Your first run

Quickstart

  1. 01

    Paste AGENTS.md into your coding agent

    Copy the official instructions and paste them into your coding agent.

    Paste into your coding agent

    Paste AGENTS.md into Codex, Claude Code, Cursor, or another coding agent.

    Open your coding agent

    View official source

    Watch: build a new agent feature

  2. 02

    Ask it to build

    Describe the product or feature you want. The coding agent will build the product interface and connect your backend to server-side agents through HarnessRouter.

    Sample prompts01 / 04

    Build a codebase fixer agent product with an interface inspired by Cursor.

    Finish copying AGENTS.md to unlock
  3. 03

    Add your API key securely

    When the coding agent opens a secure secret modal, create a Workspace API key and paste it into that modal. The coding agent stores it as HR_API_KEY and continues the build.

    Create API key

    Paste the key only into the secure modal opened by your coding agent. Never paste it into normal chat, source files, AGENTS.md, browser code, logs, or screenshots.

  4. 04

    Run a task, then manage your harnesses

    Run one task through your product and confirm streamed progress, the final result, files or artifacts, and the trace.

    Your product serverHarnessRouter Cloud
    Open agent harnesses

    View configured harnesses, tasks, progress, traces, files, artifacts, results, sandboxes, limits, and settings.