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Agent Workflows & Frameworks for OpenAI Codex

Methodologies and orchestration layers on top of your coding agent: spec-driven development, task planning and parallel agents. Every listing below works with OpenAI Codex. Free GitHub projects and paid options are ranked together.

Updated October 2026 Β· 29 listings Β· stars refreshed daily from GitHub

How to add agent workflows & frameworks to OpenAI Codex

Subagents are usually Markdown files with a name, description, tool list and system prompt. Copy the ones you need into your app's agents folder rather than installing a whole pack at once.

1

Spec Kit πŸ€– AgentFree

GitHub's toolkit for spec-driven development with AI coding agents

β˜… 140k Β· +898 this week

2

Task Master πŸ€– AgentFree

AI task management that turns a PRD into tasks your coding agent works through

β˜… 28k Β· +39 this week

3

Fast Agent πŸ€– AgentOpen source

Python framework for building, orchestrating and evaluating MCP-native AI agents

β˜… 3.9k Β· +9 this week

4

OpenSpec πŸ€– AgentFree

Lightweight spec-driven development: agree on changes before the agent codes

β˜… 71k Β· +564 this week

5

CC Safety Net πŸ€– AgentOpen source

Pre-execution guard that blocks destructive commands and secret access for coding agents

β˜… 1.6k Β· +11 this week

6

BMAD Method πŸ€– AgentFree

Agile AI-driven development with analyst, PM, architect, developer and UX agents

β˜… 54k Β· +269 this week

7

Claude Squad πŸ€– AgentFree

Manage multiple terminal agents in parallel in separate workspaces

β˜… 8.6k Β· +28 this week

8

cc-sdd πŸ€– AgentOpen source

Spec-driven development harness with Agent Skills and long-running autonomous implementation

β˜… 3.7k Β· +14 this week

9

Ruflo (Claude Flow) πŸ€– AgentFree

Agent orchestration platform for running swarms of Claude Code agents

β˜… 74k Β· +449 this week

10

MemSearch πŸ€– AgentOpen source

Persistent cross-platform memory for coding agents, backed by Markdown and Milvus

β˜… 2.7k Β· +42 this week

11

Oh My OpenAgent (OmO) πŸ€– AgentFree

Multi-model agent orchestration for OpenCode and Codex: type ultrawork, agents run to done

β˜… 70k Β· +344 this week

12

Claude Octopus πŸ€– AgentOpen source

Run multiple AI models against one task and surface disagreements before you ship

β˜… 4.1k Β· +40 this week

13

Maestro πŸ€– AgentOpen source

Multi-agent orchestration with 39 specialists, phased workflows and persistent sessions

β˜… 463 Β· +1 this week

14

Claude Codex Bridge (CCB) πŸ€– AgentFreemium

Multi-agent terminal UI that coordinates Claude, Codex, Gemini and other CLI agents in one workspace

β˜… 3.5k Β· +18 this week

15

Babysitter πŸ€– AgentOpen source

Code-defined agent workflows with quality gates, approval breakpoints and resumable journals

β˜… 1.8k Β· +14 this week

16

evo πŸ€– AgentOpen source

Autoresearch loop that has coding agents run gated optimisation experiments on your codebase

β˜… 1.5k

17

Claude Code Agent Monitor πŸ€– AgentOpen source

Self-hosted real-time dashboard for Claude Code and Codex sessions, agents, tools and cost

β˜… 1.0k Β· +23 this week

18

Citadel πŸ€– AgentOpen source

Routing, repo-local memory, guarded workflows and handoffs around Claude Code and Codex

β˜… 922 Β· +-1 this week

19

Agent Swarm πŸ€– AgentOpen source

Self-hosted operating system for delegating work across a lead agent and Docker worker agents

β˜… 850 Β· +18 this week

20

nWave πŸ€– AgentOpen source

Seven-wave, human-gated workflow from idea to TDD-delivered code inside Claude Code

β˜… 616

21

Hivemind πŸ€– AgentFreemium

Shared, searchable session memory that turns agent traces into team skills

β˜… 1.6k Β· +-1 this week

22

Oh My Subagents πŸ€– AgentFree

Local orchestration for Claude and Codex subagent teams with durable, recoverable state

β˜… 179 Β· +36 this week

23

Autoprompt πŸ€– AgentOpen source

Installs a plan, build and independent-review loop into your coding agent

β˜… 1.3k Β· +5 this week

24

Codeman πŸ€– AgentOpen source

Self-hosted mission control to run and monitor terminal AI coding agents from any browser

β˜… 782 Β· +14 this week

25

Obelisk πŸ€– AgentOpen source

Index past coding-agent sessions into local SQLite, queryable by your agent and browsable by you

β˜… 551 Β· +11 this week

26

Subtask πŸ€– AgentOpen source

Claude Code skill and CLI to run tasks as subagents in parallel Git worktrees

β˜… 339 Β· +-1 this week

27

AI-Driven Development πŸ€– AgentOpen source

Cross-agent skills for disciplined AI development, plus a Bash safety hook for Claude Code

β˜… 151 Β· +2 this week

29

Codex Astra Luna Orchestrator πŸ€– AgentOpen source

Codex config where a stronger model orchestrates and a cheaper one executes, with an independent reviewer

β˜… 1.7k Β· +53 this week

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