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canon

v0.1.0

Canonical agent standards, verification gates, and repo contracts for durable software work.

CodexClaude Code1 Skill

By Eidos AGILicense: MIT0 GitHub starsUpdated 2 weeks ago

Directory evidence

Runtimes
Codex and Claude Code
Parsed components
1 skill or MCP entry
Source updated
Oct 4, 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 canon for Codex and Claude Code

Installs for the current user
codex plugin marketplace add eidos-agi/eidos-marketplace
codex plugin marketplace upgrade eidos-agi
codex plugin add canon@eidos-agi

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

Compatibility: the page URL and API slug “canon-2” remain stable.

  • Codex: canon-2@agent-plugin-marketplace → canon@eidos-agi

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/eidos-agi/eidos-marketplace

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

Plugin files

plugins/canon/
├── .codex-plugin/plugin.json
├── .claude-plugin/plugin.json
└── skills/canon/SKILL.md

Included Skills1

canonskills/canon/SKILL.md

Use when defining, enforcing, or reviewing agent operating standards after code, repo, plugin, workflow, or agent changes need proof gates, verification loops, AGENTS.md contracts, CI checks, or a durable definition of done.

Plugin manifests2

plugins/canon/.codex-plugin/plugin.json
{
  "name": "canon",
  "version": "0.1.0",
  "description": "Canonical agent standards, verification gates, and repo contracts for durable software work.",
  "author": {
    "name": "Eidos AGI",
    "url": "https://github.com/eidos-agi"
  },
  "homepage": "https://github.com/eidos-agi/canon",
  "repository": "https://github.com/eidos-agi/canon",
  "license": "MIT",
  "keywords": [
    "agents",
    "standards",
    "verification",
    "codex"
  ],
  "skills": "./skills/",
  "interface": {
    "displayName": "Canon",
    "shortDescription": "Canonical standards and proof gates for agentic software work.",
    "longDescription": "Canon packages durable agent operating standards, repo contracts, and verification gates so Codex and other agents can work against the same definition of done.",
    "developerName": "Eidos AGI",
    "category": "Developer Tools",
    "capabilities": [
      "Code",
      "Review",
      "Automation"
    ],
    "websiteURL": "https://github.com/eidos-agi/canon",
    "defaultPrompt": [
      "Check this repo against Canon standards.",
      "Add a verification gate for this workflow.",
      "Review this agent change for proof gaps."
    ],
    "brandColor": "#2F5D50"
  }
}
plugins/canon/.claude-plugin/plugin.json
{
  "name": "canon",
  "version": "0.1.0",
  "description": "Canonical agent standards, verification gates, and repo contracts for durable software work.",
  "author": {
    "name": "Eidos AGI",
    "url": "https://github.com/eidos-agi"
  },
  "homepage": "https://github.com/eidos-agi/canon",
  "repository": "https://github.com/eidos-agi/canon",
  "license": "MIT",
  "keywords": [
    "agents",
    "standards",
    "verification",
    "codex"
  ]
}

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.

[canon on Agent Plugins Marketplace](https://pluginsmp.com/plugins/canon-2)