Plan Issue Creator

Create one canonical planning issue and avoid duplicates.

Trigger

Use when the user says:

• ok create an issue
• create a plan
• create issue for this task
• create a plan for issue #<n>

Workflow

1. Build the issue title and section content from the current local discussion.
2. Run:

gh-csi workflow create-or-reuse-plan-issue \
  --issue "<issue or url, optional>" \
  --title "<title>" \
  --objective "<objective>" \
  --scope "<scope>" \
  --constraints "<constraints>" \
  --acceptance "<acceptance criteria>" \
  --decisions "<latest decisions>" \
  --open-questions "<open questions>" \
  --json

3. Existing issue adoption rule:
   • If --issue is provided and issue is not yet canonical, script preserves existing title/body by mapping them into canonical sections (objective/scope) instead of replacing with placeholders.