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GUIDE SDD (Gated, Unified, Intent-Driven Engineering) - the spec-driven development method's Claude Code plugin: install/update/doctor the vendored spine, run the gates, session-lifecycle commands, persona edit-guard.
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GUIDE SDD host affordances: sdd-init / sdd-update / sdd-doctor / sdd-gates / sdd-persona skills, /wrap /stash /unstash, and the persona edit-guard hook. The spine itself is vendored into your repo by sdd-init and stays canonical there.
9 skills · hooks
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