markus41/plugins/claude-code-expert/skills-old/project-sync

Project Sync

Reusable workflow for keeping Claude Code configuration current across a project and its sub-repositories. Powers the /cc-sync command.

When to Use

• After adding new dependencies, frameworks, or services to the project
• After restructuring directories or creating new packages
• When sub-repos are missing .claude/ configuration
• When docs/context/ needs scaffolding or updates
• When README.md or CLAUDE.md are out of date
• Periodically (weekly or per-sprint) to catch configuration drift

Core Workflow

1. Re-Fingerprint

Re-scan the project using detection maps from /cc-setup:

• Languages, frameworks, infrastructure, databases, services
• Test frameworks, package manager, monorepo structure
• Compare against .claude/sync-state.json for delta

2. Sub-Repo Discovery

# Find nested git repos (exclude standard non-project dirs)
EXCLUDE="node_modules|\.git|vendor|dist|build|coverage|__pycache__|\.next|\.nuxt"
find . -maxdepth 2 -name ".git" -type d | grep -vE "$EXCLUDE"

For each sub-repo without .claude/:

• Create .claude/ directory structure
• Generate CLAUDE.md with sub-project context
• Copy essential rules (self-healing, lessons-learned)
• Inherit root settings with sub-repo overrides

3. Documentation Scaffold

Create docs/context/ files that don't exist:

| File | Auto-populated from | |------|---------------------| | project-overview.md | package.json, directory tree, fingerprint | | architecture.md | Detected components, services | | data-model.md | Prisma schema, migration files | | api-contracts.md | Route files, OpenAPI specs | | testing-strategy.md | Test framework config, test directories | | security-rules.md | Auth middleware, env vars | | changelog.md | Git log summary |

4. README/CLAUDE.md Update

Section-aware merge:

• Scan existing README.md for section headings
• Add missing sections (Getting Started, Architecture, Claude Code Integration, etc.)
• Never delete or overwrite existing user sections
• Update CLAUDE.md cross-references to new assets

5. LSP Installation

For each detected language, check binary availability and install if missing.

6. Verification

Score the configuration on a 0-100 scale across:

• CLAUDE.md quality (15pts)
• README.md completeness (10pts)
• .claude/rules/ coverage (15pts)
• .claude/skills/ relevance (10pts)
• .claude/agents/ coverage (10pts)
• .claude/hooks/ events (10pts)
• .claude/templates/ (5pts)
• docs/context/ coverage (10pts)
• Sub-repo propagation (5pts)
• LSP installation (5pts)
• MCP servers (5pts)

Merge Strategy

IF file does not exist → CREATE from template
ELIF --force flag → BACKUP (.bak) then OVERWRITE
ELSE → SKIP (preserve user content)

For README.md and CLAUDE.md, use section-level granularity instead of file-level.

Outputs

• Sync report with created/updated/skipped counts
• Score with delta from last sync
• Recommendations for empty template files
• Updated .claude/sync-state.json

Reference Files

• /cc-sync command: commands/cc-sync.md
• /cc-setup command: commands/cc-setup.md
• Detection maps: Phase 1 of cc-setup.md
• Template library: Phase 3 of cc-sync.md