deja-vu
Memory for 38 coding agents, built from the session history already on your disk.
About deja-vu
deja-vu indexes the session history your coding agents already left on disk, months back, and hands the relevant part to whichever agent is working now: Claude Code, Codex, Cursor, opencode and 34 more. Recall arrives at session start, before a file is edited, and after a command fails.
Why it matters: a fix found in one agent comes back in another, and the memory survives compaction. Across 43 measured compactions, the author found summaries kept 77% of the decisions and 0.2% of the commands; deja hands back the rest. No model, no embeddings, no server, and keys and tokens are stripped as it indexes.
One Go binary for macOS, Linux and Windows (Homebrew, Scoop, winget, npm or go install). MIT licensed, about 1,100 stars at the time of listing.
More Github
AOCI-CODE
AOCI-CODE has your coding agent write one line per file (what it is for, what to read with it, what callers depend on, what must not go wrong) and keeps that index in the repository, versioned by Git. A local MCP server hands the right entries to Claude Code, Codex, Cursor or OpenCode at the start of every task. Why it matters: the agent stops re-reading the repo on every task, and the map survives a new conversation, a new agent or a new owner. After the first index, the server flags the entries that code changes made stale. It can index MySQL and PostgreSQL schemas too, structure only, never business data. The first index takes about an hour per 200,000 lines, depending on the model. Local only, a Go binary, around 1,200 stars at the time of listing.
agentacct
agentacct records what your coding agents actually did across projects: tool calls, files changed, checks run, tokens and estimated cost. Each task gets a Work Receipt with its sessions, outcome, cost and a timeline, in a local dashboard, a terminal app or a macOS app. Why it matters: it keeps what an agent reported apart from what was verified. A result only counts as Verified when checks pass after the last recorded change, so an agent saying "done" never passes for proof. Usage filters by agent, model or provider show where the spend goes. Works with Claude Code, Codex, OpenCode and more. Python 3.11+, install with pipx install agentacct. MIT licensed, early alpha, no login and no telemetry.
loci
loci indexes the project docs, notes and chat logs scattered across a dozen directories: heading-aware chunking, embeddings, hybrid retrieval (vector plus BM25), and answers with section-level citations. Why it matters: It ships as an MCP server, so Claude Code, Codex or any MCP client can query your own material instead of asking you what was decided last month. Local files in, cited answers out. Python 3.11+, MIT licensed, under 100 stars at the time of listing. The name comes from the memory-palace technique: place knowledge in locations, recall it by walking the path.
Backlot
Backlot runs local emulators of enterprise SaaS APIs: Slack, Gmail, Google Drive, GitHub, Jira, Notion and S3. It reproduces the real response shapes, pagination, authentication and per-document access controls over a deterministic corpus you control. Why it matters: Connecting a real Slack app means creating a workspace, registering the app, picking OAuth scopes and waiting on an admin. With Backlot it is pip install, backlot serve, and one changed base URL. Your integration tests run with no vendor account, no secrets in CI and no network. Point an official SDK at http://127.0.0.1:8000 and the same code that targets Slack in production talks to Backlot in development. MIT licensed, about 280 stars.
Sepia
Sepia is a de-AI writing skill for any Agent Skills-compatible agent, with native plugins for Claude Code, Codex, Grok Build and Antigravity. It applies rules matched to where the text is going for professional prose, and narrative repair for fiction. It is based on the StoryScope paper (arXiv:2604.03136). Useful for anything you publish under your own name: docs, launch posts, newsletters. Install in Claude Code: /plugin marketplace add Nanako0129/sepia MIT licensed. View on GitHub .