Feature Request: Support for enabling non-interactive mode using environment variables

[atian25]

Description

Background
When AI Agent use vite to init project, the LLM is prefer to use interactive patterns at the moment.

Suggested solution

Support for enabling non-interactive mode using environment variables, so AI IDE can set env as default to tell vite don't ask for input

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[bluwy]

It's already supported via --no-interactive or if the terminal is non-TTY. The LLM should learn of the flag itself otherwise. I don't think we should add special code paths for them as they're meant to be mimicking a real dev.

[hi-ogawa]

Yesterday we discussed agent auto detection to tweak the default for #20916 and the same can be applied here.

[hi-ogawa]

Also another way is to always put a short message about --no-interactive (or maybe --help) option before starting interactive cli, so that LLM will notice it by itself and try again. I'd like to have a discussion, so let me re-open the issue.

@atian25 From the screenshot, I cannot tell what is the use case of invoking create-vite from agent and how it's getting stuck. Can you explain what's the prompt and response on the left?

[bluwy]

I personally don't know if we should be hand-holding LLMs if they can't do tasks like selecting prompts. It sounds like a technical issue on their end than us.

At most we could document the CLI flags if they aren't already there so it's in /llms.txt. I would prefer not to turn on special options automatically if LLMs are detected because it'll be confusing when an actual dev tries to replicate the step and they get different results.