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Convex Backend Guidelines

CloudAI-X/claude-workflow-v2

Guidelines for building Convex backends with TypeScript, detailing syntax, validators, schema design, queries, mutations, actions, scheduling, and file storage so you can implement Convex database operations, real-time updates, and cron jobs consistently.

Cookie Security Analyzer

cookie-security-analyzer

jeremylongshore/claude-code-plugins-plus-skills

Automated guidance for cookie security analysts that covers authentication, validation, secure coding, and vulnerability detection while generating production-ready code and configurations.

Marketing Copy Editing

coreyhaines31/marketingskills

Guided by the Seven Sweeps framework, this skill edits existing marketing copy to sharpen clarity, tone, benefits, proof, and specificity without rewriting the core message, making review requests actionable for conversion-focused teams.

Conversion Copywriting Framework

coreyhaines31/marketingskills

Guides writing marketing copy for homepage, landing, pricing, feature, and product pages with a focus on clarity, benefits, single-idea sections, and CTA strength, alongside recommended audience and context questions.

Cors Policy Validator

cors-policy-validator

jeremylongshore/claude-code-plugins-plus-skills

Automates cors policy validator tasks in the Security Fundamentals domain, offering best-practice guidance, prompt validation, and production-ready configuration snippets whenever you ask about cors policy patterns or hardening.

Cosmos Vulnerability Scanner

cosmos-vulnerability-scanner

trailofbits/skills

Scans Cosmos SDK chains and CosmWasm contracts for nine consensus-critical vulnerabilities such as non-determinism, incorrect GetSigners, and ABCI panics, returning findings and fix guidance when auditing or preparing new launches.

Cost Aware LLM Pipeline

cost-aware-llm-pipeline

affaan-m/everything-claude-code

Combines model routing, immutable budget tracking, retry policies, and prompt caching so LLM API calls stay on-budget without sacrificing quality, ideal for batch workloads with mixed complexity.

Cloud Cost Optimization

cost-optimization

sickn33/antigravity-awesome-skills

Guides teams through visibility, right-sizing, pricing models, architecture, tagging, and monitoring to reduce AWS/Azure/GCP spend while keeping performance stable.

Coupling Analysis Expert

coupling-analysis

tech-leads-club/agent-skills

Analyzes module coupling using the three-dimensional model from Balancing Coupling in Software Design to evaluate dependency strength, distance, and volatility, pinpoint architectural smells, and guide decoupling or integration decisions.

Fuzzing Coverage Analysis

coverage-analysis

trailofbits/skills

Analyzes code coverage during fuzzing campaigns to assess harness quality, spot blockers like magic values, and guide instrumentation or corpus updates.

Cpp Coding Standards

cpp-coding-standards

affaan-m/everything-claude-code

A modern C++ coding standard derived from the C++ Core Guidelines, enforcing RAII, immutability, type safety, and explicit intent when writing, reviewing, or architecting C++17/20/23 codebases.

Agent C++ Testing

affaan-m/everything-claude-code

Guides an agent through C++17/20 testing with CMake, CTest, and GoogleTest/Mock, covering new or flaky tests, CI gates, coverage builds, and sanitizer diagnostics to keep regression safety in place.

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