Your API keys are probably sitting in plain text in your mcp.json. Here's how to secure them with environment variable interpolation, a dedicated secrets file and deny rules.
Step-by-step construction of a Claude Code skill that cross-references web sources, fact-checking APIs, primary sources, and bias detection to verify any news in 2 minutes. With a real case: natural hydrogen in Moselle, France.
Step-by-step guide to building a Claude Code skill that cross-references PubMed, Semantic Scholar and the web to produce structured reports on any health claim. With MCP configuration and 2026 best practices.
The data.gouv.fr MCP server lets you explore and analyze French public datasets directly from Claude Code. Setup, available tools and real-world use cases.
Creating a custom Claude Code status line that displays the model, context usage and real usage limits via the Anthropic API with progress bars.
Advanced Claude Code settings: environment variables, security permissions, automatic hooks and plugins for an optimized development workflow.