Change AI agent mid-project possible?

[oort77]

Can I change from, say, Gemini to Codex after substantial part of the work on the project has been completed, and I want to continue with Codex? Is it possible at all without loss of important files that describe the project?

[JorgeDDW]

install again and select your llm, you'll need to add the constitution file to the new llm you want to start working

[oort77]

Thank you @JorgeDDW! I guess I need also to keep /specs folder, correct?

[JorgeDDW]

yes, everything else is the same.

[jeremyeder]

This is an important topic. Portability of prompts, too. Even between versions of the different CLIs and models...getting comfortable with variance is the most forward looking thing on my mind atm.

[PeteHalsted]

I use 3 agents on an ongoing basis (Gemini CLI, Claude Code, Zed Editor)

I accomplish this by having very clean Claude.md and Gemini.md files, the only thing in them is a couple of specific instructions (subagent usage for claude, a special bash instruction for gemini) And they both import @agents.md. So far in my testing all the major agents support importing in the context/memory files. So all of the common stuff I keep in Agents.md. Bonus a lot of the other agents are now using Agents.md so they automatically pick this up.

And then I take this one step further and most of my Agents.md file is actually just imports for other files. I have a set of modular files (linear, context7, ref, playwright, shadcn, etc) and I just import the ones need into Agents.md at will @AIRules/linear.md, etc. So I instead of having a jumbled mess across all my projects, if I change the linear rules I just drop it into all the projects, and I also can easily turn features on / off by changing which I import. FYI one of my imports is @.specify/memory/constitution.md

[cryptotomte]

This is very interesting. I also use different agents on the same projekt for different purposes, so I wonder if it would be possible for you to share your CLAUDE.md and GEMINI.md as an example I could use for my own projects?

[PeteHalsted]

I have a repository that I share with a group of developers that has my basic setup files etc. in it. Warning this isn't a great organized how do, or anything, just the latest copies of certain files from my system, and it changes dang near every day, or I should so my files change every day and when I remember I update the repository for the rest of the group :-) It is a public repository so you welcome to grab it and take a look. https://github.com/PeteHalsted/claude-project-starter-kit