github-scrum（GitHub scrum 搜索）

GitHub Scrum

Manage software projects using Scrum on GitHub, adapted for solo developers and small teams (1-3 people). This skill maps Scrum artifacts and events to GitHub primitives (Issues, Milestones, Labels, Releases) and automates project setup and sprint management.

Reference: The 2020 Scrum Guide.

Tooling Strategy

Use the gh CLI for all GitHub operations. It is the primary and default tool for this skill.

Always set GH_PAGER=cat when running gh commands to prevent interactive pagers from blocking script execution.

For a full command reference, see references/tooling.md.

Cross-platform Date Generation

When generating ISO 8601 dates for milestone due_on fields, use a portable snippet — date -d is GNU/Linux only and fails on macOS:

# Portable (Linux + macOS) — recommended
DUE_DATE=$(python3 -c "from datetime import datetime, timedelta; print((datetime.utcnow()+timedelta(days=14)).strftime('%Y-%m-%dT00:00:00Z'))")

# Linux/GNU only
DUE_DATE=$(date -u -d "+14 days" +%Y-%m-%dT00:00:00Z)

# macOS/BSD only
DUE_DATE=$(date -u -v+14d +%Y-%m-%dT00:00:00Z)

Always use the Python one-liner when the target platform is unknown. Adjust days=14 to match the sprint length.

Scrum → GitHub Mapping

No formal role separation. The user acts as Product Owner, Scrum Master, and Developer.

Labels System

Use namespaced labels with prefixes for filtering. Create all labels during project initialization.

# Remove default labels
GH_PAGER=cat gh label list --json name -q '.[].name' | xargs -I {} GH_PAGER=cat gh label delete {} --yes

GH_PAGER=cat gh label create "type:feature"       --color "1D76DB" --description "New functionality"
GH_PAGER=cat gh label create "type:bug"           --color "D73A4A" --description "Something isn't working"
GH_PAGER=cat gh label create "type:chore"         --color "0E8A16" --description "Maintenance, refactoring, tooling"
GH_PAGER=cat gh label create "type:spike"         --color "D4C5F9" --description "Research or investigation (timeboxed)"
GH_PAGER=cat gh label create "type:docs"          --color "0075CA" --description "Documentation only"
GH_PAGER=cat gh label create "priority:critical"  --color "B60205" --description "Must fix immediately — blocks everything"
GH_PAGER=cat gh label create "priority:high"      --color "D93F0B" --description "Must be in the next sprint"
GH_PAGER=cat gh label create "priority:medium"    --color "FBCA04" --description "Should be done soon"
GH_PAGER=cat gh label create "priority:low"       --color "C2E0C6" --description "Nice to have, do when possible"
GH_PAGER=cat gh label create "size:xs"            --color "EDEDED" --description "Trivial — less than 1 hour"
GH_PAGER=cat gh label create "size:s"             --color "D4C5F9" --description "Small — 1 to 4 hours"
GH_PAGER=cat gh label create "size:m"             --color "BFD4F2" --description "Medium — 4 to 8 hours"
GH_PAGER=cat gh label create "size:l"             --color "FBCA04" --description "Large — 1 to 2 days"
GH_PAGER=cat gh label create "size:xl"            --color "D93F0B" --description "Extra large — more than 2 days (split it)"
GH_PAGER=cat gh label create "status:ready"       --color "0E8A16" --description "Refined and ready for sprint selection"
GH_PAGER=cat gh label create "status:in-progress" --color "1D76DB" --description "Currently being worked on"
GH_PAGER=cat gh label create "status:blocked"     --color "B60205" --description "Waiting on something external"
GH_PAGER=cat gh label create "status:review"      --color "D4C5F9" --description "In code review or waiting for feedback"
GH_PAGER=cat gh label create "mvp"                --color "FEF2C0" --description "Part of the Minimum Viable Product"
GH_PAGER=cat gh label create "tech-debt"          --color "E4E669" --description "Technical debt — address proactively"
GH_PAGER=cat gh label create "retrospective"      --color "C5DEF5" --description "Sprint retrospective issue"

Project Initialization

1. Define the Product Goal

Ask the user: *"In 1-2 sentences, what is the product and what problem does it solve?"*

Create a pinned issue titled Product Goal:

GH_PAGER=cat gh issue create \
  --title "Product Goal" \
  --body "## Vision\n\n<user's answer>\n\n## Target Users\n\n<who benefits>\n\n## Success Criteria\n\n- [ ] <measurable outcome>" \
  --label "type:docs"

GH_PAGER=cat gh issue pin <issue-number>

2. Create Labels

Run the label creation commands from the Labels System section above.

3. Identify the MVP

For each feature idea, apply: *"Without this, does the product make no sense?"*

• Yes → mvp + priority:high or priority:critical
• Important but not essential → priority:medium
• Nice to have → priority:low

Keep the MVP to 3-7 features. Create each as an issue with Acceptance Criteria as a checklist:

GH_PAGER=cat gh issue create \
  --title "<feature title>" \
  --body "## Description\n\n<what and why>\n\n## Acceptance Criteria\n\n- [ ] <criterion 1>\n- [ ] <criterion 2>\n\n## Notes\n\n<technical notes, constraints, dependencies>" \
  --label "type:feature,priority:high,size:m,mvp"

4. Create the First Sprint

# Generate due date (portable — works on Linux and macOS)
DUE_DATE=$(python3 -c "from datetime import datetime, timedelta; print((datetime.utcnow()+timedelta(days=14)).strftime('%Y-%m-%dT00:00:00Z'))")

GH_PAGER=cat gh api repos/{owner}/{repo}/milestones --method POST \
  --field title="Sprint 1" \
  --field description="Sprint Goal: <what makes this sprint valuable>" \
  --field due_on="$DUE_DATE"

Assign issues to the milestone:

GH_PAGER=cat gh issue edit <number> --milestone "Sprint 1"

5. Create Repository Scaffolding

Read templates and workflows from the reference files and create these files:

• Issue templates → see references/templates.md for backlog-item.yml and bug-report.yml
• PR template → see references/templates.md for PULL_REQUEST_TEMPLATE.md
• Labeler config → see references/templates.md for labeler.yml and release-drafter.yml
• GitHub Actions workflows → see references/workflows.md for labeler.yml, stale.yml, release-drafter.yml, auto-assign.yml

mkdir -p .github/ISSUE_TEMPLATE .github/workflows

Sprint Lifecycle

Sprint Planning

1. Review the backlog — list status:ready issues with no milestone: GH_PAGER=cat gh issue list --label "status:ready" --milestone "" \ --json number,title,labels \ --jq '.[] | "#\(.number) \(.title) [\(.labels | map(.name) | join(", "))]"'
2. Propose sprint selection based on: critical > high > medium > low, MVP items first, capacity fits duration.
3. Define the Sprint Goal — ask: *"What is the single most important outcome of this sprint?"*
4. Create milestone and assign issues: # Get next sprint number SPRINT_NUM=$(GH_PAGER=cat gh api repos/{owner}/{repo}/milestones --jq 'length + 1') # Generate due date (portable — works on Linux and macOS) DUE_DATE=$(python3 -c "from datetime import datetime, timedelta; print((datetime.utcnow()+timedelta(days=14)).strftime('%Y-%m-%dT00:00:00Z'))") # Create milestone GH_PAGER=cat gh api repos/{owner}/{repo}/milestones --method POST \ --field title="Sprint ${SPRINT_NUM}" \ --field description="Sprint Goal: <goal>" \ --field due_on="$DUE_DATE" # Assign issues GH_PAGER=cat gh issue edit <number> --milestone "Sprint ${SPRINT_NUM}"
5. Mark issues as in-progress when work begins: GH_PAGER=cat gh issue edit <number> --add-label "status:in-progress" --remove-label "status:ready"

During the Sprint

• Progress report: MILESTONE="Sprint N" echo "=== Open ===" && GH_PAGER=cat gh issue list --milestone "$MILESTONE" --state open --json number,title -q '.[] | "#\(.number) \(.title)"' echo "=== Closed ===" && GH_PAGER=cat gh issue list --milestone "$MILESTONE" --state closed --json number,title -q '.[] | "#\(.number) \(.title)"'
• Identify blockers: GH_PAGER=cat gh issue list --label "status:blocked" --json number,title -q '.[] | "#\(.number) \(.title)"'
• Update status labels as issues move:

- Starting → status:in-progress (remove status:ready) - PR open → status:review (remove status:in-progress) - Blocked → status:blocked (remove status:in-progress) - Done → remove all status:*, close the issue

Sprint Review

1. List completed issues (closed on milestone).
2. Move carryover issues back to backlog: GH_PAGER=cat gh issue edit <number> --milestone "" \ --remove-label "status:in-progress" --remove-label "status:blocked" \ --remove-label "status:review" --add-label "status:ready"
3. Create a release if there is a usable Increment: GH_PAGER=cat gh release create v<version> --title "Sprint N Release" \ --notes "## What's New\n\n$(GH_PAGER=cat gh issue list --milestone 'Sprint N' --state closed --json number,title -q '.[] | "- #\(.number) \(.title)"')\n\n## Sprint Goal\n\n<goal summary>"
4. Close the milestone: MILESTONE_NUM=$(GH_PAGER=cat gh api repos/{owner}/{repo}/milestones --jq '.[] | select(.title=="Sprint N") |.number') GH_PAGER=cat gh api repos/{owner}/{repo}/milestones/${MILESTONE_NUM} --method PATCH --field state="closed"

Sprint Retrospective

GH_PAGER=cat gh issue create \
  --title "Retrospective: Sprint N" \
  --label "retrospective" \
  --body "## What went well?\n\n- \n\n## What could be improved?\n\n- \n\n## Action items for next sprint\n\n- [ ] \n\n## Metrics\n\n- **Planned:** X issues\n- **Completed:** Y issues\n- **Carried over:** Z issues\n- **Sprint Goal met:** Yes/No"

Backlog Refinement

Split Large Issues (size:xl)

1. Create sub-issues linked with "Part of #N": GH_PAGER=cat gh issue create \ --title "<specific sub-task>" \ --body "Part of #<original-number>\n\n## Acceptance Criteria\n\n- [] <specific criterion>" \ --label "type:feature,priority:high,size:m"
2. Close the original with a comment listing the new issues (remove status:* labels first): GH_PAGER=cat gh issue edit <original-number> --remove-label "status:ready" --remove-label "status:in-progress" --remove-label "status:blocked" --remove-label "status:review" 2>/dev/null GH_PAGER=cat gh issue close <original-number> --comment "Split into #<sub1>, #<sub2>, #<sub3>"

Add Missing Details

For issues without acceptance criteria: propose concrete criteria, update body, add status:ready:

GH_PAGER=cat gh issue edit <number> --body "<refined body with acceptance criteria>"
GH_PAGER=cat gh issue edit <number> --add-label "status:ready"

Reprioritize

List open backlog items (no milestone), review with the user, update priority labels:

GH_PAGER=cat gh issue list --state open --milestone "" --json number,title,labels \
  -q '.[] | "#\(.number) \(.title) [\(.labels | map(.name) | join(", "))]"'

Definition of Done

Every issue must meet these criteria before closing:

• Code implemented and functional
• All acceptance criteria from the issue are met
• Tests written and passing (when applicable)
• No lint or compilation errors
• Self-reviewed (read your own diff before closing)
• Documentation updated (if user-facing behavior changed)
• All status:* labels removed from the issue
• Issue closed with reference to the commit or PR

Applying the Definition of Done

When the user says an issue is done:

1. Check acceptance criteria — read the issue, confirm each criterion is checked.
2. Check code quality — run lint/tests if configured.
3. **Remove status:* labels and close** with a reference: GH_PAGER=cat gh issue edit <number> --remove-label "status:ready" --remove-label "status:in-progress" --remove-label "status:blocked" --remove-label "status:review" 2>/dev/null GH_PAGER=cat gh issue close <number> --comment "Done in <commit-sha or PR #>"

If any criterion is not met, tell the user what's missing before closing.

Closing or Merging a PR

When a PR is closed or merged, **remove all status:* labels from the linked issue**. Status labels represent transient workflow state and must not remain as permanent metadata after the work is done.

GH_PAGER=cat gh issue edit <linked-issue-number> --remove-label "status:ready" --remove-label "status:in-progress" --remove-label "status:blocked" --remove-label "status:review" 2>/dev/null

When to Apply This Skill

• Starting a new project and need to organize work from day one
• Planning an MVP or defining what to build first
• Managing a Product Backlog — creating, refining, prioritizing issues
• Running Sprints — planning, tracking, reviewing, retrospecting
• Setting up labels and milestones for a Scrum workflow
• Asking for a progress report or sprint status
• Performing backlog refinement — splitting issues, adding acceptance criteria
• Closing a sprint and creating a release

Adaptation Guidelines

Solo developer: Skip Daily Scrum. Use 1-week sprints. Agent acts as thinking partner.

Small team (2-3): Use all events. Use 2-week sprints. Retrospectives are more valuable with multiple perspectives.

Existing project: Skip MVP identification. Create labels, triage existing issues, start sprinting from current state.