ChatGPT OAuth Integration: Secure browser authorization with automatic tier detection (Free: luna, gpt-4o-mini; Plus/Pro/Business: terra, sol, gpt-4o, o1, o3-mini).
Custom AI Provider: OpenAI-compatible custom endpoints (OpenRouter, DeepSeek, Together AI, local vLLM/Ollama) with Multi-Stage Verification:
- Stage 1: URL reachability test.
- Stage 2: Lightweight probe test (max_tokens: 10, thinking disabled).
- Stage 3: Error logs with one-click full sanitized request log copier.
- Stage 4: Context window token budgeting (8k to 1M) preserving up to 8,000 characters per message.
Built-in Connectors: Direct API key connectors for OpenAI, Anthropic Claude (with Claude 3.7 reasoning tokens), Google Gemini, and Ollama.
Dual Triggers:
1. Pinned Header AI Button: Top-right AI action button next to the pinned message bar.
2. Unread Badge Long-Press: Long-press on floating unread badge or unread divider in chat with auto-filled message count.
3. Chat Action Bar Menu: Fallback action item for universal accessibility.
Animated Progress Widget: Dynamic in-header pulsing progress indicator that shrinks PinnedMessageView to prevent text overlap.
Live Thinking Stream Preview: Real-time streaming inspector for reasoning and thought process tokens (reasoning_content, <think>...</think>, delta.thought). Can be toggled off in settings to save mobile bandwidth.
Per-Chat Customization: Pre-request bottom sheet with message count slider, style chips (Brief, Detailed, Key Highlights, Custom), and per-chat prompt override.
Rich Result Dialog: Formatted Markdown rendering with Share, Copy Summary, Copy Full Prompt & Data, Regenerate, and Insert into Chat Composer.
Localization: Full English (en) and Russian (ru) translations.

Project Structure

exteragram-chat-summaries/
├── ai_chat_summary.plugin       # Main entrypoint & metadata header
├── build.py                     # Standalone bundler & syntax validator
├── src/
│   ├── config.py                # Configuration constants & model tiers
│   ├── localization.py          # LocalizationManager (EN/RU dictionaries)
│   ├── providers/
│   │   ├── base.py              # Base provider interface, debug logger, prompt builder
│   │   ├── oauth.py             # ChatGPT OAuth handler & tier mapper
│   │   ├── custom.py            # Custom provider with multi-stage verification
│   │   ├── builtin.py           # OpenAI, Anthropic, Gemini, Ollama direct handlers
│   │   └── dispatcher.py        # Unified dispatcher & live streaming state manager
│   ├── services/
│   │   └── message_fetcher.py   # TLRPC history pagination & media formatting
│   ├── ui/
│   │   ├── settings.py          # Dynamic settings layout & verification dialogs
│   │   ├── pre_request.py       # Pre-request bottom sheet & prompt customizer
│   │   ├── progress_widget.py   # In-header progress widget & pinned view shrinker
│   │   ├── thinking_sheet.py    # Live streaming reasoning viewer
│   │   └── summary_dialog.py    # Markdown result presentation & error log viewer
│   └── hooks/
│       ├── pinned_hook.py       # PinnedMessageView top bar hook
│       └── unread_hook.py       # ChatUnreadCell & floating badge long-press hook
├── tests/
│   └── test_plugin.py           # Unit & simulation test suite
└── dist/
    └── ai_chat_summary.plugin   # Bundled single-file distributable artifact

Bundling & Testing

To bundle into a single-file distributable artifact:

python3 build.py

To run the unit and simulation test suite:

python3 -m unittest discover -s tests -v