Anthropic Security Basics

What it does

Provides a concise, actionable guide for securing Anthropic (Claude) API integrations. It covers environment-based key management, key rotation, workspace isolation, input validation/sanitization, prompt-injection mitigations, and output scanning for leaked secrets. The skill includes code snippets (bash and Python) that demonstrate safe patterns for key handling, defensive prompting, input/output validators, and a security checklist for production deployment.

When to use it

Use this skill during development or review of systems that call Anthropic/Claude APIs—particularly when implementing key storage and rotation, building user-facing prompts, or sanitizing and validating user input before sending it to the model. Trigger on requests about Anthropic security, Claude API key security, prompt injection defense, or production hardening.

What's included

• Scripts: None bundled, but the SKILL.md contains runnable bash and Python snippets for key rotation, validation, and defensive prompting.
• References: Links to Anthropic security and prompt engineering docs are provided.
• Instructions: Step-by-step patterns for environment variable key management, workspace isolation, functional validators for input/output, and a production checklist (env safety, rotation, audit logging).

Compatible agents

Best suited for Claude/Anthropic-capable agents (claude-code / Claude integrations). The examples are language-agnostic (bash/python) so developer-focused agents like code assistants will find them directly useful.