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-# Dependency Slimming: pydantic-ai → pydantic-ai-slim
-
-**Date**: 2025-12-13
-**Version**: Post v1.2.0
-
-## Change
-
-Switched from `pydantic-ai` to `pydantic-ai-slim[openai]` to reduce container image size.
-
-### Before
-```
-pydantic-ai>=1.27,<1.28
-```
-
-This installs SDKs for ALL LLM providers:
-- anthropic
-- boto3 + botocore (AWS Bedrock)
-- cohere
-- google-genai + google-auth
-- groq
-- huggingface-hub
-
-Total packages: ~158
-
-### After
-```
-pydantic-ai-slim[openai]>=1.27,<1.28
-```
-
-Only installs the OpenAI-compatible SDK. Ollama works through this interface.
-
-Expected packages: ~80-90 (significant reduction)
-
-## Why This Works
-
-Tatlock uses Ollama exclusively, which implements the OpenAI-compatible API. The code uses:
-```python
-from pydantic_ai.models.openai import OpenAIChatModel
-from pydantic_ai.providers.ollama import OllamaProvider
-
-model = OpenAIChatModel(
-    model_name=config.OLLAMA_DEFAULT_MODEL,
-    provider=OllamaProvider(base_url=f"{config.OLLAMA_HOST}/v1")
-)
-```
-
-This pattern only requires the `openai` extra, not the full pydantic-ai package.
-
-## Rollback Instructions
-
-If this change breaks things:
-
-1. Revert requirements.txt:
-```diff
-- pydantic-ai-slim[openai]>=1.27,<1.28
-+ pydantic-ai>=1.27,<1.28
-```
-
-2. Reinstall dependencies:
-```bash
-pip install -r requirements.txt
-```
-
-3. Delete this file once confirmed stable.
-
-## Testing Checklist
-
-- [ ] Unit tests pass
-- [ ] Integration tests pass (with Ollama running)
-- [ ] Wakeup script e2e test passes
-- [ ] Container builds successfully
-- [ ] Container runs correctly