# Error Tracking

> Set up error tracking with actionable context. Use when configuring error capture or error boundaries.

- Skill: `nexus-labs-automation/error-tracking` (Agent Skill)
- Install (CLI): `npx skillmds@latest add nexus-labs-automation/error-tracking`
- Raw SKILL.md: https://api.skillmd.com/api/skills/nexus-labs-automation/error-tracking/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: nexus-labs-automation (https://skillmd.com/u/nexus-labs-automation)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/nexus-labs-automation/error-tracking

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# Error Tracking

Capture errors with the context needed to debug them.

## Core Principle

An error without context is useless. Every error should include:

| Context | Why | Example |
|---------|-----|---------|
| `route` | Where it happened | "/checkout" |
| `job_name` | What user was doing | "checkout" |
| `job_step` | Where in the flow | "payment" |
| `user_segment` | Who's affected | "premium" |
| `app_version` | Release correlation | "1.2.3" |

## Error Types to Capture

| Type | Capture Method |
|------|----------------|
| Unhandled exceptions | `window.onerror`, SDK auto-capture |
| Promise rejections | `window.onunhandledrejection` |
| Component errors | Error boundaries |
| Async/await errors | try/catch with context |
| API errors | Fetch/axios interceptors |

## What NOT to Include

| Don't | Why |
|-------|-----|
| Passwords | Security |
| Email/phone | PII |
| Full request bodies | PII, size limits |
| Entire app state | Unbounded |
| Localized messages | Breaks grouping |

## Implementation

See `templates/error-boundary.tsx` for React error boundary with telemetry.

Use Read tool to load template when generating implementation.

## Anti-Patterns

See `references/anti-patterns.md` for common error tracking mistakes.

## Related

- `skills/source-map-setup` - Readable stack traces
- `skills/api-tracing` - API error correlation
- `references/frameworks/*.md` - Framework-specific error handling