deja-vu
Your agents already solved this. deja finds it — memory operations for fifteen coding agents: retroactive search and MCP recall (84.9% R@1 on LongMemEval-S, no LLM), trust scopes, curated notes with tags and lifecycle states, measured impact. One zero-dep binary, fully local.
What is it?
What it is
Claude Code, Codex, opencode, aider, Gemini CLI, Cursor, Antigravity, Grok Build, Qwen Code, Kimi Code, Cline, Roo Code, OpenClaw, pi and Copilot CLI write every conversation to local files — gigabytes of debugged problems and design decisions you can't search. deja is a zero-dependency binary that turns those histories into a memory layer:
Why it exists
Your agents already solved this. deja finds it — memory operations for fifteen coding agents: retroactive search and MCP recall (84.9% R@1 on LongMemEval-S, no LLM), trust scopes, curated notes with tags and lifecycle states, measured impact. One zero-dep binary, fully local.
Who should use it
Teams building with Go who want an open-source, self-hosted option.
Who should avoid it
Teams that need a fully managed SaaS with enterprise SLAs out of the box.
How it works
A quick walkthrough in plain English
How deja-vu works
Step 1 of 3
You interact with it
Open deja-vu, send a request, or connect it to your stack.
Features
Advantages
- Open source (MIT)
- Active Go ecosystem
- Self-hosted deployment options
Disadvantages
- Requires operational ownership for self-hosted setups
- Community support varies by project maturity
Installation
native
| Command | What it does | | --- | --- | | `deja <query>` | Search all histories. Multi-word = AND, common English filler words are ignored, substrings match (`code` finds `opencode`), and double-quoted phrases require contiguous text; zero-result queries try word forms before close spellings. `--re`, `--harness`, `--project`, `--since 30d`, `--role`, `--json`. | | `deja ctx <query>` | Compact markdown digest of the best match — pipe it into a prompt. | | `deja blame <path>` | Find sessions that discussed a file, newest and most specific first. `--json`, `--all`, and the usual filters are supported. | | `deja share <id>` | Sanitized session digest for a colleague: secrets redacted, tool noise stripped. | | `deja stats` | Headline counts, totals, per-harness split, top projects, monthly spa
FAQ
What is deja-vu?
deja-vu is an open-source project licensed under MIT.
What language is deja-vu built with?
Primary language: Go.
Is it free to use?
Yes. Licensed under MIT. Check the license for commercial use.
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