Update .github/workflows/sync-skill.yml to add a pre-change step that configures git user/email and runs git pull --rebase origin main before copying files, reducing risk of merge conflicts. Also rename the commit step to "Commit and push if changed" and remove redundant git config and pull from that step so it only commits and pushes the updated files.
Update GitHub Actions workflow to add concurrency controls, checkout the main ref, simplify ZIP creation (zip directly from skills/), and pull --rebase before committing; commit message now includes [skip ci]. Also update README to add an "Intensity Levels" nav link. Clarify skills/caveman/SKILL.md: document explicit /caveman lite|full|ultra triggers, expand the description of dropped filler/pleasantries/hedging, and apply small formatting tweaks.
Add GitHub issue templates for bug reports and feature requests tailored to the caveman persona, and add CONTRIBUTING.md describing how to propose changes to skills/caveman/SKILL.md (fork, edit, PR with before/after examples and rationale). These files help standardize contributions and make it easier for maintainers to review small, focused changes; also points contributors to ‘good first issue’ tasks.
Julius Brussee