CCM
/Skills
SkillsMCPMarketplacesDigestToolsAdvertise

This week in Claude

Every Monday: Claude Code, Agent SDK, MCP, and the Anthropic platform moves worth your time.

Skills by Category
Frontend DevelopmentBackend & APIsTesting & QASecurityDevOps & CI/CDGit & Pull RequestsDocumentationCode Review & QualityAI & Agent BuildingSkill Development
MCP Servers by Category
Sales & MarketingWeb & Browser AutomationDatabasesAI & LLM ToolsCloud & InfrastructureCommunication & MessagingDeveloper ToolsDesign & CreativeDocuments & KnowledgeSearch & Web Crawling
Marketplaces by Category
AI Agents & OrchestrationLLM IntegrationDevelopment ToolsFrontend & UIBackend & APIsDatabasesTesting & Code QualityDevOps & CloudSecurity & ComplianceGit & Version Control

Claude Code Marketplaces

Discover Claude Code plugins, extensions, and tools. Automatically updated directory of Anthropic Claude AI marketplaces with development tools, productivity plugins, and integrations.

Resources

  • Browse Skills
  • Browse MCP Servers
  • Browse Marketplaces
  • Skill index
  • MCP index
  • Marketplace index
  • Plugins Reference

Community

  • About
  • Tools
  • Feedback
  • Privacy Policy
  • Advertise

Built for the Claude Code community with Claude Code by mertbuilds.com

Independent project, not affiliated with Anthropic
ed3dai avatar

Functional Core Imperative Shell

ed3dai/ed3d-plugins
163 installs247 stars
Summary

This skill helps you structure code by separating pure business logic from side effects. The core idea is simple: put your pure functions in one file where they're easy to test without mocks, and isolate all I/O operations in a thin shell around them. It's based on the functional core, imperative shell pattern that makes entire classes of bugs structurally impossible. The author suggests using it whenever you're writing new code, refactoring, or deciding where logic belongs. It's a disciplined approach that pays off in testability, though it requires thinking carefully about boundaries from the start.

Install to Claude Code

npx -y skills add ed3dai/ed3d-plugins --skill functional-core-imperative-shell --agent claude-code

Installs into .claude/skills of the current project.

CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
Give your AI the whole web as clean markdown
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
inference shell
inference shell
create and run specialised agents in minutes
build now →
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
Give your AI the whole web as clean markdown
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
inference shell
inference shell
create and run specialised agents in minutes
build now →
Files
SKILL.md

Select a file.

Featured
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
MCP-ready Email SendingMCP-ready Email Sending
MCP-ready Email Sending
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
Capacitor - Shared memory for your team’s coding agents.
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
CodeScene MCP Server
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
Give your AI the whole web as clean markdown
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
inference shell
inference shell
create and run specialised agents in minutes
build now →
Categories
DocumentationCode Review & QualityCLI & Terminal
First SeenJun 3, 2026
View on GitHub

Recommended

More Documentation →
bbeierle12 avatar
shader-fundamentals

bbeierle12/skill-mcp-claude

GLSL shader fundamentals—vertex and fragment shaders, uniforms, varyings, attributes, coordinate systems, built-in variables, and data types. Use when writing custom shaders, understanding the graphics pipeline, or debugging shader code. The foundational skill for all shader work.
161
8
jwilger avatar
code-review

jwilger/agent-skills

Three-stage code review protocol covering spec compliance, code quality, and domain integrity. Use this skill whenever the user asks to review code, prepare or check a PR, assess implementation quality, verify code against a spec or acceptance criteria, or audit for security and domain modeling issues. Triggers on: "review this code", "review my PR", "check implementation against spec", "code quality audit", "does this match the requirements", "review for security issues", "check for primitive obsession", "monetary precision review", "review test coverage gaps". Also activates when the user wants structured PASS/FAIL verdicts per requirement, severity-rated findings, or a gated review that blocks on critical issues. NOT for: style/formatting linting, debugging runtime errors, writing new code, or automated CI checks.
161
1
s-hiraoku avatar
security-audit

s-hiraoku/synapse-a2a

General-purpose security auditing guide. Covers OWASP Top 10, dependency vulnerabilities, authentication, authorization, input validation, and secret management. Use this when performing a security review or audit.
161
10
aibtcdev avatar
aibtc-news-protocol

aibtcdev/skills

AIBTC Network editorial skill — "Protocol and Infrastructure Updates" signal composition, source validation, and editorial voice guide for aibtc.news correspondents covering API changes, contract deployments, MCP updates, protocol upgrades, bugs, and breaking changes.
160
9
laurigates avatar
git-commit-workflow

laurigates/claude-plugins

Conventional commit format, staging, and message conventions. Use when writing commit messages, staging files, grouping changes, or auto-detecting linked issues.
160
49
cinience avatar
alicloud-skill-creator-test

cinience/alicloud-skills

Smoke test for alicloud-skill-creator. Validate repository path conventions, frontmatter quality, script compilation, and README index refresh workflow.
157
396