graymatter

v0.3.3+codex.20260909171430

Persistent, secure memory and shared context for AI agents.

Codex4 Skills1 MCP serverstdio

By Valkyr Labs Inc.License: Proprietary1.1k GitHub starsUpdated 2 days ago

Directory evidence

Runtimes: Codex
Parsed components: 5 skill or MCP entries
Source updated: Sep 22, 2026
Manifest status: Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install graymatter for Codex

Installs for the current user

codex plugin marketplace add hashgraph-online/awesome-codex-plugins
codex plugin marketplace upgrade awesome-codex-plugins
codex plugin add graymatter@awesome-codex-plugins

Paste and run these commands in a terminal with Codex. They add and refresh the awesome-codex-plugins catalog, then install this plugin.

Compatibility: the page URL and API slug “graymatter” remain stable.

Codex: graymatter@agent-plugin-marketplace → graymatter@awesome-codex-plugins

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually

$ git clone https://github.com/hashgraph-online/awesome-codex-plugins

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/ValkyrLabs/GrayMatter/.

Plugin files

plugins/ValkyrLabs/GrayMatter/

├── .codex-plugin/plugin.json
├── skills/graymatter/SKILL.md
├── skills/graymatter-analytics/SKILL.md
├── skills/graymatter-context/SKILL.md
├── skills/graymatter-memory/SKILL.md
└── .mcp.json

Included Skills4

graymatterskills/graymatter/SKILL.md

Install and use GrayMatter as an OpenClaw skill that provides primary durable memory, shared object-graph state, and authenticated access to the live api-docs schema via api-0. Use when the agent should persist durable memory, inspect organizational data models, and operate inside the business domain through RBAC-scoped API access.

graymatter-analyticsskills/graymatter-analytics/SKILL.md

Use when GrayMatter should support analytics work by retrieving durable context, checking retrieval receipts, loading the live api-docs schema, and helping create user/workspace-specific semantic layers without assuming tenant business objects exist.

graymatter-contextskills/graymatter-context/SKILL.md

Compile bounded, task-specific GrayMatter context and inspect authorized procedures or retrieval receipts. Use when a task needs grounded prior context, a reusable method, or an explanation of why particular memory was selected.

graymatter-memoryskills/graymatter-memory/SKILL.md

Search, retrieve, save, revise, and forget secure durable GrayMatter memory. Use when a task may depend on prior decisions, preferences, todos, artifacts, or long-lived context, or when the user asks to remember, update, or forget information.

MCP servers1

graymatterstdio

command: node
args: scripts/gm-mcp-launcher.mjs --stdio

Plugin manifests1

plugins/ValkyrLabs/GrayMatter/.codex-plugin/plugin.json

{
  "name": "graymatter",
  "version": "0.3.3+codex.20260909171430",
  "description": "Persistent, secure memory and shared context for AI agents.",
  "author": {
    "name": "Valkyr Labs Inc.",
    "email": "[email protected]",
    "url": "https://valkyrlabs.com/"
  },
  "homepage": "https://github.com/ValkyrLabs/GrayMatter",
  "repository": "https://github.com/ValkyrLabs/GrayMatter",
  "license": "Proprietary",
  "keywords": [
    "graymatter",
    "secure-memory",
    "durable-memory",
    "shared-context",
    "mcp",
    "retrieval-receipts",
    "context-pages",
    "agent-memory",
    "graymatter-light",
    "valoride",
    "openclaw",
    "codex",
    "chatgpt"
  ],
  "skills": "./skills/",
  "mcpServers": "./.mcp.json",
  "apps": "./.app.json",
  "interface": {
    "displayName": "GrayMatter",
    "shortDescription": "Persistent, secure memory and shared context for AI agents",
    "longDescription": "GrayMatter gives ChatGPT, Codex, ValorIDE, OpenClaw, and other MCP-compatible agents secure durable memory, bounded task-specific context, reusable procedures, retrieval receipts, a bundled mcp-server, and optional GrayMatter Light local mode while preserving api-0 authentication, RBAC, ACL, and tenant isolation.",
    "developerName": "Valkyr Labs Inc.",
    "category": "Productivity",
    "capabilities": [
      "Interactive",
      "Read",
      "Write"
    ],
    "websiteURL": "https://valkyrlabs.com/",
    "privacyPolicyURL": "https://valkyrlabs.com/privacy-policy",
    "termsOfServiceURL": "https://valkyrlabs.com/terms",
    "composerIcon": "./assets/graymatter-logo.png",
    "logo": "./assets/graymatter-logo.png",
    "defaultPrompt": [
      "Search GrayMatter before asking me to repeat context.",
      "Compile task-specific context from GrayMatter.",
      "Save this durable decision in GrayMatter."
    ],
    "brandColor": "#245B4A"
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[graymatter on Agent Plugins Marketplace](https://pluginsmp.com/plugins/graymatter)