Group Items to Milestone

Assign backlog items to a GitHub milestone. Bridges .claude/backlog/ per-item files → GitHub Issues → milestone assignment.

API references: milestones.md | issue-stories.md | projects-v2.md

Arguments

• {milestone-number} — required
• Optional filter: P0, P1, P2, or title substring to pre-filter the list

/group-items-to-milestone 3
/group-items-to-milestone 3 P1
/group-items-to-milestone 3 github

Workflow

Step 1: Resolve Milestone

Call backlog_list_milestones(state="open") and filter the returned list for the entry where number == {number}. If not found, call backlog_list_milestones(state="all") and filter again. Extract title, state, open_issues, closed_issues from the matching entry.

If milestone not found or closed, report and stop.

Step 2: Load Backlog Items

Call the mcp__plugin_dh_backlog__backlog_list tool. Parse the returned dict — each entry in items has title, priority, issue, plan, status, milestone, file_path, groomed. Filter items by section (P0, P1, P2, Ideas). Apply any title filter.

For each item determine status:

• Has issue — **Issue**: #N field present → verify state via backlog_list_issues(state="open") — check if issue number appears in the returned list
• No issue — P0/P1 item without issue → flagged for creation offer
• Already in milestone — issue already assigned to this milestone → shown pre-checked

Step 3: Present Selection

Milestone #{N}: {title}

P0
  1. [✓] SAM: Error Recovery — Issue #12 (open)
  2. [ ] bash-development: Fix inaccuracies — no issue yet

P1
  3. [✓] gitlab-skill: Remove URL — Issue #8 (open)
  4. [ ] create-backlog-item skill — no issue yet
  5. [~] commitlint verify flag — Issue #5 (already in this milestone)

Legend: [✓] has issue  [ ] needs issue created  [~] already assigned

Use AskUserQuestion: "Which items to add? (comma-separated numbers, or 'all', or 'P0', 'P1')"

Step 4: Create Missing Issues

For each selected item with no **Issue**: #N:

Build story-format body (Story / Description / Acceptance Criteria / Context). Create issue using the Python script (preferred — handles label creation automatically):

uv run .claude/skills/gh/scripts/github_project_setup.py issue create \
  --title "{type}: {title}" \
  --body "{story body}" \
  --priority-label "priority:{p0|p1|p2|idea}" \
  --type-label "type:{feature|bug|refactor|docs|chore}" \
  --milestone {number}

The backlog script automatically writes issue: '#N' back to the item's metadata.

Skip issue creation for P2/Ideas items — assign by milestone number only if they already have an issue.

Step 5: Assign Existing Issues

For selected items that already have issues but are not yet in this milestone:

uv run .claude/skills/gh/scripts/github_project_setup.py issue set-milestone \
  --issue {issue_number} \
  --milestone {milestone_number}

Step 6: Update Project V2 Status

Set Status = Backlog for each newly assigned item:

uv run .claude/skills/gh/scripts/github_project_setup.py project update-status \
  --issue {issue_number} \
  --status Backlog

Step 7: Report

Milestone #{N}: {title}

Assigned {count} items:
  Issue #12: SAM: Error Recovery (existing issue)
  Issue #14: create-backlog-item skill (new issue created)
  Issue #5:  commitlint verify flag (already assigned — skipped)

Per-item files updated with {created_count} new issue numbers.

Next step: /start-milestone {number}

Error Handling

• Milestone not found: call backlog_list_milestones(state="open") and list available milestones, then stop.
• Issue creation fails: log error per item, continue with remaining.
• No items match filter: report and show available sections.
• Label not found: github_project_setup.py issue create handles label creation automatically via _ensure_label().