Claude Code Plugins Marketplace Python Packages

coder-eval

Playwright for coding agents. Test that your skills, MCP servers, and CLIs actually work when an agent uses them — sandboxed YAML suites, A/B experiments, CI gates.

tokenmizer

Graph memory for AI agents — decisions, context, and session history that survive across every conversation. Works with any LLM.

goaltree

Open source goal tree for Claude Code: maps why every part of a project exists and which goal matters most right now.

hardstop

Don't let AI destroy your hard work! HardStop is a rock-solid protection for AI-generated commands. Pre-execution safety validation for Claude Code, Claude Cowork. Catches dangerous commands before they run: whether from AI mistakes, hallucinations, prompt injection, or misunderstood instructions. Seatbelts for the agentic AI era.