Claude Code vs. Codex: Loops, Graphs, and Harnesses

Claude Code vs. Codex: Loops, Graphs, and Harnesses

This is a casual pair-programming meetup for developers experimenting with Claude Code, Codex, and agentic coding workflows.
There is no formal presentation and no fixed curriculum. Bring a laptop, a repository, a side project, or a workflow you want to test. We will work in small groups, compare approaches, debug problems, and share what is working.

Possible areas to explore include:

Building iterative coding-agent loops
Comparing Claude Code and Codex on the same task
Designing graph-based agent workflows
Creating reusable coding harnesses
Managing context across large repositories
Running tests and validating agent-generated changes
Using sandboxes, permissions, and approval steps
Coordinating subagents or parallel tasks
Measuring latency, token usage, cost, and completion quality
Debugging failed or incomplete agent runs

You do not need to be an expert in either tool. This meetup is for people who want hands-on time to experiment, pair with other developers, and learn through building.
Bring something you are working on, or join someone else’s project.
Hosted by Coffee & Code Philadelphia.

Coffee & Code Philadelphia
Website: https://www.codephilly.com
Meetup: https://www.meetup.com/code-coffee-philly/
LinkedIn: https://www.linkedin.com/company/code-coffee-philadelphia
Instagram: https://www.instagram.com/coffeecodephilly
Discord: https://discord.gg/2ad8NmvC2
Linktree: https://linktr.ee/codecoffeephilly
Substack: https://substack.com/@codecoffeephilly