claude-code-config: Skill for Claude Code

Resolve local merge conflicts while reconciling with latest origin/main. Safe to run mid-merge (git merge in progress) or mid-rebase (git rebase stopped on a conflict): the script only reads unmerged paths and the working tree.

Resolve the diff-survival guard before changing conflicts:

resolve_script() {
  local name="$1" candidate
  for candidate in \
    "$HOME/.claude/skills-worktree/.claude/scripts/$name" \
    "$HOME/.claude/scripts/$name" \
    ".claude/scripts/$name"; do
    if [[ -x "$candidate" ]]; then echo "$candidate"; return 0; fi
  done
  return 1
}
DIFF_SURVIVAL_SH=$(resolve_script diff-survival-check.sh || true)
[[ -n "$DIFF_SURVIVAL_SH" ]] || { echo "ERROR: diff-survival-check.sh not found (checked all three paths) — conflict preservation guard unavailable" >&2; exit 1; }

When to use

• After git merge origin/main or git rebase origin/main stops on conflicts.
• From /fixpr when mergeStateStatus / mergeable indicates conflicts — run this skill before hand-editing every file (see cross-link in .claude/skills/fixpr/SKILL.md Step 6).

Hard rules

1. git fetch origin main first — always refresh main before inspecting conflicts (the helper does this unless --skip-fetch).
2. Snapshot the diff before resolving (issue #757) — immediately after the fetch, run "$DIFF_SURVIVAL_SH" snapshot --if-absent. Marker-free is not the same as change-preserving: a resolution that quietly keeps the other side satisfies git while dropping the entire change the PR exists to deliver. --if-absent keeps a snapshot /fixpr already took; when this skill is entered mid-rebase with nothing on disk, the guard reconstructs the baseline from the rebase's orig-head (never from the half-replayed HEAD).
3. Do not git commit — only git add paths that are fully marker-free after simple resolution. The caller continues merge/rebase or commits separately.
4. When in doubt, complex — the resolver is intentionally conservative; anything ambiguous stays in the file with conflict markers and appears in the report.