add --addons ultracite command hangs indefinitely due to interactive prompts

[SimoMay]

Bug Description

When running bunx create-better-t-stack add --addons ultracite --install, the command hangs indefinitely waiting for user input during the ultracite setup process.

Environment

• Better-T-Stack version: 3.2.20
• Ultracite version: 6.3.0
• Package manager: bun
• Operating system: macOS

Steps to Reproduce

1. Run: bunx create-better-t-stack add --addons ultracite --install
2. Command displays "Setting up Ultracite..."
3. Command hangs at "Which agent hooks do you want to enable?" prompt

Root Cause Analysis

The issue occurs because:

1. Better-T-Stack expects non-interactive behavior: It calls ultracite with CI: "true" environment variable expecting it to skip prompts
2. Ultracite doesn't respect CI mode: Even with CI=true, ultracite still shows interactive prompts for "agent hooks" and "additional integrations"
3. Command construction: Better-T-Stack runs: bunx ultracite@latest init --pm bun --frameworks react --editors vscode --agents claude --skip-install with CI=true

Validation

I've confirmed the issue by testing:
CI=true bunx ultracite@latest init --pm bun --frameworks react --editors vscode --agents claude --skip-install
The ultracite CLI help output shows no --yes or --no-interactive flags, and CI=true is not documented as supported.

Expected Behavior

Either:

1. Ultracite should respect CI=true and skip all interactive prompts, OR
2. Better-T-Stack should implement a fallback when ultracite fails to run non-interactively

Actual Behavior

Command hangs indefinitely waiting for user input, breaking the automation chain.

Related Issues

• Ultracite issue: haydenbleasel/ultracite#384 - Root cause: ultracite doesn't respect CI environment variable

[AmanVarshney01]

ahhhhhhhhhhh how many times he will update the cliiiii

fixing

[AmanVarshney01]

why no flags for agent hooks :( :(

[AmanVarshney01]

I just patched my cli to run ultracite and fumadocs without suppressing their cli output. It's ugly and i absolutely hate how the cli is cluttered with ultracite and fumadocs logo and cli outputs but i dont think there is any other way

I can't stop these guys from shipping but every week or so my cli break because of their updates. I love how starlight's cli is stable and works all the time.

Thanks for letting me know dont know how long this was broken in my cli. shit happens. sorry!

[haydenbleasel]

@AmanVarshney01 we just added --hooks flag yesterday. Was missing from the CLI definition because I'm an idiot. Just made a patch release that fixes this - 6.3.1.

I've also made a PR for hooks support @ #674

Then I'll find a way of making Ultracite more stable for you @ haydenbleasel/ultracite#384

[haydenbleasel]

@AmanVarshney01 Done. In Ultracite 6.3.2+ you can run:

CI="true" npx ultracite init --pm npm

# OR

CI="1" npx ultracite init --pm npm

# OR

npx ultracite init --pm npm --quiet

In quiet mode, Ultracite will:

• Skip all interactive prompts
• Use sensible defaults for all options
• Suppress ASCII art, spinners, and log messages
• Exit cleanly with code 0 on success or 1 on failure