Claude Skills by akillness

Make the agent solve coding tasks with the least code that remains correct. Before writing code, walk the Ponytail ladder: skip what need not exist, then prefer stdlib, native platform features, already-installed dependencies, one line, and only then the minimum custom code. Use when the user asks for ponytail mode, less code, YAGNI, anti-bloat, minimal code, an over-engineering review, a current-diff delete-list, a whole-repo bloat audit, or a `ponytail:` tech-debt harvest. Keep validation, ...

Build real deck artifacts when the user needs editable slides, not just prose: investor decks, roadmap/QBR decks, launch decks, architecture/demo decks, workshop/training decks, and game pitch or milestone decks. Use when the job is to choose one deck mode, one smallest useful artifact packet, and one honest handoff surface (HTML review, PPTX, PDF, Google Slides, or Figma Slides). Triggers on: presentation, slide deck, slides, pitch deck, roadmap deck, investor deck, launch deck, architecture...

Fast, accurate, and comprehensive multiline text measurement and layout library for JavaScript/TypeScript — without DOM reflow. Use when the user needs to calculate paragraph heights, line counts, manual line layouts (text flowing around floated images), or rich text rendering (emoji, CJK, RTL) on DOM, Canvas, or SVG targets. Covers npm install, core API (prepare/layout, prepareWithSegments/layoutWithLines), and options (whiteSpace, wordBreak, letterSpacing). Triggers on: pretext, text measur...

Discover and apply curated prompts from the prompts.chat collection to optimize AI interactions. Use when refining prompt engineering, finding domain-specific prompt templates, improving response quality, or building prompt-based workflows. Triggers on: prompt optimization, prompt templates, prompt engineering, prompt library, curated prompts, prompt discovery, and AI prompt patterns.

Build typed LLM applications with PydanticAI: schema-constrained outputs, tool integration, validation, retries, and deterministic downstream handoffs. Use when users need reliable structured outputs instead of free-form text generation.

Run measurement-led React and Next.js performance audits for waterfalls, bundle size, RSC/server-client boundaries, hydration mismatch, rerender churn, script cost, and slow page interactions. Use when the user needs help diagnosing or refactoring a slow React UI, App Router route, heavy client component, or Next.js page with excess JavaScript or weak client/server boundaries. Triggers on: React perf, Next.js perf, waterfall, bundle size, hydration, rerender, client component too heavy, slow ...

Integrate, customize, and contribute to react-bits (github.com/DavidHDev/react-bits) — the largest and most creative library of animated React components. It covers Vite, Tailwind CSS v4, Three.js/Fiber, GSAP, and Framer Motion integrations. Use when the user asks about react-bits, animated React components, jsrepo registry, or contributing new animated components to the react-bits repository.

Capture exact React element context from a live browser UI and hand it to an AI coding agent as component name, source file path, line number, and HTML. Use when the user wants `react-grab`, element-context copy, component-source lookup from the browser, clipboard-to-agent React debugging, or MCP-backed element selection for React apps. Not for generic browser automation or login/session reuse (`browser-harness`, `playwriter`), broad UI annotation/review (`agentation`), React performance audi...

Compatibility alias for `video-production` when a prompt, setup surface, or legacy workflow explicitly asks for Remotion video production. Use when the request names Remotion, React-based video rendering, compositions, scene components, or a legacy `remotion-video-production` catalog entry, but the real workflow is still the canonical programmable-video lane. Prefer `video-production` for general use. Triggers on: remotion-video-production, Remotion render pipeline, React video composition, m...

Draft and revise ML, CV, NLP, and systems research papers with strong claim-evidence flow, reviewer-aware structure, and submission-ready section planning. Use when the user needs help with an abstract, introduction, related work, method, experiments, ablations, discussion, figures/tables, checklist coverage, or rebuttal / response-letter writing for a paper. Triggers on: research paper, academic paper, ML paper, NeurIPS paper, ICLR paper, CVPR paper, experiments section, ablation plan, relat...

Routing-first responsive layout strategy and verification for web interfaces. Use when the main job is classifying whether the failure is page-shell adaptation, reusable component/container behavior, dense-data or toolbar pressure, responsive media, or reflow verification — then turning vague “breaks on mobile” requests into one concrete strategy packet. Route component API design and system-wide breakpoint/token governance to `design-system`, and accessibility remediation plus broad UI audit...

Generate, convert, preview, and integrate retro game sound effects with raysan5/rfxgen. Use when a user needs coin, laser, explosion, power-up, hit, jump, or blip SFX; wants `.rfx` parameters converted to WAV/raw/C headers; needs batch CLI generation; or must build and troubleshoot rFXGen. Triggers on: rFXGen, rfxgen, sfxr, chiptune SFX, .rfx, procedural game sound, or sound preset.

Install, initialize, verify, and troubleshoot RTK (Rust Token Killer) for AI coding agents. Use when you need to reduce shell-command token output, confirm that the correct `rtk` binary is installed, choose between Homebrew, install.sh, or Cargo installation, wire `rtk init` for Claude Code, Codex, Gemini CLI, Cursor, Copilot, Windsurf, Cline, or OpenCode, or use compact wrappers such as `rtk git status`, `rtk read`, `rtk grep`, `rtk test`, `rtk lint`, and `rtk gain`. Triggers on: rtk, rust t...

Create educational exercise directories compliant with pnpm ai-hero-cli internal lint

Audit, inventory, route, selectively install, and safely refresh the K-Dense-AI/scientific-agent-skills collection for scientific packages, databases, lab integrations, research methods, and publication workflows. Use when the user names Scientific Agent Skills, K-Dense scientific skills, or that repository; needs the correct upstream sub-skill; wants a pinned subset installed or refreshed; or needs provenance, license, collision, and security review before adoption. Inspect the real skill tr...

A comprehensive reference of benchmarks for evaluating large language models on scientific reasoning and discovery.

Fetch live web pages for agents through ScrapingAnt's hosted MCP server (`https://api.scrapingant.com/mcp`) with headless-Chrome rendering, rotating datacenter/residential proxies, Cloudflare and anti-bot handling, and LLM-ready Markdown output. Use when a plain fetch/WebFetch is blocked (403/429, Cloudflare challenge), when a JavaScript/SPA page returns an empty shell, when geo-specific content is needed, or when standing up a local browser scraper costs more than the task is worth. Triggers...

Route web-scraping work into the lightest workable Scrapling mode instead of defaulting to a browser. Use when the user needs HTML extraction, JS-rendered page retrieval, protected-target escalation, quick CLI scraping, agent-facing MCP access, or a larger crawl with Scrapling spiders. Triggers on: scrapling, scrape website, crawl site, adaptive scraping, selector drift, stealthy fetch, browser scraping, scrape to markdown, scrapling mcp, scrapling spider, research harvesting, literature scra...

Routing-first skill for web/application/API hardening. Use when the main job is classifying which security layer is missing — browser/perimeter policy, session/cookie/CSRF, abuse controls, validation/unsafe execution, secrets/runtime config, or verification — and turning vague OWASP/security asks into one concrete hardening brief. Route auth-stack choice to `authentication-setup`, schema work to `database-schema-design`, code-level bug fixing to `debugging` / `code-review`, and environment wi...

Fast, accurate code search for AI agents using ~98% fewer tokens than grep+read. Indexes any local or remote repository in under a second (~250ms on CPU, no GPU or API key needed). Supports natural-language and symbol queries, semantic similar-code discovery, and MCP server integration for Claude Code, Codex, Cursor, and OpenCode. Python library available for programmatic use. Triggers on: semble, code search, semantic code search, semble search, token-efficient search, find code, code search...

Route reusable skill-improvement work into one bounded repo-local ratcheting packet: ratchet eligibility, benchmark readiness, loop charter freeze, baseline scoring, one-change mutation, support-surface sync, or final keep/revert report. Use when an existing `SKILL.md`, SOP, prompt, or workflow doc may need sharper triggers, clearer instructions, better support files, or cleaner discovery wording and you want a frozen evaluation harness, append-only experiment logs, and explicit keep-or-rever...

Standardize and validate SKILL.md files against the Agent Skills specification (agentskills.io). Use when creating or rewriting a skill, auditing an existing skill for spec compliance, sharpening trigger descriptions, canonicalizing overlapping skills into a canonical skill plus compatibility alias, or checking whether derived discovery surfaces (`skills.json`, README/setup inventories, `SKILL.toon`, `SKILL.compact.md`) still match the live skill folders. In repo-root maintenance loops, prefe...

Generate, visually edit, and export beautiful HTML/CSS presentation decks with agents using slides-grab (NomaDamas, MIT) — the open-source Claude Design alternative and best harness + editor + linter for slides in Claude Code / Codex. One routing-first skill across Plan (agent drafts an outline), Design (each slide is a self-contained slide-XX.html), Edit (a pure-JS browser editor where you drag a bbox over any region and ask the agent to rewrite just that area, or hand-tweak text/size/bold),...

Audit, selectively adapt, install, route, and maintain the Korean solopreneur skill pack from bam-bam-2/solo-skills. Use when the user names solo-skills, bam-bam-2/solo-skills, its 26-skill collection, or `fleet.md`; wants a pinned inventory or selective install; needs to choose among its content, messaging, publishing, remote, media, or agent workflows; or needs to remove author-specific assumptions before adoption. Inspect frontmatter, support scripts, licenses, destination collisions, pers...

Drive Soup (`soup-cli`), a CLI-first tool for fine-tuning and post-training LLMs with one YAML config and one command — SFT, DPO/GRPO/ORPO/SimPO/KTO, QLoRA/DoRA/LoRA+, layer streaming for 4-8 GB GPUs, eval-gated training, and serving. Use when the user wants to `soup init`/`soup train` a model, pick a training method or quantization scheme, estimate cost/memory before training, fine-tune on a small local GPU, migrate a config from Axolotl/LLaMA-Factory/Unsloth, or serve/merge/push a trained a...

Run GitHub's Spec-Driven Development (SDD) workflow via the `specify` CLI — install spec-kit, initialize a project for one of 30+ AI coding agents (Claude Code, Copilot, Gemini, Cursor, Codex, Qwen, opencode, Kiro, etc.), and drive the constitution → specify → plan → tasks → implement command pipeline. Use when the user wants to bootstrap a Spec-Driven Development project, install `specify-cli`, generate executable specs before code, or invoke the `/speckit.*` slash commands (`/speckit.consti...

Facilitate sprint retrospectives, milestone postmortems, or iteration reviews that turn completed work into a few owned process improvements instead of another stale template ritual. Use when the user needs a retrospective mode, remote or hybrid facilitation plan, action-item follow-through reset, or help reviewing what the team should change after a sprint, release, milestone, or rough delivery cycle. Route backlog planning to `task-planning`, sizing to `task-estimation`, daily coordination ...

Turn messy daily-sync requests into one honest coordination-cadence packet: decide whether live-daily, async-daily, hybrid-daily, less-frequent syncs, or no recurring standup is justified, then pick the lightest standup mode that still catches blockers and handoffs. Use when the user needs a daily scrum, async check-in, board-walk, blocker-first sync, remote-team standup, launch- week cadence reset, or help fixing an overlong / low-signal standup. Route backlog planning to `task-planning`, si...

Choose the smallest viable React/fullstack state owner before comparing libraries. Use when the user needs to classify local UI state, shared subtree/Context state, URL or form state, server-state caches, or client workflow stores such as Zustand / Redux Toolkit / Jotai. Triggers on: global state, prop drilling, Context vs Zustand, Redux Toolkit vs Zustand, server state vs client state, React Router state management, optimistic updates, URL state, form state, and too much state in one store.

Turn Steam store-page, wishlist, demo, Next Fest, and launch-window ambiguity into one packet-first Steam launch brief. Use when an indie dev, small studio, founder-marketer, or publisher helper needs to decide whether the next move is a page-promise audit, wishlist-signal check, demo-readiness gate, event-timing workback, or launch-ops runbook — especially when they say "help my Steam page", "wishlists are weak", "is our demo ready", "should we do Next Fest", or "give me a Steam launch check...

A collection of Agent Skills for the Stitch MCP server: generate high-fidelity UI screens, create multi-page websites from a single prompt, produce DESIGN.md documentation, enhance vague UI prompts, convert designs to React/shadcn-ui components, and generate walkthrough videos via Remotion. Use when the user needs AI-assisted UI design generation, prompt refinement, or screen-to-code workflows. Triggers on: stitch, stitch-design, stitch-loop, enhance-prompt, react-components, remotion, shadcn...

Capture or repair reliable full-page screenshots for lazy-loaded, scroll-animated, Framer, WebGL/canvas, or reveal-heavy web pages. Use when full-page screenshots are blank, gray, white, sparse, show a tiny content strip, disagree with a working scroll video, or when article evidence/section crops must be derived from a trustworthy full-page image.

Install, configure, and operate Strix for AI-driven application security testing. Use when you need to run authorized vulnerability scans against local codebases, GitHub repositories, staging URLs, domains, or CI pipelines; configure Docker and LLM providers; choose quick, standard, or deep scan depth; or pass authenticated testing instructions to Strix. Triggers on: strix, ai pentest, vulnerability scan cli, appsec scan, bug bounty automation, strix ci, strix docker, strix scan mode, strix i...

Install and use Supabase Agent Skills (`supabase/agent-skills`) with AI coding agents. Covers install modes, skill selection, plugin path, verification, and safe fallback for direct Supabase CLI/database workflows.

Run a bounded cross-platform landscape scan before planning or implementation. Use when the real job is researching what exists, how people work around it, which solutions repeat, or how platform/tooling patterns map before deciding what to build. Produce reusable `.survey/{slug}/` artifacts, validate the artifact contract, and route planning or execution outward only after the survey is done.

Build reproducible developer environments for real projects: local toolchains, runtime versions, Docker Compose or dev containers, onboarding flows, local service parity, bootstrap scripts, and environment troubleshooting. Use when the user needs a repo to run consistently across machines, containers, or staged environments, even if they only say setup dev environment, onboarding, Docker, devcontainer, local parity, bootstrap, or make this runnable. This is the canonical broader environment-s...

Turn fuzzy work into one honest estimate packet by choosing the right sizing horizon, naming confidence and uncertainty, and separating discovery from delivery before anyone treats the number like a promise. Use when the user needs story points, t-shirt sizing, planning-poker prep, forecast-safe language, split-or-spike guidance, or cross-functional sizing across developer workflow, web/fullstack, product/ops, marketing/GTM, or game work. Route decomposition to `task-planning`, daily coordina...

Turn vague features, bug clusters, roadmap items, launch work, or playtest findings into one execution-ready planning packet by choosing the right packet type, separating discovery from delivery, and making blockers, dependencies, and the next move explicit. Use when the user needs backlog cleanup, feature slicing, sprint or milestone prep, release planning, or roadmap-to-delivery translation across developer workflow, web/fullstack, product/ops, marketing/GTM, or game work. Route sizing to `...

Red-green-refactor TDD using vertical slices — tests specify observable behavior through public interfaces

Write internal technical documentation for engineers and operators: technical specs, architecture docs, ADRs, runbooks, migration plans, and developer-facing implementation guides. Use when the main job is capturing a technical decision, system boundary, operating procedure, or rollout path for builders and maintainers. Triggers on: tech spec, design doc, architecture doc, ADR, runbook, migration guide, implementation guide, rollout doc, operational guide, and internal technical writing. End-...

Turn test-policy ambiguity into one packet-first validation brief. Use when the main job is deciding which gate is actually being shaped (merge, release, or scheduled), what evidence a change needs, how flaky or expensive suites should be handled, and whether the next owner is `backend-testing`, `debugging`, `code-review`, `deployment-automation`, `steam-store-launch-ops`, `game-ci-cd-pipeline`, `web-accessibility`, or `performance-optimization` instead of absorbing all test work here. Trigge...

Implement and debug Three.js motion with AnimationMixer, clips and actions, GLTF animation playback, skeletal rigs, morph targets, cross-fades, and frame-rate-independent procedural animation. Use when playing or blending model animations, driving bones or morphs, creating timeline motion, or fixing animation lifecycle and performance issues. Triggers on: Three.js animation, AnimationMixer, AnimationAction, AnimationClip, GLTF animation, skeletal animation, bones, morph targets, crossfade, pr...

Build and debug the Three.js scene foundation: renderer setup, cameras, scene graph, transforms, resize handling, color management, render loops, and resource disposal. Use when creating a Three.js scene, choosing a camera or renderer, fixing coordinate space or hierarchy bugs, or establishing a reliable WebGL canvas baseline. Triggers on: three.js scene, WebGLRenderer, PerspectiveCamera, OrthographicCamera, Object3D, scene graph, camera setup, resize canvas, render loop, coordinate system, t...

Build and optimize Three.js geometry with built-in primitives, BufferGeometry, BufferAttributes, indexed meshes, custom vertex data, lines and points, and instanced rendering. Use when creating meshes, editing vertices or UVs, generating shapes, reducing draw calls, or diagnosing geometry memory and culling behavior. Triggers on: Three.js geometry, BufferGeometry, BufferAttribute, vertices, indices, custom mesh, InstancedMesh, instancing, draw calls, line geometry, points, mesh optimization.

Implement and debug Three.js interaction with Raycaster, pointer and touch coordinate conversion, hover/selection state, camera controls, dragging, keyboard input, and world-to-screen projection. Use when picking objects, adding OrbitControls or PointerLockControls, handling mouse/touch input, or fixing interactive 3D behavior. Triggers on: Three.js interaction, Raycaster, raycast, picking, click mesh, hover, object selection, OrbitControls, drag controls, pointer events, touch controls.

Design and debug Three.js lighting with directional, point, spot, hemisphere, and area lights, shadow maps, image-based lighting, environment maps, light helpers, and performance budgets. Use when lighting a 3D scene, configuring shadows, setting up HDR illumination, matching a visual reference, or fixing dark, flat, or expensive renders. Triggers on: Three.js lighting, directional light, point light, spot light, shadows, shadow map, ambient light, HDR environment, IBL, environment map, light...

Load and manage Three.js assets with LoadingManager, GLTFLoader, DRACOLoader, KTX2Loader, texture/HDR loaders, async error handling, caching, progress reporting, and resource ownership. Use when importing GLB/GLTF models, textures, HDR assets, or compressed geometry, or when fixing slow, failed, duplicated, or leaky asset loads. Triggers on: Three.js loader, GLTFLoader, GLB, glTF, DRACOLoader, KTX2Loader, LoadingManager, texture loader, HDR loader, loading progress, asset cache.

Choose, configure, and optimize Three.js mesh materials: basic, Lambert, Phong, Standard, Physical, toon, points, lines, and shader-backed surfaces; PBR maps, transparency, environment reflections, cloning, and disposal. Use when styling meshes, tuning PBR, fixing transparency or material sharing bugs, or reducing material cost. Triggers on: Three.js material, MeshStandardMaterial, MeshPhysicalMaterial, PBR, roughness, metalness, transparency, environment map, mesh surface, material clone.

Build and optimize Three.js post-processing with EffectComposer, RenderPass, bloom, anti-aliasing, SSAO, depth of field, outlines, color correction, custom ShaderPasses, render targets, resize handling, and frame-budget controls. Use when adding or fixing screen-space effects, composer pass order, render target sizing, or visual-effect cost. Triggers on: Three.js postprocessing, EffectComposer, RenderPass, UnrealBloomPass, FXAA, SMAA, SSAO, depth of field, bloom, ShaderPass, render target, sc...

Create and debug Three.js shaders with ShaderMaterial, RawShaderMaterial, uniforms, varyings, GLSL vertex and fragment programs, texture sampling, procedural effects, onBeforeCompile extensions, shader chunks, instancing, and GPU performance checks. Use when writing custom GLSL, extending a built-in material, animating shader uniforms, or diagnosing shader compile, coordinate-space, and rendering issues. Triggers on: Three.js shader, ShaderMaterial, RawShaderMaterial, GLSL, uniforms, varyings...