Skills directory · page 28

Use when considering a free calculator, grader, checker or generator as a marketing asset, before building it. Estimates traffic, leads and ROI with tool_roi_estimator.py and scores the idea for search demand and fit.

Use for /c-level-agents:freeze, or to put a cooling-off lock on an irreversible decision made under pressure.

Audit an entire repository with fresh eyes for correctness errors, bugs, omissions, duplication, inconsistencies, stale, duplicate, or tautological tests, stale comments, and other mistakes supported by evidence. Fix every safe issue and verify the result.

Accessibility patterns for React and Next.js — semantic HTML, ARIA attributes, form labeling, keyboard navigation, focus management, and screen reader support. Use when building or reviewing forms, modals, dropdowns, tooltips, or tabs, fixing a11y lint or code-review findings, or wiring up keyboard navigation and focus management.

Use when creating or substantially redesigning web interfaces, landing pages, dashboards, components, or other frontend UI where visual direction and implementation quality matter. Produces subject-specific art direction, accessible code, and rendered visual verification.

Set an ECC-specific frontend design direction for production UI work. Use when building or improving websites, dashboards, applications, components, landing pages, visual tools, or any web UI that needs stronger product-specific design judgment.

Review and create distinctive, production-grade frontend interfaces with high design quality and design system compliance. Evaluates using three pillars: frictionless insight-to-action, quality craft, and trustworthy building. USE FOR: PR reviews, design reviews, accessibility audits, design system compliance checks, creative frontend design, UI code review, component reviews, responsive design checks, theme testing, and creating memorable UI. DO NOT USE FOR: Backend API reviews, database schema reviews, infrastructure or DevOps work, pure business logic without UI, or non-frontend code.

Frontend development guidelines for React/TypeScript applications. Modern patterns including Suspense, lazy loading, useSuspenseQuery, file organization with features directory, MUI v7 styling, TanStack Router, performance optimization, and TypeScript best practices. Use when creating components, pages, features, fetching data, styling, routing, or working with frontend code.

Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.

React, Next.js, state yönetimi, performans optimizasyonu ve UI en iyi uygulamaları için frontend geliştirme kalıpları.

Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices. Use when building or reviewing React or Next.js components, state, or render performance.

Patrones de desarrollo frontend para React, Next.js, gestión de estado, optimización de rendimiento y buenas prácticas de UI.

Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices. Use when building or reviewing React or Next.js components, state, or render performance.

Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when the user wants to build a presentation, convert a PPT/PPTX to web, or create slides for a talk/pitch. Helps non-designers discover their aesthetic through visual exploration rather than abstract choices.

Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when the user wants to build a presentation, convert a PPT/PPTX to web, or create slides for a talk/pitch. Helps non-designers discover their aesthetic through visual exploration rather than abstract choices.

Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when the user wants to build a presentation, convert a PPT/PPTX to web, or create slides for a talk/pitch. Helps non-designers discover their aesthetic through visual exploration rather than abstract choices.

Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when users want to build presentations, convert PPT/PPTX to web format, or create slides for talks/pitches. Helps non-designers discover their aesthetic through visual exploration rather than abstract choices.

Document frontend data needs for backend developers. Use when frontend needs to communicate API requirements to backend, or user says 'backend requirements', 'what data do I need', 'API requirements', or is describing data needs for a UI.

Build dark-themed React applications using Tailwind CSS with custom theming, glassmorphism effects, and Framer Motion animations. Use when creating dashboards, admin panels, or data-rich interfaces with a refined dark aesthetic.

F# testing patterns with xUnit, FsUnit, Unquote, FsCheck property-based testing, integration tests, and test organization best practices. Use when writing F# tests with xUnit, FsUnit, Unquote, or FsCheck.

Use when asked for a full-page or long screenshot of a web page. Captures SPA scroll containers, lazy images and very tall pages through Chrome DevTools Protocol with no extra dependencies.

Game art principles. Visual style selection, asset pipeline, animation workflow.

Game audio principles. Sound design, music integration, adaptive audio systems.

Find 10x product opportunities and high-leverage improvements. Use when user wants strategic product thinking, mentions '10x', wants to find high-impact features, or says 'what would make this 10x better', 'product strategy', or 'what should we build next'.

Game design principles. GDD structure, balancing, player psychology, progression.

Game development orchestrator. Routes to platform-specific skills based on project needs.

Use when checking reward-route support, choosing a game's pack contents or price, designing automated VIP tier milestones and selector chests from progression cliffs, verifying item template table container type payloads, auditing transitive reward graphs and recursive containers before reusing or repricing items, governing server-wide public campaign redemption codes (limited, unlimited, time-limited) with universal equal treatment and zero single-player codes, comparing value per unit of money, raising a cap or adding a growth line, setting a gift or gift budget, preventing positional leaderboard spillover, checking virtual-currency inflation, drafting or reviewing VIP thanks, rank/tier wording or care-mail titles/bodies, or diagnosing why game sales fell. Use ambassador for relationship conversations, customer-support for an individual entitlement or refund case, challenge for general product or commercial strategy, deliver-and-verify to implement a change, and clear-writing for unr

GAN-inspired Generator-Evaluator agent harness for building high-quality applications autonomously. Based on Anthropic's March 2026 harness design paper. Use when a feature should be built autonomously through generator and evaluator iteration until it clears a quality bar.

Scan a Paperclip user's Mine inbox, classify reversible archive candidates, request checkbox confirmation, and archive only accepted selections. Use when asked to garden, clean up, prune, or tidy a Paperclip inbox without changing issues, branches, or workspaces.

Reports PASS/FAIL with measured numbers on a plan task's acceptance gate, or audits all gates. Use when the user asks whether a gate passed. Not for writing code.

PreToolUse fact-forcing gate that denies the first Edit/Write/Bash (including MultiEdit and NotebookEdit) attempt until the agent presents concrete facts (importers, data schemas, verbatim user instruction), then allows retry; A/B-tested at +2.25 quality points. Use when enabling or configuring the GateGuard hook, exempting paths via env vars, or handling first-touch denials.

A fact-forcing gate that blocks Edit/Write/Bash, including MultiEdit, and requires concrete investigation of importers, data schemas, and user instructions before allowing action. Measurably improves output quality by 2.25 points compared with ungated agents.

Use for /c-level-agents:gc-review, or to challenge a term sheet, customer MSA, IP assignment or regulatory exposure before signing.

Use gcal, a Google Calendar CLI from WireCat, from an agent — check the owner's Google sign-in, find a command, run it with the owner's profile, read JSON answers. Use when a task needs the owner's Google Calendar — sync the calendars, then list, show and search events, their people and Drive files offline, prepare a meeting brief or a daily or weekly digest from the local store, create, change or delete an event, answer an invitation, or call any Calendar API method through gcal api.

Design, deploy and cut the cost of Google Cloud setups: Cloud Run, GKE, Functions, Cloud SQL, BigQuery, moving to GCP. Use whenever the user asks how to host or run something on GCP, why their GCP bill is high, or plans a GCP migration.

Specialized skill for building production-ready serverless applications on GCP. Covers Cloud Run services (containerized), Cloud Run Functions (event-driven), cold start optimization, and event-driven architecture with Pub/Sub.

Use for /compliance-os:gdpr-audit-prep, or before a GDPR review, post-breach audit or DPA investigation.

Use for GDPR or DSGVO work: scanning a codebase for privacy risks, writing a DPIA or tracking data subject requests against the Art. 12(3) deadline. Runs gdpr_compliance_checker.py, dpia_generator.py and data_subject_rights_tracker.py; final calls go to the DPO.

Senior GDPR/DSGVO expert and internal/external auditor for data protection compliance. Provides EU GDPR and German DSGVO expertise, privacy impact assessments, data protection auditing, and compliance verification. Use for GDPR compliance assessments, privacy audits, data protection planning, and regulatory compliance verification.

Use when the user asks to run Gemini CLI for code review, plan review, or big context (>200k) processing. Ideal for comprehensive analysis requiring large context windows. Uses Gemini 3 Pro by default for state-of-the-art reasoning and coding.

Guides the usage of the Gemini API on Agent Platform with the Google Gen AI SDK for enterprise AI applications. Covers SDK usage (Python, JS/TS, Go, Java, C#), capabilities like Live API, tools, multimedia generation, caching, and batch prediction.

Query NCBI Gene via E-utilities/Datasets API. Search by symbol/ID, retrieve gene info (RefSeqs, GO, locations, phenotypes), batch lookups, for gene annotation and functional analysis.

Legal review of contracts and term sheets (MSA, SaaS, NDA, DPA, employment), IP strategy and regulatory exposure (HIPAA, GDPR, FDA, fintech). Use whenever the user asks if a contract is risky or what to watch in a deal; not a substitute for licensed counsel.

Use when asked to write Playwright or e2e tests for a page, component or feature ('write tests', 'add tests for', 'e2e test').

Generate or edit images using AI models (FLUX, Gemini). Use for general-purpose image generation including photos, illustrations, artwork, visual assets, concept art, and any image that isn't a technical diagram or schematic. For flowcharts, circuits, pathways, and technical diagrams, use the scientific-schematics skill instead.

Repair repository-owned wrappers and scheduled routines without confusing source correctness with deployment. Use when a generated file misbehaves and the fix belongs in its template or generator, or when a reviewed patch must be landed and then materialized into a live runtime. Not for editing generated output by hand.

Commercial-grade Python installer expert for Windows: Nuitka extreme compilation, dist slimming, DLL footprint analysis, and Inno Setup packaging to ship the smallest, fastest installers. Use when a Python app must ship as a minimal, fast-starting Windows installer; not for basic script-to-exe conversion. Chinese triggers: Nuitka extreme optimization, Python commercial packaging, extreme Python compilation, dist slimming, DLL analysis, minimal installer, fastest startup, commercial-grade packaging style

This skill should be used when working with genomic interval data (BED files) for machine learning tasks. Use for training region embeddings (Region2Vec, BEDspace), single-cell ATAC-seq analysis (scEmbed), building consensus peaks (universes), or any ML-based analysis of genomic regions. Applies to BED file collections, scATAC-seq data, chromatin accessibility datasets, and region-based genomic feature learning.

Access NCBI GEO for gene expression/genomics data. Search/download microarray and RNA-seq datasets (GSE, GSM, GPL), retrieve SOFT/Matrix files, for transcriptomics and expression analysis.

Generative Engine Optimization for AI search engines (ChatGPT, Claude, Perplexity).