Skills
99,719 packaged capabilities and playbooks for agents. Install any of them with one command.
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Walden History narrates a Walden repository's past from git history: feature chronicles built from frontmatter transitions, the product story of eras and supersessions, rework reports measuring churn after approvals, and the retirement ceremony for superseded specifications. Use when the user asks how a feature evolved, for a spec timeline or contract history, for rework or churn analysis, for the portfolio's story, or to retire superseded specs from `.walden/specs/`.
x402 pay-per-use payments on Hedera. Use when gating HTTP resources behind native HBAR payments, wiring a self-hosted Hedera facilitator (verify/settle), building x402ResourceServer / ExactHederaScheme flows, or integrating WalletConnect payment retries (PAYMENT-REQUIRED → PAYMENT-SIGNATURE).
Audit project dependencies, frameworks, languages, and dev tools for known vulnerabilities, CVEs, and security anti-patterns. Use when the user mentions “dependency audit,” “npm audit,” “CVE,” “vulnerable packages,” “supply chain security,” “outdated dependencies,” “known vulnerabilities,” “security advisory,” “package security,” “framework vulnerability,” “is this package safe,” “pnpm audit,” “yarn audit,” “bundle audit,” “patch this CVE,” “audit fix broke,” “lockfile diff,” “dependency confusion,” “registry redirection,” “MCP server pinning,” “release pipeline,” or needs to check whether their stack, CI, or release pipeline has known security issues
Break a one-line idea into a task brief that an AI agent can execute independently. Use it when users say "write a goal for the agent", "break down this goal in detail", "write a brief for the agent", "write a goal prompt", "let the agent run this project", or "split the work across several agents in parallel". Test in the codebase, research online when needed, ask all questions in one go (≤5), and produce a ≤4000-character brief that can be pasted into /goal and run, including measured numbers, whitelist boundaries, anti-cheat acceptance criteria, and checkpoint resumption. Execution-type and exploration-type (research/selection/solution search) tasks are routed automatically
Fast post-deliverable learning capture. Use when Ane types "/learned", or says "capture what I learned", "log a learning", "what did I learn from this", or wants a quick 4-line note after finishing a piece of work. Appends a dated entry to the running learning log in the Obsidian vault. The explicit-command sibling of journal-reflection's Post-deliverable capture mode; for end-of-day, weekly, decision-review, or new-framework reflection, use journal-reflection instead.
Dependency injection patterns and best practices using Microsoft.Extensions.DependencyInjection for .NET applications. Use when configuring DI containers in .NET, choosing between service lifetimes (Singleton, Scoped, Transient), or implementing decorator patterns and service interception.
AI tarot reader that interprets tarot cards from a Jungian psychology perspective. Supports 12 spreads of 1, 3, or 5 cards. Use when the user asks for a tarot reading, card drawing, daily fortune, or mentions keywords such as tarot, divination, drawing cards, fortune telling, luck, or spreads.
Zig build system skill for multi-file Zig projects. Use when writing or debugging build.zig files, adding executables or libraries, integrating C source files, configuring build-time options, running tests with zig build test, or managing build.zig.zon package manifests. Activates on queries about build.zig, b.addExecutable, addCSourceFiles, b.option, zig build, build.zig.zon, or Zig package management.
Audits and improves SEO for Astro sites. Use when the user asks to audit, set up, or improve SEO on an Astro site, or mentions head metadata, structured data, JSON-LD, sitemaps, IndexNow, Open Graph images, schema endpoints, NLWeb, hreflang, or search engine indexing in an Astro project. Produces drop-in code routed through `@jdevalk/astro-seo-graph` and chains into `metadata-check` for generated SEO strings.
Provide comprehensive techniques for penetration testing AWS cloud environments. Covers IAM enumeration, privilege escalation, SSRF against metadata endpoints, S3 bucket exploitation, Lambda code extraction, and persistence techniques for red team operations.
Turn a cleanup packet into one behavior-preserving refactor brief. Use when simplifying a messy function/component/service, freezing behavior before touching fragile legacy code, splitting a cleanup-heavy diff into reviewable slices, or planning a repeated migration / codemod without changing intended behavior. Route diagnosis to debugging, review judgment to code-review, validation-program design to testing-strategies, bottleneck-led tuning to performance-optimization, and pure symbol inventory to codebase-search.
Audit and improve SwiftUI runtime performance through code review and architecture. Use to diagnose slow rendering, janky scrolling, high CPU or memory usage, excessive view updates, or layout thrash in SwiftUI apps, and to provide guidance for user-run Instruments profiling when code review alone is insufficient.
Generate conference presentation slides (beamer LaTeX → PDF plus editable PPTX) from a compiled paper, with speaker notes and a full talk script. Use when the user says "做PPT", "做幻灯片", "make slides", "conference talk", "presentation slides", "生成slides", "写演讲稿", or wants beamer slides for a conference talk.
Redesign an existing site or app without losing what already works — audits the current surface first, classifies what to preserve (brand, IA, SEO, content), picks a refresh/reskin/rebuild scope, then modernizes deliberately. Use when the user says \"redesign\", \"modernize this site\", \"refresh the UI\", \"make this look current\", or points at an existing page/URL they want improved rather than rebuilt from scratch. Invoke when the user asks for redesign on their UI, or mentions 'redesign' alongside design / UI / frontend work.
Create high-click-through video covers and thumbnails for B站 / YouTube / 抖音 using the pop-out technique: a brightly lit cutout of the person layered over their own darkened original image, with text across the center. Recompose the same content with HTML/CSS in 16:9 / 4:3 / 3:4 aspect ratios. Use when the user wants a video cover, thumbnail, B站 cover, YouTube cover, vertical 抖音/视频号 cover, a person placed on a cover, or a Codex/Agent/AI video cover. Note: This is specifically for video covers, using a highly designed YouTube aesthetic; for 小红书 posts, infographics, or PPT styles, use yuyile-social-card-skill.
Detect, review, and fix code-quality and correctness issues in an AEM as a Cloud Service project — locally, with no external services or network calls. Use whenever a user wants to check, review, assess, audit, scan, modernize, upgrade, or fix AEM Java, Sling Models, OSGi, or Maven code — for example: "check my Sling Models are implemented correctly", "review my @Inject usage", "are my Maven dependencies up to date", "scan this AEM project for issues", "modernize my Sling Models", or "fix code-quality problems". Name the files to assess, or ask it to scan the repo; it detects issues, plans, and — only when you ask — applies surgical edits on a branch or in place, then verifies with mvn compile. It recognises the intent and handles each issue type itself, reporting anything it cannot yet fix.
LayerZero V2 messaging on Hedera. Use when building OFT / OApp bridges between Hedera and EVM chains, configuring Endpoint V2 peers and ULN/DVN/executor wiring, sending with quoteSend + send, implementing HTS-backed OFT connectors (mint/burn via 0x167), or relaying educational lzReceive flows on testnet.
Generate Mike-style YouTube thumbnail concepts and final drafts for Convex videos using Mike's local head-and-shoulders photo cutouts and local Convex logo assets. Use when the user asks for thumbnails, YouTube thumbnails, video thumbnail options, or a thumbnail like the Convex static hosting "NO DASHBOARDS" example.
Pay HTTP 402 payment challenges issued by OKX's Agent Payments Protocol (APP) on X Layer using tokens from any chain via the Uniswap Trading API. Use this skill whenever the user encounters a 402 challenge whose network resolves to X Layer (chain 196), mentions "APP", "Agent Payments Protocol", "OKX agent payment", "OKX Onchain OS", "OKX agentic wallet", "x402 on X Layer", "USDT0", "x42", "Instant Payment", "Batch Payment", "pay for X Layer API", or wants to pay an OKX-backed merchant. Even when the user does not explicitly say APP, prefer this skill for any 402 challenge whose network resolves to X Layer (chain 196). For 402 challenges on other chains (Ethereum, Base, Arbitrum, Tempo) use pay-with-any-token instead.
Call the Recoupable API from the sandbox to fetch artist data, socials, organizations, research, documents and any other platform resource — and to invoke external connector actions (Google Docs / Drive / Sheets edits, Gmail, TikTok, Instagram, etc.) via Recoupable's shared connections. Use whenever you're asked for Recoup data, a Recoupable platform resource, or to read/write something outside Recoup like a Google Doc URL or a spreadsheet. Triggers on phrases like "look up artist", "fetch from recoup", "artist data", "artist socials", "organizations", "artist report", "research", "create new artist", "create artist", "onboard artist", "add artist", "edit this Google Doc", "read this doc", "update the spreadsheet", "send an email", "post on TikTok", "save to Drive", or whenever the user pastes a docs.google.com / drive.google.com / sheets.google.com URL. Always load this before writing curl calls against api.recoupable.com.
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.