If you're working with X/Twitter data in Claude Code, this handles the grunt work of normalizing datasets, ranking tweets and accounts, building audience graphs, and clustering by language. It expects hosted collections with a specific schema (schemaVersion 1, with your task under input), and supports x-posts and x-profiles collection keys out of the box. The SKILL.md is pretty clear about boundaries: don't use it for ideation or QA, and don't let it guess at missing inputs. With 314 installs and passing most security audits (Snyk throws a warning), it's a solid pick if you're doing serious Twitter analysis work and need structured primitives instead of rolling your own data pipelines.
npx skills add https://github.com/postplusai/postplus-skills --skill x-tools