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From GSD Core
Starts a new milestone cycle: questions what's next, optionally researches, then writes requirements and a roadmap. Updates PROJECT.md with new goals.
How this skill is triggered — by the user, by Claude, or both
Slash command
/gsd-core:gsd-new-milestone [milestone name, e.g., 'v1.1 Notifications'][milestone name, e.g., 'v1.1 Notifications']This skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
<objective>
Brownfield equivalent of new-project. Project exists, PROJECT.md has history. Gathers "what's next", updates PROJECT.md, then runs requirements → roadmap cycle.
Creates/Updates:
.planning/PROJECT.md — updated with new milestone goals.planning/research/ — domain research (optional, NEW features only).planning/REQUIREMENTS.md — scoped requirements for this milestone.planning/ROADMAP.md — phase structure (continues numbering).planning/STATE.md — reset for new milestoneAfter: /gsd-plan-phase [N] to start execution.
<execution_context>
@/.claude/gsd-core/workflows/new-milestone.md
@/.claude/gsd-core/references/questioning.md
@/.claude/gsd-core/references/ui-brand.md
@/.claude/gsd-core/templates/project.md
@~/.claude/gsd-core/templates/requirements.md
</execution_context>
Project and milestone context files are resolved inside the workflow (init new-milestone) and delegated via <files_to_read> blocks where subagents are used.
npx claudepluginhub open-gsd/gsd-corePlans milestones step-by-step with review gates: grill-design session, then goal contract todo task specs with user approval at each phase.
Manages project milestones: create new cycles with phases, complete/archive versions, preview changes, audit integration, analyze gaps. For structured delivery checkpoints.
Initializes a new project with structured planning: questioning, research, requirements, and roadmap creation.