Suta is a skill for Claude Code and Codex that reduces AI-generated UI design repetition by providing layout, color, and motion guidelines along with 56 reusable UI patterns. The tool helps AI models generate more varied and thoughtful interfaces instead of defaulting to common design clichés like excessive cards and unnecessary decoration.
Waterline is a free macOS screensaver by Ascenda that visualizes AI coding agent activity through rising water and ripples, supporting Claude Code, Codex, and Cursor. It runs locally without network connections or account requirements, with optional Ascenda Flow for enhanced tracking and color representation of workload.
Eval-skills is a framework for building and improving AI agent applications through systematic evaluation and experimentation. It guides developers from inspecting real executions through human review, error analysis, and validated grading to running controlled improvement experiments with Descent. The tool integrates with Claude Code, Codex, and Cursor to help teams establish trustworthy baselines and catch regressions in production.
Claude Code and Codex agents exhibit incompatible MCP server support, with five of ten tested features failing on one agent while working on the other. The Harness Quirks Matrix, built on the M3 testing tool, identified specific failure modes: Claude Code drops tools with ids[] properties and truncates error messages, while Codex caches outdated tool catalogs and compacts large schemas. Eight additional failures were found through direct binary probing.