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codex-claude-cursor-loop

Orchestrates a triple-AI engineering loop where Claude plans, Codex validates logic and reviews code, and Cursor implements, with continuous feedback for optimal code quality

749stars195forksUpdated 2/17/2026

Security Assessment

Safe(100/100)
Security Score100/100

About codex-claude-cursor-loop

The codex-claude-cursor-loop skill orchestrates a structured triple-AI engineering workflow designed to improve code quality through sequential validation. It establishes a disciplined loop in which Claude handles architectural planning and final review, Codex validates logic and reviews code for issues, and Cursor Agent performs implementation. By enforcing a step-by-step progression—Claude plans, Codex validates, Cursor implements, Codex reviews, and Claude performs a final check—the skill reduces logical errors, architectural flaws, and security concerns before and after code is written. This structured approach addresses common problems in software development such as incomplete planning, overlooked edge cases, and insufficient review cycles.

The skill provides clearly defined phases, including detailed planning, automated plan validation using Codex with configurable reasoning effort, iterative refinement loops based on feedback, and controlled implementation sessions with Cursor Agent. It supports both new and resumed Cursor sessions, requires explicit model selection, and recommends structured JSON output for automation. Key capabilities include sandboxed plan validation, structured feedback summarization, session ID management for continuity, and post-implementation code review using Codex to detect bugs, performance issues, and security concerns. The workflow emphasizes transparency, repeatability, and continuous improvement across iterations.

This skill is well suited for engineering teams, technical leads, and developers who want a systematic, multi-model validation pipeline for complex tasks. It is particularly useful in projects requiring high code reliability, architectural scrutiny, and iterative refinement. Teams adopting AI-assisted development workflows can use this skill to formalize collaboration between planning, implementation, and review agents while maintaining structured control over each phase of the engineering lifecycle.

FAQ

How does the engineering loop work?

The loop follows a sequential process: Claude creates a detailed plan, Codex validates the plan for logic, edge cases, architecture, and security, Cursor Agent implements the validated plan, Codex performs a code review, and Claude conducts a final review. If issues are found at any stage, the workflow repeats until the output is solid.

Which models can be used in this workflow?

For plan validation with Codex, models such as gpt-5 or gpt-5-codex can be selected with configurable reasoning effort (low, medium, or high). For implementation in Cursor Agent, available models include sonnet-4, sonnet-4-thinking, gpt-5, gpt-4o, and composer-1.

Can I resume an existing Cursor session?

Yes. The workflow supports both starting a new session and resuming an existing one. Resuming can be done using a specific chat ID or by continuing the latest session, and the session ID must be stored for subsequent calls.

What output formats are supported during implementation?

The implementation phase recommends using structured JSON output for automation. Options such as streaming partial output and enabling browser automation are also available depending on execution needs.

What happens if Codex finds issues in the plan?

If issues are identified, the concerns are summarized to the user, the plan is refined, and the user is asked whether to re-validate the revised plan or proceed. The validation loop can repeat until the plan is considered solid.

All Files

2 files
SKILL.md11.5 KB
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README.md6.7 KB
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Install codex-claude-cursor-loop

Download and extract the skill files to your .claude/skills/ directory.

Quick Setup:

  1. Copy the skill folder to .claude/skills/
  2. Claude will automatically detect and use the skill