> ## Documentation Index
> Fetch the complete documentation index at: https://doc.helptor.in/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

* **No core modification architecture:** plugin layer loads before Sngine and keeps custom logic outside core files.
* **Update-safe deployment:** core upgrades do not remove plugin folders or plugin registry state.
* **Central lifecycle management:** install, enable, disable, and uninstall from one admin screen.
* **Manifest-driven validation:** each plugin is discovered and verified through `plugin.json` metadata.
* **Hook and filter API:** plugins can subscribe to request, AJAX, and output-buffer events without template edits.
* **Fail-safe loading:** plugin runtime is designed to avoid full-site crash from one plugin failure.
* **Admin integration path:** plugin settings pages are accessible directly from `/admincp/plugins`.
* **Multi-environment support:** works on shared hosting and VPS with correct `auto_prepend_file` setup.