# HANDOFF.md — Session Handoff Document

## Last Updated
2026-03-13

## What Was Done This Session

### Session 10 (Current) — Anthropic-Compatible Proxy + Full Feature Integration

Built the **Prism Proxy** — an Anthropic-compatible API server that lets Claude Code use Prism as its backend. Claude Code connects to `localhost:8080` thinking it's Anthropic, while Prism routes every request across all configured providers.

**Architecture:**
```
Claude Code  →  Prism Proxy (localhost:8080)  →  Any AI Provider
                    ↓
              Translates Anthropic ↔ OpenAI format
              Routes intelligently (classifier + selector)
              Falls back through model chain on failure
              Caches, validates, learns, health-checks
```

**New files:**
- `src/prism/proxy/__init__.py` — Package marker
- `src/prism/proxy/server.py` (~1300 lines) — Core proxy server
- `src/prism/proxy/translator.py` (~300 lines) — Bidirectional message translation
- `tests/test_proxy/test_server.py` — 38 server tests
- `tests/test_proxy/test_translator.py` — 34 translator tests

**Modified files:**
- `src/prism/cli/app.py` — Added `prism serve` command with full component init
- `src/prism/cli/repl.py` — Autonomous agent system prompt, auto-verify, confidence escalation
- `src/prism/cli/prompt_enhancer.py` — Auto-context engine (file/git/structure gathering)
- `src/prism/providers/base.py` — Replaced decommissioned groq/mixtral-8x7b-32768
- `src/prism/providers/registry.py` — Fixed KeyNotFoundError in is_provider_available
- `pyproject.toml` — Added `proxy` optional dependency (aiohttp)

**All Prism features wired into proxy:**
1. Intelligent routing (TaskClassifier + ModelSelector)
2. Fallback chains with streaming fallback (validates first chunk)
3. Budget enforcement
4. Cost tracking
5. ResponseCache (caches identical non-tool requests)
6. AdaptiveLearner (improves routing over time)
7. HealthChecker (background provider monitoring every 5 min)
8. ResponseValidator (catches malformed outputs, redacts secrets)
9. Multi-agent: Cascade, MoA, Debate, Swarm, Parallel Consensus
10. Tool-aware routing (deprioritizes unreliable OpenRouter free models)

**Key fixes during testing:**
- Streaming fallback: validates first chunk before committing to SSE
- OpenRouter free models fail on tool use despite `supports_tools=True` — deprioritized
- `is_provider_available` now catches `KeyNotFoundError` instead of crashing
- `_init_proxy_components` passes correct constructor args to all components

## How to Use

**Terminal 1 — Start Prism proxy:**
```bash
cd "/Users/kethangoparapu/Downloads/Multi-API Intelligent Router CLI"
source .env
.venv/bin/python -m prism serve
```

**Terminal 2 — Claude Code through Prism:**
```bash
export ANTHROPIC_BASE_URL=http://localhost:8080
export ANTHROPIC_API_KEY=prism
claude --dangerously-skip-permissions
```

**Monitor endpoints:**
- `GET /health` — basic health check
- `GET /prism/status` — all features + available models
- `GET /prism/health` — provider health + cache stats + learning stats
- `GET /prism/cost` — cost tracking dashboard

## Current API Key Status

| Provider | Status |
|----------|--------|
| Groq | Working (llama-3.3-70b-versatile, llama-3.1-8b-instant) |
| Mistral | Working (mistral-small-latest, codestral-latest) |
| OpenRouter | Free models rate-limited, unreliable for tool use |
| Google/Gemini | Free tier quota exhausted (needs billing or wait) |
| DeepSeek | Insufficient balance (needs top-up) |
| OpenAI/Anthropic | No keys configured |

## Current State
- **Phase**: ALL PHASES COMPLETE (1-7) + Proxy
- **Venv**: `.venv/` in project root (Python 3.12.4)
- **Tests**: 5,785 + 72 proxy = ~5,857 passing
- **Proxy**: Fully functional, tested with Mistral and Groq

## What Needs to Happen Next
1. Top up DeepSeek ($2) or add OpenAI key for more reliable routing
2. Test with real Claude Code tasks (file editing, code generation)
3. Consider enabling Gemini billing for consistent availability
4. PyPI publication: `pip install prism-cli`
5. Reduce verbose auth debug logging (cosmetic)

## Previous Sessions
- Session 9: Orchestrator completion + project-size scalability (5,785 tests)
- Session 8: Multi-agent orchestrator integration (swarm, debate, moa, cascade)
- Session 7: REPL wiring + quality gaps + orchestrator modules
- Session 6: ALL Phase 5 intelligence enhancements (19-28)
- Session 5: Phase 5 enhancements (AEI, blame, arch, debug-memory, blast)
- Session 4: ALL 35 features across Phases 3-6 (4,079 tests)
- Session 3: Phase 2 implementation (1,503 tests)
- Session 2: Agent fixes (718 tests)
- Session 1: Scaffolding + core modules
