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Debugging

Tools for finding and fixing code issues.

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debugging
14

devtools

This skill helps launch and configure the Chrome DevTools MCP server, giving Claude visual access to a live browser for debugging and automation. Use when the user asks to set up browser debugging, launch Chrome with DevTools, configure chrome-devtools-mcp, see what my app looks like, take screenshots of my web application, check the browser console, debug console errors, inspect network requests, analyse API responses, measure Core Web Vitals or page performance, run a Lighthouse audit, test button clicks or form submissions, automate browser interactions, fill out forms programmatically, simulate user actions, emulate mobile devices or slow networks, capture DOM snapshots, execute JavaScript in the browser, or troubleshoot Chrome DevTools MCP connection issues. Supports Windows, Linux, and WSL2 environments.

henkisdabro
henkisdabro
tools
open
debugging
14

performing-systematic-debugging-for-stubborn-problems

Applies a modified Fagan Inspection methodology to systematically resolve persistent bugs and complex issues. Use when multiple previous fix attempts have failed repeatedly, when dealing with intricate system interactions, or when a methodical root cause analysis is needed. Do not use for simple troubleshooting. Triggers after multiple failed debugging attempts on the same complex issue.

ArjenSchwarz
ArjenSchwarz
tools
open
debugging
14

polyflup-history

Chronological log of system improvements and session summaries for PolyFlup.

Niller2005
Niller2005
tools
open
debugging
14

web-validation

Comprehensive web page validation with authentication, screenshot capture, mobile testing, and enhanced error detection

bejranonda
bejranonda
tools
open
debugging
14

bundle-analysis

Analyze and optimize JavaScript bundle size, identify large dependencies, and improve load times. Use when bundles are large, investigating performance issues, or optimizing frontend assets.

sgcarstrends
sgcarstrends
tools
open
debugging
14

ts-morph-analyzer

Use when debugging TypeScript/JavaScript bugs by tracing call chains, understanding unfamiliar codebases quickly, making architectural decisions, or reviewing code quality. Extract function signatures and JSDoc without full file reads, trace call hierarchies up/down, detect code smells, and follow data flow. Triggers on debugging, understanding codebase, architectural analysis, signature extraction, call tracing.

ratacat
ratacat
tools
open
debugging
14

chrome-devtools

Control and inspect Chrome browser using Chrome DevTools Protocol - navigate pages, debug network requests, analyze performance, take screenshots, interact with elements, and automate browser tasks.

johnlindquist
johnlindquist
tools
open
debugging
13

dag-pattern-learner

Learns from DAG execution history to improve future performance. Identifies successful patterns, detects anti-patterns, and provides recommendations. Activate on 'learn patterns', 'execution patterns', 'what worked', 'optimize based on history', 'pattern analysis'. NOT for failure analysis (use dag-failure-analyzer) or performance profiling (use dag-performance-profiler).

erichowens
erichowens
tools
open
debugging
13

dag-performance-profiler

Profiles DAG execution performance including latency, token usage, cost, and resource consumption. Identifies bottlenecks and optimization opportunities. Activate on 'performance profile', 'execution metrics', 'latency analysis', 'token usage', 'cost analysis'. NOT for execution tracing (use dag-execution-tracer) or failure analysis (use dag-failure-analyzer).

erichowens
erichowens
tools
open
debugging
13

dag-execution-tracer

Traces complete execution paths through DAG workflows. Records timing, inputs, outputs, and state transitions for all nodes. Activate on 'execution trace', 'trace execution', 'execution path', 'debug execution', 'execution log'. NOT for performance analysis (use dag-performance-profiler) or failure investigation (use dag-failure-analyzer).

erichowens
erichowens
tools
open
debugging
13

dag-failure-analyzer

Performs root cause analysis on DAG execution failures. Traces failure propagation, identifies systemic issues, and generates actionable remediation guidance. Activate on 'failure analysis', 'root cause', 'why did it fail', 'debug failure', 'error investigation'. NOT for execution tracing (use dag-execution-tracer) or performance issues (use dag-performance-profiler).

erichowens
erichowens
tools
open
debugging
13

fullstack-debugger

Expert debugger for Next.js + Cloudflare Workers + Supabase stacks. Systematic troubleshooting for auth, caching, workers, RLS, CORS, and build issues. Activate on: 'debug', 'not working', 'error', 'broken', '500', '401', '403', 'cache issue', 'RLS', 'CORS'. NOT for: feature development (use language skills), architecture design (use system-architect).

erichowens
erichowens
tools
open
debugging
13

react-performance-optimizer

Optimize React apps for 60fps performance. Implements memoization, virtualization, code splitting, bundle optimization. Use for slow renders, large lists, bundle bloat. Activate on "React performance", "slow render", "useMemo", "bundle size", "virtualization". NOT for backend optimization, non-React frameworks, or premature optimization.

erichowens
erichowens
tools
open
debugging
13

quality-audit-workflow

Comprehensive codebase quality audit with parallel agent orchestration, GitHub issue creation, automated PR generation per issue, and PM-prioritized recommendations. Use for code review, refactoring audits, technical debt analysis, module quality assessment, or codebase health checks.

rysweet
rysweet
tools
open
debugging
13

quality-audit-workflow

Comprehensive codebase quality audit with parallel agent orchestration, GitHub issue creation, automated PR generation per issue, and PM-prioritized recommendations. Use for code review, refactoring audits, technical debt analysis, module quality assessment, or codebase health checks.

rysweet
rysweet
tools
open
debugging
13

test-automation-expert

Comprehensive test automation specialist covering unit, integration, and E2E testing strategies. Expert in Jest, Vitest, Playwright, Cypress, pytest, and modern testing frameworks. Guides test pyramid design, coverage optimization, flaky test detection, and CI/CD integration. Activate on 'test strategy', 'unit tests', 'integration tests', 'E2E testing', 'test coverage', 'flaky tests', 'mocking', 'test fixtures', 'TDD', 'BDD', 'test automation'. NOT for manual QA processes, load/performance testing (use performance-engineer), or security testing (use security-auditor).

erichowens
erichowens
tools
open
debugging
13

code-reviewer

Review code for best practices, bugs, security issues, and improvements. Use when reviewing code, checking PRs, or analyzing code quality.

ShunsukeHayashi
ShunsukeHayashi
tools
open
debugging
13

debugging

Systematic debugging protocol for finding and fixing bugs. Activates for "debug", "fix bug", "not working", "error", "broken", "issue", "fails", "crash", "undefined", "null" problems.

abdullah1854
abdullah1854
tools
open
debugging
13

visual-testing

Screenshot-based visual comparison and regression testing using claude-in-chrome MCP. Captures, compares, and validates UI states to detect layout shifts, visual bugs, and design regressions across viewports.

DNYoussef
DNYoussef
tools
open
debugging
13

debugging-and-troubleshooting

Systematic error diagnosis and debugging workflow for Rust code. Use when code isn't working, tests fail, or runtime errors occur.

ShunsukeHayashi
ShunsukeHayashi
tools
open
debugging
13

session-replay

Analyze claude-trace JSONL files for session health, patterns, and actionable insights. Use when debugging session issues, understanding token usage, or identifying failure patterns.

rysweet
rysweet
tools
open
debugging
13

oberdebug

Use when encountering ANY bug, error, unexpected behavior, test failure, crash, wrong output, missing output, flaky behavior, race condition, regression, "it doesn't work", "something's wrong", "not working as expected", "should do X but does Y", broken functionality, logic error, runtime error, exception, assertion failure, timeout, hang, or any situation where code behavior differs from intent. Triggers on "debug", "fix", "broken", "failing", "investigate", "figure out why", "not working".

ryanthedev
ryanthedev
tools
open
debugging
13

d365fo-debugging

Complete D365 Finance & Operations debugging framework. Routes symptoms to correct playbook (Finance, SCM, WMS, Batch, Security, Integration, Performance, Reporting). Activates for D365, Dynamics, AX, voucher, posting, batch job, SSRS, DMF, work order, wave, security, can't post, missing, wrong amount, slow, stuck.

abdullah1854
abdullah1854
tools
open
debugging
13

atomic-bead-filing

Use when noticing something off (code smell, design smell, workaround) while working and want to capture it without losing flow - grounds observation in codebase and files a proper bead that future agents can execute

delightful-ai
delightful-ai
tools
open
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