Debugging skills

11,121 tagged Debugging, measured the same way as everything else here.

Browse within: LLM 141agent 114skills 109cli 107agents 90agentic-ai 81javascript 80cursor 69ai-coding 51claude-code-plugin 44ab-testing 42antigravity 41copilot 40mcp-server 38

renderdoc-mcp

97

JiaboLi-GitHub/renderdoc-mcp

Skill Codex

Analyze RenderDoc GPU frame captures with renderdoc-mcp MCP tools. Use when Codex needs to inspect .rdc captures, diagnose black screens or visual artifacts, explain frame structure, inspect specific draw calls, or investigate GPU rendering and performance issues.

not rated 369 +9 4mo ago A SkillSpector: warn 55 tokens original MIT

tilth

98

jahala/tilth

Skill Claude CodeCodex

Use the tilth CLI for code reading, outlining, search, callers, blast-radius deps, and structural diffs. Activate when the user asks to explore a repo, find a symbol, trace callers, read a file, view a diff, or analyze impact. Prefer tilth over grep/cat/find/ls — one invocation returns AST-aware outlines, definitions…

not rated 357 +2 changed 6d ago A SkillSpector: pass 95 tokens original MIT

procmon

99

progmboy/openprocmon

Skill Claude CodeCodex

Capture and analyze Windows process / file / registry / network activity with OpenProcMon (procmon-cli). Use when investigating what a program does — files it writes, registry keys it touches, network it makes, its process tree and call stacks — or when analyzing a Procmon-compatible .PML capture. The model: a capture…

not rated 357 +2 today A SkillSpector: pass 80 tokens original MIT

web-performance

100

millionco/debug-agent

Skill Claude CodeCodex

Use when the user reports jank, dropped frames, janky scrolling, slow click or typing response, poor INP, slow LCP, layout shifts (CLS), unresponsive pages, or asks to debug rendering, animation, or interaction performance in a browser app.

not rated 352 +1 5mo ago A SkillSpector: warn 57 tokens original MIT

code-graph

101

FalkorDB/code-graph

Skill Claude CodeCodex

This skill should be used when understanding code structure, finding dependencies between functions/classes, tracing call graphs, or exploring code relationships. Trigger phrases include 'code graph', 'call graph', 'who calls', 'what calls', 'find dependencies', 'code structure', 'inheritance', 'find paths'.

not rated 349 2d ago A SkillSpector: pass 64 tokens original MIT

browser-console

102

BetterWright/betterwright

Skill Claude CodeCodex

Diagnose browser console errors and uncaught JavaScript exceptions without dumping routine logs.

not rated 343 +5 5d ago A 19 tokens original MIT

isuzu-unity-cli

103

isuzu-shiranui/UnityMCP

Skill Claude CodeCodex

Drive the open Unity Editor from the shell with the isuzu-unity-cli command: console errors, compiling and tests, scenes, GameObjects and components, prefabs, play mode, uGUI clicks, and C# run inside the Editor. SKILL.md gives a command for each common task, so no tool list is needed.

not rated 336 +4 changed 1mo ago A SkillSpector: warn 73 tokens original MIT

semgrep

104

semgrep/skills

Skill Claude CodeCodex

Run Semgrep static analysis scans and create custom detection rules. Use when asked to scan code with Semgrep, find security vulnerabilities, write custom YAML rules, or detect specific bug patterns. IMPORTANT: Also use this skill when users ask to 'scan for bugs', 'check code quality', 'find vulnerabilities', 'static…

not rated 331 +3 2mo ago A Socket: passSnyk: pass 112 tokens

examples-qa

105

cognesy/instructor-php

Skill Codex

Verify Instructor behavior through the repository's ./examples/ suite in pass, live record, or hermetic replay mode. Use when running selected examples or the corpus, capturing and reusing recorded LLM HTTP responses, diagnosing hub results, or distinguishing real errors, assertion failures, skipped examples, and…

not rated 328 11d ago A SkillSpector: pass 67 tokens original MIT

recover-from-failure

106

cacheplane/dawnai

Skill Claude CodeCodex

How to recover when a tool call fails — diagnose, not blindly retry.

not rated 327 1mo ago A SkillSpector: pass 15 tokens original MIT

linkerlin/PUAX

Skill Claude CodeCodex

A coding assistant with a warm, encouraging companion style. It is designed to read errors and logs, look for overlooked details, and guide debugging step by step.

not rated 326 +2 1mo ago A SkillSpector: pass 47 tokens original MIT

c-to-ast

109

Narwhal-Lab/MagicSkills

Skill Claude CodeCodex

Parse C source code into an Abstract Syntax Tree (AST). Use when analyzing C programs, understanding code structure, performing static analysis, or preparing code for further program analysis (e.g., CFG, DFG, vulnerability detection).

not rated 317 +1 6mo ago A 50 tokens original MIT

ubs

110

Dicklesworthstone/ultimate_bug_scanner

Skill Claude CodeCodex

Ultimate Bug Scanner - Pre-commit static analysis for AI coding workflows. 13 languages, including bounded PHP request-flow analysis, with language-specific detection categories and native or ast-grep analysis. The AI agent's quality gate.

not rated 314 +1 changed 14d ago C 47 tokens

agnes-ai-support

111

lj1270998580-crypto/Agnes-help-skill

Skill Claude CodeCodex

A skill for supporting and troubleshooting the Agnes AI API, including checking versions and reviewing updates.

not rated 312 +3 changed 1mo ago C 97 tokens

space-doctor

112

huggingface/hf-mcp-server

Skill Claude CodeCodex ✓ vendor

Diagnose broken Hugging Face Gradio Spaces from their actual logs and pinned source, then prepare a minimal verified source fix as candidate files. Use for scheduled Space monitoring, BUILDERROR or RUNTIMEERROR triage, Gradio and ZeroGPU failures, source analysis, and patch preparation. Read-only against the Hub - it…

not rated 308 +2 yesterday A 78 tokens original MIT

root-cause-analysis

113

Prorise-cool/Claude-Code-Multi-Agent

Skill Claude Code

Problem solving using Fishbone (Ishikawa) diagrams and 5 Whys technique. Identifies root causes systematically and recommends corrective actions.

not rated 307 1mo ago A 34 tokens

filescope-mcp

114

admica/FileScopeMCP

Skill Claude CodeCodex

Codebase intelligence via FileScopeMCP — symbol lookup, dependency mapping, importance ranking, and semantic search. Use when navigating unfamiliar code, planning refactors, assessing change impact, or finding entry points in a large project.

not rated 302 5mo ago A 50 tokens

motel-debug

115

kitlangton/motel

Skill Claude CodeCodex

Debug applications with motel, a local OpenTelemetry ingest and query server. Use when the user wants runtime-evidence debugging with traces or logs, wants temporary debug instrumentation that can be removed later, or needs a repo wired to send OTLP/HTTP telemetry to a local motel server. If the target repo uses…

not rated 300 +1 1mo ago A Socket: passSnyk: warnSkillSpector: pass 78 tokens original MIT

rag-index-decisions

116

lyonzin/knowledge-rag

Skill Claude CodeCodex

After making a non-obvious architectural decision, solving a novel bug, agreeing on a coding standard, or reaching a conclusion worth remembering, index it back into the knowledge base so the next occurrence is one search away. Uses adddocument or addfromurl. Closes the feedback loop that makes a RAG-backed team…

not rated 300 +1 changed 20d ago A SkillSpector: pass 72 tokens original MIT

buddhist-method

117

nai0om/buddhist-method

Skill Claude CodeCodex

Apply Buddhist epistemic and decision-making principles as practical work disciplines to improve reasoning quality, anti-hallucination, debugging discipline, and steadiness under pressure. Use this skill whenever the user asks to "think more carefully," verify claims, debug a stubborn problem, decide between a hack…

not rated 292 +1 5mo ago A 202 tokens original MIT

packet-tracer

118

Mats2208/MCP-Packet-Tracer

Skill Claude CodeCodex

Use when building, automating, or debugging Cisco Packet Tracer networks through the packet-tracer MCP (the pt tools) — planning topologies from natural language, live-deploying into a running Packet Tracer, adding devices / links / modules, applying ACL / NAT, exporting configs, or writing raw Script-Engine JS via…

not rated 284 +15 changed 9d ago A SkillSpector: warn 139 tokens original MIT

cx

119

ind-igo/cx

Skill Claude CodeCodex

Semantic code navigation with cx CLI. Use when you need to understand code structure before reading files, find symbol definitions, trace references before refactoring, or explore large codebases efficiently. Triggers: 'cx overview', 'cx symbols', 'cx definition', 'cx references', 'code structure', 'find function'…

not rated 283 +1 1mo ago A 82 tokens original MIT

Debroid CLI Debugger

120

PatilShreyas/debroid

Skill Claude CodeCodex

Orchestrate headless Android debugging via JDWP. ACTIVATE this skill whenever asked to debug an Android application, set line or exception breakpoints, inspect runtime variables or Jetpack Compose state, step through execution, evaluate live expressions, watch fields, or diagnose runtime crashes.

not rated 276 changed 16d ago A SkillSpector: warn 61 tokens original Apache-2.0

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: