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
levnikolaevich avatar

Ln 643 Api Contract Auditor

levnikolaevich/claude-code-skills
379 installs533 stars
Summary

Audits API contracts at service boundaries by checking for layer leakage (HTTP types in service methods), missing DTOs, entity leakage to APIs, inconsistent error handling, and redundant overloads. Works in global or domain-aware mode, uses two-layer detection with language-specific grep patterns, and scores compliance, completeness, quality, and implementation separately. The findings focus purely on architecture boundaries, not code duplication or internal implementation details. Each issue gets tagged with an action like ADD_DTO or STOP_ENTITY_LEAK. Useful when you need to verify clean separation between API, service, and domain layers, especially in codebases where request objects have started bleeding into business logic.

Install to Claude Code

npx -y skills add levnikolaevich/claude-code-skills --skill ln-643-api-contract-auditor --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
Backend & APIsDebugging
First SeenJun 3, 2026
View on GitHub

More from levnikolaevich/claude-code-skills

All 128 skills →
  • Ln 731 Docker Generator379
  • Ln 733 Env Configurator379
  • Ln 743 Test Infrastructure379
  • Ln 402 Task Reviewer378
  • Ln 404 Test Executor378
  • Ln 720 Structure Migrator378
  • Ln 721 Frontend Restructure378
  • Ln 230 Story Prioritizer376
  • Ln 635 Test Isolation Auditor376
  • Ln 646 Project Structure Auditor376
  • Ln 722 Backend Generator376
  • Ln 771 Logging Configurator376
  • Ln 783 Container Launcher376
  • Ln 220 Story Coordinator375
  • Ln 300 Task Coordinator375
  • Ln 500 Story Quality Gate375
  • Ln 780 Bootstrap Verifier375
  • Ln 112 Project Core Creator373
  • Ln 130 Tasks Docs Creator373
  • Ln 770 Crosscutting Setup373
  • Ln 400 Story Executor372
  • Ln 633 Test Value Auditor372
  • Ln 740 Quality Setup372
  • Ln 221 Story Creator371

Recommended

More Backend & APIs →
secondsky avatar
api-contract-testing

secondsky/claude-skills

Verifies API contracts between services using consumer-driven contracts, schema validation, and tools like Pact. Use when testing microservices communication, preventing breaking changes, or validating OpenAPI specifications.
378
204
davila7 avatar
drugbank-database

davila7/claude-code-templates

Access and analyze comprehensive drug information from the DrugBank database including drug properties, interactions, targets, pathways, chemical structures, and pharmacology data. This skill should be used when working with pharmaceutical data, drug discovery research, pharmacology studies, drug-drug interaction analysis, target identification, chemical similarity searches, ADMET predictions, or any task requiring detailed drug and drug target information from DrugBank.
377
30.2k
levnikolaevich avatar
ln-722-backend-generator

levnikolaevich/claude-code-skills

Generates .NET Clean Architecture backend structure from entity definitions. Use when bootstrapping .NET backend projects.
376
533
yoanbernabeu avatar
supabase-report

yoanbernabeu/supabase-pentest-skills

Generate a comprehensive Markdown security audit report with executive summary, findings, and remediation guidance.
365
60
firebase avatar
firebase-firestore-standard

firebase/skills

firebase firestore standard
358
327
yoanbernabeu avatar
supabase-audit-tables-read

yoanbernabeu/supabase-pentest-skills

Attempt to read data from exposed tables to verify actual data exposure and RLS effectiveness.
358
60