This skill should be used when picking or diagnosing a training move (SFT, LoRA, DPO/KTO/ORPO, RFT, GRPO/PPO/RLOO, RLHF), or when the user mentions fine-tuning, post-training, training recipe, reward design, or weight updates. Decision tree by reward shape, smoke-run gate, three failure diagnostics, five false-progress patterns. Provider recipes and I/O contract in references/.

Build and maintain a company knowledge base as a wiki of interlinked markdown notes in the workspace — a private, compounding Wikipedia. Use when the user wants to start or organize a knowledge base / wiki, ingest sources (URLs, documents, pasted notes) into it, ask questions answered from it, or audit (lint) it. Defines the wiki layout (SCHEMA / index / log / raw / pages), the frontmatter contract, [[wikilink]] conventions, and a deterministic lint script that catches broken links, orphan pages, index drift, and frontmatter problems.

1688选品铺货 + 商机趋势专家。用于：(1) 在1688搜索商品/选品找货源 (2) 查询已绑定的下游店铺 (3) 将商品铺货到抖音/拼多多/小红书/淘宝等平台 (4) 配置1688 AK密钥 (5) 查看即时商机热榜 (6) 查看类目/行业趋势与价格分布 (7) 生成店铺经营日报并输出主营商品选品建议。 触发词：帮我找商品、在1688搜、选品、铺货、上架、查店铺、配置AK、商机、热榜、排行榜、趋势、价格分布、经营日报、店铺日报、动销分析、经营分析、选品建议、1688找货。

Redesign a dashboard, KPI view, operational console, or analytical workspace around real decisions and data meaning. Trigger on "redesign this dashboard", "redesign this report", "clean up this analytics view", "improve these KPIs", or "fix this reporting view". Use ux-ui-audit for diagnosis without redesign and design-system-review for library-wide component issues. Do not invent metrics or thresholds.

Design, specify, map, evaluate, or improve an AI assistant, LLM feature, copilot, chatbot, agent, recommendation, generation, or automation workflow. Define capability boundaries, user control, recovery, trust, evidence, uncertainty, permissions, and evaluation. Trigger on "design this AI feature", "build an AI feature", "chatbot design", "improve this copilot", "AI automation", or "plan this agent workflow". Do not use for model training or prompt-only writing.

Reviews Bash, Zsh, and Fish shell scripts for bugs, security vulnerabilities, portability issues, and style violations against the Google Shell Style Guide, ShellCheck, BashPitfalls, and shell-specific idiom conventions. Use when the user asks to review, audit, lint, or improve a .sh/.bash/.zsh/.fish file, or pastes shell script content for feedback.

微信公众号文章排版引擎，将 Markdown 转换为可直接粘贴到公众号编辑器的 HTML。主题风格从 references/theme-index.md 注册的自定义主题库中选取，自动章节编号、关键词下划线标记、引言卡片、目录导航、代码块、图片/GIF、作者签名。支持 Markdown / Word(.docx) / PDF / 纯文本输入（非 Markdown 先自动归一化），也支持"一键自动排版"（自动推断结构+选主题），还支持根据用户描述/参考图生成自定义主题组件库并保存本地复用。触发场景：(1) 用户提到"公众号排版""公众号文章""微信排版""gzh"，(2) 用户想把文章（md/docx/pdf/纯文本）转成公众号 HTML，(3) 用户说"自动排版""一键排版"公众号内容，(4) 用户想为公众号排版"生成新主题/自定义风格/按这张图做一套组件库"。不用于生成普通网页/落地页/PPT（用前端或 PPT 类 skill）。

Run, refresh, or recover from RedisInsight's per-project TypeScript error baselines (.tscheck.rec.json). Use when CI reports "baseline is outdated" or "more TS errors than previously recorded", when the user mentions tscheck / type-check / .tscheck.rec.json, when introducing or fixing TS errors, or when reviewing PRs that touch baseline files.

Implements, registers, and verifies fuzz tests in Chromium. Use when the user asks to add or write fuzzers in C++, or mentions fuzz testing or FUZZ_TEST.

Pull and interpret production experiment query-performance data from the staff-only `/api/debug_ch_queries` endpoints backing the `/experiments/staff` scene: slowest experiment queries, precompute read/build health, and preaggregation cache footprint. Covers prod-US and prod-EU via a `query_performance:read` personal API key, all query params, and response field semantics (exception codes, exposure paths, precompute skip reasons, job states). Use when investigating slow or failing experiment queries, precompute regressions, 307/159/241 errors, preaggregation table growth, or when asked how experiment query performance or the precompute rollout is doing in production.

Diagnose whether the most important idea in an article, essay, post, memo, section, paragraph, or sentence appears where it best serves the reader. Use for BLUF checks, buried or misplaced ledes, slow or misleading openings, intro drift, competing main ideas, and requests to get to the point or find the real opening. Compare what the opening foregrounds with what the artifact actually delivers, judge whether any delay is earned, and recommend the smallest structural move. Diagnose by default; rewrite only when asked.

Hugging Face Hub CLI (`hf`) for downloading, uploading, and managing repositories, models, datasets, and Spaces on the Hugging Face Hub. Replaces now deprecated `huggingface-cli` command.

Use when generating or modifying Remotion video code, creating demo videos, or working with the demo-video/ directory

Scaffold an isolated CLOUD dev box per agent (via crabbox + Daytona) for any codebase — the parallel-safe counterpart to dev-local-setup. Each agent gets its own full stack (own DB + dev server) and an in-box browser for e2e, so concurrent loops never collide on ports/state. Sets up the snapshot image, .crabbox.yaml, an idempotent setup.sh (also boots the stack locally), and a cbx.sh wrapper. Use when the user says "set up crabbox", "give each agent its own box", "add cloud testing", "make this repo testable in the cloud / on Daytona", "parallel-test this", or when setup-codebase-harness needs true per-agent isolation.

Control Spotify playback on macOS. Play/pause, skip tracks, control volume, play artists/albums/playlists. Use when a user asks to play music, control Spotify, change songs, or adjust Spotify volume.

Use this skill when asked to perform any of the following actions in a Java project: - To add jspecify support - To prevent NullPointerExceptions - To better handle Nullability This skill will add jspecify dependency, configure Maven or Gradle build to automatically use jspecify for checking Nullability issues.

Manage major dependency version upgrades with compatibility analysis, staged rollout, and comprehensive testing. Use when upgrading framework versions, updating major dependencies, or managing breaking changes in libraries.

Run `make fmt` to check the code format.

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.