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Install in OpenClaw
/install mnemon
Description
Persistent memory CLI for LLM agents. Store facts, recall past knowledge, link related memories, manage lifecycle.
Usage Guidance
This skill appears to do what it says (a local CLI memory plugin) but it: (1) installs third‑party binaries (Homebrew tap or go install @latest), (2) runs a setup that writes files under ~/.openclaw and ~/.mnemon, and (3) injects bootstrap hooks/prompts that change agent behavior persistently. Before installing: (a) inspect the upstream project (GitHub repo and Homebrew tap) and prefer pinned releases or vetted packages, (b) run 'mnemon setup' in a throwaway/sandboxed environment or inspect the files it would write (ask the author for the exact file contents) so you can review injected prompts/hooks, (c) back up ~/.openclaw/openclaw.json and any agent configs so you can revert changes, and (d) avoid storing secrets in the memory store. If you cannot verify the source or review the setup output, treat installation as risky.
Capability Analysis
Type: OpenClaw Skill
Name: mnemon
Version: 0.1.2
The skill is classified as suspicious due to its deep integration with the OpenClaw agent's core functionality. Specifically, the `mnemon setup --target openclaw --yes` command, instructed in `SKILL.md`, installs an `agent:bootstrap` hook that 'injects behavioral guide' into the agent. This grants the `mnemon` binary the capability to directly modify the agent's internal prompts and operational logic, creating a significant prompt injection vector. While the skill's stated purpose is persistent memory, this level of control over the agent's behavior, combined with the reliance on external binaries via `brew` and `go install`, represents a high-risk capability that could be abused for malicious purposes if the `mnemon` binary itself were compromised or designed with harmful intent.
Capability Assessment
Purpose & Capability
Name/description (persistent memory CLI for LLM agents) aligns with the declared binary requirement and the install methods (Homebrew formula or go install of a mnemon repo). The SKILL.md's commands (remember, recall, link, etc.) are coherent for a memory tool.
Instruction Scope
The runtime instructions include a single 'mnemon setup --target openclaw' command that will create skill, hook, and plugin files under ~/.openclaw and prompt files under ~/.mnemon. This is expected for integration, but the setup injects an 'agent:bootstrap' behavioral guide and plugin hooks that will influence agent behavior on every message (remind/nudge). The SKILL.md does not show the exact files' contents; that makes it hard to audit what prompts/behavior are injected. The guide also explicitly tells the agent to use exec to run mnemon commands and warns not to store secrets.
Install Mechanism
Installers are a Homebrew tap (mnemon-dev/tap/mnemon) and a go install from github.com/mnemon-dev/mnemon@latest. Both are plausible for delivering a CLI but introduce supply-chain considerations: a third-party Homebrew tap is less vetted than an official formula, and 'go install @latest' pulls mutable code. No arbitrary URL downloads or extract steps are present.
Credentials
The skill does not request any environment variables or credentials. That is proportionate to its stated purpose. It will read/write files under the user's home (~/.openclaw, ~/.mnemon) which is reasonable for a local plugin and prompt store.
Persistence & Privilege
Although 'always' is false, the setup step explicitly modifies the OpenClaw installation by adding skills, hooks, and plugin config and instructs the user how to enable hooks that run on every message (remind/nudge). This grants persistent, high-impact influence over agent behavior. The skill will modify OpenClaw configuration (openclaw.json) and install agent:bootstrap hooks — actions with platform-wide consequences that should be reviewed before granting.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install mnemon - After installation, invoke the skill by name or use
/mnemon - Provide required inputs per the skill's parameter spec and get structured output
Version History
v0.1.2
- Added comprehensive installation and configuration instructions for Homebrew and Go.
- Documented OpenClaw integration setup and plugin hook configuration options.
- Explained recall, remember, and link workflows with usage guidance and candidate evaluation tips.
- Listed all available mnemon CLI commands with example usage.
- Added clear guardrails for memory storage types, edge types, and content limits.
Metadata
Frequently Asked Questions
What is Mnemon Memory?
Persistent memory CLI for LLM agents. Store facts, recall past knowledge, link related memories, manage lifecycle. It is an AI Agent Skill for Claude Code / OpenClaw, with 657 downloads so far.
How do I install Mnemon Memory?
Run "/install mnemon" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Mnemon Memory free?
Yes, Mnemon Memory is completely free (open-source). You can download, install and use it at no cost.
Which platforms does Mnemon Memory support?
Mnemon Memory is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Mnemon Memory?
It is built and maintained by Grivn (@grivn); the current version is v0.1.2.
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