feat: Add an --agent flag and interactive prompt.

[cpojer]

This PR adds an --agent flag and an interactive "agent" prompt to the new and migrate commands. It allows selecting the coding agent that the user users, and will write the AGENT.md file from the package into the user's project using the name preferred by the selected agent.

For migrate, it will propose appending to the file if it already exists.

The PR also reorders the vite new prompts.
Before: template, package manager, name, git repo
After: template, name, package manager, agent, git repo

I will add actual content into the AGENTS.md in a follow-up.

[cpojer]

• feat: Add an --agent flag and interactive prompt. #431 👈 (View in Graphite)
• main

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[Copilot]

Pull request overview

This PR adds an --agent flag and interactive prompt to the new and migrate commands, allowing users to select their coding agent and automatically write agent instructions to the appropriate file. The prompts in the vite new command are also reordered for better user flow.

Changes:

• New agent utility module with support for multiple coding agents (ChatGPT, Claude, Copilot, Cursor, JetBrains, etc.)
• Interactive agent selection prompt with skip/append options for existing files
• Reordered vite new prompts: template → name → package manager → agent → git repo

Reviewed changes

Copilot reviewed 29 out of 29 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/global/src/utils/agent.ts	New utility module for agent selection and file writing logic
packages/global/src/utils/index.ts	Exports the new agent utilities
packages/global/src/new/bin.ts	Integrates agent selection into the new command workflow
packages/global/src/new/discovery.ts	Exports inferParentDir function for reuse
packages/global/src/migration/bin.ts	Integrates agent selection into the migration command
packages/global/AGENTS.md	Placeholder agent instructions file
packages/global/package.json	Adds AGENTS.md to published files
README.md	Updates project tagline
packages/global/snap-tests/*	Updates snapshot tests to reflect new AGENTS.md file creation

Comments suppressed due to low confidence (1)

packages/global/src/new/bin.ts:469

• This code block duplicates the logic from lines 363-375 for handling package name and target directory prompting. The duplication suggests this logic was moved earlier in the flow but not fully removed. This creates maintenance burden as changes to the prompting logic need to be made in two places.

  let result: ExecutionResult;
  if (templateInfo.type === TemplateType.builtin) {
    // prompt for package name if not provided
    if (!targetDir) {
      let defaultPackageName = `vite-plus-${templateInfo.command.split(':')[1]}`;
      if (workspaceInfo.monorepoScope) {
        defaultPackageName = `${workspaceInfo.monorepoScope}/${defaultPackageName}`;
      }
      const selected = await promptPackageNameAndTargetDir(defaultPackageName, options.interactive);
      packageName = selected.packageName;
      targetDir = templateInfo.parentDir
        ? path.join(templateInfo.parentDir, selected.targetDir)
        : selected.targetDir;
    }

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[Copilot]

Pull request overview

Copilot reviewed 29 out of 29 changed files in this pull request and generated 1 comment.

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