git-conflict-resolve

name	git-conflict-resolve
description	[Git] Resolve git merge/cherry-pick/rebase conflicts with backup, analysis, and reporting Use when this capability is needed.

[IMPORTANT] Use TaskCreate to break ALL work into small tasks BEFORE starting — including tasks for each file read. This prevents context loss from long files. For simple tasks, AI MUST ATTENTION ask user whether to skip.

Prerequisites: MUST ATTENTION READ before executing:

Understand Code First — HARD-GATE: Do NOT write, plan, or fix until you READ existing code.

1. Search 3+ similar patterns (grep/glob) — cite file:line evidence
2. Read existing files in target area — understand structure, base classes, conventions
3. Run python .claude/scripts/code_graph trace <file> --direction both --json when .code-graph/graph.db exists
4. Map dependencies via connections or callers_of — know what depends on your target
5. Write investigation to .ai/workspace/analysis/ for non-trivial tasks (3+ files)
6. Re-read analysis file before implementing — never work from memory alone
7. NEVER invent new patterns when existing ones work — match exactly or document deviation

BLOCKED until: - [ ] Read target files - [ ] Grep 3+ patterns - [ ] Graph trace (if graph.db exists) - [ ] Assumptions verified with evidence

Quick Summary

Goal: Resolve git merge/cherry-pick/rebase conflicts with backup, analysis, and structured reporting.

Workflow:

1. Backup — Create safety backup of current state
2. Analyze — Identify conflict types and affected files
3. Resolve — Apply resolution strategy per conflict
4. Report — Generate conflict resolution report

Key Rules:

• Always create backup before resolving conflicts
• Prefer preserving both sides' intent over arbitrary choice
• Generate resolution report for audit trail

Be skeptical. Apply critical thinking, sequential thinking. Every claim needs traced proof, confidence percentages (Idea should be more than 80%).

Purpose

Systematically resolve git conflicts (merge, cherry-pick, rebase) with:

1. Backup of all conflicted files before resolution
2. Per-file conflict analysis with root cause explanation
3. Resolution with documented rationale
4. Comprehensive report generation

Variables

OPERATION: auto-detect (cherry-pick, merge, rebase) from git state REPORT_PATH: plans/reports/conflict-resolution-{date}-{operation}-{source}.md BACKUP_PATH: .ai/workspace/conflict-backups-{date}/

Workflow

Step 1: Detect conflict state

# Detect operation type
git status  # Check for "cherry-pick in progress", "merge in progress", etc.

# List all conflicted files
git diff --name-only --diff-filter=U  # Unmerged files (both modified)
git status --short | grep "^DU\|^UD\|^UU\|^AA\|^DD"  # All conflict types

Classify each conflict:

• DU (Deleted by us): File exists on source but not on target branch
• UD (Deleted by them): File exists on target but deleted by source
• UU (Both modified): Both branches modified the same file
• AA (Both added): Both branches added a file at the same path
• DD (Both deleted): Both branches deleted the file

Step 2: Create backup files

MANDATORY before any resolution.

mkdir -p {BACKUP_PATH}

# For each conflicted file, copy WITH conflict markers preserved
cp <conflicted-file> {BACKUP_PATH}/<filename>.conflict

Create a TaskCreate item for each conflicted file PLUS report and review tasks.

Step 3: Analyze each conflict (per file)

For each conflicted file, perform this analysis:

3a. Understand the conflict type

• DU/UD (deleted by one side): Check if the file was introduced in a commit not present on the target branch. Read the file content from the source commit to understand what it provides.
• UU (both modified): Read the conflict markers. Identify what each side changed and why.

3b. Read both versions

# For UU conflicts: read the file with conflict markers
# Look for <<<<<<< HEAD / ======= / >>>>>>> markers

# For DU conflicts: get the source version
git show <source-commit>:<file-path>

# Optionally extract clean versions
git show HEAD:<file-path> > {BACKUP_PATH}/<filename>.ours
git show <source-commit>:<file-path> > {BACKUP_PATH}/<filename>.theirs

3c. Analyze dependencies

• Check callers: Do other files reference methods/classes in this file? Are caller names compatible?
• Check constructor/DI: Does the resolution require new dependencies?
• Check cross-file consistency: Will the resolution break other files?

3d. Determine resolution strategy

Conflict Pattern	Resolution Strategy
DU: File needed by feature	Accept theirs (add the file)
DU: File not needed	Keep ours (skip the file)
UU: Non-overlapping changes	Merge both (keep all changes)
UU: Overlapping, source modifies methods not on target	Keep ours if methods don't exist on target
UU: Overlapping, both modify same method	Manual merge with careful analysis
UU: Schema/snapshot files	Accept theirs for new entities, merge for modified

Step 4: Resolve each conflict

Apply the determined strategy:

# Accept theirs (source version)
git checkout --theirs <file> && git add <file>

# Keep ours (target version)
git checkout --ours <file> && git add <file>

# Manual merge: Edit the file to remove conflict markers, then:
git add <file>

For manual merges:

1. Remove <<<<<<< HEAD, =======, >>>>>>> <commit> markers
2. Keep the correct content from each side
3. Verify no leftover conflict markers: git diff --check

Step 5: Verify resolution

# Check no unmerged files remain
git diff --name-only --diff-filter=U

# Check no leftover conflict markers
git diff --check

# Review overall status
git status

Step 6: Complete the operation

# For cherry-pick
git cherry-pick --continue --no-edit

# For merge
git commit  # (merge commit is auto-prepared)

# For rebase
git rebase --continue

Step 7: Generate report

Create a comprehensive report at {REPORT_PATH} with:

1. Header: Date, source commit/branch, target branch, result commit
2. Summary: Total conflicts, categories, overall risk
3. Per-file details:
   • File path
   • Conflict type (DU/UU/etc.)
   • Root cause (why the conflict occurred)
   • Resolution chosen (accept theirs/keep ours/manual merge)
   • Rationale (why this resolution was chosen)
   • Risk level (Low/Medium/High)
4. Summary table: All files with conflict type, resolution, risk
5. Root cause analysis: Common patterns across conflicts
6. Recommendations: Follow-up actions, build verification, etc.

Step 8: Final review

• Verify report is complete and accurate
• Check that all backup files exist
• Confirm build passes (if applicable)
• Flag any Medium/High risk resolutions for user attention

Resolution Decision Framework

When to "Accept Theirs" (source version)

• File is NEW (DU) and required by the feature being cherry-picked/merged
• File contains schema/config additions needed by new entities
• Source has strictly more content (e.g., empty class → populated class)

When to "Keep Ours" (target version)

• Source modifies methods that don't exist on target (added by uncommitted prerequisite)
• Source renames methods/types that target callers still reference by old names
• Changes are not required for the feature being brought in

When to "Manual Merge"

• Both sides have legitimate changes that need to coexist
• Schema files where both add new entries (keep both)
• Config files where both add new sections

Risk Assessment

Risk	Criteria	Action
Low	New file, no existing code affected	Proceed
Medium	Method changes, caller compatibility uncertain	Flag in report, recommend build verification
High	Breaking changes, cross-service impact	Require user confirmation before proceeding

Notes

• Always create backup files BEFORE any resolution
• Never force-resolve without understanding the root cause
• For complex conflicts (>3 conflict regions in one file), extract both clean versions for side-by-side analysis
• Check for prerequisite commits: if a cherry-pick modifies files from prior commits not on target, note this in the report
• Use git diff <commit>^..<commit> -- <file> to see the actual diff of a specific commit (not the full file state)

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Closing Reminders

• MANDATORY IMPORTANT MUST ATTENTION break work into small todo tasks using TaskCreate BEFORE starting
• MANDATORY IMPORTANT MUST ATTENTION search codebase for 3+ similar patterns before creating new code
• MANDATORY IMPORTANT MUST ATTENTION cite file:line evidence for every claim (confidence >80% to act)
• MANDATORY IMPORTANT MUST ATTENTION add a final review todo task to verify work quality
• MANDATORY IMPORTANT MUST ATTENTION search 3+ existing patterns and read code BEFORE any modification. Run graph trace when graph.db exists.

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