create with bun says Intent is configured but never writes AGENTS.md

Run the exact tanstack create command with Bun and --intent, then reproduce bunx --bun @tanstack/intent install inside the generated app. Trace the create command's Intent installation path and compare it with #513; done means the intended package is installed, intent.skills is configured as needed, and AGENTS.md is written without reporting a false success.

tanstack create with bun prints TanStack Intent configured and claims AGENTS.md was wired up, but the command it ran failed. No agent config is written. Deps install fine — it's just the Intent step.

bunx @tanstack/cli@latest create buildify-repro \
  --framework React \
  --package-manager bun \
  --toolchain biome \
  --deployment nitro \
  --no-examples \
  --git \
  --intent \
  --yes

◇  Installed dependencies
◇  TanStack Intent configured
◇  Route tree generated
└  Your TanStack app is ready in 'buildify-repro'.

Errors were encountered during the creation of your app:

Command "bunx --bun @tanstack/intent install" did not run successfully. Please run this manually in your project.

After that, node_modules is there, AGENTS.md isn't, and node_modules/.bin/intent points at @tanstack/devtools/bin/intent.js.

Same command inside the app:

bunx --bun @tanstack/intent install

exits immediately with @tanstack/intent is not installed. — no registry fetch.

Two things going on:

1. bunx is running the intent shim from @tanstack/devtools, not the real package. bunx --bun @tanstack/intent@latest install does download, then hits:

   Permissions: failed: intent.skills is not configured.
   

2. Intent 0.4.0 wants a TTY to write package.json#intent.skills on first run (TanStack/intent#241). create still treats intent install as non-interactive (#442).

Not the same as #495 — that one is --no-install. This happens with deps already installed.

#513 uses @tanstack/intent@latest (same as shadcn@latest) and writes intent.skills: ["@tanstack/*"] before install.

@tanstack/cli 0.71.0, bun 1.3.1, macOS