ellmos-clatcher-mcp

🇩🇪 Deutsche Version

Claude Patcher -- an MCP server that extends AI coding agents with utility tools they don't have natively. File repair, format conversion, duplicate detection, batch operations, and more.

Part of the ellmos MCP family:

| Server | Focus | npm | |---|---|---| | ellmos-filecommander-mcp | Filesystem operations, process management, interactive sessions | ellmos-filecommander-mcp | | ellmos-codecommander-mcp | Code analysis, AST parsing, import management | ellmos-codecommander-mcp | | ellmos-clatcher-mcp | Utility tools: repair, convert, detect, batch ops | ellmos-clatcher-mcp |

Each server covers a different domain. Use one, two, or all three depending on your workflow.

Tools

| Tool | Description | |---|---| | fix_json | Repair broken JSON: strip comments, trailing commas, single quotes, BOM/NUL | | fix_encoding | Fix encoding issues: BOM removal, double-encoded UTF-8, cp1252 artifacts | | fix_umlauts | Fix broken German umlauts from double-encoding (e.g. ä -> ä) | | convert_format | Convert between JSON, YAML, TOML, XML, CSV, and INI | | detect_dupes | Find duplicate files by content hash (SHA256), grouped by identical content | | folder_diff | Compare two directories, or take a snapshot and diff on next call | | batch_rename | Rename files using regex patterns, with dry-run preview | | archive | Create, extract, or list ZIP archives | | checksum | Calculate file hashes (SHA256, MD5, SHA1, SHA512) with optional verification | | cleanup_file | Remove BOM, trailing whitespace, fix line endings, strip NUL bytes | | scan_emoji | Find emoji characters in code files | | regex_test | Test regex patterns against text, showing all matches with groups |

All destructive tools default to dry-run mode and require explicit dry_run: false to write changes.

Installation

Claude Code CLI

claude mcp add ellmos-clatcher-mcp -- npx ellmos-clatcher-mcp

npm (global)

npm install -g ellmos-clatcher-mcp
claude mcp add ellmos-clatcher-mcp -- ellmos-clatcher

From source

git clone https://github.com/ellmos-ai/ellmos-clatcher-mcp.git
cd ellmos-clatcher-mcp
npm install
npm run build
node dist/index.js

Testing

npm test

122 tests covering all 12 tools (vitest).

Requirements

• Node.js >= 18

License

MIT

ellmos-ai Ecosystem

This MCP server is part of the ellmos-ai ecosystem — AI infrastructure, MCP servers, and intelligent tools.

MCP Server Family

| Server | Tools | Focus | npm | |--------|-------|-------|-----| | FileCommander | 43 | Filesystem, process management, interactive sessions | ellmos-filecommander-mcp | | CodeCommander | 17 | Code analysis, AST parsing, import management | ellmos-codecommander-mcp | | Clatcher | 12 | File repair, format conversion, batch operations | ellmos-clatcher-mcp | | n8n Manager | 18 | n8n workflow management via AI assistants | n8n-manager-mcp |

AI Infrastructure

| Project | Description | |---------|-------------| | BACH | Text-based OS for LLMs — 109+ handlers, 373+ tools, 932+ skills | | clutch | Provider-neutral LLM orchestration with auto-routing and budget tracking | | rinnsal | Lightweight agent memory, connectors, and automation infrastructure | | ellmos-stack | Self-hosted AI research stack (Ollama + n8n + Rinnsal + KnowledgeDigest) | | MarbleRun | Autonomous agent chain framework for Claude Code | | gardener | Minimalist database-driven LLM OS prototype (4 functions, 1 table) | | ellmos-tests | Testing framework for LLM operating systems (7 dimensions) |

Desktop Software

Our partner organization open-bricks bundles AI-native desktop applications — a modern, open-source software suite built for the age of AI. Categories include file management, document tools, developer utilities, and more.

Haftung / Liability

Dieses Projekt ist eine unentgeltliche Open-Source-Schenkung im Sinne der §§ 516 ff. BGB. Die Haftung des Urhebers ist gemäß § 521 BGB auf Vorsatz und grobe Fahrlässigkeit beschränkt. Ergänzend gelten die Haftungsausschlüsse aus GPL-3.0 / MIT / Apache-2.0 §§ 15–16 (je nach gewählter Lizenz).

Nutzung auf eigenes Risiko. Keine Wartungszusage, keine Verfügbarkeitsgarantie, keine Gewähr für Fehlerfreiheit oder Eignung für einen bestimmten Zweck.

This project is an unpaid open-source donation. Liability is limited to intent and gross negligence (§ 521 German Civil Code). Use at your own risk. No warranty, no maintenance guarantee, no fitness-for-purpose assumed.