vercel flags inspect supports --json output

Introduced 2026-09-11 · score 0.97

HOW TO USE IT

When a workflow needs structured output for a feature flag, run `vercel flags inspect <flag> --json` to print its definition to stdout.

WHY THIS HELPS

Inspect a feature flag definition in a script or other workflow that consumes structured output.

REQUIREMENTS AND LIMITATIONS

• Version: 59.16.0
• <flag> (required): Flag key to inspect. The CLI docs show `[flag]` as optional; supply the flag key to inspect a specific definition.
• --json: Output the flag definition as JSON to stdout; added in Vercel CLI 59.16.0.
• Prerequisite: Use an authenticated Vercel CLI. Install with `pnpm i -g vercel`.
• Prerequisite: CLI-only flag management does not require SDK packages, Toolbar, Flags Explorer, or `.env.local`.

FIRST-PARTY EVIDENCE

• https://vercel.com/docs/cli/release-notes#vercel@59.16.0
• https://vercel.com/docs/cli/flags
• https://github.com/vercel/vercel-plugin/blob/main/skills/flags-sdk/SKILL.md

Check the installed version and the source before using it. Entry JSON

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