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diagnose-errors

Skill

Investigates errors across network failures, JavaScript errors, and error clicks to identify what's broken, where, and why. Use when the user says "what's broken", "errors are up", "why are users seeing errors", "JS errors", "network failures", "5xx spike", "something is broken", or wants to triage

30Debugging

Install

git clone https://github.com/amplitude/mcp-marketplace.git ~/.claude/skills/diagnose-errors

What is diagnose-errors?

Investigates errors across network failures, JavaScript errors, and error clicks to identify what's broken, where, and why. Use when the user says "what's broken", "errors are up", "why are users seeing errors", "JS errors", "network failures", "5xx spike", "something is broken", or wants to triage product reliability issues.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~82 tokens of context used while enabled, before you invoke anything

Trust

83/100 · Excellent

2 factors scored below maximum

Documentation

README · ~8 min read

Error Diagnosis & Triage

Investigate product errors by triaging across three auto-captured event types — [Amplitude] Network Request, [Amplitude] Error Logged, and [Amplitude] Error Click — to identify what's broken, which users are affected, and what's causing it. This skill cross-references all three signals to surface causal chains (failed request → JS error → user frustration) rather than treating each in isolation.

This is a reactive investigation skill — the user has a signal (spike, complaint, experiment regression, gut feeling) and wants to understand what's happening. For proactive monitoring, use the monitor-reliability skill instead.

CRITICAL: Event Reference

These are the three auto-captured events this skill operates on. Never guess property names — use exactly these.

[Amplitude] Network Request — Browser network requests. Key properties: [Amplitude] URL, [Amplitude] Status Code, [Amplitude] Duration, [Amplitude] Request Method, [Amplitude] Request Type, [Amplitude] Request Body Size, [Amplitude] Response Body Size, [Amplitude] Start Time, [Amplitude] Completion Time, [Amplitude] Page Path.

[Amplitude] Error Logged — JavaScript errors. Key properties: Error Message, Error Type, Error URL, File Name, Error Lineno, Error Colno, Error Stack Trace, [Amplitude] Error Detection Source.

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