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# MUR
**The local-first AI agent platform, in native Rust.**
Run a fleet of specialized AI agents on the machine you already own — agents that
learn from every session, speak with an on-device voice, plug into the AI tools
you already use, and can be handed to a friend as a single file.
[](https://github.com/mur-run/mur/actions/workflows/ci.yml)
[](https://github.com/mur-run/mur/releases/latest)
[](LICENSE)
[Quick start](#-quick-start) · [Features](#-what-can-a-mur-agent-do) · [Architecture](#-architecture) · [CLI](#-cli-at-a-glance) · [Docs](https://app.mur.run/docs/core) · [Website](https://mur.run)
</div>
---
<p align="center">
<img src="assets/mur-hub.png" alt="MUR Hub — fleet dashboard with conversation rail, companion status, and desktop-pet style presets" width="92%" />
<br/>
<sub><b>MUR Hub</b> — your fleet's home: conversation rail, live agent status, desktop-pet style presets. UI in English · 繁體中文 · 简体中文.</sub>
</p>
## What is MUR?
Every AI tool you use today is stateless and cloud-tethered: each session starts
from zero, and the agent lives in someone else's datacenter. MUR inverts both
assumptions.
MUR runs **specialized agents as long-lived local processes** — each with its own
model binding, system prompt, MCP servers, skills, schedule, voice, and
permissions — supervised by one small Rust runtime speaking
[A2A v0.3](https://github.com/a2aproject/A2A). On top of the runtime sits a
**memory pipeline with a maturity lifecycle**: what an agent learns in one
session is captured, scored, stored as plain YAML, retrieved by hybrid semantic
search, and injected into the next session — and it decays when it stops being
useful, so no junk accumulates.
You talk to your fleet through the **MUR Hub** desktop app (chat, approvals,
desktop pets), by **voice**, from an **iPhone**, from the **terminal**, or
through **Slack / Telegram / Jira**. And when an agent becomes genuinely useful,
you can **export it as a signed `.muragent` file** and give it to someone who has
never heard of MUR.
> **In one line:** a native-Rust, local-first fleet of specialized AI agents that
> learn and evolve — light enough to be always-on on the Mac you already own, and
> each exportable as a companion you can hand to anyone.
### Why local-first?
- **It fits on your machine.** ~200K lines of native Rust — no Electron, no
Python sidecar. An always-on fleet plus a local LLM fits in consumer RAM.
- **Marginal cost ≈ 0.** Inference runs on your hardware. Everything local is
free, with no per-token meter.
- **Privacy is structural, not a setting.** Memory, recordings, telemetry, and
voice stay under `~/.mur/`. One redaction chokepoint sits in front of disk —
the same code for the runtime's telemetry and for the CLI's hook capture log,
so a credential that appears on a command line is `[REDACTED:…]` in both.
Agents cannot read the credential store or the capture logs at all: those are
refused at the grant gate and denied in the kernel sandbox, not merely absent
from a grant. And a compile-time test forbids the companion module from
importing network clients.
### How MUR compares
| Capability | MUR | Agent harnesses<br>(Archon, …) | Coding agents<br>(Claude Code, Cursor) | Memory layers<br>(Mem0, Zep, …) |
|---|:-:|:-:|:-:|:-:|
| Local-first multi-agent runtime (native Rust) | ✅ | ✗ | ✗ | ✗ |
| Memory that evolves (decay + Draft→Canonical lifecycle) | ✅ | ✗ | ✗ | partial |
| Kernel sandbox (Landlock / seccomp / SBPL / Job Object) | ✅ | ✗ | ✗ | ✗ |
| Export an agent as a giveable artifact | ✅ | ✗ | ✗ | ✗ |
| On-device voice, DND-aware | ✅ | ✗ | ✗ | ✗ |
| Feeds learning into 16+ existing AI tools | ✅ | ✗ | partial | ✗ |
---
## 🚀 Quick start
### The 5-minute path — MUR Hub (macOS, Apple Silicon)
1. Download **[MUR-Hub-aarch64-apple-darwin.dmg](https://github.com/mur-run/mur/releases/latest)** from the latest release.
2. Drag **MUR Hub** into Applications and open it.
3. Say hi — the built-in concierge agent **MUR** is alive immediately: **offline,
no API key, no signup**, running on a bundled local multimodal model.
4. **+ New Agent** asks where the next one comes from — a **role template** MUR
fills in for you (skills, system prompt, least-privilege permissions), the
**official catalog**, or a `.muragent` a friend shared. Giving it a pet look
is the last step of every route, so any agent can live on your desktop.
Received a `.muragent` file from a friend? **Double-click it.** Hub verifies the
signature, walks you through model setup, and the agent comes alive.
> Power users: Hub menu → *Install Command-Line Tools…* puts `mur` on your `PATH`.
### The CLI path
```bash
# macOS / Linux
curl -fsSL https://mur.run/install.sh | sh
# Windows (PowerShell)
irm https://mur.run/install.ps1 | iex
# Homebrew (macOS arm64)
brew install mur-run/tap/mur
# From source
cargo install mur-core # installs the `mur` binary
# Later: upgrade in place — agents AND the daemon restart onto the new
# binary, each verified and reported in a per-agent summary table
mur update --restart-agents
```
```bash
mur init # interactive setup wizard
mur agent create coach --model llama3.2:3b # create an agent (default provider: ollama)
mur agent install-service coach # run it as a launchd/systemd user service
mur agent cli coach # streaming TUI chat with tool approvals
mur agent cli dev qa ops # three agents, tiled panes (tmux/zellij/WezTerm/kitty)
# --resume continues the last conversation
murmur coach # quick form (murmur symlink), identical to mur agent cli coach
mur agent stop coach # stops it for real: unloads the service first, so
# the supervisor cannot respawn it a second later
mur agent remove coach # unregisters it — add --purge to delete its data too
```
<p align="center"><img src="assets/demo.gif" alt="mur agent cli — streaming TUI chat with a local agent" width="92%" /></p>
In the chat, `/model` lists your registered models and switches the agent to another one mid-conversation — no restart. `/login` shows OAuth health for every provider and re-authenticates one without leaving the TUI: it re-reads the credential, asks the owner CLI to refresh, and only falls back to a real browser login if neither worked. Type `/` to open a completion menu of slash commands (with their subcommands) and the agent's skills — `↑↓` to move, `Tab`/`Enter` to accept, `Esc` to dismiss. And when the agent offers you choices, they appear as `Tab`-to-fill suggestions right in the input: a single one as greyed ghost text, several as a picker.
### Models & providers
Agents draw from a local provider/model registry at `~/.mur/models.yaml`:
```bash
mur model connect anthropic # one key, many models: prompts for the API key (stored
# in the Keychain), lists the vendor's models, adds
# the ones you pick — with pricing already filled in
mur model connect deepseek --base-url https://api.deepseek.com
mur model connect # no vendor: probe local runtimes (Ollama / MLX / LM Studio)
mur model add gpt5 --provider openai --model gpt-5.2 --secret env:OPENAI_API_KEY
# add one model by hand; pricing + context window are
# auto-filled from the models.dev catalog (--no-fetch
# to skip, --input-cost/--output-cost to set by hand)
mur model list # list registered models
mur model show gpt5 # provider, model, effective in/out cost, context window
mur model prices refresh # refresh the cached models.dev price catalog
mur model doctor # offline check: dangling model_refs, ids the catalog
# never carried, profiles disagreeing with their ref,
# and secrets sitting in plaintext on disk
mur model import ~/from-laptop/models.yaml # merge another machine's registry (never deletes;
# reports which secret refs need a key here)
```
Setting up a second machine is copying `models.yaml` and running `mur model import`: the file holds
secret *references*, never key material, so it is safe to move around — and the import tells you
exactly which refs still need a key on the new machine.
Providers rename and retire model ids constantly. The registry key is the stable name your agents point at, so a rename is **one edit to `models.yaml`** and every agent using that key follows — no per-agent migration. `mur model doctor` reports where that indirection has come apart; it is read-only and never rewrites a model id for you, because which model an agent runs is a cost and behaviour decision that shouldn't change silently.
API keys are stored as `SecretRef`s (`env:`, `keychain:`, `file:`, `cmd:`) — never written to config in plaintext. The **MUR Hub** desktop app has a **Model Library** that connects cloud providers (key saved to the macOS Keychain), auto-detects local runtimes (Ollama / MLX / LM Studio), discovers their models via `/v1/models`, and adds them to the registry — no YAML editing required.
**Reuse the subscriptions you already pay for.** The companion [mur-model-gateway](https://github.com/mur-run/mur-model-gateway) runs a local endpoint (`127.0.0.1:8088`) that routes Anthropic / OpenAI / Gemini calls through one outlet and attaches credentials from your OS keychain — point a registry entry's `base_url` at it and your agents ride your existing Claude Code login instead of a separate metered API key.
#### Cloud LLM backend (opt-in)
Conversation stages inherit the top-level `llm:` block by default. Each stage
accepts an optional `BackendConfig` override in `~/.mur/config.yaml`, so you
can pin individual stages to a different provider while everything else inherits
the top-level setting:
```yaml
conversations:
compact:
# extractive stage → cloud (fast + cheap). abstractive_backend is left
# unset here, so it inherits the top-level `llm:` block (local or
# cloud, whatever that's set to) — give it its own override to pin it
# independently.
extractive_backend:
provider: anthropic # ollama | anthropic | openai | openrouter | gemini
model: claude-haiku-4-5
api_key_env: ANTHROPIC_API_KEY
# endpoint: https://api.anthropic.com # optional override
# timeout_secs: 120 # optional, default 120
ask:
# answer stage → cloud. rewriter_backend is left unset here, so the
# rewriter follows this same answer-stage backend (cloud too) — set
# rewriter_backend explicitly if you want the rewriter pinned somewhere
# else (e.g. kept local while the answer stage runs in the cloud).
backend:
provider: anthropic
model: claude-sonnet-5
api_key_env: ANTHROPIC_API_KEY
# rewriter_backend: # same shape, per-stage
rollup:
# weekly/monthly rollups take the same two overrides as compact
# extractive_backend: …
# abstractive_backend: …
```
Fields: `provider`, `model`, optional `endpoint`, `api_key_env` (name of the
env var holding the key — the key itself never lives in config), `api_key_ref`
(a secret-ref string such as `env:VARNAME`, checked before `api_key_env`), and
`timeout_secs`. Leaving an override unset makes that stage inherit the
top-level `llm:` block — there is no separate local-only fallback anymore.
`mur chat doctor` prints every stage with the provider, model and endpoint it
will actually dial, marked `[pinned]` or `[follows smart]`, then probes each
distinct endpoint once — so you can verify routing before any conversation
data exists.
**Upgrading:** configs written before per-stage backends stored a bare model
name plus an `ollama_endpoint`. MUR converts them the first time it loads your
config and writes the result back once. A stage still on its shipped defaults
becomes an inherit; a stage you had customized is pinned to an explicit Ollama
backend, preserving exactly what it did before.
Typical cost with Haiku-extractive + Sonnet-ask is on the order of a few
dollars per month of daily use. Verify your setup with the ignored live
test: `cargo test -p mur-core live_anthropic_haiku_responds -- --ignored`
(requires `ANTHROPIC_API_KEY`; costs ~$0.0001 per run).
### Teach the AI tools you already use
MUR's memory layer works even if you never create an agent — it rides along with
Claude Code, Codex, Cursor, Gemini-family CLIs, and a dozen more:
```bash
mur init --hooks # install hooks for detected AI tools
mur sync # write learned patterns into each tool's native config
mur notes search "how we handle auth errors" # query your accumulated memory
```
### Dev-discipline skills (built-in)
MUR ships a curated engineering-discipline pack — internalized from the
MIT-licensed [obra/superpowers](https://github.com/obra/superpowers) and
[mattpocock/skills](https://github.com/mattpocock/skills) (see
`docs/ATTRIBUTIONS.md`), merged and adapted to MUR's runtime (no sub-agents
required; delegation-aware). One hub routes; sixteen on-demand leaves carry
the method:
`mur-dev` (hub) · `mur-grilling` · `mur-brainstorm` · `mur-domain-modeling` ·
`mur-writing-plans` · `mur-tickets` · `mur-executing-plans` ·
`mur-delegate-dev` · `mur-worktree` · `mur-tdd` · `mur-debugging` ·
`mur-code-review` · `mur-receiving-review` · `mur-verification` ·
`mur-finishing-branch` · `mur-merge-conflicts` · `mur-skill-authoring`
- Zero token cost until used: only the hub appears in the session-start
learning index; leaves load on demand (`mur skill show mur-tdd`).
- Never-shadow: with the superpowers plugin installed, the hub hides itself
on the CLI surface (`skills.dev_discipline_index: auto|always|never` in
`~/.mur/config.yaml`); a user-authored skill with the same name is never
overwritten.
---
## ✨ What can a MUR agent do?
### 🤖 Run as a real local process
One BusyBox-style runtime binary, one symlink per agent (`mur_agent_coach`).
Each agent owns its model binding (Ollama, MLX, Anthropic, OpenAI, … via the
`~/.mur/models.yaml` registry), system prompt, MCP servers, skills,
keychain-backed secrets, cron schedules, webhook receiver, and a rotating Ed25519
identity. `mur agent` exposes 40+ subcommands for the full lifecycle — create,
chat, export, schedule, permissions, telemetry, trash, rollback. When you need
to reach past them, `mur agent dial <name> <method> [json]` calls any A2A method
on a running agent and prints the raw result — `memory/reload`, `tasks/list`,
`turn/steer`, `model/set`.
Its tools can hand back images, not just text. Point `read_file` at a
screenshot, a photo, a rendered chart, and a vision-capable agent *looks* at it;
an MCP server that returns image content reaches the model the same way. Before
this the bytes were decoded as text and the model — with no way to say it never
saw a picture — described one anyway.
### 🧠 Learn — and forget — like a teammate
```mermaid
flowchart LR
C["capture<br/>significance · feedback"] --> S["store<br/>YAML truth + vector index"]
S --> R["retrieve<br/>vector 0.7 + BM25 0.3"]
R --> I["inject<br/>hooks · MCP · prompts"]
I -.->|next session| C
E["evolve<br/>decay · maturity · recombination"] <-.-> S
```
Knowledge moves through a maturity lifecycle driven by real usage, with decay
half-lives by tier (session 14d / project 90d / core 365d):
```mermaid
stateDiagram-v2
direction LR
[*] --> Draft
Draft --> Emerging: validated by usage
Emerging --> Stable: repeated wins
Stable --> Canonical: proven over months
Canonical --> Stable: unused — decay
Stable --> Emerging: unused — decay
```
Recurring tool sequences across sessions are mined into **suggested workflows**
(`mur workflow suggest`) — no drag-and-drop DAG editor, no marketplace; your own
recorded behavior is the authoring tool.
Capture is **ambient**: once hooks are installed, every session is recorded
locally (scrubbed at write, retention-GC'd, one line of config to turn off).
`mur in` just marks the current session as important; `mur out` reviews what
MUR queued for you — workflow proposals harvested from recent sessions, and
memory notes your agents want to share. Accept a workflow proposal and it
becomes a draft you can run with `mur run`.
Agents **remember proactively**: state a durable preference mid-chat ("from
now on, reply in zh-TW") and the agent saves it as a memory note — and tells
you so, in one line, with `/forget` as the undo (`/memories` lists everything
it knows). Notes come in two kinds with matched decay: `rule` (behavioral
guidance, fast half-life) and `fact` (environment truth, slow half-life). A
reserved injection slot keeps fresh notes from being permanently outbid by
mature skills. Say it again and the note is updated in place rather than
colliding — and one you had forgotten comes back. Ask an agent what it knows and
it answers from its own `recall`, reading the very set its prompt was built from;
`mur notes list --agent <name>` shows you the same thing. Off switch / confirm-first:
`memory.capture` in `~/.mur/config.yaml`.
**None of it waits for a restart.** A note saved mid-chat is in the very next
turn's prompt, and so is anything you change from another terminal — a skill
installed, a note removed, a `skill.yaml` edited in vim. The running agent
compares the tree against what it loaded and re-reads only when they differ, so
nothing has to notify it and an agent started later needs no catching up.
What an agent remembers **stays its own until you say otherwise**: each
remember also files a proposal into your `mur out` review lane — accept and
the note goes global (every agent's loader sees it), dismiss and the agent
keeps its private copy. Nothing an agent inferred reaches other agents
without usage-earned maturity or that explicit human gate.
Knowledge **federates on maturity, signed both ways**: each agent's sleep
cycle drops an Ed25519-signed snapshot request; the daemon verifies it
outside the sandbox and assembles the curated skills (lifecycle ≥ `stable`
by default) into that agent's local cache. Outbound is signed too — evidence
signals and memory proposals are signed with the agent's identity key as they
leave its home, and ingest verifies who said it (and that it may) before
anything is applied; the review lane labels each proposal `✓ signed`.
`MUR_SIGNAL_REQUIRE_SIG=1` turns tolerance for legacy unsigned drops off.
### 💬 Be everywhere you are
- **Live fleet progress in the terminal** — when an agent kicks off a fleet
from chat, `murmur` automatically arms a per-member status rail and streams
milestone lines (delegations with their sub-goal, member-written completion
summaries with elapsed time, run outcomes, approval gates) into the
transcript as they land in the fleet's signed channel.
- **MUR Hub** — multi-conversation rail across the fleet, streaming replies,
human-in-the-loop tool approvals, dashboards, and drag-out **desktop pets**
with expressions and speech bubbles.
- **Voice** — fully on-device TTS (Kokoro 82M) + STT (whisper.cpp); respects
Do Not Disturb, Focus, and a busy microphone.
- **iPhone** — the in-repo iOS companion (`mur-mobile-app`) pairs over LAN with
`mur agent pair` (QR); off-LAN traffic falls back to a relay that forwards only
end-to-end-signed envelopes. All AI stays on your Mac.
- **Watch together** — agents open videos in VLC, explain the current scene,
analyze whole videos with timestamps, and (opt-in) comment on scene changes —
on a local multimodal model.
- **Bridges** — Slack, Telegram, Jira (`@mur implement PROJ-123`), and webhooks.
### 🎁 Be given away
```mermaid
flowchart LR
A["Your agent<br/>in Hub or CLI"] -- "Share /<br/>mur agent export" --> B["coach.muragent<br/>signed · sanitized · data-only"]
B -- "any channel" --> C["Friend<br/>double-clicks"]
C --> D["Hub verifies signature,<br/>guides model setup"]
D --> E["Agent alive<br/>on their machine"]
```
The `.muragent` package is DSSE-signed and **contains no executable code and no
secrets** — private keys and API keys are stripped at export. The recipient
installs MUR Hub once (signed + notarized); after that, agents travel as plain
files.
MUR publishes agents the same way. `mur official list` browses the curated
catalog and `mur official install agents/<name>` installs one — the bundle is
signed by MUR and carries a license bound to your account, so an installed
official agent verifies on your machine and nowhere else. The Hub's **+ New
Agent** wizard offers the same catalog as a source.
### 🔐 Stay governed
- **Kernel sandbox** per OS — Landlock + seccomp (Linux), SBPL (macOS), Job
Object (Windows) — plus a DNS-resolver guard that filters network egress.
- **Human-in-the-loop** — tool calls pause for your approval in Hub and in
`mur agent cli` (opt out per session with `--auto`). While a gate is open the
decision keys only count when you aren't mid-message, and a session-wide
grant takes two presses — typing an ordinary sentence can't hand a tool
blanket approval. An open gate always renders somewhere, `/auto off` revokes
the per-tool grants it claims to revoke, and a gate that times out stops
asking. Reads never have to stop the run: `--auto-reads` covers `read_file`
and provably read-only shell commands, in the TUI and in `--plain` alike.
- **Build lane** — a toolchain that compiles its own executables can't be
expressed as a list of binaries: `cargo` runs build scripts and test
executables at paths that don't exist until the build creates them. Grant the
build-output directory instead — `mur agent perm allow-spawn-dir <agent>
<dir>` — and an agent can finally verify its own work. Narrow by
construction: `/`, `/usr`, `/opt`, your home directory and a bare mount point
are refused, and filesystem and network entitlements still bound whatever
runs.
- **A grant that never reached the kernel** — a filesystem entitlement only
takes effect if its path exists when the agent starts, so granting a
directory you hadn't created yet used to succeed at the CLI, survive a
restart, and still fail with a bare `Operation not permitted`. `mur agent
perm allow-read` / `allow-write` now refuse a path that doesn't exist and
print the `mkdir -p` to run. `mur agent doctor <name>` reports the two ways a
grant goes missing, which have different fixes: a path that doesn't exist and
will be dropped when the sandbox seals, and a grant whose *scope* swallows a
protected path — Landlock cannot carve one out, so that grant is dropped
whole. Some paths can never be granted at all — another agent's signing key,
the runtime binary, an autostart directory, and your credential store
(`~/.mur/secrets`, `auth.json`, a `.env`) — because they decide what starts
next or are the keys themselves; `allow-read` / `allow-write` refuse them,
and the runtime binary itself is signed by MUR's Developer ID in release
builds — a swapped binary is refused at spawn, never run. A grant written with
`~` now holds at every layer: the kernel policy always expanded it, the
in-process tool gate did not, so the sandbox allowed a read that the tool then
refused as `path not entitled` — and a `~/.ssh` *deny* entry, the form MUR
itself suggests, was inert at that gate.
A freshly seeded MUR owns
`~/.mur/{skills,workflows,fleets,artifacts}`, so it can build the skill,
workflow or fleet it just designed instead of handing you a list of commands.
- **Settings that were accepted and then did nothing** — `mur agent perm
allow-host` took `10.0.0.5:3306`, listed it back, and matched nothing: host
allowlists compare portless hosts, and the OS sandbox restricts by port with
the host left as `*`. It now refuses that form and names what would actually
take effect. Same family, different surface: an agent whose secret or model
reference failed to resolve used to start anyway and answer as an echo stub —
a "working" agent that parrots you back. `mur agent doctor <name>` now runs
the same resolution the runtime does and reports it, and `mur agent start`
waits for the runtime to claim it is up instead of reporting success the
instant the process forks.
- **Loop settings that can't quietly mean something else** — a fleet loop ends
when its job queue drains, when a member emits an agreed marker on a line of
its own, or when the router judges it done. `mur fleet set-loop` refuses a
value that would be silently reinterpreted: a calendar date is not a deadline,
`--max-iterations 0` is not zero, and a cron expression that can never fire is
not a schedule. Unattended auto-run still needs an explicit budget, and
`mur fleet stop` still ends everything.
- **Schedules that fire when they say they will** — `mur workflow schedule set`
takes a flat workflow *or* a workflow skill, and resolves the name against
both when you create the schedule, so a name it accepts is a name that will
run. The listed zone is the one launchd and cron actually use — local, not a
hardcoded `UTC` label that had people shift a working schedule by their own
offset. And the job inherits the `PATH` of the shell that created it, so a
step calling `mysql` or `gh` reaches the binaries you just tested it against
rather than the four directories a scheduler hands out.
- **Approvals that wait for you, not the other way round** — a run nobody is
watching used to spend the full five-minute approval window discovering
exactly that, then fail the step and kill the request, so approving it the
next morning released nothing. Now the request is parked: the step is
**blocked** rather than failed, independent branches still finish, and the
loop stops instead of re-asking the same question every iteration. Approve
whenever you get to it — Hub's *Needs You* card or `mur channel approve` —
and the next run continues from there, because approvals are matched on the
action's content hash, not a per-call id. Change the action and the old
approval no longer covers it. A fleet can state its own policy in
`fleet.yaml`: `hitl.mode: defer | wait | deny`, and
`hitl.auto_approve_tiers: [write]` to take standing responsibility for a
tier — capped at `write`, because spend, destructive and privileged actions
cost more than noticing afterwards can undo. Your explicit *no* to an action
outranks a standing grant for its tier, and every auto-approval is still
written to the channel, so "what did it do without asking me?" always has an
answer.
- **A run status that can't outlive the run** — every fleet or workflow run
writes one record, and `mur job status` / `mur fleet status` both read that
one record through one derivation. A run whose orchestrator died reports
**dead** the moment you ask instead of claiming to be running until a timeout
expires; a long run is not falsely failed while it is still working; and a
record rebuilt from the channel admits its heartbeat is unknown rather than
printing a stale pid as fact. An unreadable record is reported as unreadable,
never as a run that never existed.
- **Settlement** — a turn that changed anything ends with a card the runtime
draws from its own tool records, not from the model's summary: what was
**verified** (a command ran and passed), what was **changed** (files edited,
nothing run), what was **blocked**, and whether the turn stopped early. The
verified row is printed even when it's empty — `✔ verified (nothing ran — no
evidence this works)` — so "all fixed" over an empty column reads as the
contradiction it is. The same ledger rides along as JSON, so `mur agent send`,
fleet steps and Hub get the accounting without scraping prose.
- **Capability routing** — an agent blocked by the sandbox doesn't hand the job
back to you: the denial names the fleets that actually hold that binary, and
the agent delegates. `mur agent who --can cargo` shows the same picture,
derived from what the kernel enforces rather than from a list anyone
maintains — including the capable fleets you haven't authorized yet, and the
command that authorizes them.
- **Deletion safety** — destructive file actions go through a trash with a
cancel window and explicit restore (`mur agent trash`); nothing is
hard-deleted on a timer.
- **Auditability** — every action lands in an append-only JSONL ledger;
**MUR Commander** (companion crate) adds an Ed25519-signed constitution and a
hash-chained audit log for cross-network fleets.
- **Governed distribution** — agents, fleets, and **capabilities** (bundled MCP
servers + skills + program requirements, `mur capability install`) carry pinned
provenance under a strict *never-shadow* rule: an imported plugin or bundled
skill can never silently override a builtin. `mur skill doctor` flags drift and
de-pins stale vendored copies; imported add-ons re-verify on `mur agent addon reimport`.
- **Enforced MCP pins** — an agent **refuses to start** when an MCP server's
binary no longer matches the hash pinned at install, or isn't signed.
`mur agent mcp inspect <agent>` shows pinned vs current; `mur agent mcp pin
<agent> <server>` re-approves; `mur doctor` reports drift across every agent
before you meet it as a failed startup. MUR's own bundled MCP server re-pins
itself when MUR upgrades, and interpreter-launched servers (`npx …`, `python
-m …`) are reported as unprotected rather than enforced — hashing the
interpreter breaks on unrelated runtime upgrades without covering what it runs.
### 🔌 Power the tools you already pay for
Three integration layers, by interaction shape:
| Layer | Shape | What it does |
|---|---|---|
| **Hooks** | fire-and-forget | `mur sync` writes memory into each tool's native config; session hooks inject context automatically |
| **MCP server** | interactive | `mur-mcp-server` (stdio) exposes 18 tools — search, recall, project code search, agent status, token compression, media control |
| **Skills** | teaching | curated manifests that tell agents *when and why* to reach for MUR |
Synced tools include Claude Code, Gemini CLI, Auggie, Cursor, Copilot CLI,
OpenClaw, OpenCode, Amp, Codex, Aider, Windsurf, Zed, Junie, Trae, Cline, and
Amazon Q. The compression tools (`mur_compress` / `mur_retrieve`) shrink large
payloads 40–80%, reversibly — originals stay retrievable by hash.
---
## 🦀 Architecture
<p align="center">
<img src="docs/diagrams/mur-architecture.svg" alt="MUR system architecture" width="100%" />
</p>
| Crate | Role |
|---|---|
| [`mur-core`](mur-core) | The `mur` CLI — memory pipeline, sync, sources, dashboard server, agent management |
| [`mur-common`](mur-common) | Shared types — `Pattern`, `Workflow`, A2A envelopes, `.muragent` format |
| [`mur-agent-runtime`](mur-agent-runtime) | Per-agent A2A v0.3 supervisor — sandbox, voice, export, telemetry |
| [`mur-daemon`](mur-daemon) | Always-on background daemon — queues, schedules, dashboard API |
| [`mur-mcp-server`](mur-mcp-server) | stdio MCP server exposing MUR to AI clients mid-conversation |
| [`mur-compress`](mur-compress) | Offline, reversible token compression |
| [`mur-gui-core`](mur-gui-core) | Shared GUI library — sidecar supervisor, companion bridge, A2A client |
| [`mur-agent-launcher`](mur-agent-launcher) | <100 KB per-agent stub (Dock identity, file association) |
| [`mur-mobile-sdk`](mur-mobile-sdk) | Rust mobile core (UniFFI → Swift/Kotlin) — transport, signed envelopes, audio framing |
| [`mur-hub-gui`](mur-hub-gui) | **MUR Hub** desktop app (Tauri 2 + React) |
| [`mur-mobile-app`](mur-mobile-app) | iOS voice companion (Swift) |
**MUR Commander** — the cross-network orchestration, governance, and
evaluation plane — ships as a separate crate.
On disk, everything lives under `~/.mur/`: agents, skills, notes, and workflows
as **human-readable, git-friendly YAML** (the source of truth), plus a
LanceDB vector index that is always rebuildable (`mur internals reindex`). No
opaque database lock-in.
---
## 🧰 CLI at a glance
```bash
mur daemon serve # web dashboard at http://localhost:3847
mur dashboard # terminal TUI dashboard
```
<details>
<summary><b>Full command tree</b> (28 top-level commands)</summary>
```
mur
├── init / doctor / update / stats / verify
├── agent create · start · stop · restart · remove · cli · send · card · dial · who ·
│ export · install · install-service · addon · companion · voice · pair ·
│ schedule · perm · secret · trash · rollback … (40+)
├── capability install · list · show · remove (MCP + skills + programs bundled → an agent)
├── fleet create · list · show · status · run · set-loop · send · jobs (squads of agents over a shared channel)
├── official list · install (official agents/fleets from the app.mur.run catalog)
├── deep-research setup · status · ask (web research with wizard UX)
├── skill install · search · show · doctor · generate · suggest · evolve · recombine ·
│ publish · audit · trust · exchange · drafts · eval …
├── notes create · search · list · show
├── workflow run · suggest · list · schedule · show · search · new · publish · install
├── session start · stop · record · status · list · review · show · export · push
├── open add · done (what is still outstanding, by whether MUR saw it)
├── sync (16+ AI tools) · status · fleet pull/push/both
├── hook unified hook entry for AI tools (prompt / tool / stop / session-start)
├── chat conversations archive + ask
├── model connect · import · add · list · show · remove · doctor · prices · role · route ·
│ default · fallback · migrate (connect = one key, many models)
├── source external knowledge — Obsidian · Notion · Joplin
├── project index · search (semantic code search)
├── daemon start · stop · restart · status · serve · sleep
├── auth login · logout
├── team shared skills (private registries)
├── push / fetch signal outbox / inbox ↔ server
├── deploy Docker Compose deployment
└── internals low-level store access · reindex
```
</details>
### Deep research, simplified
```
mur deep-research setup # one-time wizard: model, workers, budget, egress consent
mur deep-research # status panel
mur deep-research "question" # preflight (start workers, re-pin gateway) + guarded run
```
`provision` / `run` remain as the flag-based advanced path. Egress is only ever granted in `setup`/`provision --grant-egress` (explicit consent); the smart run never touches grants.
Runs report progress: each step prints `✓ s2 research dr_worker_2 $0.08 42s` as it
completes, every iteration ends with a summary (`iteration 2 done: 3✓ 0✗ 2 pending ·
spend $0.31/$2.00 · model claude_haiku`), and the bare `mur deep-research` panel shows
the in-flight run (per-phase counts, running steps, spend vs budget) or the last run's
outcome. Progress lives in `~/.mur/fleets/deep-research/.run_progress.json` (best-effort;
never affects the run).
---
## 🔨 Build from source
```bash
git clone https://github.com/mur-run/mur.git && cd mur
cargo build --workspace # debug build (GUI apps are workspace-excluded)
cargo nextest run --workspace # tests (CI uses nextest)
cargo clippy --workspace -- -D warnings
./build.sh # release build with the embedded web dashboard
./install.sh # build + install to ~/.local/bin (no sudo; MUR_INSTALL_DIR overrides)
```
The two Tauri apps (`mur-hub-gui`, legacy `mur-agent-gui`) build from their own
manifests so the workspace build never pulls WebKitGTK / Cocoa / WebView2. The
iOS app builds with `mur-mobile-app/build-ios.sh`.
---
## 🧭 Roadmap
- **Cost-Router orchestrator** — route the easy ~80% of sub-tasks to local
models and spawn a frontier coding agent (`claude` / `codex` / `agy`) only for
the hard parts, as governed, sandboxed subprocesses. Spec merged; router in
progress.
- **Fleet Sync (Pro)** — replicate your *evolved* fleet (profiles, skills,
workflows, and their maturity/lifecycle state) across devices. Everything
local stays free.
- **Hub on Windows / Linux**, and an **Android companion** from the same Rust
mobile core.
Want to teach an agent something new? See
[Authoring Skills](docs/authoring-skills.md).
Design history lives in [`docs/superpowers/specs/`](docs/superpowers/specs) and
[`docs/architecture/runtime-overview.md`](docs/architecture/runtime-overview.md).
---
## 🤝 Contributing
Issues and PRs are welcome — see [CONTRIBUTING.md](CONTRIBUTING.md).
```bash
cargo nextest run --workspace && cargo clippy --workspace -- -D warnings
```
## 📄 License
[MIT](LICENSE)
---
<div align="center">
<sub><b>Local first. Native Rust. Yours.</b></sub><br/>
<sub><a href="https://mur.run">mur.run</a> · <a href="https://app.mur.run/docs/core">Docs</a> · <a href="https://github.com/mur-run/mur/releases">Releases</a> · <a href="https://github.com/mur-run/mur/issues">Issues</a></sub>
</div>