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
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sentry-analysis
preetamnath/agent-skills
Diagnose the root cause of a Sentry issue from its error logs, breadcrumbs, and codebase context. TRIGGER when: user shares a Sentry issue, error, or link and asks why it happens or how to fix it; user says 'analyze this Sentry error', 'find the root cause', 'debug this stack trace'.
rest-graphql-debug
nousresearch/hermes-agent
Debug REST/GraphQL APIs: status codes, auth, schemas, repro.
builder
dralgorhythm/claude-agentic-framework
Translate plans into working, tested code through implementation, debugging, and refactoring — a user-invoked Builder workflow.
docker-debugging
incidentfox/incidentfox
Docker container debugging and management. Use when investigating container issues, checking logs, resource usage, or Docker Compose services.
ddev-magento
chuccv/ddev-skill
Use when setting up, managing, or troubleshooting a Magento 2 project on DDEV — covers fresh install, service configuration (Redis, OpenSearch, RabbitMQ, Varnish), multi-store, Xdebug, magerun2, and common dev workflows.
tailwind
frankxai/claude-skills-library
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.
serve-sim
expo/serve-sim
Control and stream a running iOS, iPad, or Apple Watch Simulator with npx @expo/serve-sim. Use for simulator preview, taps, gestures, hardware buttons, rotation, camera injection, permissions, accessibility, and CoreAnimation debug.
orgn-observe-debug
oxyz-official/skills
Pull production observability context from the Orgn Observe MCP to ground debugging, incident response, and 'how is this behaving in prod right now?' questions. Triggers whenever the user is investigating a bug, regression, or incident; asking about real traffic, error rates, latency, or throughput; validating a deploy; or wants the recent history of a service.
building-swift-apps
wdm0006/python-skills
Builds, tests, and ships native Swift/SwiftUI apps for Apple platforms (macOS/iOS) reliably in CI and locally — unsigned CI builds, the hand-maintained pbxproj, SwiftPM-module vs app-target test boundaries, SourceKit false positives, gitignored base xcconfig, Keychain vs UserDefaults for secrets (OAuth state/PKCE), CloudKit/SwiftData constraints, and deterministic date/RNG handling. Use when wiring CI for an Xcode project, debugging "requires a provisioning profile" / "no testable scheme" / "cannot find type in scope", adding a Swift file to a target, wiring OAuth sign-in, or reviewing a Swift app.
building-scala-projects
wdm0006/python-skills
Sets up, tests, and publishes Scala projects — sbt build layout, scalafmt/scalafix as CI gates, Scala 2-vs-3 and cross-building, a test job that actually runs, and Maven Central publishing via sbt-ci-release. Use when creating an sbt project, wiring GitHub Actions for Scala, debugging a cross-build or scalafmt CI failure, or preparing a Sonatype/Maven Central release.
agent-architect
alicoder001/agent-skills
Professional project architecture, context engineering, verification design, and AI agent orchestration for coding agents. Use when designing new CLAUDE.md or AGENTS.md systems, writing architecture-level skills, building roadmaps with verification gates, bootstrapping projects for AI-assisted development, planning multi-agent pipelines, optimizing session handoffs, designing closure protocols, or auditing architecture-level agent setups. Do not use for repairing existing Codex AGENTS.md or .agents/CONTEXT.md files, startup self-heal flows, direct code implementation, code review, or debugging.
supabase-database
santiagoxor/pintureria-digital
Specialized skill for working with Supabase PostgreSQL database including queries, RLS policies, migrations, functions, and data operations. Use when implementing database queries, creating migrations, setting up RLS policies, writing SQL functions, or debugging database issues.
langfuse-trace-list
neuradex/langfuse-skills
List Langfuse traces with filtering options. Use when checking recent LLM calls, debugging issues, or monitoring costs.
use-my-browser
xixu-me/skills
Use when work depends on the user's live browser session or visible rendered state rather than static fetches, especially for browser debugging contexts or DevTools-selected elements or requests, logged-in dashboards or CMS flows, localhost apps, forms, uploads, downloads, media inspection, DOM or iframe inspection, Shadow DOM, or browser failures that look like soft 404s, auth walls, anti-bot checks, or rate limits.
gh-fix-ci
moizibnyousaf/ai-agent-skills
Use when a user asks to debug or fix failing GitHub PR checks that run in GitHub Actions; use `gh` to inspect checks and logs, summarize failure context, draft a fix plan, and implement only after explicit approval. Treat external providers (for example Buildkite) as out of scope and report only the details URL.
debugging-ci-failures
posthog/posthog
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firebase-development:debug
2389-research/claude-plugins
This skill should be used when troubleshooting Firebase emulator issues, rules violations, function errors, auth problems, or deployment failures. Triggers on "error", "not working", "debug", "troubleshoot", "failing", "broken", "permission denied", "emulator issue".
stripe
andrehfp/tinyplate
Help with Stripe payment integration in Next.js projects. Use when implementing checkout flows, subscriptions, webhooks, customer portal, or debugging payment issues. Covers Stripe SDK usage, webhook verification, and subscription management.
flutter-setup
poorgramer-zack/dart-expert-skills
Complete Flutter SDK installation, IDE configuration, and troubleshooting guide for Linux, macOS, and Windows. Use for installing Flutter SDK from scratch, configuring PATH environment variables across platforms, setting up VS Code/Android Studio/IntelliJ IDEA with Flutter plugins, resolving 'flutter command not found' errors, fixing flutter doctor warnings and errors, troubleshooting Android SDK/NDK installation issues, configuring Xcode and CocoaPods on macOS, installing Visual Studio C++ build tools on Windows, resolving PATH conflicts and SDK path issues, fixing network/proxy setup problems, debugging IDE plugin activation, configuring emulators and simulators, handling platform-specific build errors, resolving dependency conflicts, fixing certificate and signing issues, troubleshooting hot reload failures, and verifying successful installation with flutter doctor diagnostics.
alloc-profile
clickhouse/clickhouse
Analyze a jemalloc (or other) allocation profile in collapsed stack format. Use when the user wants to analyze memory allocations, find top allocators, or understand memory usage patterns from a .collapsed profile file.
bisect
clickhouse/clickhouse
Bisect a ClickHouse regression using pre-built master binaries from CI. Use when the user wants to find the commit that introduced a bug.
find-regression
hypercube-xyz/git-agent-skills
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xaf-memory-leaks
kashiash/xaf-skills
XAF Memory Leak Prevention - event handler symmetry (OnActivated/OnDeactivated/Dispose), ObjectSpace scoped disposal with using statement, batch processing large datasets, IDisposable pattern for controllers with List<IDisposable> tracker, WeakEventSubscription, static reference anti-patterns, CollectionSource disposal, Session/HttpContext/Application anti-patterns (WebForms), ObjectSpacePool, controller lifecycle tracking, NavigationMonitor, warning signs, diagnostic tools (dotMemory, PerfView, XAF Tracing). Use when diagnosing memory leaks, auditing controller disposal, reviewing ObjectSpace lifetime, or reviewing Session usage in DevExpress XAF applications.
building-rust-crates
wdm0006/python-skills
Sets up, tests, and publishes Rust crates — Cargo project layout, a fmt/clippy/test CI gate that actually gates, MSRV pinning, feature-flag hygiene, and crates.io publishing with cargo-release. Use when creating a Rust crate, wiring GitHub Actions for Rust, debugging a clippy or MSRV CI failure, or preparing a crates.io release.
building-go-projects
wdm0006/python-skills
Sets up and maintains Go projects with a CI gate that actually gates — module-path correctness, golangci-lint config that matches the installed major version, deterministic gofmt, a pinned toolchain, and meaningful test/lint jobs. Use when creating a Go module, wiring GitHub Actions for Go, debugging a golangci-lint or gofmt CI failure on an unrelated PR, or reviewing a Go CLI that shells out to git/gh.
bun-package-manager
laurigates/claude-plugins
Fast JavaScript package management with Bun — install, add, remove, update. Use when installing all deps, adding/removing packages, running `bun update`/`outdated`, managing workspaces, doing a `--frozen-lockfile` CI install, or debugging conflicts.
develop-userscripts
xixu-me/skills
Use when building, debugging, packaging, or publishing browser userscripts for Tampermonkey or ScriptCat, including GM APIs, metadata blocks, permission issues, @match/@grant/@connect setup, ScriptCat background or scheduled scripts, UserConfig blocks, or subscription workflows.
launch
microsoft/vscode-copilot-chat
Launch and automate VS Code Insiders with the Copilot Chat extension using agent-browser via Chrome DevTools Protocol. Use when you need to interact with the VS Code UI, automate the chat panel, test the extension UI, or take screenshots. Triggers include 'automate VS Code', 'interact with chat', 'test the UI', 'take a screenshot', 'launch with debugging'.
flask-werkzeug-attack
uphiago/recon-skills
Exploit Flask/Werkzeug debugger exposure for traceback and SECRET leaks.
gcp-cli-gotchas
funnelenvy/agents_webinar_demos
Use when encountering gcloud or bq CLI formatting errors, quote escaping issues, command substitution problems, or when debugging CLI commands. Provides solutions for backtick usage, heredoc syntax, timestamp filters, parameter escaping, and multiline command formatting.
debugging-wizard
thesaifalitai/claude-setup
Use when investigating errors, analyzing stack traces, or finding root causes of unexpected behavior. Invoke for error investigation, troubleshooting, log analysis, root cause analysis.
nextjs-bisect-regression
vercel-labs/next-maintainer-skills
Locate the introduction or fix boundary for a validated Next.js regression using releases or commits and an executable reproduction. Use after reported-version-versus-canary verification when a vercel/next.js maintainer needs the last unchanged and first changed version or commit.
axiom-getting-started
megastep/codex-skills
Use when first installing Axiom, unsure which skill to use, want an overview of available skills, or need help finding the right skill for your situation — interactive onboarding that recommends skills based on your project and current focus
loop-log-analysis
aki-0421/loop
Analyze loop CLI run logs and audit artifacts. Use when inspecting `.loop/runs`, `agent-events.jsonl`, task event logs, `errors.log`, validation output, PR check artifacts, token usage, stalled iterations, failed tasks, retries, cleanup, or any request to explain what happened during a loop run.
debug-mode-production-anti-pattern
igbuend/grimbard
Security anti-pattern for debug mode in production (CWE-215). Use when generating or reviewing code that configures application settings, deployment configurations, or error handling. Detects hardcoded debug flags and development-only features in production.
lean-bisect
leanprover/skills
Bisect Lean toolchain versions to find where behavior changes. Use when trying to identify which Lean 4 commit caused a regression or behavior change.
perf-report
clickhouse/clickhouse
Analyze CI performance comparison reports for a ClickHouse PR. Lists all regressions and improvements, cross-references with master history to distinguish real changes from flaky tests.
gh-fix-ci
firecrawl/skills
Use when a user asks to debug or fix failing GitHub PR checks that run in GitHub Actions; use `gh` to inspect checks and logs, summarize failure context, draft a fix plan, and implement only after explicit approval. Treat external providers (for example Buildkite) as out of scope and report only the details URL.
security-best-practices
firecrawl/skills
Perform language and framework specific security best-practice reviews and suggest improvements. Trigger only when the user explicitly requests security best practices guidance, a security review/report, or secure-by-default coding help. Trigger only for supported languages (python, javascript/typescript, go). Do not trigger for general code review, debugging, or non-security tasks.
debugging
citypaul/.dotfiles
WHEN diagnosing a reproducible or observable software failure outside a CI-pipeline-specific workflow; NOT for speculative cleanup, general code review, or speculative behavior changes presented as fixes. Preserves evidence, tests one causal hypothesis at a time, and fixes the owning boundary only when requested; separately authorized reversible incident mitigation may precede diagnosis while severe harm is ongoing.
verbose-error-messages-anti-pattern
igbuend/grimbard
Security anti-pattern for verbose error messages (CWE-209). Use when generating or reviewing code that handles errors, exceptions, or generates user-facing error responses. Detects stack trace exposure and detailed error information leakage to users.
docker-troubleshooting
full-statck-skills/docker-skills
Guidance for debugging and troubleshooting Docker issues. Covers container startup failures (exit codes, docker logs, inspect), disk space exhaustion (system df/prune, log rotation), OOM and resource pressure (memory limits, stats), network connectivity problems (network inspect, iptables, DNS resolution), storage issues (permission denied, volume inspection), daemon problems (dockerd startup, socket permissions), and common error diagnosis. Use when the user asks about docker troubleshooting, docker debug, OOM, disk full, network issues, docker not starting, container crash, or needs to investigate Docker problems. 使用场景：docker 排查、docker debug、容器问题、OOM、磁盘满、网络不通、启动失败、配置问题.
docker-run
full-statck-skills/docker-skills
Guidance for running and managing Docker containers. Covers the complete container lifecycle (create/start/stop/rm/restart), resource constraints (--memory/--cpus), health checks (HEALTHCHECK), restart policies, logging drivers, container inspection (inspect/stats/top), exec debugging, and signal handling. Use when the user asks about docker run, container management, resource limits, health checks, docker logs, docker exec, restart policies, or needs to manage running containers. 使用场景：docker run、容器管理、资源限制、健康检查、重启策略、docker logs、docker exec、docker ps.
tidb-sql
pingcap/agenticstore
Write, review, and adapt SQL for TiDB with correct handling of TiDB-vs-MySQL differences (VECTOR type + vector indexes/functions, full-text search, AUTO_RANDOM, optimistic/pessimistic transactions, foreign keys, views, DDL limitations, and unsupported MySQL features like procedures/triggers/events/GEOMETRY/SPATIAL). Use when generating SQL that must run on TiDB, migrating MySQL SQL to TiDB, or debugging TiDB SQL compatibility errors.
github-workflows
vinnie357/claude-skills
Write and optimize GitHub Actions workflows. Use when creating CI/CD pipelines, configuring workflow triggers, managing artifacts, or debugging workflow runs.
hunt
ninehills/skills
Finds root cause before applying fixes for errors, crashes, regressions, failing tests, broken behavior, and screenshot-reported defects. Use when users report in any language errors, crashes, broken behavior, regressions, failing tests, screenshot evidence, or something that used to work and now fails. Not for code review or new features.
debug-helper
inbharatai/claude-skills
Diagnose and fix bugs systematically — error analysis, stack trace interpretation, root cause identification, and fix suggestions.
kql-skill
julianobarbosa/claude-code-skills
Kusto Query Language authoring, debugging, optimization, translation, and tooling for Azure Monitor, Sentinel, ADX, and Application Insights. USE WHEN user mentions 'KQL', 'Kusto', 'Log Analytics query', 'Sentinel query', 'hunting query', 'ADX query', 'Application Insights query', 'translate SQL to KQL', 'Splunk to KQL', 'optimize query', 'KQL performance', '.kql file', 'detection rule', 'analytics rule', 'threat hunting', 'Azure monitor query', 'log query', 'summarize operator', 'where TimeGenerated', OR any request involving querying Azure log/telemetry data. Even if the user doesn't say "KQL" explicitly — if they're asking about querying Azure logs, security events, or telemetry data, this skill applies.
prisma-cli-debug
prisma/cursor-plugin
prisma debug. Reference when using this Prisma feature.
teams-dev
microsoft/teams-sdk
Use this skill whenever the user mentions Microsoft Teams in a development context — whether they're building, integrating, configuring, debugging, or just asking questions. Covers bots, message extensions, embedded web apps, Adaptive Cards, dialogs, SSO, infrastructure, the Teams Developer CLI/SDK, and general Teams platform queries. If the word "Teams" appears, err on the side of invoking this skill.
systematic-debugging
majiayu000/spellbook
Four-phase debugging framework for any technical issue. Use when encountering bugs, errors, or unexpected behavior. Prevents random fix attempts.
javascript-pro
itsimonfredlingjack/codex-dev-plugin
Master modern JavaScript with ES6+, async patterns, and Node.js APIs. Handles promises, event loops, and browser/Node compatibility. Use PROACTIVELY for JavaScript optimization, async debugging, or complex JS patterns.
docker-helper
1mangesh1/dev-skills-collection
Docker operations including Dockerfile authoring, image builds, container lifecycle, networking, volumes, multi-stage builds, buildx, security hardening, and debugging. Use when asked to "build image", "run container", "write dockerfile", "docker compose", "optimize image", "debug container", "multi-platform build", "docker network", "docker volume", "scan image", "prune docker", or any container-related task.
fd
unive3sal/daedal-skills
Use this skill whenever the user wants to find files or directories by name, extension, glob, regex, type, size, modification time, or path; replace slow find commands or Glob/glob-style file discovery; compose, debug, or explain fd commands; or search filesystem entries before feeding them into tools like fzf, xargs, editors, formatters, or scripts. Prefer fd as the primary file-finder over find and generic glob discovery because it is faster, simpler, parallelized, and respects ignore files by default; fall back to POSIX find only when fd is unavailable or when a find-only predicate is required.
ai-assist-observability-audit
jparkerweb/ai-assist-skills
17-dimension observability audit with tier activation, health scoring, and cost analysis. Covers logging, metrics, tracing, alerting, SLOs, profiling, security observability, and developer experience. Use when assessing observability posture, identifying telemetry gaps, or optimizing observability costs.
regression-insight
haomingz/kimi-skills
对 CSV/Excel 数据执行线性回归（OLS）或逻辑回归（Logistic），一键输出完整统计结果（包含回归系数、R²、p值、VIF等）和中文通俗解读。当用户提及回归分析、拟合模型、查看系数显著性、R方、p值、共线性（VIF），或使用关键词如 回归、regression、OLS、logit、拟合、显著性 时触发。
axiom-memory-debugging
megastep/codex-skills
Use when you see memory warnings, 'retain cycle', app crashes from memory pressure, or when asking 'why is my app using so much memory', 'how do I find memory leaks', 'my deinit is never called', 'Instruments shows memory growth', 'app crashes after 10 minutes' - systematic memory leak detection and fixes for iOS/macOS
awf-debug-tools
github/gh-aw-firewall
Practical Python scripts for debugging awf - parse logs, diagnose issues, inspect containers, test domains
agentic-workflows
github/gh-aw
Route gh-aw workflow design/create/debug/upgrade requests to the right prompts.
debug-issue-with-datadog
langfuse/langfuse
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