Support AGENTS.md

[fmichaut-diff]

AGENTS.md is a file that most AI agents read as an initial prompt.

Here's more information : https://github.com/agentsmd/agents.md

Could you add support for this ?

[ncaq]

For now, I'm using symbolic links in my shared projects to unify these files:

ln -s .github/copilot-instructions.md CLAUDE.md
ln -s .github/copilot-instructions.md AGENTS.md

If there are additional benefits beyond this approach, I'd love to hear about them!

[fmichaut-diff]

On the projects I'm working on, we don't intend to share the Agents files in the repo. Thus it doesn't make sense for them to be stored under .github (tho I could .gitignore them).

The main reason I'd like to be able to use AGENTS.md normally, is because that's what VSCode does with it's Copilot extension, so that would bring parity with my coworkers who use VSCode (and thus we would only need to gitignore a single file, instead of one for each editor)

The reasoning is that we all use AI differently, and thus will have different preferences in how we like it to behave.
While a main version-controlled file might be interesting for project-wide settings that all contributors have in common, having a tailored, personal one is better (even better would be to have best of both worlds obviously).

Might I suggest a simple configuration value for the path of the file ? It can default to .github/copilot-instructions.md, but I could override it to AGENTS.md. (or maybe it would support multiple values and select the first one that it finds ?)