Rewrite subsection openers so they stop reading like a generated table-of-contents: remove \"overview/narration\" stems and reduce repeated opener cadences across H3s. Trigger: opener variator, opener rewrite, rewrite openers, overview opener, 开头改写, 小节开头, 去overview, 去旁白.
$npx -y skills add willoscar/research-units-pipeline-skills --skill opener-variatorInstalls into the current project.
Run `npx skills use "https://github.com/willoscar/research-units-pipeline-skills" --skill "willoscar/research-units-pipeline-skills/opener-variator"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/willoscar/research-units-pipeline-skills" that are relevant to the current task. Run `npx skills add "https://github.com/willoscar/research-units-pipeline-skills"` and select the relevant skills, then follow their instructions.