{
  config,
  lib,
  pkgs,
  inputs,
  ...
}:
let
  #   sisyphus/oracle/prometheus → default/slow/plan = opus
  #   librarian/explore/quick   → smol/commit = haiku
  ompSettings = {
    modelRoles = {
      default = "claude-opus-4-6:high";
      smol = "claude-haiku-4-5:low";
      slow = "claude-opus-4-6:xhigh";
      plan = "claude-opus-4-6:high";
      commit = "claude-haiku-4-5:low";
    };
  };

  # provider config — openrouter API key read from secrets at runtime
  ompModels = {
    providers = {
      openrouter = {
        apiKey = "!cat ${../secrets/openrouter_api_key}";
      };
    };
  };
in
{
  home.packages = [
    inputs.llm-agents.packages.${pkgs.stdenv.hostPlatform.system}.omp
  ];

  # main settings: ~/.omp/agent/config.yml (JSON is valid YAML)
  home.file.".omp/agent/config.yml".text = builtins.toJSON ompSettings;

  # model/provider config: ~/.omp/agent/models.yml
  home.file.".omp/agent/models.yml".text = builtins.toJSON ompModels;

  # global instructions loaded at startup
  home.file.".omp/agent/AGENTS.md".text = ''
    You are an intelligent and observant agent.
    If instructed to commit, disable gpg signing.
    You are on nixOS, if you don't have access to a tool, you can access it via the `nix-shell` command.

    ## Think deeply about everything.
    When given a problem, break it down, abstract it out, understand the fundamentals, then solve it in the real world.

    ## Misc
    For long-running commands, make sure you set the timeout of the Bash tool provided to a larger value.
    Do NOT read secret files. Do not directly read files that are api keys or are contextually sensitive.

    ## Behavior
    Do not be sycophantic in your responses.
    Do not use emojis unless explicitly asked to. This includes in code.
    Use Test Driven Development methodology.

    ## Nix
    For using `nix build` append `-L` to get better visibility into the logs.
    If you get an error that a file can't be found, always try to `git add` the file before trying other troubleshooting steps.
  '';

  home.file.".omp/agent/skills/android-ui/SKILL.md".text = ''
    ---
    name: android-ui
    description: Android UI automation via ADB. Use for any Android device interaction, UI testing, screenshot analysis, element coordinate lookup, and gesture automation.
    ---

    # Android UI

    ## 1. Taking Screenshots
    ```
    adb exec-out screencap -p > /tmp/screen.png
    ```
    Captures the current screen state as a PNG image.

    ## 2. Analyzing Screenshots
    Read the screenshot file to understand the current screen state and identify UI elements.

    ## 3. Getting Precise Element Coordinates
    UI Automator dump - extracts the full UI hierarchy as XML:
    ```
    adb shell uiautomator dump /sdcard/ui.xml && adb pull /sdcard/ui.xml /tmp/ui.xml
    ```
    Then grep for specific elements:
    ```sh
    # Find by text
    grep -oP 'text="Login".*?bounds="[^"]*"' /tmp/ui.xml
    # Find by class
    grep -oP 'class="android.widget.EditText".*?bounds="[^"]*"' /tmp/ui.xml
    ```
    Bounds format: `[left,top][right,bottom]` — tap center: `((left+right)/2, (top+bottom)/2)`

    ## 4. Tapping Elements
    ```
    adb shell input tap X Y
    ```
    Where X, Y are pixel coordinates from the bounds.

    ## 5. Text Input
    ```
    adb shell input text "some_text"
    ```
    Note: Special characters need escaping (`\!`, `\;`, etc.)

    ## 6. Other Gestures
    ```sh
    # Swipe/scroll
    adb shell input swipe startX startY endX endY duration_ms
    # Key events
    adb shell input keyevent KEYCODE_BACK
    adb shell input keyevent KEYCODE_ENTER
    ```

    ## 7. WebView Limitation
    - UI Automator can see WebView content if accessibility is enabled
    - Touch events on iframe content (like Cloudflare Turnstile) often fail due to cross-origin isolation
    - Form fields in WebViews work if you get exact bounds from the UI dump

    ## Typical Flow
    1. Take screenshot → analyze it (get rough layout)
    2. Dump UI hierarchy → grep for exact element bounds
       - NEVER ASSUME COORDINATES. You must ALWAYS check first.
       - Do this before ANY tap action as elements on the screen may have changed.
    3. Calculate center coordinates from bounds
    4. Tap/interact
    5. Wait → screenshot → verify result
  '';

  # omp has a built-in browser tool with NixOS auto-detection,
  # but this skill provides playwright MCP as a supplementary option
  home.file.".omp/agent/skills/playwright/SKILL.md".text =
    let
      browsers = pkgs.playwright-driver.browsers;
      chromiumDir = builtins.head (
        builtins.filter (n: builtins.match "chromium-[0-9]+" n != null) (
          builtins.attrNames browsers.passthru.entries
        )
      );
      chromiumPath = "${browsers}/${chromiumDir}/chrome-linux64/chrome";
    in
    ''
      ---
      name: playwright
      description: Browser automation via Playwright MCP. Use as an alternative to the built-in browser tool for Playwright-specific workflows, testing, and web scraping. Chromium is provided by NixOS.
      ---

      # Playwright

      ## Browser Setup
      Chromium is provided by NixOS. Do NOT attempt to download browsers.

      - Chromium path: `${chromiumPath}`
      - Browsers path: `${browsers}`

      ## Usage
      Launch the Playwright MCP server for browser automation:
      ```bash
      npx @playwright/mcp@latest --executable-path "${chromiumPath}" --user-data-dir "${config.home.homeDirectory}/.cache/playwright-mcp"
      ```

      Set these environment variables if not already set:
      ```bash
      export PLAYWRIGHT_BROWSERS_PATH="${browsers}"
      export PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1
      ```
    '';
}