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agent-toolkit-core

v1.22.2

Core orchestration skills, dev companion, output handshake, PR fallback, and code-reviewer agent. The baseline install for any project.

CodexClaude CodeAgent Plugins6 Skills1 MCP serverstdio

By ulises-jeremiasLicense: MIT12 GitHub starsUpdated 2 hours ago

Directory evidence

Runtimes
Codex, Claude Code, and Agent Plugins
Parsed components
7 skill or MCP entries
Source updated
Aug 24, 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 plugin

Installs for the current user
codex plugin marketplace add IchenDEV/agent-plugin-mkt
codex plugin marketplace upgrade agent-plugin-marketplace
codex plugin add agent-toolkit-core@agent-plugin-marketplace

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

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/ulises-jeremias/agent-toolkit

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

Plugin files

plugins/agent-toolkit-core/
├── .codex-plugin/plugin.json
├── .claude-plugin/plugin.json
├── plugin.json
├── skills/assistant/SKILL.md
├── skills/dev-companion/SKILL.md
├── skills/onboarding/SKILL.md
├── skills/output-handshake/SKILL.md
├── skills/pr-fallback/SKILL.md
├── skills/workspace-knowledge-sync/SKILL.md
└── .mcp.json

Included Skills6

assistantskills/assistant/SKILL.md

Assistant — on any repo, scan README→docs→AGENTS→CONTRIBUTING→PR templates→task runners→devcontainer→CI→configs before code; cite sources; prefer AGENTS.md for agent behavior; portable across Cursor/Copilot/Claude; use agent-toolkit CLI when needed.

dev-companionskills/dev-companion/SKILL.md

WHAT — Dev Companion (general): layered companion for client delivery; modes, gates, delegation to assistant and workflow-generic-project; no CLI matrices.

onboardingskills/onboarding/SKILL.md

Getting started guide for new users. Walks through setup validation, the skill/agent hierarchy, and the three most useful commands per role (developer, PM, tech lead). Use when someone is new to the workstation or asks "where do I start?"

output-handshakeskills/output-handshake/SKILL.md

WHAT — Default gate for any deliverable: confirm where the final artifact will be stored and that a human will review, before writing PRDs, TRDs, ADRs, or PR bodies. Repository paths, wikis, and ticket tools differ by engagement; never assume a single location.

pr-fallbackskills/pr-fallback/SKILL.md

WHAT — When the repo has no GitHub PR template, structure the pull-request body using the default in references/pr-body-default.md. Pair with output-handshake and github-cli-workflow. Does not open the PR; HOW stays in the forge skill.

workspace-knowledge-syncskills/workspace-knowledge-sync/SKILL.md

Syncs knowledge to the agentic-harness knowledge base and AGENTS.md learned facts. Use when the assistant discovers new patterns, learns user preferences, workspace facts, or identifies information worth preserving for future sessions. Integrates with tech-assistant for automatic trigger points.

MCP servers1

githubstdio
command
ghcr.io/github/github-mcp-server
env.GITHUB_PERSONAL_ACCESS_TOKEN
${GITHUB_PERSONAL_ACCESS_TOKEN}

Plugin manifests3

plugins/agent-toolkit-core/.codex-plugin/plugin.json
{
  "name": "agent-toolkit-core",
  "version": "1.22.2",
  "description": "Core orchestration skills, dev companion, output handshake, PR fallback, and code-reviewer agent. The baseline install for any project.",
  "maturity": "experimental",
  "author": {
    "name": "ulises-jeremias",
    "email": "[email protected]"
  },
  "homepage": "https://github.com/ulises-jeremias/agent-toolkit",
  "repository": "https://github.com/ulises-jeremias/agent-toolkit",
  "license": "MIT",
  "keywords": [
    "agent-toolkit",
    "core",
    "codex",
    "skills",
    "agents"
  ]
}
plugins/agent-toolkit-core/.claude-plugin/plugin.json
{
  "name": "agent-toolkit-core",
  "version": "1.22.2",
  "description": "Core orchestration skills, dev companion, output handshake, PR fallback, and code-reviewer agent. The baseline install for any project.",
  "author": {
    "name": "ulises-jeremias",
    "email": "[email protected]"
  },
  "homepage": "https://github.com/ulises-jeremias/agent-toolkit",
  "repository": "https://github.com/ulises-jeremias/agent-toolkit",
  "license": "MIT",
  "keywords": [
    "agent-toolkit",
    "core"
  ]
}
plugins/agent-toolkit-core/plugin.json
{
  "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
  "name": "agent-toolkit-core",
  "version": "1.22.2",
  "description": "Core orchestration skills, dev companion, output handshake, PR fallback, and code-reviewer agent. The baseline install for any project.",
  "author": {
    "name": "ulises-jeremias",
    "url": "https://github.com/ulises-jeremias/agent-toolkit"
  },
  "homepage": "https://github.com/ulises-jeremias/agent-toolkit",
  "repository": "https://github.com/ulises-jeremias/agent-toolkit",
  "license": "MIT",
  "keywords": [
    "agent-toolkit",
    "core",
    "skills",
    "agents"
  ]
}

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.

[agent-toolkit-core on Agent Plugins Marketplace](https://pluginsmp.com/plugins/agent-toolkit-core)