Implements a flexible provider pattern that supports both Claude Agent SDK
and OpenAI Codex CLI, enabling future expansion to other AI providers
(Cursor, OpenCode, etc.) with minimal changes.
## Architecture Changes
### New Provider System
- Created provider abstraction layer with BaseProvider interface
- Model-based routing: model prefix determines provider
- `gpt-*`, `o*` → CodexProvider (subprocess CLI)
- `claude-*`, `opus/sonnet/haiku` → ClaudeProvider (SDK)
- Providers implement common ExecuteOptions interface
### New Files Created
- `providers/types.ts` - Shared interfaces (ExecuteOptions, ProviderMessage, etc.)
- `providers/base-provider.ts` - Abstract base class
- `providers/claude-provider.ts` - Claude Agent SDK wrapper
- `providers/codex-provider.ts` - Codex CLI subprocess executor
- `providers/codex-cli-detector.ts` - Installation & auth detection
- `providers/codex-config-manager.ts` - TOML config management
- `providers/provider-factory.ts` - Model-based provider routing
- `lib/subprocess-manager.ts` - Reusable subprocess utilities
## Features Implemented
### Codex CLI Integration
- Spawns Codex CLI as subprocess with JSONL output
- Converts Codex events to Claude SDK-compatible format
- Supports both `codex login` and OPENAI_API_KEY auth methods
- Handles: reasoning, messages, commands, todos, file changes
- Extracts text from content blocks for non-vision CLI
### Conversation History
- Added conversationHistory support to ExecuteOptions
- ClaudeProvider: yields previous messages to SDK
- CodexProvider: prepends history as text context
- Follow-up prompts maintain full conversation context
### Image Upload Support
- Images embedded as base64 for vision models
- Image paths appended to prompt text for Read tool access
- Auto-mode: copies images to feature folder
- Follow-up: combines original + new images
- Updates feature.json with image metadata
### Session Model Persistence
- Added `model` field to Session and SessionMetadata
- Sessions remember model preference across interactions
- API endpoints accept model parameter
- Auto-mode respects feature's model setting
## Modified Files
### Services
- `agent-service.ts`:
- Added conversation history building
- Uses ProviderFactory instead of direct SDK calls
- Appends image paths to prompts
- Added model parameter and persistence
- `auto-mode-service.ts`:
- Removed OpenAI model block restriction
- Uses ProviderFactory for all models
- Added image support in buildFeaturePrompt
- Follow-up: loads context, copies images, updates feature.json
- Returns to waiting_approval after follow-up
### Routes
- `agent.ts`: Added model parameter to /send endpoint
- `sessions.ts`: Added model field to create/update
- `models.ts`: Added Codex models (gpt-5.2, gpt-5.1-codex*)
### Configuration
- `.env.example`: Added OPENAI_API_KEY and CODEX_CLI_PATH
- `.gitignore`: Added provider-specific ignores
## Bug Fixes
- Fixed image path resolution (relative → absolute)
- Fixed Codex empty prompt when images attached
- Fixed follow-up status management (in_progress → waiting_approval)
- Fixed follow-up images not appearing in prompt text
- Removed OpenAI model restrictions in auto-mode
## Testing Notes
- Codex CLI authentication verified with both methods
- Image uploads work for both Claude (vision) and Codex (Read tool)
- Follow-up prompts maintain full context
- Conversation history persists across turns
- Model switching works per-session
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Added .automaker/ to .gitignore to prevent tracking of the entire directory.
- Deleted outdated files including app_spec.txt, categories.json, memory.md, clean-code.md, and gemini.md from the .automaker context.
- Enhanced the mcp-server-factory.js and spec-regeneration-service.js to enforce status management for new features, ensuring they default to "backlog" and clarifying status handling in comments.
- Introduced a new file browsing endpoint in fs.ts to improve directory navigation while maintaining security constraints.
- Added .automaker/images/ to .gitignore to prevent tracking of generated images.
- Deleted obsolete agent-output.md and feature.json files related to removed "Agent Tools" feature.
- Introduced a new script for uploading build artifacts to R2 and updating releases.json.
- Enhanced GitHub Actions workflow to include artifact uploads for different platforms.
- Added new scripts for server development and full application startup in package.json.
- Enhanced project management by checking for existing projects to avoid duplicates.
- Improved API integration with better error handling and connection checks in the Electron API.
- Updated UI components to reflect changes in project and session management.
- Refactored authentication status display to include more detailed information on methods used.
