Debugging

16,959 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

mcp

121

Buoy-gg/buoy

MCP server Claude CodeCodexCursor +2

Let AI agents read and drive a running React Native or Flutter app through Buoy's devtools. Runs locally from the @buoy-gg/mcp npm package.

not rated 695 +2 yesterday A tokens not measured

surf

122

nicobailon/surf-cli

Skill Claude CodeCodex

Drive the user's logged-in Chrome from the shell. Use for browser automation (open, read, click, fill, upload, screenshot), reading a site's feed or API, or asking ChatGPT, Gemini, Perplexity or Grok through the browser.

not rated 684 +6 changed yesterday A SkillSpector: warn 53 tokens original MIT

rozenite

123

callstackincubator/rozenite

Skill Claude CodeCodex

Use Rozenite for Agents to inspect React Native DevTools data and Rozenite plugins on a live app target, either through shell-driven rozenite agent commands or programmatic @rozenite/agent-sdk usage. Trigger this skill for any task that needs live app inspection, debugging, or plugin interaction through Rozenite.

not rated 671 +1 3d ago A SkillSpector: warn 72 tokens original MIT

ast-index

124

defendend/Claude-ast-index-search

Cursor rule Cursor

Use ast-index for fast structural code search before broad text search.

not rated 582 +1 changed 1mo ago A 323 tokens original MIT

debug-live

125

microsoft/DebugMCP

Skill Claude Code ✓ vendor

Guides root-cause investigations with debugging capabilities by setting breakpoints, starting a debug session, stepping through execution, inspecting variables, and tracing symptoms back to their origin. Prefer it for runtime bugs, failing tests, exceptions, crashes, hangs, wrong/null values, and unexpected output…

not rated 579 +2 changed 1mo ago A SkillSpector: pass 84 tokens original MIT

firefox-devtools-mcp

129

mozilla/firefox-devtools-mcp

Plugin Claude Code ✓ vendor

Bundles 5 skills, 2 agents · 222 tokens together

Control Firefox for browsing, web testing, and debugging. Fill forms, capture network and console activity, take screenshots, run scripts, and profile performance. Supports Android devices.

not rated 553 +22 changed 2d ago A tokens not measured

bug-hunter

130

codexstar69/bug-hunter

Skill Claude CodeCodex

Precision-first adversarial bug hunting for runtime, logic, data, concurrency, and security defects. Uses deterministic risk triage, evidence-bounded retrieval, Hunter/Skeptic/Referee review, optional hybrid verification, and explicit immutable Fixer scope. Scan-only and single-pass by default; complete-coverage…

not rated 549 +8 changed 7d ago A 105 tokens original MIT

flounder

131

adshao/flounder

Skill Claude CodeCodex

Operates Flounder, an autonomous white-hat security auditor. Use when a user asks for a security audit, bug-bounty review, vulnerability investigation, or exploit proof for a public-source or authorized repository, source tree, package, smart contract, Solidity/EVM project, ZK or proof-system code, deployed address…

not rated 526 +1 changed 1mo ago A SkillSpector: warn 202 tokens AGPL-3.0

kolo

132

koloai/kolo

Plugin Claude Code

Bundles 1 skill · 119 tokens together

Kolo is a text-based Python debugger for AI agents. Capture every executed function, return value, local variable, HTTP request, and SQL query into greppable trace files.

not rated 525 6mo ago A tokens not measured

skydoves/compose-performance-skills

Skill Claude CodeCodex

Use this skill to run an end-to-end Jetpack Compose performance audit when the symptom is broad ("the app feels sluggish", "scroll is rough everywhere", "we're starting a perf sprint", "what should we fix first?"). Orchestrates the four-phase Measure → Diagnose → Fix → Verify loop by sequencing the 25 focused skills…

not rated 524 +2 4mo ago A SkillSpector: pass 214 tokens original Apache-2.0

nudgebee/nudgebee

Agent Claude Code

Use this agent when you need to debug and fix failing Playwright tests.

not rated 520 +1 yesterday A 20 tokens

memtrace-skills

135

syncable-dev/memtrace-public

Plugin Claude Code

Bundles 27 skills, 4 commands · 2,947 tokens together

Memtrace skills for codebase exploration, code search, relationship analysis, temporal evolution, blast radius impact, code quality, graph algorithms, API topology, GitHub PR code review, multi-agent fleet coordination (branch-scoped intents, conflict classification, and agent-judged Class C resolution), and…

not rated 511 +3 yesterday A tokens not measured

Lingtai-AI/lingtai

Skill Claude CodeCodex

Nested lingtai-dev-guide reference for deep, trigger-gated provenance and lifecycle diagnosis during a source/venv/interpreter or TUI-binary cutover, for changed or failing MCP source, or when a runtime mismatch is suspected. Use only the matching import/distribution/editable/HEAD, binary, MCP-source, live-object…

not rated 510 +2 changed 1mo ago A SkillSpector: pass 100 tokens original Apache-2.0

vet

137

imbue-ai/vet

Skill Claude CodeCodex

Run vet immediately after ANY logical unit of code changes. Do not batch your changes, do not wait to be asked to run vet, make sure you are proactive.

not rated 502 +13 1mo ago B Socket: passSnyk: pass 35 tokens AGPL-3.0

smell

138

smallnest/pigo

Skill Claude Code

Detect software architecture bad smells, algorithmic complexity hotspots, and anti-patterns in a codebase. Produces a detailed markdown report identifying violations of architectural principles, design patterns, code quality, and performance complexity. Triggers on: smell, code smell, architecture smell, find…

not rated 490 +4 1mo ago A SkillSpector: pass 97 tokens original MIT

ast-grep

139

ast-grep/ast-grep-mcp

Cursor rule Cursor

Your task is to help users to write ast-grep rules to search code. User will query you by natural language, and you will write ast-grep rules to search code.

not rated 489 +3 yesterday A 0 tokens original MIT

ast-deobfuscate

140

zhizhuodemao/ai-reverse-toolkit

Skill Claude Code

A tool-assisted process for making deliberately hard-to-read JavaScript easier to understand. It uses Babel, a JavaScript parsing and code-generation toolkit, to decode strings, simplify expressions, remove unused code, and restore control flow when applicable.

not rated 472 +2 7mo ago A 33 tokens original MIT

wispterm-diagnostics

141

xuzhougeng/wispterm

Skill Codex

Use when a user wants to report, troubleshoot, or collect context for a WispTerm issue, including crashes, rendering/DPI glitches, high CPU, keyboard/input bugs, selection/copy/scrolling, SSH/SCP failures, SSH image preview failures, HTML preview/browser panel failures, SSH disconnects such as…

not rated 466 +4 3d ago A SkillSpector: warn 88 tokens original MIT

umodel

143

alibaba/UnifiedModel

Plugin Claude Code ✓ vendor

Bundles 3 skills · 533 tokens together

Use UModel from your agent: read entities, relationships, topology, and the model itself; discover and follow entity-linked RunbookSet Skills; and run model-guided root-cause analysis. Bundles three UModel skills.

not rated 450 +8 2d ago A tokens not measured

modiqo/cliare

Skill Claude CodeCodex

Use when reviewing a CLIARE measurement artifact directory, explaining score changes, triaging issues, finding evidence, or proposing CLI remediation work from artifact-map.json, scorecard.json, issues.json, command-index.json, condition-dictionary.csv, shape.json, and evidence.jsonl.

not rated 441 +22 3mo ago A SkillSpector: pass 62 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: