Change Pack

Generate a complete Git writing pack (Branch Name + Commit Message + PR Content) from one shared diff context.

Why this skill exists: Reading and analyzing diffs is expensive (tokens + time). This skill reads the diff once, builds a shared context, then generates all three outputs from that same context. Much more efficient than calling three separate skills.

PR Title and PR Description are output as separate copy-ready blocks because GitHub has two different input fields.

Context Reuse (Step 0)

See _shared/context-reuse.md for the context reuse protocol.

If DIFF_CONTEXT or RAW_DIFF is already provided, use it directly to save time and tokens.

Build Shared DIFF_CONTEXT (Step 1)

See _shared/branch-diff-gathering.md for branch diff collection details.

Use branch-level diff as primary source (compare current branch against base branch).