     = var.key_ring_name
  location = var.region
}

# Crypto Key - RSA 4096 Asymmetric Sign
resource "google_kms_crypto_key" "license_signing_key" {
  name            = var.crypto_key_name
  key_ring        = google_kms_key_ring.license_signing.id
  rotation_period = var.rotation_period # 90 days

  purpose = "ASYMMETRIC_SIGN"

  version_template {
    algorithm        = "RSA_SIGN_PKCS1_4096_SHA256"
    protection_level = var.protection_level # SOFTWARE or HSM
  }

  lifecycle {
    prevent_destroy = true # Production safety
  }
}

# IAM: Grant GKE service account signing permission
resource "google_kms_crypto_key_iam_member" "license_api_signer" {
  crypto_key_id = google_kms_crypto_key.license_signing_key.id
  role          = "roles/cloudkms.signerVerifier"
  member        = "serviceAccount:${var.gke_service_account_email}"
}

# Output public key for verification
data "google_kms_crypto_key_version" "license_signing_key_version" {
  crypto_key = google_kms_crypto_key.license_signing_key.id
}
EOF

# Create variables.tf
cat > variables.tf << 'EOF'
variable "project_id" {
  description = "GCP project ID"
  type        = string
}

variable "region" {
  description = "GCP region for key ring"
  type        = string
  default     = "us-central1"
}

variable "key_ring_name" {
  description = "Name of the KMS key ring"
  type        = string
  default     = "license-signing-keyring"
}

variable "crypto_key_name" {
  description = "Name of the crypto key"
  type        = string
  default     = "license-signing-key"
}

variable "rotation_period" {
  description = "Key rotation period in seconds (90 days)"
  type        = string
  default     = "7776000s"
}

variable "protection_level" {
  description = "Protection level: SOFTWARE or HSM"
  type        = string
  default     = "SOFTWARE" # Use HSM for production
}

variable "gke_service_account_email" {
  description = "Email of GKE service account to grant signing permission"
  type        = string
}
EOF

# Create outputs.tf
cat > outputs.tf << 'EOF'
output "key_ring_id" {
  description = "ID of the KMS key ring"
  value       = google_kms_key_ring.license_signing.id
}

output "crypto_key_id" {
  description = "ID of the crypto key"
  value       = google_kms_crypto_key.license_signing_key.id
}

output "crypto_key_resource_name" {
  description = "Full resource name for API calls"
  value       = google_kms_crypto_key.license_signing_key.id
}

output "public_key_pem" {
  description = "Public key in PEM format for verification"
  value       = data.google_kms_crypto_key_version.license_signing_key_version.public_key[0].pem
  sensitive   = false # Public key is safe to expose
}
EOF

# Validate
tofu init
tofu validate
tofu fmt

# Create PR
cd ../../../../
git checkout -b feature/cloud-kms
git add opentofu/modules/kms/
git commit -m "feat(kms): Add Cloud KMS module for license signing

Deploys RSA-4096 asymmetric key for tamper-proof license signing.
Grants GKE service account signing permission.
Includes 90-day automatic rotation.

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>"

git push -u origin feature/cloud-kms
gh pr create --title "feat(kms): Add Cloud KMS module" --body "See commit message for details"

Expected Output: Pull request ready for review by 12:15 PM

---

Backend Stream (codi-code-architect)

Task 1: FastAPI Project Setup (9:15 AM - 12:15 PM, 3 hours)

cd coditect-cloud-backend

# Create main FastAPI application
cat > backend/main.py << 'EOF'
"""CODITECT License Management API

FastAPI application with async PostgreSQL (SQLAlchemy) and Redis.
"""
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from contextlib import asynccontextmanager
import logging

from backend.core.config import settings
from backend.core.database import init_db
from backend.core.redis import init_redis

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format='{"time":"%(asctime)s","level":"%(levelname)s","message":"%(message)s"}'
)
logger = logging.getLogger(__name__)


@asynccontextmanager
async def lifespan(app: FastAPI):
    """Startup and shutdown events"""
    # Startup
    logger.info("Starting CODITECT License API")
    await init_db()
    await init_redis()
    logger.info("Database and Redis connected")

    yield

    # Shutdown
    logger.info("Shutting down CODITECT License API")


app = FastAPI(
    title="CODITECT License Management API",
    description="Floating concurrent license management with Redis atomic seat counting",
    version="0.1.0",
    lifespan=lifespan,
    docs_url="/api/docs",  # Swagger UI at /api/docs
    redoc_url="/api/redoc"  # ReDoc at /api/redoc
)

# CORS middleware (configure for production)
app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.ALLOWED_ORIGINS,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


@app.get("/api/v1/health")
async def health_check():
    """Health check endpoint"""
    return {"status": "healthy", "version": "0.1.0"}


@app.get("/api/v1/ready")
async def readiness_check():
    """Readiness check (database + Redis connectivity)"""
    # TODO: Add actual database and Redis checks
    return {"status": "ready"}


if __name__ == "__main__":
    import uvicorn
    uvicorn.run("backend.main:app", host="0.0.0.0", port=8000, reload=True)
EOF

# Create settings module
mkdir -p backend/core
cat > backend/core/config.py << 'EOF'
"""Application settings using pydantic-settings"""
from pydantic_settings import BaseSettings
from typing import List


class Settings(BaseSettings):
    """Application settings loaded from environment variables"""

    # Database
    DATABASE_URL: str = "postgresql+asyncpg://user:pass@localhost/coditect_licenses"

    # Redis
    REDIS_URL: str = "redis://localhost:6379/0"

    # Cloud KMS (Phase 2)
    GCP_PROJECT_ID: str = "coditect-cloud-infra"
    KMS_KEY_RING: str = "license-signing-keyring"
    KMS_CRYPTO_KEY: str = "license-signing-key"
    KMS_LOCATION: str = "us-central1"

    # Identity Platform (Phase 2)
    IDENTITY_PLATFORM_API_KEY: str = ""

    # CORS
    ALLOWED_ORIGINS: List[str] = ["http://localhost:3000"]

    # Session Management
    SESSION_TTL_SECONDS: int = 360  # 6 minutes

    class Config:
        env_file = ".env"


settings = Settings()
EOF

# Create database module
cat > backend/core/database.py << 'EOF'
"""SQLAlchemy async database setup"""
from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

from backend.core.config import settings

# Async engine
engine = create_async_engine(
    settings.DATABASE_URL,
    echo=True,  # Log SQL queries (disable in production)
    future=True
)

# Async session factory
AsyncSessionLocal = sessionmaker(
    engine,
    class_=AsyncSession,
    expire_on_commit=False
)

# Base class for models
Base = declarative_base()


async def init_db():
    """Initialize database (create tables)"""
    async with engine.begin() as conn:
        await conn.run_sync(Base.metadata.create_all)


async def get_db():
    """Dependency for FastAPI routes"""
    async with AsyncSessionLocal() as session:
        yield session
EOF

# Create Redis module
cat > backend/core/redis.py << 'EOF'
"""Redis client for session management"""
import redis.asyncio as redis
from backend.core.config import settings

redis_client: redis.Redis = None


async def init_redis():
    """Initialize Redis connection"""
    global redis_client
    redis_client = await redis.from_url(settings.REDIS_URL, decode_responses=True)


async def get_redis():
    """Dependency for FastAPI routes"""
    return redis_client
EOF

# Create __init__.py files
touch backend/__init__.py backend/core/__init__.py

# Test FastAPI app
poetry run python backend/main.py &
FASTAPI_PID=$!
sleep 3

# Test health endpoint
curl http://localhost:8000/api/v1/health

# Kill test server
kill $FASTAPI_PID

# Commit
git add backend/
git commit -m "feat(backend): Initialize FastAPI project with async SQLAlchemy and Redis

- FastAPI application with lifespan events
- Async SQLAlchemy engine and session factory
- Redis client for session management
- Settings via pydantic-settings (env vars)
- Health and readiness check endpoints
- Structured JSON logging

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>"

git push

Expected Output: FastAPI server running by 12:15 PM, ready for API contract design

---

Deployment Stream (codi-devops-engineer)

Task 1: Dockerfile Skeleton (9:15 AM - 11:15 AM, 2 hours)

cd coditect-cloud-backend

# Create multi-stage Dockerfile
cat > Dockerfile << 'EOF'
# ==========================================
# Stage 1: Builder
# ==========================================
FROM python:3.11-slim as builder

WORKDIR /app

# Install Poetry
RUN pip install poetry==1.7.1

# Copy dependency files
COPY pyproject.toml poetry.lock ./

# Install dependencies (no dev dependencies)
RUN poetry config virtualenvs.in-project true && \
    poetry install --no-dev --no-interaction --no-ansi

# ==========================================
# Stage 2: Runtime
# ==========================================
FROM python:3.11-slim

WORKDIR /app

# Copy virtual environment from builder
COPY --from=builder /app/.venv /app/.venv

# Copy application code
COPY backend/ /app/backend/

# Set PATH to use virtual environment
ENV PATH="/app/.venv/bin:$PATH"

# Non-root user for security
RUN useradd -m -u 1000 fastapi && \
    chown -R fastapi:fastapi /app

USER fastapi

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/api/v1/health')"

# Start application
CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8000"]
EOF

# Create .dockerignore
cat > .dockerignore << 'EOF'
# Python
__pycache__/
*.pyc
.pytest_cache/
.coverage
htmlcov/

# Virtual environments
venv/
.venv/

# IDE
.vscode/
.idea/

# Git
.git/
.gitignore

# Documentation
docs/
*.md

# Tests
tests/
EOF

# Test Docker build (skeleton only, will fail due to missing deps)
docker build -t coditect-license-api:dev .

# Commit
git add Dockerfile .dockerignore
git commit -m "feat(docker): Add multi-stage Dockerfile for FastAPI

- Builder stage: Install Poetry dependencies
- Runtime stage: Minimal Python 3.11 slim image
- Non-root user for security
- Health check endpoint integrated
- .dockerignore for efficient builds

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>"

git push

Expected Output: Dockerfile ready by 11:15 AM

---

Documentation Stream (codi-documentation-writer)

Task 1: Architecture Documentation (9:15 AM - 11:15 AM, 2 hours)

cd coditect-cloud-infra

# Create parallel execution documentation
cat > docs/PARALLEL-EXECUTION-IMPLEMENTATION-LOG.md << 'EOF'
# Parallel Execution Implementation Log

**Day 1 Progress**

## 9:15 AM - Kickoff Complete

All agents assigned and working:
- Infrastructure Stream: Cloud KMS module in progress
- Backend Stream: FastAPI project setup in progress
- Deployment Stream: Dockerfile in progress
- Documentation Stream: This log created

## Work-in-Progress Updates

### Infrastructure Stream (cloud-architect)
- Status: Cloud KMS module
- ETA: 12:15 PM
- Blockers: None

### Backend Stream (codi-code-architect)
- Status: FastAPI project setup
- ETA: 12:15 PM
- Blockers: None

### Deployment Stream (codi-devops-engineer)
- Status: Dockerfile skeleton
- ETA: 11:15 AM
- Blockers: None

## Next: Checkpoint 1 (2:00 PM)

API Contract Agreement between Backend and Infrastructure streams.
EOF

git add docs/PARALLEL-EXECUTION-IMPLEMENTATION-LOG.md
git commit -m "docs: Start parallel execution implementation log

Daily log of agent progress during parallel execution.

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>"

git push

Expected Output: Documentation started by 11:15 AM

---

Day 1 Afternoon (1:00 PM - 5:00 PM)

Checkpoint 1: API Contract Agreement (2:00 PM - 4:00 PM, 2 hours) ⚠️ CRITICAL

Participants: Backend Stream + Infrastructure Stream Location: GitHub Discussion (async preferred) or Zoom (if needed)

Agenda:

1. Backend Stream presents draft OpenAPI spec (30 min)

cd coditect-cloud-backend

# Create API contract
mkdir -p api
cat > api/openapi.yaml << 'EOF'
openapi: 3.1.0
info:
  title: CODITECT License Management API
  version: 0.1.0
  description: Floating concurrent license management

servers:
  - url: https://api.coditect.ai
    description: Production
  - url: http://localhost:8000
    description: Development

components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT  # From Identity Platform

  schemas:
    LicenseAcquireRequest:
      type: object
      required:
        - hardware_id
      properties:
        hardware_id:
          type: string
          description: Unique machine identifier

    LicenseAcquireResponse:
      type: object
      properties:
        license_token:
          type: string
          description: Signed license token (verify locally)
        public_key_pem:
          type: string
          description: Public key for signature verification
        expires_at:
          type: string
          format: date-time
        session_id:
          type: string
          format: uuid

security:
  - BearerAuth: []

paths:
  /api/v1/licenses/acquire:
    post:
      summary: Acquire license seat
      description: Atomic seat check and license token signing
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LicenseAcquireRequest'
      responses:
        '200':
          description: License acquired successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LicenseAcquireResponse'
        '403':
          description: No seats available
        '401':
          description: Unauthorized (invalid JWT)

  /api/v1/licenses/heartbeat/{session_id}:
    put:
      summary: Session heartbeat (keep-alive)
      parameters:
        - name: session_id
          in: path
          required: true
          schema:
            type: string
            format: uuid
      responses:
        '200':
          description: Heartbeat successful, TTL extended
        '404':
          description: Session not found

  /api/v1/licenses/release/{session_id}:
    delete:
      summary: Release license seat
      parameters:
        - name: session_id
          in: path
          required: true
          schema:
            type: string
            format: uuid
      responses:
        '204':
          description: Seat released successfully
        '404':
          description: Session not found
EOF

git add api/openapi.yaml
git commit -m "docs(api): Define license API contract (OpenAPI 3.1)

Draft specification for Checkpoint 1 review.

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>"

git push

2. Infrastructure Stream reviews for OAuth2 compliance (30 min)

Key questions:

• Does JWT flow match Identity Platform configuration?
• Are security headers correct (Bearer token)?
• Do error codes align with OAuth2 spec (401 vs 403)?

3. Joint refinement (30 min)

Agree on:

• JWT token structure (claims: user_id, tenant_id, exp)
• Error response format
• Rate limiting headers
• API versioning strategy

4. Final approval and commit (30 min)

# Backend Stream creates PR
cd coditect-cloud-backend
git checkout -b feature/api-contract
git add api/openapi.yaml
git commit -m "docs(api): API contract approved (Checkpoint 1)

Agreed upon by Backend + Infrastructure streams.
Ready for implementation.

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>"

git push
gh pr create --title "API Contract (Checkpoint 1)" --body "See commit"

# Merge after approval
gh pr merge --merge

Success Criteria: OpenAPI spec committed to main branch by 4:00 PM

---

Post-Checkpoint Work (4:00 PM - 5:00 PM)

All agents update progress in GitHub Discussion:

## Day 1 End-of-Day Status

### Infrastructure Stream (cloud-architect)
- ✅ Cloud KMS module complete (PR merged)
- ⏸️ Identity Platform module (Day 2 task)
- Next: Deploy Cloud KMS (Day 2, 9 AM)

### Backend Stream (codi-code-architect)
- ✅ FastAPI project setup complete
- ✅ API contract agreed (Checkpoint 1)
- Next: Database models (Day 2, 9 AM)

### Deployment Stream (codi-devops-engineer)
- ✅ Dockerfile skeleton complete
- Next: Multi-stage Dockerfile (Day 2, 9 AM)

### Documentation Stream (codi-documentation-writer)
- ✅ Parallel execution log started
- Next: Continue logging daily progress

### Blockers
None

### Risks
None identified

### Day 2 Preview
Morning: All agents start work independently (no coordination)
Afternoon: Infrastructure Stream deploys Cloud KMS + Identity Platform

---

Success Criteria for Day 1

By 5:00 PM, all of these must be true:

• coditect-cloud-backend repository created and operational
• Cloud KMS module implemented (PR merged)
• FastAPI project running locally (health endpoint works)
• Dockerfile skeleton exists (builds successfully)
• API Contract Agreement (Checkpoint 1) complete
• OpenAPI spec committed to main branch
• All agents have updated GitHub Project board
• No blocking issues identified

If ANY criteria not met: Extend Day 1 by 1 day, reassess parallel strategy.

---

Troubleshooting

Issue: API Contract Agreement Takes Longer Than 2 Hours

Solution: Extend Checkpoint 1 to 3 hours, delay Day 2 start by 1 hour.

Root Cause: Backend and Infrastructure teams had different assumptions about OAuth2 flow.

Prevention: Pre-checkpoint alignment meeting (30 min before formal checkpoint).

Issue: Backend Stream Blocked on Database Setup

Solution: Use SQLite for Day 1 development, switch to PostgreSQL Day 2.

Root Cause: Cloud SQL not accessible from local environment.

Prevention: VPN or Cloud SQL Proxy setup during Day 0 (pre-kickoff).

Issue: Merge Conflict in .gitignore

Solution: Backend Stream owns .gitignore, Deployment Stream creates .dockerignore.

Root Cause: Both streams editing same file.

Prevention: Directory isolation strategy (this should not happen with proper isolation).

---

Next: Day 2 Execution Guide

See: DAY-2-EXECUTION-GUIDE.md (to be created)

Preview:

• Infrastructure Stream: Deploy Cloud KMS + Identity Platform
• Backend Stream: Database models + tests
• Deployment Stream: Multi-stage Dockerfile
• Checkpoint 2: Infrastructure Readiness (Day 2, 4 PM)

---

Day 1 Execution Guide Version: 1.0 Date: 2025-11-30 Status: Ready for Use Next Action: Complete Day 0 pre-kickoff tasks