Install the Polylane CLI

One command on macOS or Linux. Fetching this URL from a terminal (curl, wget) returns the script itself.

curl -fsSL https://polylane.com/install | bash

What the script does

Downloads the latest CLI release from GitHub, verifies its sha256, and installs it to ~/.polylane/bin. Pin a version with POLYLANE_VERSION=v0.2.1, or change the destination with POLYLANE_PREFIX.
Adds the install directory to your PATH and verifies the install with polylane --version.
Runs polylane setup to wire the CLI into your coding agents: detects Claude Code, Cursor, OpenCode, Codex, Windsurf, Zed, and VS Code, installs the Polylane agent skill where the agent supports skills, and registers the Polylane MCP server in each agent's own config. Skip it with bash -s -- --no-setup or POLYLANE_SKIP_SETUP=1.
Needs Node.js 20+; without it, falls back to Homebrew, which installs Node as a dependency.
When you connect GitHub, Polylane opens its first pull request in your most active repository and the script prints the URL as soon as it is up.
Not ready to connect GitHub? The script offers the no-connect path instead: your coding agent publishes a live map of your repository, with real findings, through the Polylane maps MCP server at maps.polylane.com/mcp. No connections required, and declining a connection is never a dead end.
Safe to re-run: an existing install is upgraded in place.

polylane auth login

Opens the OAuth browser flow. On SSH or headless machines use polylane auth login --no-browser. Full walkthrough in the getting started guide.

brew install coreplanelabs/tap/polylane        # Homebrew
npm install -g @coreplane/polylane             # npm (Node.js 20+)