Obsidian Observability

Overview

Implement production observability for Obsidian plugins: a structured logger with levels and ring buffer history, a metrics collector with counters/gauges/timers, an error tracker with deduplication, and a debug sidebar panel that displays all of it in real time. Every component is copy-pasteable and uses only Obsidian's built-in APIs.

Prerequisites

• Working Obsidian plugin (see obsidian-core-workflow-a)
• TypeScript strict mode enabled
• Familiarity with ItemView for the debug panel

Instructions

Step 1: Structured Logger with Levels and History

// src/services/logger.ts
type LogLevel = 'debug' | 'info' | 'warn' | 'error';

const LEVEL_PRIORITY: Record<LogLevel, number> = {
  debug: 0, info: 1, warn: 2, error: 3,
};