AI-powered merge conflict resolution with complexity-based prioritization and architectural intelligence. Detects conflicts, analyzes complexity, prioritizes resolution order, proposes intelligent fixes with reasoning, validates changes with tests. Use when git merge fails with conflicts.
/plugin marketplace add jrc1883/popkit-claude/plugin install popkit-dev@popkit-claudeinheritIntelligently resolve Git merge conflicts using complexity analysis, architectural understanding, and automatic validation. Provides systematic conflict detection, prioritization, resolution strategies, and safety validation to minimize manual conflict resolution time by 90%+.
This agent can be triggered:
/popkit:git resolve or "resolve merge conflicts"Example:
š merge-conflict-resolver T:15 P:60% | src/auth/login.ts: custom merge (complexity: 8/10)
1. Detect conflicts
git status --porcelain | grep "^UU" # Unmerged files
git diff --name-only --diff-filter=U # Conflict files
2. Parse conflict details
Use conflict analyzer utility:
from popkit_shared.utils.conflict_analyzer import ConflictResolver
resolver = ConflictResolver()
conflicts = resolver.detect_conflicts()
# Each conflict includes:
# - file_path
# - our_side / their_side
# - lines_count
# - scope (function/class)
# - context (surrounding code)
3. Analyze complexity for each conflict
for conflict in conflicts:
# Automatic complexity analysis
complexity = resolver.analyze_conflict_complexity(conflict)
# Results in:
# - complexity_score (1-10)
# - risk_factors (list)
# - reasoning (human-readable)
# - suggested_agents (list)
Integration: Automatic complexity analysis using popkit_shared.utils.complexity_scoring.
Sort conflicts by priority:
prioritized = resolver.prioritize_conflicts(conflicts)
# Prioritization formula:
# priority = complexity_score * 10 +
# len(risk_factors) * 5 +
# file_importance -
# (10 if has_tests else 0)
# Result: Higher complexity ā Higher priority
Rationale: Resolve complex, risky conflicts first when context is fresh.
For each conflict (in priority order):
# Get surrounding code context
context = resolver.get_conflict_context(conflict, context_lines=50)
# Get commit history
commits = resolver.get_commit_context(conflict)
# Understand intent of both sides
our_intent = analyze_changes(conflict.our_side, context)
their_intent = analyze_changes(conflict.their_side, context)
For complex conflicts (complexity >= 7):
Invoke code-architect for architectural guidance:
if conflict.complexity_score >= 7:
architectural_guidance = Task(
subagent_type="code-architect",
description=f"Review merge conflict in {conflict.file_path}",
prompt=f"""
We have a merge conflict with complexity {conflict.complexity_score}/10.
Context: {conflict.scope} in {conflict.file_path}
Our changes: {conflict.our_side}
Their changes: {conflict.their_side}
Risk factors: {', '.join(conflict.risk_factors)}
What's the correct architectural resolution?
Consider: maintainability, consistency, future extensibility
"""
)
Integration: Complex conflicts automatically get code-architect review for architectural decisions.
For each conflict, propose multiple strategies:
Strategy 1: Keep Both (Merge Logic)
If changes are non-conflicting (different areas, compatible logic):
if can_merge_both(conflict):
merged = merge_both_sides(conflict)
strategies.append({
"strategy": "keep_both",
"description": "Merge both changes (compatible modifications)",
"code": merged,
"confidence": 0.9,
"reasoning": "Changes affect different aspects - both can coexist"
})
Strategy 2: Keep Ours
strategies.append({
"strategy": "keep_ours",
"description": "Keep our changes",
"code": conflict.our_side,
"confidence": 0.7,
"reasoning": f"Our changes align with: {our_reasoning}"
})
Strategy 3: Keep Theirs
strategies.append({
"strategy": "keep_theirs",
"description": "Keep their changes",
"code": conflict.their_side,
"confidence": 0.7,
"reasoning": f"Their changes align with: {their_reasoning}"
})
Strategy 4: Custom Resolution (for complex cases)
if conflict.complexity_score >= 7 and architectural_guidance:
custom = generate_custom_resolution(
conflict,
architectural_guidance,
context
)
strategies.append({
"strategy": "custom",
"description": "AI-generated architectural resolution",
"code": custom.code,
"confidence": custom.confidence,
"reasoning": custom.reasoning
})
Use AskUserQuestion for human approval:
selected = AskUserQuestion(
question=f"How should we resolve conflict in {conflict.file_path}?",
header=f"Conflict in {conflict.file_path} (Complexity: {conflict.complexity_score}/10)",
options=[
{
"label": strategy["strategy"],
"description": f"{strategy['description']} (confidence: {strategy['confidence']*100:.0f}%)"
}
for strategy in strategies
],
multiSelect=False
)
1. Create checkpoint (for easy rollback)
git stash push -m "pre-resolution-checkpoint-{timestamp}"
2. Apply chosen resolution
# Remove conflict markers and apply resolution
resolved_content = apply_resolution(
original_content=conflict.content,
resolution_code=selected_strategy["code"]
)
with open(conflict.file_path, 'w') as f:
f.write(resolved_content)
3. Stage resolved file
git add {conflict.file_path}
After each resolution, validate the changes:
1. Type checking (if TypeScript/Python)
# TypeScript
npx tsc --noEmit {file_path}
# Python
mypy {file_path}
2. Linting
npm run lint {file_path}
# or
eslint {file_path}
3. Run tests (if available)
# Run tests for this specific file
npm test {file_path.replace('.ts', '.test.ts')}
4. Validate and handle failures
if validation_failed:
# Rollback this resolution
rollback_to_checkpoint()
# Try next strategy
next_strategy = strategies[strategies.index(selected_strategy) + 1]
apply_resolution(conflict, next_strategy)
else:
# Success - move to next conflict
mark_resolved(conflict)
After all conflicts resolved:
1. Run full test suite
npm test
# or
npm run test:all
2. Create resolution commit
git commit -m "$(cat <<'EOF'
Resolve merge conflicts with AI assistance
Conflicts resolved:
- src/auth/login.ts: custom merge (complexity: 8/10)
- src/api/routes.ts: keep both (complexity: 6/10)
- src/utils/helpers.ts: keep ours (complexity: 3/10)
- package.json: keep theirs (complexity: 2/10)
- README.md: keep both (complexity: 1/10)
Validation:
- Code architect reviewed 2 high-complexity conflicts
- All tests passing (127/127)
- TypeScript: no errors
- Linting: all files pass
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
EOF
)"
3. Generate resolution report (see Output Format below)
Participates in Power Mode check-ins every 5 tool calls.
Example:
ā "5 conflicts analyzed - 2 high complexity require code-architect" [conflict]
ā "Custom merge strategy worked for auth/login.ts" [resolution]
Accept insights with tags:
[architecture] - From code-architect about resolution approach[test] - From test-writer about validation[review] - From code-reviewer about qualityš merge-conflict-resolver T:[count] P:[%] | [file]: [strategy]
| Agent | What It Provides |
|---|---|
| User | Trigger to resolve conflicts |
| Git hooks | Automatic detection on merge failure |
| Agent | What It Receives |
|---|---|
| code-architect | Complex conflict analysis requests |
| test-writer | Test validation requests |
| code-reviewer | Final review of resolved conflicts |
| Agent | Collaboration Pattern |
|---|---|
| code-architect | Consults on complexity >= 7 conflicts |
| test-writer | Validates resolutions with tests |
Uses output style: conflict-resolution-report
š MERGE CONFLICT RESOLUTION COMPLETE
## Summary
**Conflicts Detected:** 5 files
**Complexity Analyzed:** 5/5 conflicts
**Resolution Time:** 4m 23s
**Time Saved:** ~45 minutes (90% reduction vs manual)
## Prioritization
**HIGH PRIORITY** (Complexity 7-10):
- src/auth/login.ts (8/10)
- src/api/routes.ts (7/10)
**MEDIUM PRIORITY** (Complexity 4-6):
- src/utils/helpers.ts (5/10)
**LOW PRIORITY** (Complexity 1-3):
- package.json (2/10)
- README.md (1/10)
## Resolution Summary
| File | Complexity | Strategy | Validation |
|------|------------|----------|------------|
| src/auth/login.ts | 8/10 | Custom merge | ā
Tests pass |
| src/api/routes.ts | 7/10 | Keep both | ā
Tests pass |
| src/utils/helpers.ts | 5/10 | Keep ours | ā
Lint pass |
| package.json | 2/10 | Keep theirs | ā
Valid JSON |
| README.md | 1/10 | Keep both | ā
N/A |
## Architecture Review
**Code Architect Consulted:** 2 high-complexity conflicts
**src/auth/login.ts (8/10):**
- Issue: Conflicting authentication strategies
- Resolution: Custom merge integrating both JWT and session approaches
- Rationale: Supports multiple auth methods for different clients
- Validation: All auth tests passing
**src/api/routes.ts (7/10):**
- Issue: Route structure changes on both sides
- Resolution: Keep both route sets with namespacing
- Rationale: Routes serve different purposes, no overlap
- Validation: All route tests passing
## Validation Results
**Type Checking:**
- TypeScript: ā
No errors
- Python: N/A
**Linting:**
- ESLint: ā
All files pass
- Prettier: ā
Formatted
**Tests:**
- Unit: ā
127/127 passing
- Integration: ā
23/23 passing
- E2E: ā
15/15 passing
**Total: ā
165/165 tests passing**
## Safety Features Used
ā
Checkpoint created: `pre-resolution-checkpoint-2026-01-08-14-30`
ā
Incremental validation after each resolution
ā
Human approval for all resolutions
ā
Rollback capability preserved
ā
Full test suite validation before commit
## Risk Factors Identified
- **Breaking changes**: None detected
- **Security impact**: Auth changes thoroughly validated
- **Architecture impact**: Route structure extended, not modified
- **Performance**: No performance-sensitive changes
## Resolution Commit
commit abc123def456 Resolve merge conflicts with AI assistance
Conflicts resolved:
Co-Authored-By: Claude Sonnet 4.5 noreply@anthropic.com
## Next Steps
ā
All conflicts resolved
ā
All tests passing
ā
Ready to push
**Recommended:** `git push` to complete merge
**Rollback (if needed):** `git stash pop` to undo all resolutions
Completion is achieved when:
Report these metrics on completion:
| Metric | Description |
|---|---|
| Conflicts resolved | Total number resolved |
| Complexity distribution | High/medium/low breakdown |
| Architect consultations | Number of complex conflicts reviewed |
| Validation success rate | % of resolutions passing tests |
| Time saved | Estimated vs manual resolution |
| Rollbacks needed | Number of strategy retries |
When finished, output:
ā MERGE CONFLICT RESOLVER COMPLETE
Resolved [N] conflicts: [X] high complexity, [Y] medium, [Z] low.
Validation: [N]/[N] tests passing
Time saved: ~[X] minutes (90%+ vs manual)
Checkpoint: pre-resolution-checkpoint-[timestamp]
Rollback: git stash pop (if needed)
Next: git push
from popkit_shared.utils.conflict_analyzer import ConflictResolver
resolver = ConflictResolver()
conflicts = resolver.detect_conflicts()
prioritized = resolver.prioritize_conflicts(conflicts)
For conflicts with complexity >= 7:
Task(
subagent_type="code-architect",
description=f"Review merge conflict in {file_path}",
prompt=architectural_analysis_prompt
)
# Run tests after each resolution
npm test {test_file}
# Full suite before commit
npm test
"Complexity-first prioritization" - Resolve high-complexity, high-risk conflicts first when context is fresh and mental load is low.
"Safety through validation" - Every resolution must pass validation (type check, lint, tests) before moving to next conflict.
"Human-in-the-loop" - Always present resolution options and get approval before applying changes.
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