# repomemory
**Your codebase never forgets.**
AI agents lose context every session. repomemory fixes that — one command creates a persistent, searchable knowledge base that any AI tool can read, search, and write to.
[](https://www.npmjs.com/package/repomemory)
[](https://www.npmjs.com/package/repomemory)
[](https://github.com/DanielGuru/repomemory/blob/main/LICENSE)
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```bash
npx repomemory go
```
---
## The Problem
Every time you open a project with Claude Code, Cursor, Copilot, or any AI coding agent:
- It re-discovers your architecture from scratch
- It proposes changes that were already debated and rejected
- It re-introduces bugs that were already fixed
Your `CLAUDE.md` / `.cursorrules` helps, but it's static and gets stale.
## The Solution
```
.context/
├── index.md ← Quick orientation (loaded every session)
├── facts/ ← Architecture, database, deployment
├── decisions/ ← "We chose Drizzle over Prisma because..."
├── regressions/ ← "This broke before. Here's what happened."
├── preferences/ ← Your coding style — follows you across all repos
├── sessions/ ← Auto-captured AI session summaries
└── changelog/ ← Monthly git history syncs
```
**Facts** tell agents how things work. **Decisions** prevent re-debating. **Regressions** prevent re-breaking. **Preferences** teach agents how you code.
## Quick Start
### With an API key (Claude Code, terminal workflows)
```bash
npx repomemory go
```
One command: sets up global profile, creates `.context/`, configures Claude Code + Cursor, runs AI analysis, prints CLAUDE.md instructions.
### With Cursor (no API key needed)
```bash
npx repomemory setup cursor
```
This installs everything Cursor needs:
- **MCP server** in `~/.cursor/mcp.json` (auto-starts repomemory in every project)
- **Rules** in `.cursor/rules/repomemory.mdc` (teaches Cursor's AI to use context)
- **6 commands** in `.cursor/commands/` (run with `/` in Cursor chat)
Then in Cursor chat, type:
```
/repomemory-analyze
```
Cursor's own AI scans your repo and populates `.context/` via the MCP tools. No external API key required — your Cursor subscription handles it.
**Available Cursor commands:**
| Command | What it does |
|---------|-------------|
| `/repomemory-analyze` | Full repo analysis — populates facts, decisions, index |
| `/repomemory-orient` | Quick orientation at start of session |
| `/repomemory-search` | Search the knowledge base |
| `/repomemory-record` | Record a fact, decision, or regression |
| `/repomemory-session` | Save a session summary |
| `/repomemory-status` | Show context coverage |
### Guided wizard
```bash
npx repomemory wizard
```
Walks through provider selection, tool integration, and first analysis. If no API keys are detected, offers a **"None — I use Cursor"** option that skips external analysis entirely.
### Non-interactive (CI-safe)
```bash
npx repomemory go --yes --provider anthropic --embedding-provider gemini --max-files 80
```
No prompts when `--yes` / `--defaults` / `--no-prompt` is used.
## MCP Server — Agents With Real Memory
The real power is the MCP server. When configured via `repomemory setup claude`, it auto-starts with Claude Code and gives agents 7 tools:
| Tool | What It Does |
|------|-------------|
| `context_search` | Hybrid keyword + semantic search across repo + global context |
| `context_auto_orient` | One-call orientation: index, preferences, recent sessions |
| `context_write` | Write entries with smart scope routing (preferences → global) |
| `context_read` | Read full content, repo-first with global fallback |
| `context_list` | Browse entries with `[repo]`/`[global]` provenance tags |
| `context_risk` | Assess modification risk — hotspots, hidden coupling, bus factor |
| `context_delete` | Remove stale knowledge |
```
Agent: "Let me orient myself in this project..."
→ context_auto_orient()
→ Returns: project overview, preferences, recent sessions, recent changes
Agent: "Let me search for context about the auth flow..."
→ context_search("authentication flow")
→ Auto-routes to facts/ category, returns compact results
Agent: "I found a race condition. Let me record this."
→ context_write(category="regressions", filename="token-refresh-race", content="...")
→ Persisted. Detects if it supersedes an existing entry.
```
Sessions are auto-captured on shutdown. Zero config — `repomemory setup claude` handles everything.
## Supported Tools
| Tool | Integration | API Key Required? |
|------|------------|-------------------|
| **Claude Code** | MCP server (auto-starts) + post-commit hook | Yes (for analysis) |
| **Cursor** | MCP server + rules + 6 slash commands | **No** — uses Cursor's built-in AI |
| **GitHub Copilot** | `copilot-instructions.md` | Yes (for analysis) |
| **Windsurf** | `.windsurfrules` | Yes (for analysis) |
| **Cline** | `.clinerules` | Yes (for analysis) |
| **Aider** | `.aider.conf.yml` | Yes (for analysis) |
| **Continue** | `.continue/rules/` | Yes (for analysis) |
> **Cursor users:** You don't need any API key. Run `npx repomemory setup cursor`, then use `/repomemory-analyze` in Cursor chat. Cursor's AI does the analysis using the MCP tools — whatever model Cursor is using (it can even switch models mid-task).
## Supported Providers
| Provider | Models | Env Variable |
|----------|--------|-------------|
| `anthropic` | claude-sonnet-4-6, claude-opus-4-6 | `ANTHROPIC_API_KEY` |
| `openai` | gpt-4o, o3-mini | `OPENAI_API_KEY` |
| `gemini` | gemini-2.0-flash, gemini-2.5-pro | `GEMINI_API_KEY` / `GOOGLE_API_KEY` |
| `grok` | grok-3, grok-3-mini | `GROK_API_KEY` / `XAI_API_KEY` |
**Embeddings** (optional, for semantic search): Gemini `text-embedding-004` (free, default) or OpenAI `text-embedding-3-small`. Auto-detected from available API keys.
## All Commands
```bash
repomemory go # One-command setup (add --yes for non-interactive)
repomemory wizard # Interactive guided setup
repomemory analyze # AI-powered repo analysis
repomemory analyze --merge # Update without overwriting edits
repomemory analyze --dry-run # Preview without API call
repomemory search # Search knowledge base from terminal
repomemory status # Coverage and freshness report
repomemory doctor # Diagnostics and health check
repomemory dashboard # Local web UI (localhost:3333)
repomemory risk # Hotspots, coupling, ownership analysis
repomemory risk -f src/auth.ts # Targeted risk assessment for specific files
repomemory sync # Sync git history to changelog
repomemory setup # Configure Claude/Cursor/Copilot/etc
repomemory hook install # Auto-sync changelog on commits
repomemory global list # Manage global developer context
repomemory global export # Export global context as JSON
```
## Configuration
`.repomemory.json` in your repo root (all fields optional):
```json
{
"provider": "anthropic",
"model": "claude-sonnet-4-6",
"embeddingProvider": "gemini",
"hybridAlpha": 0.5,
"maxFilesForAnalysis": 80,
"enableGlobalContext": true
}
```
Custom `ignorePatterns` and `keyFilePatterns` are **additive** — they extend built-in defaults, not replace them.
## Why Not Just CLAUDE.md?
| | CLAUDE.md | repomemory |
|--|-----------|------------|
| **Maintenance** | Manual | AI-generated + agent-maintained |
| **Search** | Load everything | Hybrid keyword + semantic |
| **Cross-tool** | Claude Code only | 7 tools supported |
| **Team knowledge** | One person writes | Every AI session contributes |
| **Decisions** | Mixed in with instructions | Structured, searchable |
| **Regressions** | Not tracked | Prevents repeat bugs |
| **Sessions** | Not tracked | Auto-captured on shutdown |
| **Freshness** | Unknown | Staleness detection + auto-purge |
repomemory doesn't replace `CLAUDE.md` — it complements it. `CLAUDE.md` is for instructions and rules. `.context/` holds the knowledge that grows over time.
## Contributing
See [CONTRIBUTING.md](.github/CONTRIBUTING.md) for development setup, testing, and contribution guidelines.
## License
MIT
---
**Built for developers who are tired of AI agents forgetting everything between sessions.**
[Report Bug](https://github.com/DanielGuru/repomemory/issues) · [Request Feature](https://github.com/DanielGuru/repomemory/issues) · [npm](https://www.npmjs.com/package/repomemory)