Description

Updates the /create-bug Claude Code skill command to include a full root cause analysis workflow (Step 6) with three phases:

• 6a: Investigate root cause — trace through the code to identify exact files, lines, and logic
• 6b: Identify regression PRs — check git history against previous releases
• 6c: Scope analysis — search for same pattern across codebase, file separate bugs for other affected features

Also updates the comment format to include all required sections.

Changelog

CHANGELOG entry: null

Related issues

Fixes:

MMQA-1523

Manual testing steps

Feature: Create Bug Skill Root Cause Analysis

  Scenario: user runs /create-bug and opts into root cause investigation
    Given user has Claude Code open in the metamask-mobile repo

    When user runs /create-bug and files a bug report
    And user opts into root cause investigation
    Then Claude performs root cause investigation (6a)
    And Claude identifies regression PRs by comparing release branches (6b)
    And Claude performs scope analysis to find same pattern elsewhere (6c)
    And Claude posts a comment with summary, regression PRs, error flow, scope of impact, key files, suggested fix, and related bug links

Screenshots/Recordings

Before

N/A

After

Run /create-bug in Claude Code terminal and opt into root cause investigation to see the full 3-phase workflow.

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I've included tests if applicable
• I've documented my code using JSDoc format if applicable
• I've applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.