/copilotkit-cli

name: copilotkit-cli
description: "Use for the CopilotKit CLI — `npx copilotkit@latest`. Covers proving a project's wiring with `verify` before debugging anything by hand, scaffolding with `create`, signing in and selecting a hosted Intelligence project, agent-assisted onboarding of an existing app, generating type-safe agent ids, and importing thread history. Reach for `verify` first whenever a CopilotKit app is not working."
version: 1.1.0

CopilotKit CLI

npx copilotkit@latest <command> --via skill:copilotkit-cli

Keep `--via skill:copilotkit-cli` on every command you run from this skill. It only tells CopilotKit's telemetry that the call came from this skill, and the command ignores it. If the CLI reports `Unknown option '--via'`, npx ran an old cached version: run the command again without the flag.

`--help` on any command prints its flags. The commands below are the ones worth knowing before you start reading someone's project by hand.

`verify` — do this before debugging

First decide whether the app uses hosted Intelligence. `verify` checks for it by default, and an open-source app fails those checks every time.

• **No Intelligence:** nothing constructs `CopilotKitIntelligence` where the runtime is

built, and there is no `.copilotkit/project.json`. Run the open-source check, with an agent id the runtime registers:

  npx copilotkit@latest verify --expect-runtime oss --round-trip --agent <id> --json --via skill:copilotkit-cli

`--round-trip --agent <id>` is required here. Without it the round trip is not attempted and the command cannot pass.

• **Otherwise:** run the default check.

  npx copilotkit@latest verify --json --via skill:copilotkit-cli

Do not run `login` or `project select` only to make `verify` pass. Those commands set up hosted Intelligence. They do not fix an open-source app, and `verify` still fails on it afterward, because the runtime never consumes the credential.

One command replaces the manual survey. It settles up to eleven things: a hosted project is selected; the project API key is present, loadable by the app, and authenticates; the runtime responds, declares an agent, actually consumes the credential, and serves the thread routes; the frontend serves its own assets; the runtime accepts the browser's origin; and the installed CopilotKit packages match the version the runtime reports. It also reports the runtime version, the agent framework in use, whether transcription is wired, the realtime gateway wiring, and the license state.

Eleven is the ceiling, not a promise. The last three are omitted when there was nothing to check them against — no frontend origin was found, or no installed packages were. Count `checks[]` rather than assuming a fixed set. With `--expect-runtime oss` the hosted-project and credential checks do not apply at all, so that run is a smaller set.

Crucially it names **which URL it probed and where that URL came from** — the project's `runtimeUrl`, an environment variable, the app's own dev configuration, or an assumed default. A survey done by hand cannot tell you that, and the provenance changes the verdict: nothing answering at a URL **the project named** is a FAIL, while nothing answering at an **assumed** default is UNKNOWN, because an app on a port the command never learned is not a wiring failure.

Useful flags:

• `--frontend-url <origin you actually open>` — adds the browser-facing checks, including a

real CORS preflight when that origin differs from the runtime's

• `--round-trip` — also runs the agent and reads its answer back. Costs a model call, so it

is opt-in

• `--expect-runtime oss` — for a self-hosted runtime with no Intelligence. It exits zero

only when `/info` declares the named agent, reports no Intelligence entitlement, and `--round-trip --agent <id>` passes

• `--agent <id>` — which declared agent to run, when several are registered
• `--runtime-url <url>` — probe this endpoint instead of the one read from the project
• `--header '<name>: <value>'` — repeatable. Needed when the project's `identifyUser` reads

a session the CLI does not carry

• `--timeout <seconds>` — how long to wait for an answer, default 90

Read `checks[]` and fix in the order given:

• The checks **chain**. A later check that could not run says so and names the earlier one to

fix first, so the first failure is the real one.

• `UNKNOWN` means the check could not run. It never means the check passed, and the command

exits non-zero unless every check passed.

What `verify` does not cover

Reach past it only once it is clean.

• **Tool execution.** `--round-trip` deliberately asks a question that needs no tools and

sends no context, so a passing round trip says nothing about whether your tools work.

• **Event ordering and streaming.** It reports pass or fail on a run, not the sequence inside

it. A run that starts and never finishes, or stalls mid-stream, is a job for the Inspector.

• **State synchronisation.** Snapshot-versus-delta divergence is agent behaviour, not wiring.

Starting a project

npx copilotkit@latest init --via skill:copilotkit-cli   # `create` is an alias for it

Prompts for a name and framework, scaffolds a starter, signs you in when needed, and connects the app to a cloud-hosted Intelligence project. The name it asks for names the new directory, so this is the path for a project that does not exist yet. For an app you already have, use `onboard start` below.

To add CopilotKit to an existing app, either follow the [quickstart](/quickstart), or hand the job to your coding agent:

npx copilotkit@latest onboard start --via skill:copilotkit-cli

That runs an agent-guided flow over the repository you are already in, with checkpoints and proof steps rather than a scaffold. `onboard start --intent <feature>` targets one feature on an app that already has CopilotKit.

Signing in and picking a project

npx copilotk