Dreamd
FreeNot checkedA local MCP server that gives AI harnesses a shared, filesystem-backed memory using the .agent folder, with tools to search and append lessons across sessions.
About
A local MCP server that gives AI harnesses a shared, filesystem-backed memory using the .agent folder, with tools to search and append lessons across sessions.
README
License: Apache 2.0
Platforms
Status
The plain files in your repo are the memory. dreamd is the local server that reads and writes them.
Drop a .agent/ folder in the project. Claude Code, Cursor, Cline, and other MCP-aware harnesses share it. What one agent learns, the next already knows. You can cat, grep, git diff, and hand-edit every byte.
This is not "another memory product." It is a storage-model wedge: the filesystem is the source of truth, and the MCP tools (search_nodes / append_node) are a thin interface over those files.
Open core: Apache-2.0 core today, self-hosted only. Premium features may ship later. Do not read this as free-forever for everything.
npx -y dreamd-mcp init # scaffold .agent/
npx -y dreamd-mcp # MCP server (stdio)
First run prompts once. Press
y, or keep usingnpx -y dreamd-mcp.
The moment it earns its name
~/project $ npx -y dreamd-mcp init
# Claude Code, Tuesday:
you > axum keeps blowing up when I unwrap in route handlers
claude> filed under rust::error_handling::axum_rejection
# Cursor, Friday, fresh session:
you > why is this build failing?
cursor> You're unwrapping in a route handler. dreamd has a
lesson from Tuesday: axum needs IntoResponse on
custom Error types. Try `?` and a typed error.
No re-explaining. No re-pasting. Same .agent/ folder, every harness.
Install
npm (recommended)
npx -y dreamd-mcp init
npx -y dreamd-mcp
Requires a project root sentinel (.git/, Cargo.toml, package.json, or pyproject.toml).
Cargo / from source
git clone https://github.com/botzrDev/dreamd.git
cd dreamd
cargo install --path crates/dreamd-cli
See CONTRIBUTING.md for the full dev setup.
Quick start (< 30 seconds)
If ~/your-project is a brand-new folder, run git init first (or make sure it contains one of the supported root sentinels).
cd ~/your-project
npx -y dreamd-mcp init
# Terminal 1: shared daemon (recommended when several agents write)
dreamd watch
# Terminal 2: MCP server for your harness
npx -y dreamd-mcp
Ask the agent to search memory for something you just learned. It calls search_nodes and recalls prior context.
cat .agent/episodic/AGENT_LEARNINGS.jsonl
dreamd doctor
Adapters: Claude Code · Cursor
What dreamd writes
| Location | Contents | Commit? |
|---|---|---|
<project>/.agent/ |
Episodic JSONL, semantic lessons, personal prefs | Yes (this is the shared memory) |
<project>/.agent/.dreamd/ |
Local index, daemon state, config template | No (gitignored by init) |
~/.agent/registry.toml |
Which projects have a store | No |
~/.agent/dreamd.sock |
Daemon API socket (while running) | No |
dreamd init is idempotent. To uninstall from a machine — stop local servers, remove the socket, unregister the current project, clear caches — run dreamd uninstall (project .agent/ stores are left in place). Advanced, registry-only: dreamd init --uninstall-project unregisters the current project and touches nothing else.
Architecture (one paragraph)
Agents talk to dreamd over MCP (search_nodes, append_node). The MCP server proxies to a single-writer daemon (dreamd watch) over HTTP on a Unix domain socket, or runs in-process when no daemon is present. The coordinator appends to AGENT_LEARNINGS.jsonl and feeds a Tantivy BM25 index. Recall ranks hits with a query-time salience formula (BM25 × age decay × pain × importance × recurrence). Each hit carries source_harness and skill_action, so recall is attributable across harnesses. The dream cycle consolidates episodic learnings into LESSONS.md under WAL protection.
v0.1 recall is deliberately lexical (BM25 + salience). That is a scope choice, not a scoreboard claim. Semantic / embedding recall is out of scope until after v0.1.
Details: ARCHITECTURE.md · SPEC.md · docs/http-api.md
FAQ
Is this the first / only cross-harness memory? No. Other projects exist (including large ones). dreamd owns the storage-model wedge: plain files you already version-control, not a category claim.
Do I need Rust? No for the recommended path. npx -y dreamd-mcp downloads a prebuilt binary. Rust is only required if you build from source.
Where does memory live? In <project>/.agent/. The daemon and index under .agent/.dreamd/ are local and gitignored. You can read and edit the JSONL / Markdown by hand; durable appends should go through the daemon / MCP so the writer stays single-writer.
What if I want a full wipe? See Full fresh store. There is no dreamd reset --all. To uninstall dreamd itself, run dreamd uninstall — details: packages/dreamd-mcp/README.md.
Windows? Not in v0.1. Linux and macOS only. Windows lifecycle is planned for v0.1.1.
Is everything free forever? Apache-2.0 core is open. Premium may come later. Self-hosted only in v0.1 (no hosted SaaS).
More troubleshooting: docs/troubleshooting.md.
Roadmap
| When | What |
|---|---|
| v0.1 (~2026-08-09) | BM25 lexical recall, Linux + macOS, deterministic dream cycle, npm dreamd-mcp |
| v0.1.1 | Windows lifecycle, semantic / embedding recall, LLM-assisted dream cycle (not claimed in v0.1) |
| Oct 2026 | State-Drift benchmark publish (dreamd is one row; conflict of interest disclosed) |
v0.1.1 features are intentionally not implemented or documented as shipped in v0.1 code.
Documentation
| Doc | What |
|---|---|
| GUIDE.md | 20-minute tutorial walkthrough |
| docs/README.md | Full documentation index |
| docs/http-api.md | REST API over Unix socket |
| docs/configuration.md | TOML config and env vars |
| docs/troubleshooting.md | Common failures |
| docs/glossary.md | Domain terms |
| SPEC.md | On-disk contract |
| ARCHITECTURE.md | Engineering decisions |
| CONTRIBUTING.md | Dev setup and RFC process |
| SECURITY.md | Threat model |
| docs/marketing.md | Product story and positioning |
Warm recall latency numbers (local Criterion benches) live in PERF.md if you want them. They are not the product pitch.
Status
v0.1 targeting 2026-08-09. Daemon commands available today: init, dream, doctor, mcp, watch, reset workspace, version. npm package: dreamd-mcp (floating: npx -y dreamd-mcp). Linux and macOS.
| Layer | Status |
|---|---|
SPEC.md v0.1 |
Shipped |
| Reference implementation (daemon, HTTP API, dream cycle, Tantivy recall) | In progress |
MCP server (dreamd mcp + npx dreamd-mcp shim) |
Shipped on npm |
| CI / cross-platform matrix | Lint, test, build, binary-size gate, DCO |
| Conformance | Reference-impl alpha suites (scripts/alpha/); no formal certification in v0.1 |
State-Drift benchmark (Oct 2026)
A separate, reproducible eval measuring whether memory systems correctly update superseded facts. dreamd is one row in the table, published regardless of placement. Conflict of interest is disclosed; configs use each maintainer's documented defaults; raw outputs are committed for audit. Methodology: scripts/benchmark/README.md.
Platforms
v0.1: Linux and macOS. Windows in v0.1.1.
Contributing
See CONTRIBUTING.md. By participating you agree to the Code of Conduct. Security reports: SECURITY.md (do not open a public issue for vulnerabilities).
License
Installing Dreamd
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/botzrDev/dreamdFAQ
Is Dreamd MCP free?
Yes, Dreamd MCP is free — one-click install via Unyly at no cost.
Does Dreamd need an API key?
No, Dreamd runs without API keys or environment variables.
Is Dreamd hosted or self-hosted?
Self-hosted: the server runs locally on your machine via the install command above.
How do I install Dreamd in Claude Desktop, Claude Code or Cursor?
Open Dreamd on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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