Comments
Code comments and annotations
anndata-data-structure
by jaechang-hits
"Annotated data matrices for single-cell genomics. AnnData stores expression data (X) with observation metadata (obs), variable metadata (var), layers, embeddings (obsm/varm), graphs (obsp/varp), and unstructured data (uns). Use for .h5ad/.zarr file handling, dataset concatenation, and scverse ecosystem integration. For analysis workflows use scanpy; for probabilistic models use scvi-tools."
cm
by Dicklesworthstone
"CASS Memory System - procedural memory for AI coding agents. Three-layer cognitive architecture with confidence decay, anti-pattern learning, cross-agent knowledge transfer, trauma guard safety system. Bun/TypeScript CLI."
algorithms-education
by williamfiset
Skills and conventions for an educational algorithms and data structures repository. Use this skill whenever working on algorithm implementations, data structure code, LeetCode-style problems, graph theory, dynamic programming, or any Java-based educational coding project. Trigger on mentions of: algorithms, data structures, graph theory, sorting, searching, trees, DP, BFS, DFS, linked lists, heaps, segment trees, union-find, or any request to write, refactor, document, or test educational code. Also trigger when the user asks to "clean up", "simplify", "document", "refactor" or "add tests" to algorithm code.
reddit-commenter
by rokpiy
A skill for writing natural and valuable comments on Reddit communities. Includes the complete workflow from subreddit exploration, comment writing, review, posting, to tracking.
github-pr-review
by OpenHands
Post PR review comments using the GitHub API with inline comments, suggestions, and priority labels.
contract-review-pro
by CSlawyer1985
"专业合同审核 Skill，基于合同审核工作区成熟经验，提供7步工作流、终稿三件套、风险六维度评价"
playwright-best-practices
by currents-dev
Provides comprehensive guidance for writing, debugging, and maintaining Playwright tests in TypeScript. Use when writing Playwright tests, fixing flaky tests, debugging failures, implementing Page Object Model, configuring CI/CD, optimizing performance, mocking APIs, handling authentication or OAuth, testing accessibility (axe-core), file uploads/downloads, date/time mocking, WebSockets, geolocation, permissions, multi-tab/popup flows, mobile/responsive layouts, touch gestures, GraphQL, error handling, offline mode, multi-user collaboration, third-party services (payments, email verification), console error monitoring, global setup/teardown, test annotations (skip, fixme, slow), project dependencies, security testing (XSS, CSRF, auth), performance budgets (Web Vitals, Lighthouse), iframes, component testing, canvas/WebGL, service workers/PWA, test coverage, i18n/localization, Electron apps, or browser extension testing. Covers E2E, component, API, visual, accessibility, security, Electron, and extension testing.
python-typing-patterns
by 0xDarkMatter
"Python type hints and type safety patterns. Triggers on: type hints, typing, TypeVar, Generic, Protocol, mypy, pyright, type annotation, overload, TypedDict."
cellar
by VirtusLab
Look up the public API of any JVM dependency (Scala 3, Scala 2, Java) from the terminal. Returns type signatures, members, docstrings, and source code as Markdown.
springboot-migration
by a-pavithraa
Migrate Spring Boot projects to version 4.0 with Java 25, including Spring Modulith 2.0 and Testcontainers 2.x upgrades. Use when user requests upgrading Spring Boot, migrating to Java 25, updating dependencies to Spring Boot 4, mentions Jackson 3 migration, asks about starter renames (web→webmvc, aop→aspectj), fixing test annotations (@MockBean→@MockitoBean), or needs help with Spring Modulith 2.0 or Testcontainers 2.x compatibility. Analyzes codebase for migration issues and guides through changes with specific file references.
database-design
by Leavesfly
数据库设计规范与优化指南
related-work-writing
by lingzhi227
Write Related Work sections that compare and contrast prior work with your approach. Organize by theme, cite broadly, and explain how your work differs. Use when writing or improving the Related Work section of a paper.
abstraction-concrete-examples
by lyndonkl
Use when explaining concepts at different expertise levels, moving between abstract principles and concrete implementation, identifying edge cases by testing ideas against scenarios, designing layered documentation, decomposing complex problems into actionable steps, or bridging strategy-execution gaps. Invoke when user mentions abstraction levels, making concepts concrete, or explaining at different depths.
gene-database
by jimmc414
"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."
anndata
by jimmc414
This skill should be used when working with annotated data matrices in Python, particularly for single-cell genomics analysis, managing experimental measurements with metadata, or handling large-scale biological datasets. Use when tasks involve AnnData objects, h5ad files, single-cell RNA-seq data, or integration with scanpy/scverse tools.
lamindb
by jimmc414
This skill should be used when working with LaminDB, an open-source data framework for biology that makes data queryable, traceable, reproducible, and FAIR. Use when managing biological datasets (scRNA-seq, spatial, flow cytometry, etc.), tracking computational workflows, curating and validating data with biological ontologies, building data lakehouses, or ensuring data lineage and reproducibility in biological research. Covers data management, annotation, ontologies (genes, cell types, diseases, tissues), schema validation, integrations with workflow managers (Nextflow, Snakemake) and MLOps platforms (W&B, MLflow), and deployment strategies.
issue-auto-sync
by jmagly
MCP tools: Gitea issue management
mentor
by mcouthon
"Guide through problems with questions, not answers using Socratic teaching style. Use when asked to teach, explain concepts through discovery, help learn, or guide understanding without giving direct solutions. Triggers on: 'use mentor mode', 'teach me', 'help me understand', 'guide me', 'mentor', 'I want to learn', 'explain by asking', 'Socratic', 'don't give me the answer'. Read-only mode - explores and guides but doesn't write code."
posting-bitwarden-review-comments
by bitwarden
Use this skill when posting inline comments to GitHub pull requests. Apply when formatting comments following Bitwarden engineering standards with severity emojis, clear explanations, and actionable suggestions. Use after findings are classified and ready to post. DO NOT USE when posting summary comments.
posting-review-summary
by bitwarden
Use this skill when posting the final summary comment after all inline comments are posted. Apply as the LAST step of code review after all findings are classified and inline comments are complete. Detects context (GitHub sticky comment, new comment, or local file) and routes output accordingly.
mysql
by wcygan
Plan and review MySQL/InnoDB schema, indexing, query tuning, transactions, and operations. Use when creating or modifying MySQL tables, indexes, or queries; diagnosing slow/locking behavior; planning migrations; or troubleshooting replication and connection issues. Load when using a MySQL database.
context-decorate
by wcygan
Scan a codebase and place CLAUDE.md context files in directories that lack them. Spins up a team of subagents to parallelize the work — each agent covers a few directories and generates a succinct overview of the directory's purpose and key subdirectories. Use when onboarding to a new codebase, improving Claude context quality, annotating project structure, or scaffolding directory-level context for AI assistants. Keywords: context, CLAUDE.md, annotate, codebase, directory, onboard, decorate, scaffold context, context files.
diff-explain
by wcygan
Explain a diff in plain English. Works with staged changes, unstaged changes, commits, branches, or PR numbers. Use when you want to understand what changed and why. Keywords: diff, explain diff, what changed, understand changes, diff summary, review changes, read diff
explain
by wcygan
Explain code, functions, modules, or programming concepts with structured walkthroughs covering purpose, patterns, data flow, edge cases, and performance. Use when explaining code, understanding how something works, learning a concept, or walking through a codebase. Keywords: explain, how does this work, what does this do, walkthrough, understand, code explanation, concept, teach, learn