Description 450 -> 266 chars, body 1044 -> 462 words. The bisect procedure
moves to references/bisect.md.
The boundary clause read 'not writing or rewriting commits', which
disclaimed the cherry-pick and revert this skill's own Step 3 executes; it
now excludes authoring and rebasing only. Adds 'backport' so cherry-pick is
reachable by natural language at all, accepting 266 chars against a 250
soft target and a 400 ceiling.
## Why
The git plugin only covered a partial slice of common git workflows.
This adds the remaining skill set (branches, commits, history, remotes,
submodules, workflow, worktrees) plus a git-orchestrate agent so the
plugin can handle end-to-end git automation instead of a handful of
commands.
## Implementation Notes
Each new skill was validated against its research docs and org
conventions after initial authoring, which surfaced hallucinated
version pins, factual errors, and completeness gaps that were
corrected in the same pass rather than left for follow-up.
## Impact
Bumps the git plugin to 1.3.0.
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>