Agent Skills

io.github.mukul975/Anthropic-Cybersecurity-Skills/performing-directory-traversal-testing

Testing web applications for path traversal vulnerabilities that allow reading or writing arbitrary files on the server by manipulating file path parameters.

Humanizer

v2.1.0

io.clawhub.brandonwise/ai-humanizer

Humanize AI-generated text by detecting and removing patterns typical of LLM output. Rewrites text to sound natural, specific, and human. Uses 24 pattern detectors, 500+ AI vocabulary terms across 3 tiers, and statistical analysis (burstiness, type-token ratio, readability) for comprehensive detection. Use when asked to humanize text, de-AI writing, make content sound more natural/human, review writing for AI patterns, score text for AI detection, or improve AI-generated drafts. Covers content, language, style, communication, and filler categories.

io.github.latitude-dev/latitude-llm/testing

Writing or debugging tests, choosing unit vs integration style, Postgres/ClickHouse tests, regenerating ClickHouse test schema, or exporting test helpers from packages without pulling test code into production bundles.

io.github.aiming-lab/MetaClaw/sql-best-practices

Use this skill when writing SQL queries — selects, joins, aggregations, window functions, or schema modifications. Apply whenever SQL is needed to ensure correctness, safety, and performance.

copywriter

v1.1.0

io.clawhub.killerapp/copywriter

Write compelling UX copy, marketing content, and product messaging. Use when writing button labels, error messages, landing pages, emails, CTAs, empty states, tooltips, or any user-facing text.

io.github.wealthfolio/wealthfolio/react-useeffect

React useEffect best practices from official docs. Use when writing/reviewing useEffect, useState for derived values, data fetching, or state synchronization. Teaches when NOT to use Effect and better alternatives.

io.github.sickn33/antigravity-awesome-skills/python-testing-patterns

Implement comprehensive testing strategies with pytest, fixtures, mocking, and test-driven development. Use when writing Python tests, setting up test suites, or implementing testing best practices.

io.github.HoangNguyen0403/agent-skills-standard/database-postgresql

Enforce repository patterns, zero-downtime migrations, and indexing standards for PostgreSQL with TypeORM or Prisma. Use when defining entities, writing migrations, adding RLS policies, or optimizing query performance.

io.github.tedivm/robs_awesome_python_template/sqlalchemy-models

Create or modify SQLAlchemy models, queries, and Alembic migrations. Use when: defining new database tables, writing queries, creating migrations, checking model conventions, or understanding the database layer.

Arxiv Paper Processor

v0.1.1

io.clawhub.xukp20/arxiv-paper-processor

Tool for manual per-paper ArXiv paper processing: batch/source/pdf download then model-driven full-text reading and summary.md writing in chosen language.

Vercel React Best Practices

v0.1.0

io.clawhub.analsharqy/react-best-practices-2

React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.j...

io.github.PrefectHQ/fastmcp/python-tests

Write and evaluate effective Python tests using pytest. Use when writing tests, reviewing test code, debugging test failures, or improving test coverage. Covers test design, fixtures, parameterization, mocking, and async testing.

io.github.databricks-solutions/ai-dev-kit/python-dev

Python development guidance with code quality standards, error handling, testing practices, and environment management. Use when writing, reviewing, or modifying Python code (.py files) or Jupyter notebooks (.ipynb files).

io.github.hashintel/hash/testing-hashql

HashQL testing strategies including compiletest (UI tests), unit tests, and snapshot tests. Use when writing tests for HashQL code, using //~ annotations, running --bless, debugging test failures, or choosing the right testing approach.

io.github.comet-ml/opik/writing-e2e-tests

Use when a developer wants to add, write, or create an end-to-end test for an Opik feature, page, or branch — e.g. "add an e2e test for the experiments comparison page", "write a test for the feature I just built", "e2e test for this branch", "cover the dataset items flow with a test". Runs the full loop in tests_end_to_end/e2e/ — analyze the feature and frontend code, explore the live UI with the Playwright MCP, write the Page Object Model + spec, and run it locally until green.

io.github.affaan-m/ECC/react-patterns

React 18/19 patterns including hooks discipline, server/client component boundaries, Suspense + error boundaries, form actions, data fetching, state management decision trees, and accessibility-first composition. Use when writing or reviewing React components.

io.github.affaan-m/ECC/react-patterns

React 18/19 patterns including hooks discipline, server/client component boundaries, Suspense + error boundaries, form actions, data fetching, state management decision trees, and accessibility-first composition. Use when writing or reviewing React components.

io.github.citypaul/.dotfiles/testing

Testing patterns for behavior-driven tests. Use when writing tests, creating test factories, structuring test files, or deciding what to test. Do NOT use for UI-specific testing (see front-end-testing or react-testing skills).

SQL Toolkit

v1.0.0

io.clawhub.gitgoodordietrying/sql-toolkit

Query, design, migrate, and optimize SQL databases. Use when working with SQLite, PostgreSQL, or MySQL — schema design, writing queries, creating migrations, indexing, backup/restore, and debugging slow queries. No ORMs required.

Database Operations

v1.0.0

io.clawhub.jgarrison929/database-operations

Use when designing database schemas, writing migrations, optimizing SQL queries, fixing N+1 problems, creating indexes, setting up PostgreSQL, configuring EF Core, implementing caching, partitioning tables, or any database performance question.

Shell Scripting

v1.0.0

io.clawhub.gitgoodordietrying/shell-scripting

Write robust, portable shell scripts. Use when parsing arguments, handling errors properly, writing POSIX-compatible scripts, managing temp files, running commands in parallel, managing background processes, or adding --help to scripts.

Infrastructure as Code

v1.0.0

io.clawhub.gitgoodordietrying/infra-as-code

Define and manage cloud infrastructure with code. Use when writing Terraform, CloudFormation, or Pulumi configs, managing state, planning deployments, setting up networking/compute/storage resources, or debugging infrastructure drift.

io.github.software-mansion/react-native-audio-api/writing-skills

How to write, structure, and maintain Claude skill files. Covers the three-level progressive disclosure model, all YAML frontmatter fields (context:fork, allowed-tools, disable-model-invocation, user-invocable, hooks, argument-hint), invocation control patterns, string substitutions ($ARGUMENTS, ${CLAUDE_SKILL_DIR}), shell preprocessing with backtick syntax, and the Maintenance section contract. Use when creating a new skill file, rewriting an existing one, or reviewing a skill for quality. Trigger phrases: "add a skill", "write a skill", "create a skill file", "update skill", "skill quality", "skill review", "context fork", "allowed-tools", "user-invocable".

io.github.prowler-cloud/prowler/react-19

React 19 patterns with React Compiler. Trigger: When writing React 19 components/hooks in .tsx (React Compiler rules, hook patterns, refs as props). If using Next.js App Router/Server Actions, also use nextjs-16.