# Project Memory – PS_AI_Agent

> This file is committed to the repository so it is available on any machine.
> Claude Code reads it automatically at session start (via the auto-memory system)
> when the working directory is inside this repo.
> **Keep it under ~180 lines** – lines beyond 200 are truncated by the system.

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## Project Location
- Repo root: `<repo_root>/` (wherever this is cloned)
- UE5 project: `<repo_root>/Unreal/PS_AI_Agent/`
- `.uproject`: `<repo_root>/Unreal/PS_AI_Agent/PS_AI_Agent.uproject`
- Engine: **Unreal Engine 5.5** — Win64 primary target

## Plugins
| Plugin | Path | Purpose |
|--------|------|---------|
| Convai (reference) | `<repo_root>/ConvAI/Convai/` | gRPC + protobuf streaming to Convai API. Has ElevenLabs voice type enum in `ConvaiDefinitions.h`. Used as architectural reference. |
| **PS_AI_Agent_ElevenLabs** | `<repo_root>/Unreal/PS_AI_Agent/Plugins/PS_AI_Agent_ElevenLabs/` | Our ElevenLabs Conversational AI integration. See `.claude/elevenlabs_plugin.md` for full details. |

## User Preferences
- Plugin naming: `PS_AI_Agent_<Service>` (e.g. `PS_AI_Agent_ElevenLabs`)
- Save memory frequently during long sessions
- Goal: ElevenLabs Conversational AI integration — simpler than Convai, no gRPC
- Full original ask + intent: see `.claude/project_context.md`

## Key UE5 Plugin Patterns
- Settings object: `UCLASS(config=Engine, defaultconfig)` inheriting `UObject`, registered via `ISettingsModule`
- Module startup: `NewObject<USettings>(..., RF_Standalone)` + `AddToRoot()`
- WebSocket: `FWebSocketsModule::Get().CreateWebSocket(URL, TEXT(""), Headers)`
- Audio capture: `Audio::FAudioCapture` from the `AudioCapture` module
- Procedural audio playback: `USoundWaveProcedural` + `OnSoundWaveProceduralUnderflow` delegate
- Audio capture callbacks arrive on a **background thread** — always marshal to game thread with `AsyncTask(ENamedThreads::GameThread, ...)`
- Resample mic audio to **16000 Hz mono** before sending to ElevenLabs