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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winui-session-report
microsoft/win-dev-skills
Analyze the current or a recent agent session (GitHub Copilot CLI or Claude Code) and generate a diagnostic report. Use when asking for session feedback, debugging agent behavior, or reviewing what happened during a build session.
refac-cli-push-down
dagster-io/erk
Moving mechanical computation from LLM prompts into tested CLI commands. Use when writing or reviewing slash commands with embedded bash, when a skill/command exceeds ~100 lines of procedural steps, when adding parsing/validation/transformation logic to markdown prompts, when debugging flaky embedded scripts, or when refactoring commands to reduce token overhead.
clojurescript
bsene/skills
Write, review, debug, and configure ClojureScript code and projects. Use this whenever the user mentions ClojureScript, .cljs/.cljc files, shadow-cljs, figwheel, the CLJS compiler, JS interop from Clojure, Reagent/re-frame/Reagent-style UI code, or asks to convert JS/TS logic into ClojureScript. Also use it for questions about CLJS compiler options (:optimizations, :main, :npm-deps, :externs, etc.), consuming JS/npm libraries from CLJS, source maps, Google Closure Library usage, or the newer ^:async/await function support. Also trigger for CLJS recursion/stack-overflow/trampoline questions. Trigger even if the user just pastes CLJS code with an error and asks "what's wrong here" or asks to set up a new CLJS project. Do NOT use for nbb (babashka/nbb) scripts, `nbb.edn` projects, or anything meant to run via `nbb script.cljs`/`npx nbb` — those have a different (SCI-interpreted, no-Closure-Compiler) language surface; use the clojurescript-nbb skill for those instead.
bisect
ohm41321/luciazero
Pinpoint the first bad commit for a reproducible regression in a safe temporary worktree. Use when HEAD is bad, a known revision is good, and one unattended command distinguishes them; handles flaky endpoints and git-bisect skip exit 125.
condition-based-waiting
iml1s/flutter-claude-skills
Use when tests have race conditions, timing dependencies, or inconsistent pass/fail behavior - replaces arbitrary timeouts with condition polling to wait for actual state changes, eliminating flaky tests from timing guesses
staff-engineering-skills-memory-leaks
triggerdotdev/staff-engineering-skills
Prevent memory leaks in garbage-collected languages (Node.js, Go). Use when writing code that accumulates state over time -- in-memory caches, event listeners, timers, closures, goroutines, or any data structure that grows as requests are processed. Activates on patterns like module-level Map/Set/Array that grows without eviction, addEventListener or .on() without corresponding removal, setInterval without clearInterval, closures capturing large objects, Go goroutines without cancellation, or defer inside loops.
axiom-ios-performance
megastep/codex-skills
Use when app feels slow, memory grows, battery drains, or diagnosing ANY performance issue. Covers memory leaks, profiling, Instruments workflows, retain cycles, performance optimization.
debugging-strategies
sangrokjung/claude-forge
Master systematic debugging techniques, profiling tools, and root cause analysis to efficiently track down bugs across any codebase or technology stack. Use when investigating bugs, performance issues, or unexpected behavior.
rhino3d-scripts
github/awesome-copilot
Authoring and debugging scripts for Rhinoceros 3D (Rhino 8 and later). Use when asked to write RhinoScript (VBScript / .rvb / .vbs), RhinoPython, or RhinoCommon-based scripts; automate Rhino modeling tasks; build command macros; manipulate Rhino geometry, layers, blocks, or document objects; pick objects from the viewport; control redraw and undo; or load and run scripts from the Rhino Script Editor. Covers `rhinoscriptsyntax`, `scriptcontext`, the `Rhino.*` RhinoCommon namespaces (`Rhino.Geometry`, `Rhino.DocObjects`, `Rhino.Input`, `Rhino.UI`, `Rhino.Display`, `Rhino.FileIO`), and the Rhino 8 unified Script Editor.
debug-firewall
github/gh-aw-firewall
Debug the AWF firewall by inspecting Docker containers (awf-squid, awf-agent), analyzing Squid access logs, checking iptables rules, and troubleshooting blocked domains or network issues.
debugging-workflows
github/gh-aw-firewall
Debug GitHub Actions workflows by downloading logs, analyzing summaries, and understanding how agentic workflows and the AWF firewall work together.
kql
microsoft/skills
KQL language expertise for writing correct, efficient Kusto Query Language queries. Covers syntax gotchas, join patterns, dynamic types, datetime pitfalls, regex patterns, serialization, memory management, result-size discipline, and advanced functions (geo, vector, graph). USE THIS SKILL whenever writing, debugging, or reviewing KQL queries — even simple ones — because the gotchas section prevents the most common errors that waste tool calls and cause expensive retry cascades. Trigger on: KQL, Kusto, ADX, Azure Data Explorer, Fabric Real-Time Intelligence, EventHouse, Log Analytics, log analysis, data exploration, time series, anomaly detection, summarize, where clause, join, extend, project, let statement, parse operator, extract function, any mention of pipe-forward query syntax.
debugging-difficult-bugs
mastra-ai/mastra
Use early when debugging a medium or hard bug, especially when tests alone may not reveal the real runtime failure. Trigger this before extended TDD iteration when a bug involves runtime state, ordering, persistence, streaming, concurrency, UI/manual reproduction, external services, or when a red or newly passing test may not model the real issue. Skip only when the root cause is already directly proven by a stack trace or deterministic test that exercises the real runtime path.
rails-debugging
shoebtamboli/rails_claude_skills
Use when debugging Rails issues - provides Rails-specific debugging tools (logs, console, byebug, SQL logging) integrated with systematic debugging process
loom-docker
cosmix/loom
Docker and container expertise. Use for writing Dockerfiles, docker-compose files, multi-stage builds, layer optimization, image security hardening, networking, volumes, registries, and container debugging.
elasticsearch-analysis
incidentfox/incidentfox
Elasticsearch/OpenSearch log analysis using Lucene query syntax and Query DSL. Use when investigating issues via ELK stack, OpenSearch, or any Elasticsearch-based logging.
atproto-oauth
ngerakines/atproto-skills
This skill should be used when the user is implementing, auditing, or debugging AT Protocol OAuth in Rust, TypeScript, or Go — covering confidential backend (BFF) clients, public SPA clients, native desktop clients, the authorization flow (PAR / DPoP / PKCE), client metadata publication, permission / scope design, refresh token handling, session storage, and server-side DPoP validation. Triggers on phrases like "OAuth client metadata", "client_id as URL", "private_key_jwt", "dpop_bound_access_tokens", "dpop_signing_alg_values_supported", "PAR", "pushed authorization request", "request_uri", "DPoP proof", "DPoP nonce", "use_dpop_nonce", "invalid_dpop_proof", "ath claim", "htu", "htm", "jkt", "jwk thumbprint", "refresh token race", "token rotation", "invalid_grant", "access_denied", "state store", "session store", "requestLock", "oauth/authorize", "oauth/callback", "oauth/token", "oauth/par", "oauth/revoke", ".well-known/oauth-protected-resource", ".well-known/oauth-authorization-server", "permission-set", "transition:generic", "transition:email", "atproto scope", "account:email", "identity:handle", "repo:*", "blob:*", "rpc:*", "include:", "iss parameter", "RFC 9449", "RFC 9126", "RFC 7636", "RFC 7523", "RFC 9207", "OAuth 2.1", "SameSite=Lax for OAuth", "confidential client", "public client", "BFF pattern", "SPA OAuth", "app password migration". Also triggers on dependency/import names like `atproto-oauth`, `@atproto/oauth-client-node`, `@atproto/oauth-client-browser`, `@atproto/oauth-client`, `@atproto/oauth-types`, `@atproto/jwk-jose`, `indigo/atproto/auth/oauth`, `NodeOAuthClient`, `BrowserOAuthClient`, `ClientApp`, `ClientSession`, `ClientAuthStore`, `OAuthClient`, `OAuthRequestStorage`, `DpopRetry`, `validate_dpop_jwt`, `auth_dpop`, `request_dpop`, `StartAuthFlow`, `ProcessCallback`, `ResumeSession`, `JoseKey`. Use this skill to build a login/callback/refresh/logout flow, publish a `/oauth-client-metadata.json` document, implement a pre-flow `state` store or post-flow session store, design permission sets, set up DPoP on resource requests, or debug token/DPoP failures. Covers identity verification (`sub` DID → DID doc → PDS → AS match), session-cookie hardening (SameSite=Lax, HttpOnly, encryption at rest), refresh-race mitigation, multi-node BFF lock patterns, SSRF hardening on metadata fetches, and cross-language differences between the three reference implementations. Does NOT cover DID / handle resolution in depth (see `atproto-identity-resolution`), CAR / MST / commit signing (see `atproto-repository`), CID parsing (see `atproto-cid`), lexicon-level record validation or XRPC method invocation beyond OAuth (see `atproto-lexicon`), or app-password flows (a separate, legacy mechanism being deprecated in favor of OAuth).
godot
haxqer/godot-skill
Godot project development, inspection, structured resource and project-setting editing, tileset and tilemap authoring, GridMap painting, theme and stylebox authoring, spritesheet and keyframe animation, audio bus routing, 3D mesh-collision and CSG baking, sprite-silhouette collision, 2D/3D navigation-mesh baking, glTF export, global shader uniforms, multiplayer replication config, import auditing, debugging, unit-test running, deterministic input and screenshot scenarios, runtime and performance validation, architecture design, creative content integration, and export preparation. Use when Codex needs to inspect or modify Godot projects, build scenes and UI, wire scripts and signals, paint TileMapLayer or GridMap levels, author Theme resources, build AnimationPlayer clips or SpriteFrames atlases, set up audio buses, bake mesh/CSG collision or navigation meshes, trace collision from sprites, export glTF, edit InputMap, autoloads, or shader globals, run GUT/GdUnit4 tests, validate GDScript/C#/GDExtension/editor plugins, test gameplay flows, add project-native art/music/story content, export mobile/web/desktop/server/visionOS builds, create mesh libraries, or repair resource UIDs. Designed for Godot 4.7 and compatible with Godot 4.x; prefer host-native Godot tools when exposed and use the bundled portable workflows otherwise.
bugfix-and-debug
htooayelwinict/claude-config
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nitro-overview
boycce/nitro-web
For projects using nitro-web only. Quick overview of a Nitro web app, including the stack, constants, files and folders, and request flow.
pwn-exploit
xuziqiang98/my-skills
Comprehensive binary exploitation techniques covering stack overflow, format string, heap exploitation, integer overflow, and advanced exploitation methods. Use when working on CTF challenges, binary vulnerability analysis, exploit development, or debugging memory corruption vulnerabilities in Linux binaries (x86/x64).
shipping-swift-apps
wdm0006/python-skills
Ships native Swift/SwiftUI apps to TestFlight and the App Store with fastlane and xcodebuild — one App Store Connect API key for both, fastlane lanes scoped to metadata/pricing/subscriptions, headless `xcodebuild archive` + `-exportArchive destination=upload`, build numbers read from App Store Connect instead of guessed, closed pre-release trains, `SKIP_INSTALL` for bundled helper apps, and per-destination archives for multiplatform targets. Use when setting up fastlane for an Xcode project, uploading a build to TestFlight from a script or CI, or debugging "Invalid Pre-Release Train", "expected one {} but found app-store-connect", "Unknown Distribution Error", or a duplicate-build-number rejection.
Debugging
hainamchung/agent-assistant
Systematic debugging framework ensuring root cause investigation before fixes. Includes four-phase debugging process, backward call stack tracing, multi-layer validation, and verification protocols. Use when encountering bugs, test failures, unexpected behavior, performance issues, or before claiming work complete. Prevents random fixes, masks over symptoms, and false completion claims.
debug
vocalbridgeai/vocal-bridge-claude-plugin
Stream real-time debug events from the Vocal Bridge voice agent. Shows transcriptions, agent responses, tool calls, and errors.
sentry-debug-issue
getsentry/plugin-claude
Debug and fix a Sentry issue — find it (by link, ID, or search), pull full context (stack trace, breadcrumbs, trace, logs), optionally run Seer root-cause / autofix, apply the code fix, and resolve it via a `Fixes PROJECT-NAME-12A` commit/PR. Use when working a known error or hunting one down to fix.
span-timeline-events
triggerdotdev/trigger.dev
Use when adding, modifying, or debugging OTel span timeline events in the trace view. Covers event structure, ClickHouse storage constraints, rendering in SpanTimeline component, admin visibility, and the step-by-step process for adding new events.
javascript-pro
sidetoolco/org-charts
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.
javascript-pro
herdiansah/antigravity-skills-master
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.
ogt-cli-gemini
opendndapps/ogt-skills
Run Gemini CLI for AI-powered tasks, code understanding, file operations, and automation. Free tier with Google OAuth (included in Gemini Advanced). Use for fast generation, bulk content, debugging, and research. Preferred for load balancing sub-agent work (35% weight).
elasticsearch
jawwadfirdousi/agent-skills
Query and analyze logs in Elasticsearch. Use this skill when the user wants to search logs, query log data, count log entries, filter by trace IDs, or analyze application logs stored in Elasticsearch. Common use cases include debugging requests by trace ID, finding error logs, analyzing request patterns, and extracting specific fields from log entries.
magento-infra
furan917/magento-ai-toolkit
Configure and troubleshoot Magento 2 infrastructure: Redis, RabbitMQ, and OpenSearch/Elasticsearch. Use when setting up or debugging cache, queues, or search.
observability-patterns
vanman2024/ai-dev-marketplace
Comprehensive observability setup patterns for Google ADK agents including logging configuration, Cloud Trace integration, BigQuery Agent Analytics, and third-party observability tools (AgentOps, Phoenix, Weave). Use when implementing monitoring, debugging agent behavior, analyzing agent performance, setting up tracing, or when user mentions observability, logging, tracing, BigQuery analytics, AgentOps, Phoenix, Arize, or Weave.
tauri-mobile
partme-ai/full-stack-skills
Set up Tauri v2 for Android and iOS development including build configuration, bundle identifiers, and mobile debugging. Use when adding mobile targets to a Tauri app, configuring Android/iOS bundle IDs, or debugging on mobile devices and emulators.
dx-report-integration
e1em3ntodx/dx-reporting-skills-repo
Expert skill for embedding DevExpress Reports into applications — NuGet packages, DI registration, viewer/designer wiring, async export, ReportStorageWebExtension, toolbar and parameter editor customization, security, and troubleshooting. Use whenever someone needs to add a DevExpress report viewer or designer to WinForms, WPF, ASP.NET Core MVC, Razor Pages, Angular, React, or Blazor; configure Program.cs for reporting; set up npm packages and bundleconfig.json; export reports to PDF/Excel/Word without a preview; configure ReportStorageWebExtension or IReportProvider; customize viewer toolbar, tab panel, search panel, or parameter editors; implement authorization or CSRF protection; debug errors like "viewer not rendering", "Unable to process binding", "Internal Server Error", "Report not found", 400/404/CORS errors; or upgrade DevExpress versions.
crash-analyst
fatih-developer/fth-skills
Parse and analyze crash reports from tools like Crashlytics or Sentry. Interpret iOS symbolication and Android ProGuard/R8 mappings, trace stack execution to find the root cause, and propose code-level fixes.
debug-root-cause
manastalukdar/ai-devstudio
Root cause analysis with dependency tracing and call stack analysis
regression-dog
imaman/skills
Review code for regressions. TRIGGER when: reviewing changes, checking for breakage, or auditing commits (e.g., "did I break anything", "review last commit").
regression-review
junerdd/skills
Perform a scoped, coverage-led review of working tree, staged, commit-range, branch, or PR changes to find user-visible behavioral regressions. Use when Codex must audit code changes for broken or degraded user journeys, changed defaults, loading/error/permission/session behavior, stale data, ordering, retries, duplicate/destructive actions, exported output, emails, CLI output, or other visible behavior, and must write a Markdown report that enumerates all distinct findings discovered within the reviewed scope plus coverage gaps, intentional visible changes, and scoped behavior-graph deltas when they clarify the affected path.
debug-systematic
jerelvelarde/chalk-skills
Apply a systematic four-phase debugging workflow when the user asks to debug an issue, investigate a bug, troubleshoot a problem, or find the root cause of unexpected behavior
loom-debugging
cosmix/loom
Systematic diagnosis and resolution of software bugs, test failures, data quality issues, and performance problems. Use for root-cause analysis, stack trace investigation, flaky/intermittent tests, regressions, crash triage, and "passes locally, fails in CI".
hunt
draychou/waza
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.
Memory Leak Diagnosis Skill
fal3/claude-skills-collection
Diagnose, explain, and fix Swift and Apple-platform memory leaks, unexpected object retention, deinit failures, heap growth, retain cycles, runaway caches, task and AsyncSequence lifetimes, timer/delegate/closure ownership, jetsam, and ARC issues using Xcode Memory Graph and Instruments Allocations, Leaks, and VM tools. Use when objects do not deallocate, memory rises across repeated workflows, or weak/unowned and capture-list choices are unclear. Do not enable Zombies for leak measurement, call every temporary retention a leak, or use unowned without a proven lifetime invariant.
memory-leak
manastalukdar/ai-devstudio
Memory leak detection and analysis for Node.js, Python, and browsers
memory-leaks
thedaviddias/front-end-checklist
Use when reviewing scripts, client components, bundles, or runtime behavior related to Prevent common memory leak patterns. Inspect both source code and the browser execution path so fixes target the real bottleneck or bug.
debug
blizzardblast/frey-skills
Use when the user asks to investigate, diagnose, troubleshoot, reproduce, or determine the root cause of a concrete failure, regression, flaky behavior, failing test, production incident, or environment-specific defect before editing. Produces a read-only evidence-backed investigation with reproduction status, causal trace, hypothesis ledger, and CONFIRMED/LIKELY/UNRESOLVED/NOT_A_DEFECT status.
git-bisect-debugging
kentoshimizu/sw-agent-skills
Locate regression-introducing commits using git bisect with deterministic classification. Use when a reproducible regression exists but the introducing commit is unknown; do not use for CI workflow design or application behavior implementation.
refactor-code-memory
ahmedbenaw/refactor-chain
Use this skill when memory keeps climbing over time or across repeated actions and the user wants the leak found and fixed — plain triggers like \"the app's memory keeps growing\", \"it OOMs after a while\", \"the tab gets slower the longer I use it\", \"there's a memory leak\", \"heap keeps climbing\", \"detached DOM nodes\", \"process RSS grows and never comes back\". It diagnoses leaks by taking heap snapshots before and after a repeated action, diffing them for objects that should have been freed but weren't, and following retained-size growth to the reference that pins them in memory. Works for both browser (DevTools heap) and Node.js. It is the do-the-work step of the refactor-chain DEBUG lane, reached when the harness classifies a case as debug/code-memory. Uses a browser/DevTools heap tool when available; otherwise Node's own heap-snapshot APIs.
hermes-atropos-environments
nousresearch/hermes-agent
Build, test, and debug Hermes Agent RL environments for Atropos training. Covers the HermesAgentBaseEnv interface, reward functions, agent loop integration, evaluation with tools, wandb logging, and the three CLI modes (serve/process/evaluate). Use when creating, reviewing, or fixing RL environments in the hermes-agent repo.
sentry-debug-issue
getsentry/plugin-codex
Debug and fix a Sentry issue — find it (by link, ID, or search), pull full context (stack trace, breadcrumbs, trace, logs), optionally run Seer root-cause / autofix, apply the code fix, and resolve it via a `Fixes PROJECT-NAME-12A` commit/PR. Use when working a known error or hunting one down to fix.
axiom-apl
axiomhq/cli
APL query language reference for Axiom. Provides operators, functions, patterns, and CLI usage. Auto-invoked by specialized Axiom skills when writing or debugging APL queries.
shadcn
openai/plugins
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".
cli-push-down
dagster-io/erk
Moving mechanical computation from LLM prompts into tested CLI commands. Use when writing or reviewing slash commands with embedded bash, when a skill/command exceeds ~100 lines of procedural steps, when adding parsing/validation/transformation logic to markdown prompts, when debugging flaky embedded scripts, or when refactoring commands to reduce token overhead.
tensorboard
firecrawl/ai-research-skills
Visualize training metrics, debug models with histograms, compare experiments, visualize model graphs, and profile performance with TensorBoard - Google's ML visualization toolkit
phoenix-observability
firecrawl/ai-research-skills
Open-source AI observability platform for LLM tracing, evaluation, and monitoring. Use when debugging LLM applications with detailed traces, running evaluations on datasets, or monitoring production AI systems with real-time insights.
structured-logging
majiayu000/spellbook
Comprehensive logging system design guide. Use when designing log architecture, establishing logging standards, adding observability, or debugging production issues. Covers centralized configuration, field standards, and distributed tracing.
gtkx
knoopx/pi
Build GTK4 desktop apps with GTKX — React JSX renders as native Linux widgets via Rust FFI. Use when creating Adwaita widgets, styling GTK with CSS-in-JS, or debugging GTKX components.
kubernetes-axi
thatdudealso/kubernetes-axi
Use kubernetes-axi to discover, inspect, deploy, debug, scale, roll out, expose, and clean up Kubernetes workloads through safe TOON CLI workflows.
supabase
spiosifidis/my-claude-skills
Use when doing ANY task involving Supabase. Triggers: Supabase products (Database, Auth, Edge Functions, Realtime, Storage, Vectors, Cron, Queues); client libraries and SSR integrations (supabase-js, @supabase/ssr) in Next.js, React, SvelteKit, Astro, Remix; auth issues (login, logout, sessions, JWT, cookies, getSession, getUser, getClaims, RLS); Supabase CLI or MCP server; schema changes, migrations, declarative schemas, security audits, Postgres extensions (pg_graphql, pg_cron, pg_vector); debugging and troubleshooting errors or unexpected behavior on Supabase projects (HTTP errors, Postgres errors, RLS surprises, permission denied, schema cache issues, timeouts, Edge Function crashes, Realtime drops, Storage failures) and reading or querying logs (Logs Explorer, ClickHouse).
drizzle-postgres
rujealfon/skills
Build, review, migrate, and troubleshoot PostgreSQL data layers with Drizzle ORM and Drizzle Kit. Use whenever the user is defining a Postgres schema with pgTable, writing Drizzle queries (select/insert/update/delete, joins, relational queries), setting up drizzle.config.ts, running drizzle-kit generate/migrate/push/pull/studio, wiring a Postgres driver (node-postgres, postgres.js, Neon, Supabase, Vercel Postgres, PGlite), adding indexes/constraints/relations, or debugging Drizzle/Postgres errors — even if they just say "add a table," "write a migration," or name a driver/provider without saying "Drizzle" explicitly. This skill is scoped to PostgreSQL only; for MySQL, SQLite, MSSQL, SingleStore, or CockroachCB projects, rely on general Drizzle knowledge instead.
sqlite-fts5-queries
hoangsoft90/ai_skills
Use when writing or debugging SQLite FTS5 queries in Dart (snippet(), bm25(), MATCH) that return empty results or throw. Covers the alias trap (snippet/bm25 are top-level functions taking the table name, not methods on an alias) and the probe-first pattern to isolate SQL from app code.