Push all the scripts from the different skills in 1 tools directory

Merged
YA
8d ago
+156-248

Summary by cubic

Consolidates all skill helper scripts into a single shared skills/tools directory and makes plugin installs pull in that directory, so skills no longer bundle their own private copies of the same script.

  • Skills resolve helpers through <tools-dir> (found at runtime in the checkout's skills/tools or the installed plugin's tools/) instead of local copies, and the SKILL.md files now include instructions for discovering that path.
  • Removes the duplicate papers.py from short-paper-review; bundle_resources.py, the test suite, and the LinkedIn workflow point at the shared location, and researchers.py adjusts its default repo-root lookup for the shallower path.
  • Restructures the Claude marketplace so shared tools/ is installed alongside each skill, adds a matching Codex plugin, updates packaging tests, and ignores local agent discovery configs (.agents/).