um-setup

A first-run setup command for connecting the plugin to a universal-memory server, a service that stores information for reuse across sessions.

In plain words
What is it for?
Use it to configure the server URL and optional login token, verify access, and save protected local configuration.
Why use it?
It checks whether the server can be reached and written to before saving the connection details, so later hooks know where to connect.

Command

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/goldenwo/universal-memory/um-setup
Clone the repo
git clone --depth 1 https://github.com/goldenwo/universal-memory
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 425 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00018 $0.00425
Opus 5 $0.00009 $0.00212
Sonnet 5 $0.00004 $0.00085
Haiku 4.5 $0.00002 $0.00042

Measured 2d ago against content hash 8d6cf7e911ac, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

um-setup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/claude-code/universal-memory/commands/um-setup.md · 21 lines

What it actually says

Run the plugin's first-run setup: verify a universal-memory server (health check + an authed write probe) and, on success, write ~/.um/endpoint and ~/.um/auth-token (mode 600) so every hook resolves it.

Steps:

  1. Ask the user for their UM server URL (default http://localhost:6335 for a local Docker install; a remote server looks like http://your-host:6337).
  2. Ask whether the server needs an auth token. Loopback installs usually don't; anything reached through a tunnel/proxy does. If a token is needed and the user prefers not to paste it in chat, tell them to run the script themselves in a terminal — it has a hidden token prompt: bash "${CLAUDE_PLUGIN_ROOT}/hooks/um-setup.sh"
  3. Otherwise execute via the Bash tool (token flag only when one was given): bash "${CLAUDE_PLUGIN_ROOT}/hooks/um-setup.sh" --endpoint <url> [--token <token>]
  4. Relay the result. On failure the script prints one actionable message per cause and writes nothing — the important distinctions:
    • unreachable — wrong URL, server down, or tunnel/firewall in between.
    • writes are DISABLED (HTTP 403) — the server needs UM_MCP_WRITE_ENABLED=true (and UM_MOUNT_MODE=rw) in its .env, then a restart.
    • server is too old (404 on the write probe) — the server predates the /api capture routes; it must be upgraded to v1.7.0 or newer.
    • rejected the token (401) — token mismatch with the server's UM_AUTH_TOKEN.

On success, hooks work immediately in the next session — no restart of Claude Code required for capture; the state-of-play banner appears at the next SessionStart.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 21 lines · 18 tokens per session scan A 8d6cf7e911ac

Subscribe to this mod's changes

um-setup is a command published in the GitHub repository goldenwo/universal-memory (2 stars, last pushed 4d ago), licensed MIT. It adds 18 tokens to every session and 425 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.