Agent-Ex

Compare extension points across agentic coding tools. Click any cell for details.

Scopes:
User / HomeProject / Repo RootSubdirectory / FolderOrganization / EnterpriseCloud / Web SessionMachine / Admin
Extension FamilyAmazon KiroClaude CodeGitHub CopilotOpenAI Codex
Instructions

Persistent context the agent sees every session — project conventions, coding standards, always-on guidance

Prompts

Reusable prompt templates explicitly invoked as slash commands or by name

Skills

Reusable workflows, knowledge, and prompt templates invoked on demand or auto-loaded when relevant

MCP & Tools

Connections to external services, APIs, and databases via Model Context Protocol

Agents

Specialist personas, isolated workers, or coordinated teams with distinct prompts and tools

Hooks

Deterministic automation that runs on lifecycle events outside the LLM loop

Plugins & Distribution

Packaging, sharing, and installing bundles of skills, hooks, agents, and MCP servers

Settings & Policy

Tool configuration, managed settings, command rules, and organizational controls

Data last updated 2026-04-18 · Auto-generated from upstream docs and may be inaccurate · Agent-Ex