emem-signer

emem-signer is a plugin for Claude Code from Vortx-AI/emem. Its token cost is not measured, scanned A, original, Apache-2.0.

A local plugin that holds an Ed25519 signing key and signs emem memory writes that you compose. Ed25519 is a public-key signing method used to verify who created data; reading emem does not require the key.

In plain words
What is it for?
It is for adding signing to emem memory writes, with the sensitive key kept in a secure credential store and passed only to the local signer process.
Why use it?
It lets signed memory notes be created without exposing the signing key to the wider agent workflow. It is optional and only needed when signed writes are wanted.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit It is for adding signing to emem memory writes, with the sensitive key kept in a secure credential store and passed only to the local signer process.

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Install in Claude Code
/plugin marketplace add Vortx-AI/emem
/plugin install emem-signer
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.

Clone the repo
git clone --depth 1 https://github.com/Vortx-AI/emem

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for emem-signer

README.md
[![agentmods](https://agentmods.dev/badge/plugins/vortx-ai/emem/emem-signer/github.svg)](https://agentmods.dev/plugins/vortx-ai/emem/emem-signer)
Your own site
<a href="https://agentmods.dev/plugins/vortx-ai/emem/emem-signer"><img src="https://agentmods.dev/badge/plugins/vortx-ai/emem/emem-signer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for emem-signer

Your own site · 80×15
<a href="https://agentmods.dev/plugins/vortx-ai/emem/emem-signer"><img src="https://agentmods.dev/badge/plugins/vortx-ai/emem/emem-signer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

emem-signer 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 today.

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/emem-signer/.claude-plugin/plugin.json · 31 lines

What it actually says

{
  "name": "emem-signer",
  "description": "A local signer for emem memory writes. It holds your Ed25519 signing key, given as a sensitive plugin option, and signs only the writes you compose. Optional: install it beside the emem plugin when you want to write signed notes; reading emem needs no key.",
  "version": "2.4.4",
  "author": {
    "name": "Vortx AI",
    "email": "[email protected]",
    "url": "https://vortx.ai"
  },
  "homepage": "https://emem.dev",
  "repository": "https://github.com/Vortx-AI/emem",
  "license": "Apache-2.0",
  "keywords": [
    "emem",
    "ed25519",
    "signing",
    "agent-memory"
  ],
  "icon": "icon.png",
  "privacyPolicyUrl": "https://emem.dev/privacy",
  "userConfig": {
    "signing_seed_hex": {
      "type": "string",
      "title": "Signing key",
      "description": "The 32-byte Ed25519 seed that signs your emem memory writes, as 64 hex characters. It is stored in your secure credential store and given only to the local emem-signer process.",
      "sensitive": true,
      "required": false
    }
  }
}
Contents

What it installs

The manifest is a name and a version. 1 MCP server travel with it, and installing the plugin installs all of them. Each is measured on its own page, and each can be installed alone.

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. today First seen · 31 lines scan A 991e7e9e7b42

Subscribe to this mod's changes

emem-signer is a plugin published in the GitHub repository Vortx-AI/emem (72 stars, last pushed yesterday), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-10-21.