Merge Queue Conflict Resolution

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Purpose

Resolve common merge conflicts encountered when merging feature branches into merge-queue.

When To Use

• Git merge fails in merge-queue worktree
• Conflicts in observations.jsonl, uv.lock, pyproject.toml, or egg-info files
• Multiple branches queued for merging

Common Conflicts & Solutions

1. observations.jsonl (Autolearn Memory)

Symptom: "Your local changes to .opencode/​memory/​observations.jsonl would be overwritten" Cause: Autolearn continuously appends observations, creating drift vs feature branch Solution:

• Sync from branch: git show <branch>:.opencode/​memory/​observations.jsonl > .opencode/​memory/​observations.jsonl
• Commit changes: git add .opencode/​memory/​observations.jsonl && git commit -m "chore: sync observations" --no-verify
• Proceed with merge

Alternative: Add to .gitignore: ".opencode/​memory/​observations.jsonl"

2. uv.lock (Dependency Lock)

Symptom: "missing source field but has more than one matching package" or TOML parse error Cause: Lock file corruption from repeated merges across branches Solution:

• Remove corrupted lock: rm uv.lock
• Regenerate: uv lock
• Commit: git add uv.lock && git commit

Prevention: After each merge, run uv lock to ensure clean state

3. pyproject.toml (Dependency Conflicts)

Symptom: Merge conflict markers in dependencies section Cause: Different branches added overlapping or conflicting dependencies Solution:

• Manually edit pyproject.toml to merge all dependencies
• Accept all versions from both branches
• Example: Combine scipy, scikit-learn, matplotlib (HEAD) with fastapi, uvicorn, python-jose (branch)
• Re-generate lock: uv lock
• Commit resolved file

4. src/​vibe_piper/​__init__.py (Export List)

Symptom: Conflict in all showing duplicate feature sets Cause: Both HEAD and branch export different feature modules Solution:

• Accept BOTH sets of exports
• Merge lists to include all: External quality (HEAD) + Schema evolution (branch)
• Ensure no duplicates, maintain alphabetical grouping
• Verify all imports exist at bottom of file

5. src/​vibe_piper.egg-info/​* (Metadata)

Symptom: Conflict in PKG-INFO, requires.txt, SOURCES.txt Cause: Auto-generated package metadata Solution:

• Do NOT add to commit (in .gitignore)
• Accept --theirs or skip entirely
• Regenerated automatically on: uv sync, uv pip install -e .

6. .gitignore (Ignore Rules)

Symptom: Conflict on observation egg entries Cause: Both branches added different ignore patterns Solution:

• Combine patterns from both
• Example: .egg-info/ AND .opencode/​memory/​observations.jsonl
• Maintain both to avoid future conflicts

Procedure for Blocked Merges

Step 1: Identify Conflict Type

git status
git diff --name-status HEAD <branch>

Step 2: Resolve by Pattern

• observations.jsonl → Sync from branch and commit
• uv.lock → Delete and regenerate
• pyproject.toml → Manually merge dependencies
• init.py → Combine export lists
• egg-info/​* → Skip (ignore)
• .gitignore → Merge patterns

Step 3: Verify Resolution

# Check merge succeeded
git status

# Verify no conflict markers
grep -r '<<<<<< HEAD' .

# Regenerate lock if needed
uv lock

Step 4: Commit Merge

git add <resolved-files>
git commit -m "Merge <branch> into merge-queue (ticket: <ticket>)" --no-verify

Step 5: Mark Complete

loom team merge <TEAM> done <ITEM_ID> --result merged --note "..."

Best Practices

• Always use --no-verify for commits in merge-queue (skips hooks)
• Commit observations.jsonl before attempting merges
• Regenerate uv.lock after pyproject.toml changes
• Test with uv sync after resolving dependency conflicts
• Document conflict resolution in done notes for future reference

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Manual notes

This section is preserved when the skill is updated. Put human notes, caveats, and exceptions here.