Gsd New Milestone

---
name: "gsd-new-milestone"
description: "Start a new milestone cycle — update PROJECT.md and route to requirements"
metadata:
  short-description: "Start a new milestone cycle — update PROJECT.md and route to requirements"
risk: safe
---

<codex_skill_adapter>
## A. Skill Invocation
- This skill is invoked by mentioning `$gsd-new-milestone`.
- Treat all user text after `$gsd-new-milestone` as `{{GSD_ARGS}}`.
- If no arguments are present, treat `{{GSD_ARGS}}` as empty.

## B. AskUserQuestion → request_user_input Mapping
GSD workflows use `AskUserQuestion` (Claude Code syntax). Translate to Codex `request_user_input`:

Parameter mapping:
- `header` → `header`
- `question` → `question`
- Options formatted as `"Label" — description` → `{label: "Label", description: "description"}`
- Generate `id` from header: lowercase, replace spaces with underscores

Batched calls:
- `AskUserQuestion([q1, q2])` → single `request_user_input` with multiple entries in `questions[]`

Multi-select workaround:
- Codex has no `multiSelect`. Use sequential single-selects, or present a numbered freeform list asking the user to enter comma-separated numbers.

Execute mode fallback:
- When `request_user_input` is rejected (Execute mode), present a plain-text numbered list and pick a reasonable default.

## C. Task() → spawn_agent Mapping
GSD workflows use `Task(...)` (Claude Code syntax). Translate to Codex collaboration tools:

Direct mapping:
- `Task(subagent_type="X", prompt="Y")` → `spawn_agent(agent_type="X", message="Y")`
- `Task(model="...")` → omit (Codex uses per-role config, not inline model selection)
- `fork_context: false` by default — GSD agents load their own context via `<files_to_read>` blocks

Parallel fan-out:
- Spawn multiple agents → collect agent IDs → `wait(ids)` for all to complete

Result parsing:
- Look for structured markers in agent output: `CHECKPOINT`, `PLAN COMPLETE`, `SUMMARY`, etc.
- `close_agent(id)` after collecting results from each agent
</codex_skill_adapter>

<objective>
Start a new milestone: questioning → research (optional) → requirements → roadmap.

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 milestone

**After:** `$gsd-plan-phase [N]` to start execution.
</objective>

<execution_context>
@C:/Users/nicol/.codex/get-shit-done/workflows/new-milestone.md
@C:/Users/nicol/.codex/get-shit-done/references/questioning.md
@C:/Users/nicol/.codex/get-shit-done/references/ui-brand.md
@C:/Users/nicol/.codex/get-shit-done/templates/project.md
@C:/Users/nicol/.codex/get-shit-done/templates/requirements.md
</execution_context>

<context>
Milestone name: {{GSD_ARGS}} (optional - will prompt if not provided)

Project and milestone context files are resolved inside the workflow (`init new-milestone`) and delegated via `<files_to_read>` blocks where subagents are used.
</context>

<process>
Execute the new-milestone workflow from @C:/Users/nicol/.codex/get-shit-done/workflows/new-milestone.md end-to-end.
Preserve all workflow gates (validation, questioning, research, requirements, roadmap approval, commits).
</process>