Voice workflow over CarPlay
Use the phrase “Hey Siri, Jarvis” to start a voice session, ask follow-up questions, and hear replies through CarPlay without operating a screen.
carcode
carcode is an open-source, MIT-licensed tool for using Claude Code by voice through Siri and CarPlay to inspect code and create draft changes.
Overview
carcode is an open-source, MIT-licensed developer tool that lets users interact with Claude Code by voice from a car. A Siri Shortcut carries spoken requests from an iPhone over a Cloudflare tunnel to a Mac, where Claude Code uses the user’s repositories, GitHub CLI, git installation, and configured connectors. Responses are returned as speech through CarPlay.
It is intended for developers who want to check pull requests, inspect CI status, catch up on work messages, or request code changes without using a laptop screen. Changes are restricted to draft pull requests on a carcode branch, while messages, approvals, merges, deletions, and public posts require a spoken confirmation.
Features
Local Claude Code execution
Claude Code runs on the user’s Mac with the normal CLI login and works in the configured repositories rather than through a separate carcode account or API key.
Repository and pull-request work
Ask about pull requests and CI, review diffs, approve a pull request after confirmation, or request a code fix that becomes a draft PR on a `carcode/...` branch.
Connected work tools
Use configured connectors to search Slack, read messages back before sending, and access examples such as Gmail, Calendar, and Drive.
Road-focused interaction
A warm Claude Code session, partial-sentence handling, short spoken responses, background completion, and a live dashboard are designed for hands-free use.
Operational guardrails
The server listens on localhost, the tunnel is token-checked, risky actions require spoken confirmation, shell tools are allowlisted, and message or repository content is treated as data.
Use cases
Review repository status
Ask which pull requests are open, inspect a diff, check CI status, and approve a PR after carcode reads the action back for confirmation.
Start a code fix from the road
Describe a small fix verbally, such as correcting a broken link or README typo, and have Claude Code create a branch, commit the change, push it, and open a draft PR.
Catch up on team communication
Search connected Slack or email sources for updates, hear messages read back, and send a response only after confirming the exact text.
Check the day’s schedule
Ask what is scheduled on a connected calendar while traveling, using the voice interface instead of opening a work application.
Work without CarPlay
Use `npx carcode-cli talk` at a desk to test the workflow or run it without a car; `--quiet` provides text output instead of spoken terminal replies.
Pros and Cons
Pros
- Open-source and MIT-licensed, with installation through `npx carcode-cli`.
- Uses the user’s existing Claude Code login, repositories, GitHub CLI, and configured connectors.
- Supports practical developer workflows including PR review, CI checks, Slack and calendar queries, and draft PR creation.
- Adds confirmation before consequential actions and defaults code changes to draft branches rather than main.
- Provides a terminal `talk` mode and setup utilities for checking status, opening the dashboard, viewing logs, and updating the installation.
Cons
- The setup depends on a Mac that stays on, Claude Code, an iPhone with Siri, and a CarPlay-capable in-car workflow; the source does not document broader device or vehicle support.
- The confirmation rule is implemented as an assistant instruction and is described as a strong guardrail rather than a guarantee.
- The source does not establish separate service costs for Claude or connected tools such as GitHub and Slack.
FAQ
How do I install carcode?
Run `npx carcode-cli` on a Mac. The installer checks the machine, adds missing dependencies, asks for the repos folder, starts carcode, and builds a Siri Shortcut. Add the shortcut in Shortcuts, let it sync to the iPhone through iCloud, then configure Siri to allow use when locked and prefer spoken responses.
What equipment and software does carcode require?
The documented setup uses a Mac that remains on while you drive, Claude Code installed and logged in, an iPhone with Siri on the same iCloud account, and CarPlay for the in-car experience. A Mac mini at home is given as an example. The command-line `talk` mode can be used at a desk without a car.
What can I ask carcode to do?
You say “Hey Siri, Jarvis,” then ask about repositories, pull requests, Slack, email, calendars, or code changes. Claude Code works through the configured local tools and connectors, and answers are spoken back through CarPlay. Long jobs can continue in the background and report when finished.
Does carcode confirm actions before making changes?
carcode asks for spoken confirmation before sending messages, approving or merging pull requests, deleting anything, or posting publicly. Code changes are placed on a `carcode/...` branch as a draft pull request, and the system is instructed not to push to main or force-push.
How much does carcode cost?
The project is described as free, open source, and MIT-licensed. The available source does not specify whether Claude, GitHub, Slack, or other connected services may involve separate costs.
Quick Facts
- Category
- Developer Tool
- License
- MIT
- Pricing
- Free and open source; third-party service costs are not specified
- Primary platform
- Mac with iPhone Siri and CarPlay
- Core engine
- Claude Code
- Installation
- npx carcode-cli
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