Mergify CLI Skills

Claude Code: /plugin marketplace add anthropics/claude-plugins-official → /plugin install mergify@claude-plugins-official

Six skills wrap the Mergify command-line tool, and the stack skill reads like it was written after watching agents fail. Every history edit has a non-interactive equivalent — edit, reorder, move, fixup, squash, reword, drop — because an interactive rebase hangs forever in an agent context; the skill even warns that calling stack edit without a commit argument falls back to the interactive path and will hang. Two rules follow from how the tool behaves: the pull request title and body are copied from the commit message, so ticket references and test plans belong in the commit rather than added afterwards, and pull requests must never be edited through another GitHub client because the next push overwrites them. The queue skill covers the other half, including why a request was dequeued and how to inspect one that has already left the queue.