What problem does it solve? When opening multiple dependent pull requests against the same integration base, unclear branch names and titles make merge order ambiguous and cause wrong-base PRs. This Skill enforces a canonical naming convention so PR(N+1) is always based on PR(N) and the merge sequence is visible in the PR title. ## Core Features & Use Cases - Canonical branch naming: Branches follow the stack/NN-short-topic format with zero-padded numbering derived from the repo's integration base. - Structured PR titles: Titles follow [NN/TT → <integration-base>] <type>: <summary> so stack position and target base are obvious at a glance. - Merge-order and base rules: NN=00 targets the integration branch, NN>00 targets stack/(NN-1)-…, and PR(N+1) is rebased on PR(N) before opening. - Use Case: While shipping a security remediation split into four dependent PRs, name them stack/00-… through stack/03-…, title each [NN/4 → merged] fix: …, and merge them in order without wrong-base conflicts. ## Quick Start Ask the agent to create a stacked PR series for your dependent changes using the stack/NN branch naming and [NN/TT → base] title format.