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CODITECT Development Studio v2.0 - Executive Summary

Date: 2026-01-31
Status: Architecture Complete, Ready for Implementation
Investment: $707K (14 weeks, 8 engineers)
Target Launch: May 2026

1. Vision​

CODITECT Development Studio v2.0 is a browser-based IDE with unified persistent workspaces where multiple AI agents (Claude, Gemini, Codex, Kimi) collaborate in real-time on shared codebases.

The Problem with v1.0​

  • ❌ 4 separate ephemeral sandboxes with 30-min timeouts
  • ❌ Cold starts of 5-10 seconds
  • ❌ Complex external routing
  • ❌ Data loss on timeout
  • ❌ Poor multi-agent collaboration

The v2.0 Solution​

  • ✅ 1 persistent workspace with 8-hour sessions
  • ✅ Zero cold start - always warm
  • ✅ In-workspace coordination - agents share context
  • ✅ GCS FUSE persistence - never lose work
  • ✅ SQLite + JSONL - ACID + audit trail

2. Architecture at a Glance​

┌─────────────────────────────────────────────────────────────────────────────┐
│                              CLIENT LAYER                                    │
│                    ┌─────────────────────────────────────┐                  │
│                    │   CODITECT Development Studio       │                  │
│                    │   ┌──────────┐  ┌────────────────┐  │                  │
│                    │   │  Multi-  │  │  Workspace     │  │                  │
│                    │   │  Agent   │  │  Timeline +    │  │                  │
│                    │   │  Chat    │  │  File Explorer │  │                  │
│                    │   └──────────┘  └────────────────┘  │                  │
│                    └─────────────────────────────────────┘                  │
└──────────────────────────┬──────────────────────────────────────────────────┘
                           │ WebSocket / HTTPS
┌──────────────────────────▼──────────────────────────────────────────────────┐
│                           EDGE LAYER (Cloudflare)                            │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐  ┌─────────────────────┐ │
│  │     CDN     │  │     WAF     │  │   Workers   │  │    Durable Objects  │ │
│  │             │  │             │  │   (API)     │  │  (Workspace Registry)│ │
│  └─────────────┘  └─────────────┘  └──────┬──────┘  └─────────────────────┘ │
└───────────────────────────────────────────┼──────────────────────────────────┘
                                            │
┌───────────────────────────────────────────┼──────────────────────────────────┐
│                      PERSISTENT COMPUTE LAYER                                │
│  ┌────────────────────────────────────────▼──────────────────────────────┐   │
│  │                     UNIFIED PERSISTENT WORKSPACE                         │   │
│  │                                                                          │   │
│  │  ┌──────────────┐  ┌──────────────┐  ┌──────────────┐  ┌──────────────┐ │   │
│  │  │    Claude    │  │    Gemini    │  │     Kimi     │  │     Codex    │ │   │
│  │  │    Agent     │  │    Agent     │  │    Agent     │  │    Agent     │ │   │
│  │  │   (editing)  │  │   (waiting)  │  │  (analyzing) │  │  (indexing)  │ │   │
│  │  └──────────────┘  └──────────────┘  └──────────────┘  └──────────────┘ │   │
│  │                                                                          │   │
│  │  Shared: task queue, file locks, message bus, SQLite cluster             │   │
│  │                                                                          │   │
│  └──────────────────────────────────────────────────────────────────────────┘   │
└───────────────────────────────────────────┬──────────────────────────────────────┘
                                            │ gcsfuse (bidirectional sync)
┌───────────────────────────────────────────▼──────────────────────────────────────┐
│                         GCS PRIMARY STORAGE                                       │
│  Bucket: coditect-workspaces-{org-id}                                             │
│  ├── organizations/{org-id}/teams/{team-id}/users/{user-id}/workspaces/{id}/      │
│  │   ├── projects/              ← Code repositories (FUSE mounted)               │
│  │   ├── databases/             ← SQLite files (~9GB per 1K users)               │
│  │   ├── sessions/              ← JSONL archives                                 │
│  │   └── vector-store/          ← Embeddings                                     │
│  └── [R2 MIRROR - Cross-region hot cache]                                         │
└───────────────────────────────────────────────────────────────────────────────────┘

3. Key Innovations​

3.1 Unified Persistent Workspace​

AspectBefore (v1.0)After (v2.0)
Containers4 ephemeral sandboxes1 persistent workspace
Lifetime30 minutes8+ hours, renewable
Cold Start5-10 seconds0 seconds
CoordinationExternal routingIn-workspace orchestrator

3.2 SQLite Database Cluster​

  • 6 databases per workspace: sessions, messages, artifacts, parsed_sessions, agent_metrics, workspace_idx
  • WAL mode for performance and durability
  • GCS sync every 30 seconds for disaster recovery
  • Query interface via WebSocket for real-time UI

3.3 Session JSONL Archive​

  • Append-only event log for complete audit trail
  • Event types: file_edit, agent_message, tool_call, checkpoint, agent_state_change
  • GCS persistence every 5 seconds
  • Stream replay for session timeline

3.4 Multi-Agent Coordination​

  • File locks prevent concurrent edits
  • Task queue per agent with priority
  • Message bus for agent-to-agent communication
  • Shared context reduces token waste

4. Business Case​

4.1 Value Proposition​

StakeholderBenefitMetric
DevelopersNever lose work, instant sessions10× productivity gain
TeamsReal-time collaboration4× faster delivery
EnterprisesComplete audit trailCompliance ready
PlatformSimplified architecture50% less ops overhead

4.2 Cost Analysis​

Infrastructure Cost (@ 1,000 users)​

Componentv1.0v2.0Change
Compute$1,200$4,200+250%
Storage (GCS)$200$1,460+630%
Storage (R2)$150$355+137%
Observability$150$1,800+1100%
TOTAL$3,200$9,500+197%

Target after Phase 5 optimization: $6,500 (+103%)

ROI Calculation​

MetricValue
Development cost$707K
Monthly savings per developer10 hours × $100/hr = $1,000
Annual savings per developer$12,000
Break-even59 developers
Payback period6 months @ 100 developers

4.3 Competitive Advantage​

FeatureCODITECT v2.0GitHub CopilotCursorSourcegraph
Multi-agent collaboration✅ 4 agents❌ 1❌ 1❌ 1
Persistent sessions✅ 8+ hours❌ Stateless❌ Stateless❌ Stateless
Zero cold start✅ < 1sN/A⚠️ ~5sN/A
Complete audit trail✅ JSONL❌ Limited❌ Limited⚠️ Partial
Self-hosted option✅ GKE❌ Cloud only❌ Cloud only✅ Enterprise

5. Implementation Timeline​

5.1 14-Week Roadmap​

Week:  1   2   3   4   5   6   7   8   9   10  11  12  13  14
       │   │   │   │   │   │   │   │   │   │   │   │   │
Phase 1: Foundation (Infrastructure, SQLite, GCS FUSE)
       [═══════════════════]

Phase 2: Agents (Orchestrator, 4 adapters, locks)
                           [═══════════════════]

Phase 3: Frontend (Multi-agent UI, timeline, locks)
                                               [══════════]

Phase 4: Migration (v1.0 → v2.0, zero downtime)
                                                           [══════]

Phase 5: Optimization (Performance, cost, GA)
                                                                   [══════]

Milestones:
● M0 (Week 4): Foundation complete
● M1 (Week 7): Agents working
● M2 (Week 9): Frontend complete
● M3 (Week 11): Migration complete
● M4 (Week 14): GA launch

5.2 Team Requirements​

RoleCountDurationCost
Platform Lead114 weeks$84K
Backend Engineers314 weeks$252K
Frontend Engineers214 weeks$168K
DevOps Engineer114 weeks$84K
QA Engineer114 weeks$84K
TOTAL814 weeks$672K

6. Risk Assessment​

6.1 Critical Risks​

RiskProbabilityImpactMitigation
GCS FUSE latencyMediumHighR2 hot mirror, local caching, GKE fallback
Cost overrunMediumHighAuto-sleep, aggressive optimization in Phase 5
SQLite corruptionLowCriticalWAL + GCS sync, automated backups, checksums
Migration data lossLowCriticalExtensive testing, blue-green deployment, instant rollback

6.2 Mitigation Investment​

MitigationCostTimeline
GKE Autopilot backup$5KWeek 1
Load testing infrastructure$10KWeek 12
Security audit$15KWeek 13
Migration tooling$20KWeek 10

7. Success Metrics​

7.1 Technical KPIs​

MetricTargetCurrent (v1.0)
Workspace startup< 30s5-10s (per sandbox)
Workspace reconnect< 1s5-10s
Agent task start< 500ms2-3s (routing)
File lock acquisition< 100msN/A
Availability99.9%99.5%
Data durability99.999%99.9%

7.2 Business KPIs​

MetricTarget
Cost per user @ 1K<$7/month
Developer satisfaction> 4.0/5
Feature adoption> 80% use multi-agent
Migration completion100% of v1.0 users
Revenue impact+$500K ARR in Year 1

8. Recommendation​

8.1 Go/No-Go Decision​

CriteriaStatusNotes
Architecture validated✅All documents complete, reviewed
Technical feasibility✅GCS FUSE + SQLite proven pattern
Budget approved⏳$707K requested
Team allocated⏳8 engineers needed
Timeline acceptable✅14 weeks to GA

Recommendation: PROCEED with Phase 1 (Foundation)

8.2 Immediate Next Steps​

  1. Architecture Review Board approval (Week 0)
  2. Budget allocation (Week 0)
  3. Team assignment (Week 0)
  4. Week 1 Kickoff (Infrastructure, GCS setup)

8.3 Decision Points​

WeekDecisionOptions
Week 2GCS FUSE performanceContinue / Pivot to GKE
Week 4SQLite cluster stabilityContinue / Simplify schema
Week 7Agent coordinationContinue / Reduce to 2 agents
Week 11Migration readinessProceed / Delay GA

9. Document Index​

Architecture Documents​

DocumentPurposeStatus
ADR-XXX-unified-persistent-architecture.mdArchitecture decision✅ Complete
CODITECT-UNIFIED-PERSISTENT-ARCHITECTURE.mdSystem architecture✅ Complete
moe-agents-c4-architecture-v2.mdC4 model (C4→C1)✅ Complete

Design Documents​

DocumentPurposeStatus
CODITECT-THIN-CLIENT-SDD-v2.mdSystem design✅ Complete
CODITECT-THIN-CLIENT-TDD-v2.mdTechnical design✅ Complete
CODITECT-THIN-CLIENT-ARDS-v2.mdRequirements✅ Complete

Planning Documents​

DocumentPurposeStatus
IMPLEMENTATION-ROADMAP-v2.0.md14-week plan✅ Complete
CODITECT-REVISED-ECONOMIC-MODEL.mdCost analysis✅ Complete

Legacy Documents (v1.0 - Superseded)​

DocumentNote
CODITECT-THIN-CLIENT-SDD.mdSuperseded by v2
CODITECT-THIN-CLIENT-TDD.mdSuperseded by v2
CODITECT-THIN-CLIENT-ARDS.mdSuperseded by v2
moe-agents-c4-architecture.mdSuperseded by v2

10. Contact​

RoleNameResponsibility
Architecture LeadTBDTechnical decisions
Product ManagerTBDFeature prioritization
Engineering ManagerTBDTeam coordination
DevOps LeadTBDInfrastructure

Document Status: Final - Ready for executive review
Next Review: Architecture Review Board, Week 0
Approved By: _________________ Date: _______