1,660 free skills
Debugging skills
Skills for systematic debugging — reproducing bugs, reading stack traces, bisecting regressions, and diagnosing flaky failures.
Sourced from real, public repositories — synced daily, never invented.
1,660 free skills
Skills for systematic debugging — reproducing bugs, reading stack traces, bisecting regressions, and diagnosing flaky failures.
Sourced from real, public repositories — synced daily, never invented.
15 tools across six categories
13 of them never send your data anywhere
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tailwind
boraoztunc/skills
Tailwind CSS v4.2 browser-runtime patterns for HyperFrames compositions. Use when scaffolding or editing projects created with `hyperframes init --tailwind`, writing Tailwind utility classes in composition HTML, adding CSS-first Tailwind v4 theme tokens, debugging v3 vs v4 syntax, or deciding when to compile Tailwind to CSS instead of using the browser runtime.
swift-networking
johnrogers/claude-swift-engineering
Use when implementing Network.framework connections (NWConnection, NetworkConnection), debugging connection failures, migrating from sockets/URLSession streams, or handling network transitions. Covers UDP/TCP patterns, structured concurrency networking (iOS 26+), and common anti-patterns.
debugging-with-ably-cli
ably/agent-skills
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oma-debug
gracefullight/stock-checker
Bug diagnosis and fixing specialist - analyzes errors, identifies root causes, provides fixes, and writes regression tests. Use for bug, debug, error, crash, traceback, exception, and regression work.
debug-methodical
thebeardedbearsas/claude-craft
Debugging méthodique en 4 phases (reproduce → isolate → fix → verify). Use when investigating a bug, regression, flaky test, or unexpected behavior.
ascendc-operator-precision-debug
ascend/agent-skills
AscendC 算子精度问题调试与根因定位。当算子精度测试失败（allclose 不通过、结果偏差、输出全零/NaN 等）时使用。流程：误差分布分析 → 代码易错点审查 → 实验隔离 → printf/DumpTensor 插桩 → 修复验证。关键词：精度调试、精度问题、结果不一致、误差定位、allclose 失败、输出偏差、NaN、全零、precision debug。
docker
rightnow-ai/openfang
Docker expert for containers, Compose, Dockerfiles, and debugging
kernel-debugging
mohitmishra786/low-level-dev-skills
Linux kernel debugging skill for kgdb, kdb, ftrace, kprobes, and crash analysis. Use when setting up kgdb over serial, using ftrace and trace-cmd, inserting kprobes, enabling dynamic debug, or analyzing kdump with crash. Activates on queries about kgdb, kdb, ftrace, kprobes, dyndbg, kdump, or kernel dmesg levels.
debugging
iliaal/ai-skills
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regex-expert
rightnow-ai/openfang
Regular expression expert for crafting, debugging, and explaining patterns
advanced-evaluation
shipshitdev/skills
Design and operate LLM-as-a-Judge evaluation systems using direct scoring, pairwise comparison, rubric calibration, evaluator bias mitigation, confidence scoring, and automated quality assessment. Use when building LLM-as-judge systems, comparing model responses, calibrating rubrics, debugging inconsistent evaluations, or designing A/B tests for prompt or model changes.
typescript-mcp
secondsky/claude-skills
MCP servers with TypeScript on Cloudflare Workers using @modelcontextprotocol/sdk. Use for API integrations, stateless tools, edge deployments, or encountering export syntax, schema validation, memory leak, CORS, auth errors.
coding-protocol
lencx/skills
Risk-scaled repo execution and code-evidence protocol. Skip architecture-only work, explanation, contract-preserving prose, and status. Use for contract changes, debugging, code review, implementation plans, and Git mutation; mixed tasks: only those parts.
run-parallel-agents-feature-debug
ulpi-io/skills
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debugging-protocol
jwilger/agent-skills
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dynamic-debugger
rysweet/amplihack
Interactive debugging via DAP-MCP for multiple languages with natural language commands
aws-cli
oldwinter/skills
This skill should be used when users need to interact with AWS services via CLI. It covers all AWS services including EC2, ECS, EKS, Lambda, S3, RDS, DynamoDB, VPC, Route53, CloudFront, Bedrock, Support, Billing, and more. Supports querying, creating, modifying, deleting resources, monitoring, debugging, and cost analysis. Triggers on requests mentioning AWS, cloud resources, or specific AWS service names.
bugcrowd-reporting
elementalsouls/claude-bughunter
Bugcrowd-specific reporting tactics complementing report-writing: VRT category search-and-fallback strategy when no exact match exists, manual severity override when VRT defaults underrate impact, severity-request paragraph as first body section, OOS-clause rebuttal templates (rate limiting on auth-flow endpoints, debug-info framing, user-enumeration with sensitive PII, theoretical-issue counter), chained-finding cross-reference patterns, target selection for QA-vs-prod programs, researcher-side hygiene (Bugcrowdninja email alias, account state restoration, friendly-tester posture). Use when filing a Bugcrowd submission, when VRT default seems wrong, when triager closes as OOS or downgrades severity, when chaining linked submissions, or when scope distinguishes production from QA. Pairs with report-writing and triage-validation.
debug-systematic
travisjneuman/.claude
Systematic 4-phase debugging methodology for complex, intermittent, or mysterious issues. Use when investigating bugs, race conditions, or unexplained failures.
debug
gracefullight/stock-checker
Structured bug diagnosis and fix — Root cause analysis, pattern scanning, regression tests
cuda-debugging
mohitmishra786/low-level-dev-skills
CUDA debugging skill for GPU program correctness. Use when debugging with cuda-gdb, running NVIDIA Compute Sanitizer memcheck/racecheck, analyzing GPU core dumps, or interpreting CUDA error codes 700/702. Activates on queries about cuda-gdb, compute-sanitizer, illegal memory access, launch timeout, or device printf.
hip-rocm
mohitmishra786/low-level-dev-skills
HIP and ROCm skill for AMD GPU programming. Use when writing HIP kernels with hipcc, porting CUDA code via HIPIFY, profiling with rocprof, debugging with rocgdb, or optimizing for MI300X. Activates on queries about HIP, ROCm, hipify, hipcc, rocprof, or CUDA to AMD porting.
debugging
siviter-xyz/dot-agent
Root cause analysis and debugging protocols. Use when encountering errors, test failures, unexpected behavior, stack traces, or when code behaves differently than expected.
mpi
mohitmishra786/low-level-dev-skills
MPI skill for distributed-memory parallel programming. Use when writing MPI_Send/Recv programs, collective operations, non-blocking communication, MPI+OpenMP hybrid, or debugging with mpirun. Activates on queries about MPI_Init, MPI_Allreduce, MPI_Isend, mpirun, MPI-IO, or MPI performance.
python-development
community-access/accessibility-agents
Python and wxPython development reference patterns, common pitfalls, framework-specific guides, desktop accessibility APIs, and cross-platform considerations. Use when building, debugging, packaging, or reviewing Python desktop applications.
rag-eval
glebis/claude-skills
Iterate on RAG systems with structured evals instead of eyeballing. This skill should be used when the user is tuning a RAG pipeline — changing retrieval prompts, swapping models, adjusting chunking, or debugging poor answers — and wants a cheap, ranked set of experiments with cost tracking and structured feedback on the stack. Also use when the user asks "how do I know if my RAG is working?", "this RAG eval is burning money", or "what should I try next on retrieval?".
hz-perfetto-debug
meta-quest/agentic-tools
Analyzes Meta Quest and Horizon OS VR performance using Perfetto traces — frame timing, CPU/GPU bottlenecks, render pass analysis. Use when profiling frame drops, jank, or thermal issues on Quest devices.
hz-vr-debug
meta-quest/agentic-tools
Debugs Meta Quest and Horizon OS VR/MR applications using the metavr CLI — view logs, capture screenshots, diagnose common issues. Use when troubleshooting crashes, errors, or unexpected behavior on Quest devices.
tailwind
chanjing-ai/framevideo
Tailwind CSS v4.2 browser-runtime patterns for FrameVideo compositions. Use when scaffolding or editing projects created with `framevideo init --tailwind`, writing Tailwind utility classes in composition HTML, adding CSS-first Tailwind v4 theme tokens, debugging v3 vs v4 syntax, or deciding when to compile Tailwind to CSS instead of using the browser runtime.
renderer
dzhng/skills
Build, debug, or review WebGPU renderer work — three.js/TSL scene layers, node materials, or raw WGSL passes and compute. Use when changing GPU resource layouts, render or compute passes, node materials, bind groups, buffers, shaders, frame orchestration, depth/overlay composition, capability handling, performance, or browser-verified renderer visuals.
dotnet-debugging
novotnyllc/dotnet-artisan
Debugs Windows and Linux/macOS applications (native, .NET/CLR, mixed-mode) with WinDbg MCP (crash dumps, !analyze, !syncblk, !dlk, !runaway, !dumpheap, !gcroot, BSOD), dotnet-dump, lldb with SOS, createdump, and container diagnostics (Docker, Kubernetes). Hang/deadlock diagnosis, high CPU triage, memory leak investigation, kernel debugging, and dotnet-monitor for production. Spans 17 topic areas. Do not use for routine .NET SDK profiling, benchmark design, or CI test debugging.
detecting-oauth-token-theft
mukul975/anthropic-cybersecurity-skills
Detect and respond to OAuth token theft and replay in Microsoft Entra ID (Azure AD), covering access token theft, refresh token replay, Primary Refresh Token (PRT) abuse, pass-the-cookie attacks, and Token Protection conditional access policies. Use for impossible-travel or anomalous token-usage alerts, suspected session hijacking, sign-in log analysis, or configuring token-binding defenses in Azure/M365.
tauri-mobile
full-stack-skills/tauri-skills
Guidance for Tauri v2 mobile development setup, debugging, and bundle identifiers.
reka-ui-skilld
skilld-dev/vue-ecosystem-skills
Vue port for Radix UI Primitives. ALWAYS use when writing code importing \"reka-ui\". Consult for debugging, best practices, or modifying reka-ui, reka ui.
shadcn
laguagu/claude-code-nextjs-skills
Manages shadcn components and projects — adding, searching, fixing, debugging, styling, and composing UI. Provides project context, component docs, and usage examples. Applies when working with shadcn/ui, component registries, presets, --preset codes, or any project with a components.json file. Also triggers for "shadcn init", "create an app with --preset", or "switch to --preset".
global-agent-guardrails
davidondrej/skills
One shared denylist of catastrophic shell commands (rm -rf on / or ~, dd/mkfs, sudo rm, fork bombs, curl|sh, git push --force, gh repo delete) enforced as a PreToolUse/pre-exec guard across every AI coding agent on the machine — Cursor, Claude Code, Codex, OpenCode, Pi, Hermes, Grok, Droid, Devin. Use when adding or tuning blocked-command patterns, wiring the guard into a new agent or a new machine, debugging why a command was (or was not) blocked, or when the user mentions command guard, guardrails, dangerous command hook, or PreToolUse safety.
mcloud-deployments
medusajs/medusa-agent-skills
Execute mcloud deployments commands to list deployments, retrieve deployment details, and fetch build logs. Use when listing deployments, checking deployment status, or reading build output for debugging build failures.
wp-interactivity-api
automattic/agent-skills
Use when building or debugging WordPress Interactivity API features (data-wp-* directives, @wordpress/interactivity store/state/actions, block viewScriptModule integration, wp_interactivity_*()) including performance, hydration, and directive behavior.
deno
denoland/skills
Use when writing, running, configuring, reviewing, or debugging code in a Deno project, or when scaffolding a new one. Covers dependency management with deno install and deno add, package.json and node_modules support, npm and JSR packages, permissions, where configuration belongs across package.json, tsconfig.json and deno.json, workspaces, the built-in toolchain (fmt, lint, test, check, bench, compile), and publishing.
meilisearch-admin
civitai/civitai
Check Meilisearch index status, tasks, health, and settings. Use for debugging search issues, monitoring indexing tasks, and inspecting index configuration. Read-only admin operations.
technical-advisory
404kidwiz/claude-supercode-skills
Expert technical advisor with deep reasoning for architecture decisions, code analysis, and engineering guidance. Masters complex tradeoffs, system design, security architecture, performance optimization, and engineering best practices. Use when making critical architecture decisions, after implementing significant work, when debugging complex issues, encountering unfamiliar patterns, facing security/performance concerns, or evaluating multi-system tradeoffs. Provides comprehensive analysis with clear recommendations and rationale.
doca-debug
nvidia/skills
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langfuse
avivsinai/langfuse-mcp
Debug AI agents and LLM applications via Langfuse MCP. Use when investigating traces, exceptions, slow generations, sessions, prompt versions, datasets, or evaluation sets. Triggers on "langfuse", "traces", "debug AI", "find exceptions", "what went wrong", "why is it slow", "datasets", "evaluation sets".
wp-playground
automattic/agent-skills
Use for WordPress Playground workflows: fast disposable WP instances in the browser or locally via @wp-playground/cli (server, run-blueprint, build-snapshot), auto-mounting plugins/themes, switching WP/PHP versions, blueprints, and debugging (Xdebug).
audit-xls
anthropics/financial-services
Audit a spreadsheet for formula accuracy, errors, and common mistakes. Scopes to a selected range, a single sheet, or the entire model (including financial-model integrity checks like BS balance, cash tie-out, and logic sanity). Triggers on "audit this sheet", "check my formulas", "find formula errors", "QA this spreadsheet", "sanity check this", "debug model", "model check", "model won't balance", "something's off in my model", "model review".
openrouter-analytics-query
openrouterteam/skills
Construct and execute analytics queries against the OpenRouter API — full parameter reference for metrics, dimensions, filters, time ranges, ordering, and pagination. Use when building or debugging an analytics query, understanding the request/response shape, or handling query errors.
typo3-content-blocks
dirnbauer/webconsulting-skills
Guides TYPO3 Content Blocks modeling for Content Elements, Record Types, Page Types, and File Types as the single source of truth. Use when creating, migrating, auditing, or debugging Content Blocks config.yaml files, make:content-block output, content elements, record types, page types, file types, collections, IRRE, labels, previews, or friendsoftypo3/content-blocks behavior.
typescript-patterns
oakoss/agent-skills
Advanced TypeScript patterns for strict mode development. Covers type utilities (Pick, Omit, Partial, Record, Awaited), generics with constraints and inference, type guards and narrowing, discriminated unions, conditional and mapped types, template literal types, const assertions, satisfies operator, module patterns, and modern JavaScript idioms (eslint-plugin-unicorn). Use when building type-safe APIs, preventing runtime errors through types, working with strict TypeScript configuration, debugging complex type errors, or enforcing modern JS idioms. Use for generics, type guards, utility types, strict mode, type inference, narrowing, type safety, const assertions, satisfies, module augmentation, unicorn, for-of, modern-js.
kubernetes
rightnow-ai/openfang
Kubernetes operations expert for kubectl, pods, deployments, and debugging
playwright-automation-expert
jmr85/e2e-agent-skills
Use when writing E2E tests with Playwright, setting up test infrastructure, debugging flaky browser tests, organizing project structure, or testing REST APIs. Invoke for browser automation, E2E tests, Page Object Model, test flakiness, visual testing, project scaffolding, folder layout, API testing, JSON schema validation.
combine-code-review
existential-birds/beagle
Reviews Combine framework code for memory leaks, operator misuse, and error handling. Use when reviewing code with import Combine, AnyPublisher, @Published, PassthroughSubject, or CurrentValueSubject.
azure-import-export
microsoftdocs/agent-skills
Expert knowledge for Azure Import Export development including troubleshooting, limits & quotas, and security. Use when setting CMK via Key Vault, checking drive limits, validating prerequisites, or debugging Import/Export job failures, and other Azure Import Export related development tasks. Not for Azure Data Box (use azure-data-box-family), Azure Blob Storage (use azure-blob-storage), Azure Files (use azure-files).
write-tests
dzhng/skills
Write tests that pin real behavior instead of implementation details, config values, or lucky samples. Use when adding tests for new behavior, writing a regression test, fixing a brittle or flaky test, reviewing a test diff, or when a test breaks after a refactor or config change that didn't change behavior.
android
hyperb1iss/hyperdroid-skill
Use when working with Android devices via ADB - connecting devices, running shell commands, installing apps, debugging, taking screenshots, UI automation, viewing logs, analyzing crashes, or exploring system internals. Triggers on "adb", "logcat", "install apk", "debug android", "android device", "shell command", "screenshot", "dumpsys", "crash", "ANR".
reflex-dev
silvainfm/claude-skills
Guide for building full-stack web applications using Reflex, a Python framework that compiles to React frontend and FastAPI backend. Use when creating, modifying, or debugging Reflex apps - covers state management, event handlers, components, routing, styling, and data integration patterns.
codex-goals
pproenca/dot-skills
Patterns and anti-patterns for using OpenAI Codex Goals — the persistent objectives feature introduced in Codex 0.128.0. Use this skill whenever writing, reviewing, or debugging a `/goal` invocation, deciding whether a task should be a Goal at all, drafting a research Goal that needs an evidence ledger, or diagnosing a Goal that completed against the wrong surface. Triggers on `/goal`, "Codex Goal", "Codex goals", "persistent objective", "evidence-based completion", "iteration policy", "blocked stop condition", or any user message describing a multi-turn Codex task with a defined finish line. Trigger even if the user doesn't explicitly mention Goals — if they're typing "/goal" or asking Codex to "keep going until X", this skill applies.
context7
julianobarbosa/claude-code-skills
Up-to-date, version-specific library documentation and working code examples sourced from real project repos via the Context7 documentation aggregation API — covers 1000+ libraries (React, Next.js, Vue, Kubernetes, Go, Python, TypeScript, Prisma, Tailwind, and more). USE WHEN looking up API signatures, framework docs, version-specific behavior, code examples, library configuration, migration guides, OR before writing code against a library you might be guessing about. NOT FOR refactoring existing code, debugging business logic, general programming concepts, or libraries Context7 doesn't index (use web search instead). Grounds answers in real source documentation to prevent hallucinated APIs.
debugger
404kidwiz/claude-supercode-skills
Expert at advanced debugging and root cause analysis. Use when troubleshooting complex issues, finding root causes of bugs, investigating performance problems, or analyzing system failures.
trellis-update-spec
mindfold-ai/trellis
Captures executable contracts and coding conventions into .trellis/spec/ documents. Use when learning something valuable from debugging, implementing, or discussion that should be preserved for future sessions.
execute-mule-run-config
mulesoft/mulesoft-dx
Call use_skill as your FIRST and ONLY action when the user asks to RUN, START, or DEBUG a Mule application. This includes executing applications in run mode OR debug mode. Trigger phrases include "run my project", "run all projects", "debug my project", "debug all my projects", "start the app", "run <project-name>", "debug <project-name>". When you call use_skill, it must be the only tool call in that response.