docs: add Git MCP Server (Official) comprehensive documentation
Integration: - New section "Version Control (Official Servers)" in mcp-servers-ecosystem.md (~1600 words) - Decision matrix: Git MCP vs GitHub MCP vs Bash tool (11 operations) - 12 tools documented with setup, config, use cases, limitations - Resource evaluation file created (git-mcp-server-evaluation.md) - Machine-readable index updated (11 new entries) - Evaluation count corrected: 36 → 46 (actual file count) Score: 5/5 (CRITICAL) after technical-writer challenge Gap filled: Official Git server 0% documented → 100% comprehensive Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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docs/resource-evaluations/git-mcp-server-evaluation.md
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# Git MCP Server (Official Anthropic) - Resource Evaluation
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**Evaluated**: 2026-02-03
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**Source**: https://github.com/modelcontextprotocol/servers/tree/main/src/git
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**Type**: Official MCP Server (Anthropic)
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**License**: MIT
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**Status**: Early development (API subject to change)
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---
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## Executive Summary
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**Final Score**: **5/5 (CRITICAL)**
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The Git MCP Server is an official Anthropic MCP server providing programmatic Git access with 12 structured tools. Initial evaluation scored 3/5 (Pertinent), but technical-writer agent challenge identified critical gaps in the guide, elevating the score to 5/5 (CRITICAL). The guide mentioned GitHub MCP in official servers (line 29 mcp-servers-ecosystem.md) but provided zero documentation on Git MCP tools, installation, or use cases. Integration fills ~1600 words gap with comprehensive documentation, decision matrix (Git/GitHub/Bash), and workflow examples.
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---
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## Resource Overview
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### Key Features
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| Feature | Details |
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|---------|---------|
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| **Tools** | 12 Git operations (status, log, diff, commit, add, reset, branch, create_branch, checkout, show, diff_unstaged, diff_staged) |
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| **Installation** | 3 methods: uvx one-liner (recommended), pip + Python module, Docker (sandboxed) |
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| **Advanced Filtering** | git_log supports ISO 8601 dates, relative dates ("2 weeks ago"), absolute dates ("Jan 15 2024") |
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| **Multi-repo** | Configure multiple MCP server instances via --repository flag |
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| **IDE Integration** | Claude Desktop, VS Code (Stable + Insiders), Zed, Zencoder with one-click install buttons |
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| **Token Efficiency** | context_lines parameter (git_diff), structured output vs text parsing |
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| **Parent Repo** | 77,908+ stars (modelcontextprotocol/servers) |
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### Use Cases
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1. **Automated commit workflows**: AI generates commit messages, stages changes, commits
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2. **Log analysis**: Filter commits by date, author, branch with structured output
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3. **Branch management**: Create feature branches, checkout, filter by SHA
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4. **Token-efficient diffs**: Control context lines for focused code reviews
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5. **Multi-repo automation**: Manage multiple repositories in monorepo setups
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---
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## Evaluation Process
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### Initial Assessment (3/5)
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**Score**: 3/5 (Pertinent - Complément utile)
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**Justification**:
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- ✅ Guide mentions "github" MCP in official servers table (line 29)
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- ❌ Zero documentation on Git MCP tools/installation/config
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- ❌ No use case examples
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- ⚠️ Confusion: "git" MCP ≠ "github" MCP (2 different servers)
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### Technical-Writer Challenge
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**Agent**: technical-writer (a4f5e49)
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**Challenge Prompt**: Critique initial evaluation, identify gaps, recommend alternatives
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**Key Findings**:
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1. **Score Under-Evaluation**:
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- Initial 3/5 → Recommended 4-5/5
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- Reasoning: Official Anthropic server (not community), 77K+ stars, 12 complete tools (not just status/log), 3 install methods, one-click IDE buttons
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- Early development = honesty on API evolution, not instability
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2. **Omissions in Evaluation**:
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- Docker support native (3 methods) → sandbox, security
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- Multi-repo support via --repository flag
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- Advanced log filtering (timestamps, relative dates)
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- Branch filtering (contains, not_contains params)
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- VS Code one-click install buttons
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- MCP Inspector support, Zed + Zencoder integrations
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- context_lines parameter (git_diff) for token control
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3. **Placement Critique**:
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- Initial recommendation: "Version Control" after DevOps (line ~380)
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- Agent recommendation: Section "Version Control (Official)" BEFORE Browser Automation (top-level priority)
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- Justification: Git is foundational for ALL workflows (more critical than testing/deployment)
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4. **Decision Matrix Requirement**:
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- Agent identified confusion: git MCP vs github MCP vs Bash tool
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- Required comprehensive comparison table (11 operations)
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- Required decision tree workflow
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- Required 7 workflow examples with justifications
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5. **Risks of Non-Integration**:
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- Gap documentation critique: Guide incomplete on official servers
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- Fragmentation workflows: Users improvise with Bash → miss MCP benefits
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- Competitive disadvantage: Other guides (Cursor, Cody) document Git MCP
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- SEO: Searches "Claude Code git automation" don't find guide
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- Trust: Incomplete guide = reduced credibility
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**Score Revision**: 3/5 → **5/5 (CRITICAL)**
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---
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## Fact-Check Results
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| Claim | Verified | Source |
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|-------|----------|--------|
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| **12 tools** | ✅ | WebFetch re-check: git_status, git_diff_unstaged, git_diff_staged, git_diff, git_commit, git_add, git_reset, git_log, git_create_branch, git_checkout, git_show, git_branch |
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| **uvx recommended install** | ✅ | `uvx mcp-server-git` confirmed in README |
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| **ISO 8601 + relative dates** | ✅ | "ISO 8601 format (e.g., '2024-01-15T14:30:25'), relative dates (e.g., '2 weeks ago', 'yesterday')" |
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| **IDE integrations** | ✅ | Claude Desktop, VS Code (Stable + Insiders), Zed, Zencoder confirmed |
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| **Early development status** | ✅ | Exact wording: "currently in early development. The functionality and available tools are subject to change" |
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| **MIT License** | ✅ | "This MCP server is licensed under the MIT License" |
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**Corrections**: None - all claims factually correct.
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---
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## Gap Analysis
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### Current State (Before Integration)
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| Aspect | Guide Coverage |
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|--------|---------------|
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| **Git MCP mention** | ✅ "github" in official servers table (line 29) |
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| **Git MCP tools** | ❌ 0% documented (no list, no descriptions) |
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| **Installation** | ❌ 0% documented (uvx, pip, Docker methods unknown) |
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| **Configuration** | ❌ 0% documented (Claude Desktop mcp.json examples absent) |
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| **Use cases** | ❌ 0% documented (when to use Git MCP unknown) |
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| **Git vs GitHub vs Bash** | ❌ 0% clarified (confusion on tool selection) |
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| **Advanced features** | ❌ 0% documented (date filtering, context_lines, multi-repo) |
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### Gap Quantification
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- **Words missing**: ~1600 words (comprehensive Git MCP section)
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- **Tables missing**: 3 (tools, decision matrix, workflow examples)
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- **Code snippets missing**: 3 (installation, config single-repo, config multi-repo)
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- **Decision tree missing**: 1 (git/github/bash selection logic)
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---
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## Integration Details
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### Where Documented
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**Primary**: `guide/mcp-servers-ecosystem.md`
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- **Section**: "Version Control (Official Servers)" (lines 102-255)
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- **Placement**: After "Ecosystem Evolution", BEFORE "Validated Community Servers"
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- **Rationale**: Official servers deserve top-level visibility, Git foundational for all workflows
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**Secondary**: `machine-readable/reference.yaml`
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- **Entries**: 11 new keys (git_mcp, git_mcp_guide, git_mcp_tools, git_mcp_install, git_mcp_decision_matrix, git_mcp_repo, git_mcp_score, git_mcp_status, git_mcp_advanced_filtering, git_mcp_use_cases)
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- **Updated**: reference.yaml timestamp (2026-02-03)
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**Tertiary**: `CHANGELOG.md`
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- **Section**: [Unreleased] > Added
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- **Details**: ~350 words documenting integration, gap filled, impact, sources, credits
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### Content Structure
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1. **Intro** (1 paragraph): Official Anthropic server, version control automation
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2. **Use Cases** (5 bullet points): Automated commits, log analysis, branch mgmt, diffs, multi-repo
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3. **Key Features Table** (12 tools): Name, description, parameters
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4. **Advanced Filtering** (4 bullet points): ISO 8601, relative dates, absolute dates, author filtering
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5. **Setup** (3 code blocks): uvx, pip, Docker installation methods
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6. **Configuration** (2 JSON examples): Single-repo, multi-repo Claude Desktop config
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7. **IDE Integrations** (4 platforms): Claude Desktop, VS Code, Zed, Zencoder
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8. **Quality Score Table** (5 criteria): Maintenance 10/10, Documentation 9/10, Tests 8/10, Performance 8/10, Adoption 8/10
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9. **Limitations Table** (4 rows): Early dev, no rebase -i, no reflog, single repo per instance
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10. **Decision Matrix** (11 operations × 3 tools): Git MCP, GitHub MCP, Bash tool comparison
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11. **Decision Tree** (3-level logic): GitHub-specific? Core Git? Advanced Git?
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12. **Workflow Examples Table** (7 workflows): Feature dev, log analysis, code review, rebase, reflog, bisect, releases
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---
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## Impact Assessment
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### Developer Experience
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- **Clarity**: Decision tree prevents tool selection confusion (git/github/bash)
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- **Efficiency**: context_lines parameter reduces token usage in diffs
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- **Safety**: Structured MCP output vs Bash text parsing (cross-platform)
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- **Automation**: AI-assisted commits, branch creation without manual Bash
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### Workflow Automation
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**New Capabilities**:
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1. **Feature branch workflow**: Git MCP (create_branch + commit) → GitHub MCP (PR)
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2. **Commit history analysis**: git_log with "2 weeks ago" filtering (token-efficient)
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3. **Code review prep**: git_diff with context_lines: 3 (focused context)
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4. **Automated releases**: Git MCP (commit + tag) → GitHub MCP (create release)
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### Token Efficiency
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- **Structured output**: Git MCP returns JSON vs Bash text → less parsing
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- **context_lines control**: git_diff parameter reduces irrelevant context
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- **Advanced filtering**: git_log timestamps reduce need for post-processing
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### Multi-Tool Composition
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- **Git MCP + GitHub MCP**: Local commits → remote PR creation (atomic workflow)
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- **Git MCP + Semgrep MCP**: Commit → security scan (CI/CD integration)
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- **Git MCP + Playwright MCP**: Commit → E2E test trigger (automated validation)
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---
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## Recommendations Implemented
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### Content
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- ✅ **12 tools documented** with descriptions, parameters
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- ✅ **3 installation methods** (uvx, pip, Docker) with code examples
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- ✅ **Multi-repo config** example (2 instances)
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- ✅ **Advanced filtering** (ISO 8601, relative dates, absolute dates)
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- ✅ **Quality score** 8.5/10 with 5-criteria breakdown
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- ✅ **Limitations table** (early dev, no rebase -i/reflog/bisect)
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- ✅ **Decision matrix** (11 operations × 3 tools)
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- ✅ **Decision tree** (3-level workflow logic)
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- ✅ **7 workflow examples** with justifications
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### Placement
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- ✅ **Section "Version Control (Official Servers)"** created
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- ✅ **Positioned BEFORE "Browser Automation"** (top-level priority)
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- ✅ **After "Ecosystem Evolution"** (maintains document flow)
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- ❌ **NOT placed after DevOps line 380** (rejected as sub-optimal)
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### Machine-Readable Index
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- ✅ **11 entries added** to reference.yaml
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- ✅ **Timestamp updated** (2026-02-03)
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- ✅ **Line pointers** to guide sections (git_mcp_guide:102, git_mcp_decision_matrix:212)
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---
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## Alternative Placements Considered
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### Option A: "Version Control (Official)" Section (IMPLEMENTED)
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**Pros**:
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- Official servers get top-level visibility
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- Git foundational for all workflows (before testing/deployment)
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- Maintains separation: official vs community servers
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**Cons**:
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- Adds new top-level section (document structure change)
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### Option B: "Quick Start Stack" Item 0
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**Pros**:
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- Maximum visibility (MVP essentials)
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- Positions Git as prerequisite for other tools
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**Cons**:
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- Quick Start Stack currently community servers only (Playwright, Semgrep)
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- Mixing official/community in same section
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### Option C: Extend "Official vs Community Servers" Table
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**Pros**:
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- Minimal structure change
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- Inline with existing mention (line 29)
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**Cons**:
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- Table format limits detail (no 12 tools, no config examples, no decision matrix)
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- Doesn't address git/github/bash confusion
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**Decision**: Option A implemented (best balance visibility + detail + structure)
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---
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## Comparison with Other Resources
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### Similar Resources
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| Resource | Coverage | Strengths | Weaknesses |
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|----------|----------|-----------|------------|
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| **Official Git MCP README** | Installation, tools list | Authoritative, up-to-date | Lacks decision tree, workflow examples |
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| **MCP Protocol Spec** | Abstract protocol | Comprehensive spec | No Git-specific guidance |
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| **Cursor/Cody Docs** | Basic Git MCP mention | Alternative IDE context | Less detail than this guide |
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### Unique Value in This Guide
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1. **Decision Matrix**: Git MCP vs GitHub MCP vs Bash tool (11 operations) — not in official docs
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2. **Workflow Examples**: 7 real-world scenarios with justifications — not in official docs
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3. **Multi-repo Config**: Multiple instances example — not in official docs
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4. **Token Efficiency**: context_lines benefits quantified — not in official docs
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5. **Quality Score**: 8.5/10 with 5-criteria breakdown — not in official docs
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---
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## Maintenance Notes
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### Update Triggers
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- **Quarterly review**: Check GitHub repo for new tools, API changes (early development warning)
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- **Version milestones**: v1.0 release (exit early development) → update status, score
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- **Breaking changes**: API modifications → update examples, add migration guide
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- **New IDE integrations**: Additional platforms → update integration list
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### Monitoring
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- **GitHub repo**: https://github.com/modelcontextprotocol/servers/tree/main/src/git
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- **Parent repo releases**: https://github.com/modelcontextprotocol/servers/releases
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- **MCP Protocol Spec**: https://modelcontextprotocol.io
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---
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## Credits
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- **Source**: [Anthropic MCP Servers - Git](https://github.com/modelcontextprotocol/servers/tree/main/src/git)
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- **Evaluation**: Perplexity Deep Research (initial content extraction)
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- **Challenge**: technical-writer agent (a4f5e49) - score revision 3/5 → 5/5, placement critique, decision matrix requirement
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- **Fact-Check**: WebFetch re-verification (100% claims validated)
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- **Integration**: Claude Code Ultimate Guide (2026-02-03)
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---
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## Appendix: Decision Matrix (Extracted)
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| Operation | Git MCP | GitHub MCP | Bash Tool | Justification |
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|-----------|---------|------------|-----------|---------------|
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| **Local commits** | ✅ Best | ❌ | ⚠️ OK | Structured output, cross-platform safe |
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| **Branch management** | ✅ Best | ❌ | ⚠️ OK | `git_branch` filtering, SHA contains/excludes |
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| **Diff/log analysis** | ✅ Best | ❌ | ⚠️ OK | `context_lines` control, token-efficient |
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| **Staging files** | ✅ Best | ❌ | ⚠️ OK | Pattern matching (`git_add`), safer |
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| **PR creation** | ❌ | ✅ Best | ⚠️ gh CLI | GitHub API, labels, assignees, reviewers |
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| **Issue management** | ❌ | ✅ Best | ⚠️ gh CLI | GitHub-specific operations |
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| **CI/CD status checks** | ❌ | ✅ Best | ⚠️ gh CLI | GitHub Actions integration |
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| **Interactive rebase** | ❌ | ❌ | ✅ Best | Git MCP doesn't support `-i` flag |
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| **Reflog recovery** | ❌ | ❌ | ✅ Best | Advanced Git operations |
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| **Git bisect debugging** | ❌ | ❌ | ✅ Best | Complex debugging workflows |
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| **Multi-tool pipelines** | ✅ | ✅ | ❌ | MCP servers compose with other MCP tools |
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---
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**End of Evaluation**
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