prepare-changesets

SKILL.md

Follow the spec and keep the source branch immutable. Use an incremental, append-only planning approach: propose the next changeset, validate it, then append the plan.

Require a clean working tree and valid base/source branches. Treat the source branch as immutable reference state. Never modify, rebase, or rewrite it as part of this process. Preflight simulates merging the source into the base on a temporary branch and runs the test command on the source branch. The source

branch must include the current base HEAD; if it is behind, stop unless the user explicitly approves proceeding.

GitHub 特定的工作流程，用於將大型、可審查的源分支重新組合為較小變更集的有序鏈（堆疊分支 + GitHub PR），從而保留行為並提高可審查性。通過 gh CLI 使用 GitHub PR 堆棧時使用，以拆分整體分支、創建堆疊 PR、合併已審核的變更集以及在合併後傳播/更新下游 PR 基礎。 來源：shaug/agent-scripts。

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