# Ponytail Intensity Modes Explained: lite, full, ultra, and off

> Understand Ponytail intensity modes lite, full, ultra, and off. Control over-engineered code checks from minimal to complete rule sets or disablement.

- Repository: [DietrichGebert/ponytail](https://github.com/DietrichGebert/ponytail)
- Tags: deep-dive
- Published: 2026-09-09

---

**Ponytail provides four intensity modes—lite, full, ultra, and off—that control how aggressively the tool checks for and removes over-engineered code, ranging from minimal essential checks to the complete rule set or complete disablement.**

Ponytail is an open-source code-trimming tool by DietrichGebert that enforces minimal-code philosophy through configurable enforcement levels. The repository implements four distinct **Ponytail intensity modes** that let developers balance between protection and performance according to their workflow needs.

## The Four Ponytail Intensity Modes

Ponytail’s intensity system is documented in [`README.md`](https://github.com/DietrichGebert/ponytail/blob/main/README.md) at line 323 and implemented across the command handlers and status-line scripts. Each mode determines which rules execute during code analysis.

### lite Mode

The **lite** mode applies a minimal set of rules, retaining only the most essential checks. This configuration provides the lightest possible impact on your repository while still offering basic protection against over-engineering. Use this mode when you need fast feedback without comprehensive analysis.

### full Mode (Default)

The **full** mode runs the standard, balanced rule set and serves as the default intensity when no argument is specified. According to the command definition in [`.opencode/command/ponytail.md`](https://github.com/DietrichGebert/ponytail/blob/main/.opencode/command/ponytail.md), this mode enforces all normal Ponytail checks without the extra verbosity of higher intensities. Most users employ this setting for daily development.

### ultra Mode

The **ultra** mode enables the highest-intensity rule set, activating every possible Ponytail rule to aggressively find and remove over-engineered code. When active, the status-line helper scripts in [`hooks/ponytail-statusline.sh`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-statusline.sh) and `hooks/ponytail-statusline.ps1` highlight the prompt in amber to visually indicate this high-intensity state.

### off Mode

The **off** mode disables Ponytail entirely, applying no rules and performing no analysis until a new intensity is selected. This setting effectively pauses the tool without uninstalling it from your environment.

## How to Switch Between Intensity Modes

You control Ponytail intensity through the `/ponytail` slash command or equivalent CLI syntax. If you invoke the command without arguments, it displays the current mode; otherwise, it sets the specified intensity.

```bash

# Display current intensity setting

/ponytail

# Set specific intensity levels

/ponytail lite      # Minimal checks

/ponytail full      # Default rule set

/ponytail ultra     # Highest-intensity checks

/ponytail off       # Disable Ponytail completely

```

For programmatic control in JavaScript or Node environments, import the `runCommand` function from [`hooks/ponytail-activate.js`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-activate.js):

```javascript
import { runCommand } from "./hooks/ponytail-activate.js";

// Switch to ultra intensity
runCommand("ponytail", "ultra");

// Disable Ponytail
runCommand("ponytail", "off");

```

## Visual Indicators in Ultra Mode

When **ultra** mode is active, the shell status-line scripts provide immediate visual feedback. In [`hooks/ponytail-statusline.sh`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-statusline.sh), the implementation checks the current mode variable and applies amber coloring to flag the high-intensity state:

```bash

# Inside hooks/ponytail-statusline.sh

if [ "$MODE" = "ultra" ]; then
  # Apply amber color to indicate ultra mode

fi

```

This visual cue prevents accidental deployment of aggressive checks in production environments.

## Where Intensity Modes Are Implemented

The intensity mode system spans several key files in the DietrichGebert/ponytail repository:

- **[`README.md`](https://github.com/DietrichGebert/ponytail/blob/main/README.md)** – Documents the four intensity modes and their behavioral differences at line 323.
- **[`.opencode/command/ponytail.md`](https://github.com/DietrichGebert/ponytail/blob/main/.opencode/command/ponytail.md)** – Defines the slash-command syntax for toggling between modes.
- **[`hooks/ponytail-statusline.sh`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-statusline.sh)** and **`hooks/ponytail-statusline.ps1`** – Render the amber warning indicator when ultra mode is active.
- **[`hooks/ponytail-mode-tracker.js`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-mode-tracker.js)** – Persists the current intensity setting across terminal sessions.
- **[`hooks/ponytail-activate.js`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-activate.js)** – Exports the `runCommand` function for programmatic mode switching.

## Summary

- **lite** applies minimal rules for the lightest performance impact.
- **full** (default) runs the standard balanced rule set suitable for most development workflows.
- **ultra** activates every rule and triggers amber status-line warnings in [`hooks/ponytail-statusline.sh`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-statusline.sh).
- **off** completely disables the tool without uninstalling it.
- Switch modes using `/ponytail [mode]` or the `runCommand` API from [`hooks/ponytail-activate.js`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-activate.js).

## Frequently Asked Questions

### What is the default Ponytail intensity mode?

The **full** mode is the default intensity when you run `/ponytail` without arguments or install the tool fresh. This balanced setting enforces standard rules without the performance cost of ultra mode or the minimal coverage of lite mode.

### How does ultra mode differ from full mode?

**Ultra** mode activates every available Ponytail rule, making it significantly more aggressive at detecting over-engineered patterns than **full** mode. Additionally, ultra mode triggers amber highlighting in the status-line scripts to warn developers of the heightened inspection level.

### Can I disable Ponytail without uninstalling it?

Yes. Set the intensity to **off** using `/ponytail off` or `runCommand("ponytail", "off")`. This stops all rule enforcement while preserving your configuration in [`hooks/ponytail-mode-tracker.js`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-mode-tracker.js) for easy reactivation later.

### How do I check my current Ponytail intensity setting?

Run `/ponytail` without any arguments to display the active mode. The command reads the persisted state from [`hooks/ponytail-mode-tracker.js`](https://github.com/DietrichGebert/ponytail/blob/main/hooks/ponytail-mode-tracker.js) and outputs the current intensity level directly in your terminal.