Mixard
UserCurated plugin marketplace for Claude Code: 80 knowledge skills + 23 subagents, <10% keep rate from 1000+ reviewed. Markdown-only, no executable code.
Categories
Indexed Skills (50)
freshness-sweep
Monthly staleness check for version-fragile skills - verify pinned versions and APIs against current releases via web search, file outdated-info issues. Use when asked to check pack freshness or when a scheduled sweep fires.
agent-payment-x402
Use when adding x402 payment execution to AI agents - paying 402-gated APIs, enforcing per-task spending budgets, or charging agents for an API. Covers the agentwallet-sdk MCP server (Base), OKX Agent Payments Protocol (X Layer, eip155:196), seller SDK doc locations per language, and fail-closed budget enforcement.
angular-developer
Use when writing modern Angular (v19-v21+) code - Signal Forms, linkedSignal, resource/httpResource, effect/afterRenderEffect, native CSS animations (animate.enter/leave), Angular Aria headless components, and the Angular CLI MCP server. Covers version-gated APIs and gotchas that changed after Angular 19.
apple-foundation-models
Use when integrating Apple's on-device LLM via the FoundationModels framework (iOS 26+). Covers SystemLanguageModel availability cases, LanguageModelSession, @Generable/@Guide guided generation, PartiallyGenerated snapshot streaming, tool calling, and the 4096-token context limit.
bun-runtime
Use when running, testing, or deploying projects with Bun, or migrating from Node. Covers the bun.lock vs bun.lockb version change, Bun.serve/Bun.file/bun:test APIs, key CLI flags, Node compatibility, and Vercel setup.
claude-devfleet
Use when orchestrating parallel Claude Code agents via the Claude DevFleet MCP server - planning projects into mission DAGs, dispatching agents in isolated git worktrees, monitoring progress, and reading structured reports. Covers exact tool signatures, the auto_dispatch draft-status gotcha, and concurrency limits.
clickhouse
Use when designing ClickHouse schemas or queries. Covers MergeTree engine selection, State/Merge aggregate combinators, materialized view patterns, system.query_log and system.parts introspection, and data type / insert gotchas.
codehealth-mcp
Use when gating refactors, commits, or PRs on structural code health via the CodeScene MCP server (@codescene/codehealth-mcp). Covers the MCP config, the four standalone-mode tools, platform-only tools to avoid, and how to interpret 1-10 Code Health scores.
cpp-core-guidelines
Use when writing, reviewing, or refactoring modern C++ (C++17/20/23). Covers C++ Core Guidelines rule IDs with compact examples (P/I, F, C, R, ES, E, Con, CP, T, SL, Enum, SF/NL, Per) plus GoogleTest/CTest wiring, coverage, and sanitizer flags.
database-migrations
Use when writing or reviewing schema migrations. Covers zero-downtime Postgres patterns (concurrent indexes, instant defaults, expand-contract) and tool-specific CLI workflows and gotchas for Prisma, Drizzle, Kysely, Django, TypeORM, and golang-migrate.
defi-amm-security
Use when writing or auditing Solidity AMMs, LP vaults, or swap/deposit/withdraw flows. Covers vulnerable-vs-hardened pairs for reentrancy/CEI, donation-inflation share math, TWAP oracles, slippage and deadlines, SafeERC20/Ownable2Step/FullMath, and slither/echidna/forge fuzz commands.
evm-gotchas
Use when reading ERC-20 balances, pricing tokens, or hashing Ethereum data in JS/TS/Python/Solidity. Covers per-chain token decimal drift with runtime decimals() lookup and WAD normalization, and the Node sha3-256 vs Keccak-256 mismatch with correct ethers/viem/web3 APIs.
fal-ai-media
Use when generating images, video, or audio via the fal.ai MCP server. Covers MCP config, the tool set, model app_ids with per-model parameter schemas (Nano Banana, Seedance, Kling, Veo 3, CSM-1B, ThinkSound), and cost-estimate call shapes.
ffmpeg-media-recipes
Use when cutting, reframing, or preprocessing video/audio with FFmpeg, or generating voiceover via the ElevenLabs API. Covers segment extraction, concat, loudnorm parameters, scene and silence detection, aspect-ratio crop formulas, and the ElevenLabs TTS endpoint.
flox-environments
Use when creating reproducible cross-platform (macOS/Linux) dev environments with Flox, or when a project mentions .flox/, manifest.toml, or flox activate. Covers the exact manifest.toml schema ([install], [vars], [hook], [profile], [services], [include], [options]), version pinning, pkg-group/priority conflict resolution, per-language recipes, and CLI commands.
free-tier-scraper-apis
Use when building zero-cost scraping or data-enrichment pipelines on free API tiers. Covers Gemini free-tier model IDs and rate limits, the generativelanguage REST endpoint and payload, Notion API property JSON shapes, model fallback, and scraping-method choice.
gget
Use when doing quick bioinformatics lookups across genomic reference databases with the gget CLI or Python package — finding Ensembl IDs, gene metadata, sequences, BLAST/BLAT searches, enrichment, or protein-structure references. Covers the module set, CLI/Python call shapes, exact flags, and install workflow.
html-slides
Use when building a self-contained HTML presentation deck. Covers a viewport-safe CSS base with clamp() scaling and short-height breakpoints, slide density limits, a catalog of 12 visual presets (font pairings, palettes, signatures), and the negated-CSS-function gotcha.
ios-icon-gen
Use when generating PNG icon imagesets (1x/2x/3x plus Contents.json) for Xcode asset catalogs, from SF Symbols (macOS, offline) or the Iconify API (275k+ open-source icons). Covers the bundled generator scripts, Iconify collection prefixes, and common SF Symbol names.
ios26-liquid-glass
Use when implementing the iOS 26 Liquid Glass material in SwiftUI, UIKit, or WidgetKit. Covers glassEffect variants, GlassEffectContainer, glassEffectID/glassEffectUnion morphing, UIGlassEffect/UIGlassContainerEffect, scroll edge effects, and widget accented rendering.
jira-integration
Use when reading, searching, commenting on, or transitioning Jira issues via MCP or the REST API v3. Covers mcp-atlassian config, tool names, curl examples, the ADF comment schema, JQL patterns, and error troubleshooting.
kotlin-exposed
Use when building database access with JetBrains Exposed 1.0.0. Covers newSuspendedTransaction, DSL vs DAO styles, upsert/batchInsert, a custom jsonb ColumnType, UUIDTable definitions, HikariCP and Flyway wiring, H2 test setup, and pinned Gradle coordinates.
kotlin-ktor
Use when building Ktor 3.x HTTP servers. Covers install blocks for ContentNegotiation, StatusPages, CORS, and WebSockets, JWT verifier configuration, Koin DI wiring, routing DSL, and testApplication integration tests including authenticated routes.
mailtrap-email-integration
Use when implementing transactional email sending via the Mailtrap Email API or debugging non-delivery in dev/staging. Covers the exact production and sandbox send endpoints, Bearer auth, request payload shape, and the sandbox-vs-production routing pattern.
mcp-server-configs
Use when configuring MCP servers in .claude.json or .mcp.json. Covers exact launch commands, package names, pinned versions, and hosted HTTP endpoints for common MCP servers (Jira, GitHub, Supabase, Playwright, fal.ai, Cloudflare, Vercel, and others).
n8n-selfhosted-ops
Use when operating a self-hosted n8n instance (npm/systemd, no Docker) - importing workflows via CLI without an API key, exposing env vars to workflow expressions, credential re-linking after import, and the Telegram human-in-the-loop pattern that avoids the broken sendAndWait node. Verified on n8n 2.8.
nuitka-windows-packaging
Use when packaging Python GUI apps into small, fast Windows installers with Nuitka standalone mode plus Inno Setup. Covers verified Nuitka flag recipes (anti-bloat, module exclusion, console-mode), 32-bit vs 64-bit size tradeoffs, dist slimming rules, DLL size analysis, Inno Setup LZMA2 template, and deprecated-flag gotchas.
nutrient-api
Use when converting, OCRing, extracting, redacting, watermarking, signing, or form-filling documents with the Nutrient DWS API. Covers the /build endpoint, instructions JSON schemas, redaction presets, OCR language codes, and the MCP server config.
nuxt4-patterns
Use when building or debugging Nuxt 4 apps with SSR, hybrid rendering, or data fetching. Covers routeRules (swr/isr/prerender), hydration-safe useFetch/useAsyncData, Lazy components, hydrate-on-visible, defineLazyHydrationComponent, and SSR gotchas.
perl-modern
Use when writing, reviewing, or securing Perl 5.32+ code. Covers modern idioms (signatures, postfix deref, Moo, class/field, try/catch), taint mode and injection-safe patterns, and Test2::V0 testing with prove and Devel::Cover.
playwright-demo-videos
Use when recording a polished UI demo/walkthrough video of a web app with Playwright. Covers cursor and subtitle overlay injection, moveAndClick/typeSlowly helpers, pacing values, video output handling, and recording gotchas.
pm2-node-services
Use when running dev servers or Python services under PM2, especially on Windows. Covers the .cjs config requirement, exact framework bin paths for Vite/Next/Nuxt, the Python child-process wrapper, and process-list persistence.
postgres-tips
Use when writing or tuning PostgreSQL. Covers the RLS initPlan wrap trick, SKIP LOCKED job queues, diagnostic queries for unindexed FKs and bloat, index type selection, and upsert patterns.
prisma-patterns
Use when writing or reviewing Prisma ORM code in TypeScript backends — schema design, query optimization, transactions, pagination, and serverless deployment. Covers critical traps like updateMany returning a count not records, the 5s interactive $transaction timeout, migrate dev resetting the DB, @updatedAt skipped on bulk writes, P-code error handling, and serverless connection exhaustion.
pubmed-database
Use when searching biomedical literature via PubMed or NCBI E-utilities — MeSH queries, PMID lookup, abstract/citation retrieval, or API-backed literature monitoring. Covers PubMed field tags, publication-type and date filters, MeSH subheading syntax, and the E-utilities REST endpoints with a working Python request pattern.
react-performance
Use when writing, reviewing, or refactoring React 18/19 and Next.js code for performance. Organizes 70+ rules across 8 priority categories — eliminating waterfalls, bundle size, server-side, client fetching, re-render, rendering, JS micro-perf, and advanced patterns — with concrete correct/incorrect pairs and version-specific APIs (Next.js 15 after(), React 19 Activity, useEffectEvent, optimizePackageImports).
regex-llm-hybrid
Use when parsing structured, repetitive text (quizzes, forms, invoices) and deciding between regex and LLM extraction. Covers the regex-first pipeline with confidence scoring and cheap-LLM fallback, with production cost/accuracy numbers.
remotion
Use when writing or reviewing Remotion code (video creation in React). Covers compositions, frame-driven animation with interpolate/spring, calculateMetadata, media embedding, captions, transitions, Mediabunny metadata/frame extraction, fonts, charts, 3D, Lottie, and Tailwind.
swift-concurrency-6-2
Use when writing or migrating Swift 6.2 concurrency code. Covers SE-0461/SE-0466 semantics (async stays on the caller, MainActor default inference), @concurrent offloading, isolated conformances, and Xcode 26 build settings.
tinystruct-patterns
Use when working on any project built on the tinystruct Java framework — creating Application classes, @Action-mapped routes, HTTP/CLI dual-mode handling, JSON with Builder/Builders, database persistence with AbstractData, POJO generation, Server-Sent Events, file uploads, and MCP tools/servers. Covers exact APIs, annotation modes, and the dispatcher CLI that a model would otherwise guess.
uncloud
Use when managing an Uncloud cluster with the `uc` CLI — deploying services, configuring Caddy ingress, adding static proxy routes for non-cluster devices, publishing ports, scaling, inspecting logs, or managing machines and volumes. Covers the CLI command surface, Compose extensions (x-ports, x-caddy, x-machines), port-publishing syntax, and internal service DNS.
uspto-database
Use when querying official US patent or trademark records — granted patents, pre-grant publications, application status, assignments, or trademark status via USPTO systems. Covers the PatentSearch (PatentsView) API v1 with its JSON query DSL and X-Api-Key header, TSDR trademark retrieval, ODP file-wrapper search, and the environment-variable auth conventions.
videodb
Use when writing code against the VideoDB Python SDK (videodb package) for video upload, transcription, moment search, timeline editing, transcoding, reframing, generative media, RTSP/RTMP live streams, or desktop capture. Covers exact method signatures, enums, exception handling gotchas, and the WebSocket event workflow.
wcag22-reference
Use when implementing or auditing accessibility on Web, iOS, or Android. Covers WCAG 2.2 success criteria (numbers, names, levels), contrast ratios, target sizes, and the cross-platform mapping for labels, hints, roles, and live regions.
windows-desktop-e2e
Use when writing or debugging E2E tests for Windows native desktop apps (WPF, WinForms, Win32/MFC, Qt) with pywinauto and Windows UI Automation (UIA). Covers per-framework UIA reliability, testability setup, the pywinauto locator/wait/action API, Qt version-specific gotchas (QT_ACCESSIBILITY, Qt5/Qt6 window class names), screenshot fallback with DPI rules, and Job Object process containment.
x-api
Use when interacting with the X (Twitter) API programmatically - posting tweets, threads, media, reading timelines, or searching. Covers v2 endpoints, the v1.1 media upload endpoint, OAuth 1.0a vs Bearer token rules, reply/thread payload shapes, rate-limit headers, and error handling.
release
Release procedure for fable-pack - validate, bump plugin versions, changelog, push, refresh local plugin cache. Use whenever committing content changes to plugins/ in this repo.
laravel-plugin-discovery
Use when finding or evaluating Laravel packages (maintenance health, Laravel/PHP version compatibility, vendor reputation) via the free LaraPlugins.io MCP server. Covers the MCP endpoint config and the exact SearchPluginTool / GetPluginDetailsTool parameter schemas and filter values.
manim-explainers
Use when building short animated technical explainers (graphs, architectures, system diagrams) with Manim. Covers render commands and quality flags, scene structure notes, and a reusable network-graph scene starter.
nextjs-turbopack
Use when working on or reviewing Next.js 16+ projects. Covers the proxy.ts middleware rename (do not flag it as misnamed), Turbopack-by-default dev behavior, filesystem caching, and when to fall back to webpack.
Bio shown is the top-scored skill's repo description as a fallback — real GitHub bios land in a future update.