crashlytics

Included with Lifetime

$97 forever

Generate crash reports from Firebase Crashlytics with automated fix proposals, severity scoring, and developer assignments via git blame. Use when analyzing crashes, triaging production issues, or generating crash triage reports.

Code Review

What this skill does


# Crashlytics

Generate crash reports from Firebase Crashlytics for iOS and Android with automated fix proposals and developer assignments.

## When to Use

- User asks to analyze crashes or crash reports
- User wants to triage production issues from Crashlytics
- User asks for crash severity analysis or fix proposals
- User mentions Firebase Crashlytics

## Commands

### `/crash-report`

Analyzes Crashlytics crashes and generates a triage report. See `commands/crash-report.md` for the full workflow, platform-specific analysis rules, and error handling.

**Process:**
1. Validate Firebase MCP server connection (test with a simple query first)
2. Fetch fatal errors from Crashlytics with stack traces and occurrence counts
3. Launch subagents for deep analysis of each crash (max 10 concurrent)
4. Extract stack traces, search codebase for crash locations
5. Identify root causes and calculate severity scores
6. Propose fixes with before/after code snippets
7. Use git blame to assign developers
8. Generate `crash-report-[YYYY-MM-DD].md`

**If validation fails** (MCP unavailable, no crashes found, auth error), the command file includes specific recovery steps for each scenario.

### Example Output Structure

```markdown
## Critical Issues (Score > 70)
### NullPointerException in CheckoutViewModel.kt:142
- **Severity**: 85/100 | **Count**: 1,247 | **Trend**: ↑
- **Root cause**: Force-unwrap on nullable payment response
- **Assigned**: @developer (last modified 2025-03-10)
- **Fix**: Replace `!!` with safe call + fallback
```

## Requirements

- Firebase project with Crashlytics enabled
- Git repository
- MCP server config (`.mcp.json` included in this skill)

### MCP Server Setup

This skill bundles `.mcp.json` with the Firebase Crashlytics MCP server:

```json
{
  "mcpServers": {
    "firebase": {
      "command": "npx",
      "args": ["-y", "firebase-tools@latest", "experimental:mcp", "--only", "crashlytics"]
    }
  }
}
```

## Severity Score

| Factor | Weight | High Example | Low Example |
|--------|--------|-------------|-------------|
| Crash frequency | 40% | 1000+ occurrences | < 10 occurrences |
| Affected users | 30% | Wide user base | Single device |
| Pattern criticality | 30% | Memory / data loss | UI glitch |

## Developer Assignment

1. Last modifier of crashing line (`git blame`)
2. CODEOWNERS file owner
3. Most frequent contributor (`git log --follow`)
4. Module owner (Package.swift or build.gradle)

Skip developers with no commits in the last 6 months.

Files: 5

Size: 12.2 KB

Complexity: 21/100

Category: Code Review

Source: https://github.com/artemnovichkov/skills/tree/main/skills/crashlytics

Related in Code Review

gstack

Included

Fast headless browser for QA testing and site dogfooding. Navigate pages, interact with elements, verify state, diff before/after, take annotated screenshots, test responsive layouts, forms, uploads, dialogs, and capture bug evidence. Use when asked to open or test a site, verify a deployment, dogfood a user flow, or file a bug with screenshots. (gstack)

Code Reviewscriptsfeatured

startup-due-diligence

Included

Legal due diligence review for seed-stage and Series A startups (US, Delaware C-Corp focus). Supports both investor and founder perspectives. Capabilities include: (1) Interactive document review and issue spotting; (2) Document request list generation; (3) Cap table and SAFE/convertible note analysis; (4) Red flag identification with severity ratings; (5) Diligence report generation. TRIGGERS: due diligence, DD, startup investment, cap table review, Series A, seed round, investor diligence, legal review startup, SAFE analysis, convertible note, 409A, founder vesting.

Code Reviewscripts

interview-master

Included

This skill should be used when the user asks to "generate interview questions", "prepare for interview", "optimize resume", "conduct mock interview", "analyze git commits for resume", "generate resume from code", "review my resume", or mentions interview preparation, career assistance, or extracting project experience from git history. Provides comprehensive interview and career development guidance for both job seekers and interviewers.

Code Reviewscripts

fix-issue

Included

Fixes GitHub issues using parallel analysis agents for root cause investigation, code exploration, and regression detection. Reads issue context from gh CLI, searches codebase and memory for related patterns, generates a fix with tests, and links the resolution back to the issue via PR. Includes prevention analysis to avoid recurrence. Use when debugging errors, resolving regressions, fixing bugs, or triaging issues.

Code Reviewscripts

sf-apex

Included

Generates and reviews Salesforce Apex code with 150-point scoring. TRIGGER when: user writes, reviews, or fixes Apex classes, triggers, test classes, batch/queueable/schedulable jobs, or touches .cls/.trigger files. DO NOT TRIGGER when: LWC JavaScript (use sf-lwc), Flow XML (use sf-flow), SOQL-only queries (use sf-soql), or non-Salesforce code.

Code Reviewscripts

swift-development

Included

Comprehensive Swift development for building, testing, and deploying iOS/macOS applications. Use when Claude needs to: (1) Build Swift packages or Xcode projects from command line, (2) Run tests with XCTest or Swift Testing framework, (3) Manage iOS simulators with simctl, (4) Handle code signing, provisioning profiles, and app distribution, (5) Format or lint Swift code with SwiftFormat/SwiftLint, (6) Work with Swift Package Manager (SPM), (7) Implement Swift 6 concurrency patterns (async/await, actors, Sendable), (8) Create SwiftUI views with MVVM architecture, (9) Set up Core Data or SwiftData persistence, or any other Swift/iOS/macOS development tasks.

Code Reviewscripts