/analyze-diff

Explains branch changes at implementation level with detailed code analysis.

Progress Checklist

- [ ] Step 1: Gather inputs
- [ ] Step 2: Resolve paths
- [ ] Step 3: Collect diff
- [ ] Step 4: Invoke diff-analyzer agent
- [ ] Step 5: Write report
- [ ] Step 6: Report summary in Japanese

Steps

1. •

   Gather inputs:

   • •TARGET: Branch or commit range to analyze
   • •TICKET_ID: Target ticket for output
   • •If not provided, use AskUserQuestion to clarify these
2. •

   Resolve paths:

   • •TICKET_PATH = find $TICKETS_DIR -type d -name "$TICKET_ID" (first match)
   • •OUTPUT_PATH = TICKET_PATH (used in Step 5 for report output)
3. •

   Collect diff:

   • •Execute git diff $TARGET → raw_diff
   • •Execute git diff $TARGET --stat → file_stats
   • •Read modified files for context → CHANGED_FILES
4. •

   Invoke diff-analyzer agent via Task tool:

DIFF_DATA:
  raw_diff: {raw_diff from Step 3}
  target: {TARGET from Step 1}
  file_stats: {file_stats from Step 3}

CHANGED_FILES: {modified files with content from Step 3}
LANGUAGE: "ja"

If ANALYSIS_ERROR=true → display ERROR_MESSAGE, END Otherwise → ANALYSIS_RESULT = agent output

1. •

   Write report to OUTPUT_PATH as diff-navigator-report.md:

   • •Include ANALYSIS_RESULT
   • •Report body in Japanese, file paths in English
2. •

   Report summary in Japanese