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
Free · No signup · No trial clock
SEE THE DIRECTORY
sentry-fix-stack-traces
getsentry/sentry-for-ai
Make Sentry stack traces readable — upload source maps for JavaScript/TypeScript, or debug files for native and mobile (dSYM, ProGuard/R8, NDK symbols, Dart obfuscation maps, .NET PDBs). Use when frames in Sentry show minified names, bundled paths, hex addresses, "unknown", or method names with no file/line, instead of your original source.
godot
bfollington/terma
This skill should be used when working on Godot Engine projects. It provides specialized knowledge of Godot's file formats (.gd, .tscn, .tres), architecture patterns (component-based, signal-driven, resource-based), common pitfalls, validation tools, code templates, and CLI workflows. The `godot` command is available for running the game, validating scripts, importing resources, and exporting builds. Use this skill for tasks involving Godot game development, debugging scene/resource files, implementing game systems, or creating new Godot components.
kubectl
oldwinter/skills
This skill should be used when users need to interact with Kubernetes clusters via kubectl CLI. It covers pod management, deployment operations, log viewing, debugging, resource monitoring, scaling, ConfigMaps, Secrets, Services, and all standard kubectl operations. Supports multiple clusters (production, staging, local k3s) with predefined aliases. Triggers on requests mentioning Kubernetes, k8s, pods, deployments, containers, or cluster operations.
ibkr-api-skill
scientiacapital/skills
Interactive Brokers (IBKR) API integration for portfolio management, account queries, and trade execution across multiple account types (Roth IRA, personal brokerage, business). Use when the user mentions IBKR, Interactive Brokers, IB Gateway, TWS API, Client Portal API, brokerage API, portfolio positions, account balances, placing trades via API, multi-account trading, IRA trading restrictions, or wants to build/debug code that connects to Interactive Brokers. Also triggers on "ib_async", "ib_insync", "ibapi", or any IBKR endpoint reference.
python-async
athola/claude-night-market
Async Python patterns via asyncio and aiohttp for I/O-bound concurrency. Use when adding async APIs, handling concurrent I/O, or debugging async code.
wp-rest-api
automattic/agent-skills
Use when building, extending, or debugging WordPress REST API endpoints/routes: register_rest_route, WP_REST_Controller/controller classes, schema/argument validation, permission_callback/authentication, response shaping, register_rest_field/register_meta, or exposing CPTs/taxonomies via show_in_rest.
backend-principle-eng-cpp-pro-max
praxstack/skills-and-personas
Principal backend engineering intelligence for C++ systems and performance-critical services. Actions: plan, design, build, implement, review, fix, optimize, refactor, debug, secure, scale backend code and architectures. Focus: correctness, memory safety, latency, reliability, observability, scalability, operability.
hunt-laravel
elementalsouls/claude-bughunter
Hunt Laravel specific vulnerabilities — Debug mode leakage (APP_DEBUG=true exposes full stack trace + env vars), Laravel Telescope/Horizon dashboard unauthorized access, Ignition RCE (CVE-2021-3129), Signed URL manipulation, Queue Worker abuse, mass assignment via Eloquent, deserialization via cookies, .env file exposure. Use when target runs Laravel (PHP) — detected via X-Powered-By, Laravel session cookies, or /storage/ paths.
bitrix-caching
bxmaximum/bitrix-framework-skills
Covers caching in Bitrix — Cache (unmanaged), ManagedCache, TaggedCache, ORM auto-cache, component cache via startResultCache/endResultCache, Composite Site, cache engine configuration (files, memcached, redis) in .settings.php. Applied when optimizing performance, invalidating by tags and events, setting TTL, cache warm-up, and debugging cache hits. Key terms — cache, invalidate, TaggedCache, ManagedCache, startResultCache, cacheDir, clean.
cavekit-validation-first
juliusbrussee/caveman-code
Validation-first design for Cavekit — every kit requirement must be automatically verifiable. Six-gate validation pipeline, phase gates, merge protocol, completion signals, acceptance criteria patterns. Use when designing acceptance criteria, wiring CI gates, or debugging why an agent is producing output that nobody can verify.
gilfoyle
axiomhq/gilfoyle
SRE agent that does what you can't. Queries your observability stack. Finds root causes. Doesn't panic. Doesn't guess. Doesn't care about your feelings. Use for incident response, debugging, root cause analysis, or log analysis.
syncause-debugger
syncause/debug-skill
Diagnose and fix bugs using runtime execution traces. Use when debugging errors, analyzing failures, or finding root causes in Python, Node.js, or Java applications.
error-detective
404kidwiz/claude-supercode-skills
Use when user needs complex error pattern analysis, distributed system debugging, error correlation, root cause discovery, or predictive error prevention across microservices.
debugging
dralgorhythm/claude-agentic-framework
Troubleshoot and fix bugs systematically. Use when errors occur, tests fail, or unexpected behavior is observed. Covers root cause analysis and debugging strategies.
bitrix-logger
bxmaximum/bitrix-framework-skills
Covers PSR-3 logging in Bitrix — Bitrix\Main\Diag\Logger, FileLogger, SysLogger, NullLogger, LogFormatter, loggers section in .settings.php, named kernel loggers (main.Default, main.HttpClient, main.GeoIpManager, main.EventLog.*), integration with Monolog and third-party PSR-3 loggers. Applied when configuring module logs, debugging integrations, gathering errors from specific kernel components and log rotation. Key terms — Logger, FileLogger, SysLogger, LogFormatter, PSR-3, Monolog, loggers config, log level.
error-patterns
athola/claude-night-market
Provides error classification, recovery, and graceful-degradation patterns. Use when implementing error handling or debugging resilience failures in any skill.
laravel:debugging-prompts
jpcaparas/superpowers-laravel
Create effective debugging prompts—include error messages, stack traces, expected vs actual behavior, logs, and attempted solutions
python-debugger
majesticlabs-dev/majestic-marketplace
Debug Python errors, exceptions, and unexpected behavior. Analyzes tracebacks, reproduces issues, identifies root causes, and provides fixes.
boy-scout
ertugrul-dmr/clean-code-skills
Use when fixing, editing, changing, debugging, or working with any Python code. Applies the Boy Scout Rule—always leave code cleaner than you found it. Orchestrates other clean code skills as needed.
formatter-development
biomejs/biome
Guide for implementing formatting rules using Biome's IR-based formatter infrastructure. Use when implementing formatting for new syntax nodes, handling comments in formatted output, writing or debugging formatter snapshot tests, diagnosing idempotency failures, or comparing Biome's formatting against Prettier for JavaScript, CSS, JSON, HTML, Markdown, or other languages.
reasoning-trace-optimizer
muratcankoylan/agent-skills-for-context-engineering
Debug and optimize AI agents by analyzing reasoning traces, context degradation, tool confusion, instruction drift, repeated task failures, and performance regressions.
slack-mrkdwn
ccheney/robust-skills
Proactively apply when generating any Slack text content, message text fields, Block Kit text objects, standard Markdown for Slack, or Work Object text. Triggers on mrkdwn, Slack formatting, Slack markdown, Slack bold, Slack italic, Slack links, mentions, dates, escaping, text objects, verbatim, plain_text, markdown blocks, markdown_text, rich_text, Work Objects, streaming text, notification fallbacks, accessibility, auto-parsing, parse, link_names, unfurls, and mrkdwn_in. Use when formatting Slack messages, composing text objects, escaping user content, choosing between mrkdwn and standard Markdown, adding mentions or localized dates, streaming Markdown, authoring Work Object fields or comments, or debugging Slack text rendering.
fw-app-dev
freshworks-developers/fw-dev-tools
Expert-level skill for building, debugging, reviewing, and migrating Freshworks Platform 3.0 marketplace apps. REQUIRES Node.js 24.x + FDK 10.x. New UI apps default to React Meta (DEW, metaConfig.framework react); vanilla Crayons is opt-in. Commands: /fdk-react-create, /fdk-react-migrate, /fdk-fix, /fdk-migrate, /fdk-refactor. Does NOT install FDK/Node—use fw-setup.
android-debugging
rcosteira79/android-skills
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kubectl-debugging
laurigates/claude-plugins
Debug K8s pods/nodes with kubectl debug — ephemeral containers, pod copying, debug profiles, interactive sessions. Use when the user mentions kubectl debug or debugging pods.
python-anti-patterns
julianobarbosa/claude-code-skills
Common Python anti-patterns to avoid. Use as a checklist when reviewing code, before finalizing implementations, or when debugging issues that might stem from known bad practices.
css
jaredlander/freshbooks-speed
Expert-level CSS development with modern features and best practices. Use when asked to (1) write or debug CSS, (2) implement layouts with flexbox, grid, or container queries, (3) create animations and transitions, (4) optimize CSS performance, (5) work with CSS preprocessors or CSS-in-JS, (6) implement responsive design, or when phrases like "style", "CSS", "stylesheet", "design", "layout", "animation" appear.
discover-debugging
rand/cc-polymath
Automatically discover debugging and profiling skills when working with GDB, LLDB, breakpoints, profiling, stack traces, memory leaks, core dumps, or performance profiling. Activates for debugging development tasks.
tanstack-devtools
oakoss/agent-skills
TanStack DevTools for debugging Query, Router, and Form state in React apps. Use when setting up devtools, debugging cache state, or inspecting route trees. Use for devtools, react-query-devtools, router-devtools, form-devtools, debug, inspect, cache-viewer.
esp32-rust-embedded
psytraxx/esp32-homecontrol-no-std-rs
Expert embedded Rust development for ESP32 microcontrollers using no-std, Embassy async framework, and the ESP-RS ecosystem (esp-hal, esp-rtos, esp-radio). Use when building, debugging, flashing, or adding features to ESP32 projects. Covers sensor integration (ADC, GPIO, I2C, SPI), power management (deep sleep, RTC memory), WiFi networking, MQTT clients, display drivers, async task patterns, memory allocation, error handling, and dependency management. Ideal for LilyGO boards, Espressif chips (ESP32, ESP32-S3, ESP32-C3), and any no-std Xtensa/RISC-V embedded development.
qcsd-cicd-swarm
proffesor-for-testing/agentic-qe
Use when enforcing CI/CD quality gates before release, running regression analysis, detecting flaky tests, or assessing deployment readiness in the QCSD Verification phase.
sentry
rightnow-ai/openfang
Sentry error tracking and debugging specialist
gcloud-usage
fcakyon/claude-codex-settings
This skill should be used when user asks about "GCloud logs", "Cloud Logging queries", "Google Cloud metrics", "GCP observability", "trace analysis", or "debugging production issues on GCP".
r3f-performance
bbeierle12/skill-mcp-claude
R3F performance optimization—LOD (Level of Detail), frustum culling, instancing strategies, draw call reduction, frame budgets, lazy loading, and profiling tools. Use when optimizing render performance, handling large scenes, or debugging frame rate issues.
ha-automation
nodnarbnitram/claude-code-extensions
Create and debug Home Assistant automations, scripts, blueprints, and Jinja2 templates. Use when working with triggers, conditions, actions, automation YAML, scripts, blueprints, or template expressions. Activates on keywords: automation, trigger, condition, action, blueprint, script, template, jinja2.
duoduo-runtime-admin
openduo/duoduo
Manage host-mode duoduo daemon-level settings, diagnostics, and the `duoduo session` CLI. Use for: daemon status/config/logs and running-daemon diagnostics; Claude/Codex/Grok runtime setup (codex auto-detected since v0.5.3: install codex + `codex login`; grok auto-detected: install grok + `grok login`) and default runtime (ALADUO_DEFAULT_RUNTIME); Codex sandbox (ALADUO_CODEX_SANDBOX); log level (ALADUO_LOG_LEVEL); telemetry persistence; cadence interval; other ALADUO_* keys in ~/.config/duoduo/.env; refreshing subconscious partition prompts from a published tag; archiving/pruning the usage ledger (var/usage); model profiles for third-party models (`duoduo session config … profile set/unset/get`, global/kind/instance layers): context-window caps, per-model endpoint routing (base_url + credentials via stdin entry), subagent tier aliases (opus/sonnet/haiku/fable remapping, `profile alias set`), CLAUDE_CODE_MAX_CONTEXT_TOKENS, context-profile rebuild acknowledgements from /model, \"profiles not working\" troubleshooting; codex tool-surface trimming (~/.codex/config.toml gates: apps connector catalog, goals, request_user_input). Session management: list/inspect sessions, name a session (alias), wake/notify another session by name or key (cross-session orchestration), archive a session. Chinese triggers: 启用 codex runtime, 启用 grok runtime, 设置默认 runtime, 打开 debug log, 关闭 telemetry, 调 cadence 频率, 查 daemon 配置/日志, 刷新潜意识, 清理 usage, 给会话起名, 列出会话, 唤醒/通知 session, 归档会话, 跨会话编排, 配置模型上下文窗口, 模型 profile, 外部模型窗口, codex 工具太多/裁剪 codex 工具. Does NOT handle channel-kind settings (Feishu/WeChat/ACP) — those live in duoduo-channel-admin.
chain-patterns
yonatangross/orchestkit
Chain patterns for multi-phase pipelines: MCP detection, handoff files, checkpoint-resume, worktree agents, CronCreate monitoring. Use when building or debugging a pipeline skill.
android-to-harmonyos-migration-workflow
openharmonyinsight/openharmony-skills
多 agent 协作的 Android 到 HarmonyOS 代码迁移工作流（迭代式）。当用户需要将 Android 项目迁移到 HarmonyOS 时触发，提供：1) Analyzer Agent 扫描代码结构 2) Planner Agent 制定迁移计划 3) Translator Agent 执行代码转换 4) **Validator Agent（验证代理）** 使用 **ohos-app-build-debug** skill 进行编译验证、应用打包和上板验证首界面 5) Tester Agent 验证功能（每个模块迁移完成后执行） 6) 所有模块迁移完成后，执行 Feature Comparator Agent 检查遗漏功能 7) UI Comparator Agent 验证界面一致性 8) 将未完成部分反馈给 Planner Agent 继续迭代。包含代码分析脚本、API映射表、组件转换模式和自动化验证工具。触发关键词：迁移Android到鸿蒙、Android迁移、HarmonyOS迁移、Java/Kotlin转ArkTS、Activity转Page、功能比对、UI比对。
unity-test-runner
dev-gom/claude-code-marketplace
Execute and analyze Unity Test Framework tests from the command line. This skill automates test execution for Unity projects by detecting the Unity Editor, configuring test parameters (EditMode/PlayMode), running tests via CLI, parsing XML results, and generating detailed failure reports. Use this when running Unity tests, validating game logic, or debugging test failures.
godot-debugging
jame581/godotprompter
Use when debugging Godot projects — remote debugger, print techniques, signal tracing, common error patterns and fixes
fw-ai-actions-app
freshworks-developers/fw-dev-tools
Expert-level skill for AI Actions and integrations on Freshworks Platform 3.0. Use when (1) Creating actions.json and SMI functions (flat request, nested response), (2) Request templates and third-party API integration, (3) Pre-build validation (pricing, paywalls, account prerequisites), (4) Failure-case validation and test data guardrails, (5) Debugging broken endpoints, (6) Integration implementation checklist (auth, base URL, request body, trigger-friendly schema), (7) Scoping and planning new integrations (and comparing only when user asks).
gm
anentrypoint/gm
The primary driver for every coding, refactoring, debugging, or engineering task -- used for the whole task.
ci-integration
jwilger/agent-skills
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css-animations
editframe/skills
CSS animation fill-mode requirements for Editframe timeline system. Use when creating CSS animations, debugging flashing/flickering issues, or when user mentions animation problems, fade effects, slide effects, or sequential animations.
b2c-site-import-export
salesforcecommercecloud/b2c-developer-tooling
Import and export site archives containing metadata XML on B2C Commerce instances using the b2c CLI. Use this skill whenever the user needs to import a site archive directory or zip to an instance, apply an ordered set of archives idempotently, export site configuration as XML, structure a site archive folder (sites/site_template/meta/), write or debug metadata XML files (system-objecttype-extensions.xml, custom-objecttype-definitions.xml, preferences.xml), or push custom attributes, custom object types, or site preferences to a sandbox via site import. Also use when an import job fails with schema validation errors — even if they just say "push metadata to the sandbox" or "import my XML files".
cxas-agent-foundry
googlecloudplatform/cxas-scrapi
End-to-end GECX/CXAS/CES conversational agent lifecycle -- build agents from requirements (PRD-to-agent), create and run evals (goldens, simulations, tool tests, callback tests), debug failures, and iterate to production quality. Use this skill whenever the user mentions GECX, CXAS, CES, SCRAPI, conversational agents, voice agents, audio agents, agent evals, pushing/pulling/linting agents, or agent instructions/callbacks/tools on the Google Customer Engagement Suite platform.
andrej-karpathy-skill
duolahypercho/andrej-karpathy-skills
Apply Andrej Karpathy-inspired coding-agent guidelines in Codex. Use when writing, reviewing, debugging, or refactoring code to surface assumptions, avoid overengineering, keep edits surgical, and define verifiable success criteria.
laravel-systematic-debugging
iserter/laravel-claude-agents
Systematic debugging process for Laravel applications - ensures root cause investigation before attempting fixes. Use for any Laravel issue (test failures, bugs, unexpected behavior, performance problems).
superplane-monitor
superplanehq/skills
Monitor and debug SuperPlane workflow executions. Inspect runs, diagnose failures, and manage execution queues. Use when a workflow fails, an execution is stuck, or the user wants to check run status. Triggers on "debug", "failed", "failure", "execution", "output channel", "passed but failed", "run status", "stuck", "queue", "troubleshoot".
midnight-cryptography
kali-decoder/midnight-skills
Cryptographic primitives used by the Midnight node — Blake2-256 hashing, sr25519/ECDSA/Ed25519 signatures, twoxhash storage keys, and how they map to consensus, P2P, and state. Use when debugging node crypto, signature verification, or hash function choices.
midnight-p2p-networking
kali-decoder/midnight-skills
Midnight P2P networking — Polkadot SDK libp2p, peer discovery (bootstrap, mDNS, Kademlia DHT), transport (TCP/WebSocket/DNS), Noise encryption, Yamux multiplexing, and substream protocols. Use when configuring nodes, debugging connectivity, or explaining how validators exchange blocks and gossip.
systematic-debugging-laravel
iserter/laravel-claude-agents
Systematic debugging process for Laravel applications - ensures root cause investigation before attempting fixes. Use for any Laravel issue (test failures, bugs, unexpected behavior, performance problems).
kafka-streams-programming
confluentinc/agent-skills
Architect, build, and debug Kafka Streams apps (JVM-embedded stream processing). Use when user mentions KStream, KTable, topology, TopologyTestDriver, StreamsBuilder, interactive queries, GlobalKTable, joins/windows/aggregations, or debugging issues (rebalancing, state stores, lag, deserialization errors). Also use when user wants to optimize Kafka Streams for WarpStream or tune Kafka Streams client configuration for WarpStream. Do NOT trigger for Flink, connectors, CDC, or plain producer/consumer.
roblox-testing
nonlooped/roblox-suite
Testing, debugging, and profiling Roblox experiences — Developer Console, Output, logging discipline, pcall and assertion patterns, TestEZ unit tests, the MicroProfiler (client and server), Scene Analysis, Script Profiler, memory diagnostics, network debugging, Luau type checking, and connection cleanup. Use when something is broken, slow, or unreliable, or when setting up test workflows.
trellis-session-insight
mindfold-ai/trellis
Reach into past AI conversation history through the `trellis mem` CLI. Use whenever the user asks 'how did we solve X last time', 'have we discussed this before', 'what was the decision on X', 'remind me what we did in this task', '上次怎么解的', '之前讨论过吗', '想起一段对话', or when starting a brainstorm that overlaps prior work, debugging a familiar bug, continuing a task across sessions, or doing a finish-work review. Returns raw past dialogue; decide for the moment whether to update spec, append to task notes, quote inline in the answer, or just internalize.
webpack-plugin-recipes
pproenca/dot-skills
Use whenever you face a webpack-build problem that ends with needing to write a plugin — 26 production-shaped recipes covering bundle-size budgets, forbidden architectural imports, env-var validation, secret-leak prevention, build-info injection, asset manifests, license walking, SRI hashes, virtual modules (Vite-style), filesystem routing (Next.js-style), generated barrels, runtime-driven TS types, library replacement (react→preact), debug-stripping, conditional polyfills, dynamic banners, feature flags, build-duration regression tracking, desktop/Slack notifications, changed-chunks diffing, browser auto-open, gzip/brotli pre-compression, image optimization, type-based dist layout, empty-chunk cleanup, cache-busting query strings. Each recipe is a complete working plugin drawn from production patterns at Next.js, Storybook, webpack-contrib. Trigger when the user asks how to do X with webpack or whether a plugin exists for X. Companion to webpack-plugin-authoring.
hermes-s6-container-supervision
nousresearch/hermes-agent
Modify or debug s6 services in the Hermes Docker image.
debugging-with-opensrc
blogic-cz/blogic-marketplace
Load this skill when debugging behavior in external libraries by reading local OpenSrc mirrors (Effect, TanStack, TRPC, Drizzle, Better Auth, Sentry, Pino), or when docs conflict with runtime behavior and source-level verification is required.
messaging-api
abgne/line-dev
Comprehensive reference for LINE Messaging API — webhook setup, message sending, Flex Message design, Rich Menu management, audience targeting, insights, coupons, and channel access tokens. This skill should be used when the user asks to "build a LINE Bot", "set up a webhook", "send a push message", "design a Flex Message", "create a Rich Menu", "manage audience targeting", "get messaging insights", "create a coupon campaign", "debug webhook signature verification", or mentions LINE Messaging API, LINE OA chatbot, reply/push/multicast/narrowcast/broadcast, Flex Message JSON, Rich Menu, group chat bot, channel access token, or URL schemes. Always use this skill whenever the user mentions LINE bots, chatbots, LINE OA, or any messaging-related LINE integration, even if they don't explicitly say "Messaging API".
spree-api-v3
spree/agent-skills
Use when the user is integrating with Spree's v3 REST API — making requests as a customer, building an admin app, writing webhook consumers, debugging auth errors, parsing API responses. Distinguishes the Store API (customer-facing) from the Admin API (back-office). Common phrasings include "Spree API", "Store API", "Admin API", "publishable key", "secret key", "X-Spree-Api-Key", "API scopes", "prefixed IDs in API", "expand", "API pagination", "Spree 401", "Spree 403", "{data, meta} envelope", "v3 endpoint". For ADDING a new resource to the API, use the spree-resource skill instead.