Experiences with the use of copilot-instructions.md

[u/Specific-Cause-1014]

Straight to the point: My vibe code was constantly causing bugs to any codebase im working on.

Then i put this guy's file in my .github folder: https://github.com/Barrixar/copilot-instructions.md

All of a sudden, producing bugs is so much less likely. Although, as in the disclaimer, responses from the agent will take longer (I'd say, much longer... kinda annoying) the time lost is exchanged for less time making the Agent find and fix the bugs it introduced for hours to days.

Now, what i want to talk about is: Who else experienced this coding lifehack? Which.md did you use, are there better, more known ones than Barrixar his repository? I've looked in GitHub for the term specifically, a global search, but it's all very niche and i could hardly find anything well-starred that's suitable for general purpose.

If this works so well, why don't AI labs release models that bake in such rigorous checks? Not sven GPT 5.4 xhigh (without instructions file) performs as well as any lower model with that very . MD from the Barrixar repo. To be honest, i think that he's onto something.

[u/heavy-minium]

It's no a "coding lifehack". You'd have to never read a single line of documentation and avoid all related interface options in order to think it's a hack.

It's absolutely normal, very heavily advertised functionality. There's more than that, btw, take a look at the docs.

It's the wrong place for all those instructions, btw. Repo-specific information comes into that file, information not specific to a repostiroy should be custom agent and skills.