etetoolkit

Quick Review

Excellent phylogenetic toolkit skill with comprehensive coverage of ETE3 capabilities. The SKILL.md provides clear, actionable descriptions across 6 core capabilities (tree manipulation, phylogenetic analysis, NCBI taxonomy, visualization, clustering, tree comparison) with extensive code examples and CLI commands. Task knowledge is outstanding with detailed workflows, troubleshooting, and best practices. Structure is well-organized with a logical overview and appropriate references to external files for API details. The skill addresses a genuinely complex domain (phylogenomics, evolutionary analysis) that would require significant token expenditure for a CLI agent to handle independently, making it highly valuable for bioinformatics workflows. Minor improvements could include more explicit cross-references to the referenced documentation files, but overall this is a high-quality, production-ready skill.