Start Ticket

Fetch Azure DevOps ticket, resolve repo, create branch, explore codebase, create implementation plan.

Read ~/.claude/skills/_ado-shared.md for auth, env vars, fetch/update ticket patterns, and Windows/MSYS2 notes.

Workflow

1. Fetch ticket via ADO REST API (see shared)
2. Resolve repo from Custom.Repository field (see below)
3. Find upstream remote in the resolved repo (see below)
4. Create branch: git fetch <upstream> master && git checkout -b <ticketnr>-<short-desc> <upstream>/master
5. Update ticket state to "In Progress" via REST API (see shared)
6. Explore codebase using Task tool with Explore subagent
7. Ask clarifying questions about implementation approach
8. Enter plan mode and write implementation plan

Repo Resolution

The Custom.Repository field contains the GitHub repo name (semicolon-separated if multiple).

1. Read Custom.Repository from fetched work item fields
2. If present: take first value (before ;), find matching directory in /c/dev/ (local dir name matches repo name)
3. If absent: fall back to ado-investigate skill
4. cd into the resolved repo directory before continuing

Upstream Remote Detection

Remote names vary. Detect dynamically:

git remote -v | grep 'bluebillywig/' | grep fetch | head -1 | awk '{print $1}'

If none found, list remotes and ask user.

Branch Naming

Format: <ticketnr>-<short-description> (kebab-case, max 4-5 words from title)

Examples: 17858-shorts-shelf-autoplay, 17432-devicePixelRatio-thumbs

CRITICAL: Ticket Number in Branch + PR Title

Always include the ADO ticket number in:

1. Branch name: <ticketnr>-<short-desc>
2. PR title: #<ticketnr> suffix — e.g. Show metadata toggle #18014

Exploration Strategy

Use Task tool with subagent_type: Explore to understand:

• Relevant components and their location
• Existing patterns and conventions
• Related props/configuration options
• How similar features are implemented

Plan Structure

# Plan: <ticketnr> - <short title>

## Context
<1-2 sentences from ticket description>

## Implementation
1. <Step with file path and specific change>
2. <Step with file path and specific change>

## Files to Modify
- <file path> - <what changes>

## Verification
1. <How to test the changes>

Common Mistakes