# Ellmos Clatcher MCP (npm · ellmos-clatcher-mcp)

Utility MCP server: JSON repair, encoding fixes, conversion, duplicates, batch rename, archives.

- Trust score: 62/100 (medium)
- Change this week: +17
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `ellmos-clatcher-mcp`: 62/100 (this document), [markdown](https://verifymcp.io/servers/ellmos-ai-ellmos-clatcher-mcp/ellmos-clatcher-mcp.md), [page](https://verifymcp.io/servers/ellmos-ai-ellmos-clatcher-mcp/ellmos-clatcher-mcp)

## Channel facts

- Registry: `npm`
- Package: `ellmos-clatcher-mcp`
- Version: `1.0.10`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 70/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known high-severity CVE affects adm-zip 0.5.18, a direct dependency. A fixed version is available.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (160 of 164), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 2 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 861 tokens (~71/item across 12 items; 12 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 93/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 80% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add ellmos-ai-ellmos-clatcher-mcp -- npx -y ellmos-clatcher-mcp
```

### Codex

```bash
codex mcp add ellmos-ai-ellmos-clatcher-mcp -- npx -y ellmos-clatcher-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ellmos-ai-ellmos-clatcher-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "ellmos-clatcher-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ellmos-ai-ellmos-clatcher-mcp --command npx --arg -y --arg ellmos-clatcher-mcp
```

### Hermes

```yaml
mcp_servers:
  ellmos-ai-ellmos-clatcher-mcp:
    command: "npx"
    args: ["-y", "ellmos-clatcher-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "ellmos-ai-ellmos-clatcher-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "ellmos-clatcher-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 62, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-02 (score 58, +38)

- [security regression] CVE-2026-39244 affects this package: high
- [security regression] Provenance: unverified → fail
- [security regression] Known CVEs: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Schema quality: unverified → good
- [functional] First check of Schema quality: unverified
- [functional] Licence: MIT

### 2026-07-31 (score 20, −7)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 27, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-27 (score 45)

First indexed and scored.

## MCP tools (12)

### `fix_json` (~63 tokens)

Repair broken JSON: strip comments, fix trailing commas, convert single quotes, remove BOM/NUL. Supports dry_run mode.

Input parameters:

- `dry_run` (boolean): true = analyze only, false = write repaired file
- `path` (string, required): Path to the JSON file

### `fix_encoding` (~60 tokens)

Fix encoding issues: detect and repair BOM, broken UTF-8, cp1252 artifacts. Common on Windows.

Input parameters:

- `dry_run` (boolean): true = analyze only, false = write fixed file
- `path` (string, required): Path to the file

### `fix_umlauts` (~60 tokens)

Fix broken German umlauts from double-encoding or cp1252 artifacts (ä→ä, ö→ö, etc.)

Input parameters:

- `dry_run` (boolean): true = analyze only
- `path` (string, required): Path to the file

### `convert_format` (~77 tokens)

Convert between data formats: JSON, YAML, TOML, XML, CSV, INI. Reads input file and writes output file.

Input parameters:

- `input_format` (string, required): Source format
- `input_path` (string, required): Source file path
- `output_format` (string, required): Target format
- `output_path` (string, required): Target file path

### `detect_dupes` (~94 tokens)

Find duplicate files in a directory by content hash (SHA256). Groups files with identical content.

Input parameters:

- `directory` (string, required): Directory to scan
- `extensions` (string): Comma-separated file extensions to check (e.g. 'py,js,ts'). Empty = all files
- `min_size` (number): Minimum file size in bytes (skip empty files)
- `recursive` (boolean): Scan subdirectories

### `folder_diff` (~62 tokens)

Compare two directories, or take a snapshot and compare on next call. Shows new, modified, and deleted files.

Input parameters:

- `compare_to` (string): Second directory to compare against. Omit for snapshot mode.
- `directory` (string, required): Directory to compare/snapshot

### `batch_rename` (~106 tokens)

Rename multiple files using regex pattern, prefix/suffix, or counter. Always preview first with dry_run=true.

Input parameters:

- `directory` (string, required): Directory containing files to rename
- `dry_run` (boolean): true = preview only
- `extensions` (string): Comma-separated extensions to filter (e.g. 'jpg,png')
- `pattern` (string, required): Regex pattern to match in filenames
- `replacement` (string, required): Replacement string ($1, $2 for capture groups)

### `archive` (~66 tokens)

Create, extract, or list ZIP archives.

Input parameters:

- `action` (string, required): Operation
- `archive_path` (string, required): Path to the ZIP file
- `extract_to` (string): Extraction directory (for extract)
- `source_paths` (array): Files/directories to add (for create)

### `checksum` (~60 tokens)

Calculate file hash (SHA256, MD5, SHA1, SHA512). Optionally verify against expected hash.

Input parameters:

- `algorithm` (string)
- `expected` (string): Expected hash to verify against
- `path` (string, required): Path to the file

### `cleanup_file` (~97 tokens)

Remove BOM, trailing whitespace, fix line endings, remove NUL bytes. Configurable per-option.

Input parameters:

- `dry_run` (boolean)
- `ensure_final_newline` (boolean)
- `normalize_line_endings` (string)
- `path` (string, required): Path to the file
- `remove_bom` (boolean)
- `remove_nul_bytes` (boolean)
- `remove_trailing_whitespace` (boolean)

### `scan_emoji` (~54 tokens)

Scan code files for emoji characters. Useful for finding accidental emojis in source code.

Input parameters:

- `directory` (string, required): Directory to scan
- `extensions` (string): Comma-separated file extensions
- `recursive` (boolean)

### `regex_test` (~62 tokens)

Test a regex pattern against text. Shows all matches with groups and positions.

Input parameters:

- `flags` (string): Regex flags (g, i, m, s, u)
- `pattern` (string, required): Regex pattern
- `text` (string, required): Text to test against

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/ellmos-ai-ellmos-clatcher-mcp/ellmos-clatcher-mcp#diagnostics

## Score history

- 2026-08-03: 62
- 2026-08-02: 58
- 2026-08-01: 20
- 2026-07-31: 20
- 2026-07-30: 27
- 2026-07-28: 45
- 2026-07-27: 45

## Links

- npm package: https://www.npmjs.com/package/ellmos-clatcher-mcp
- Socket report: https://socket.dev/npm/package/ellmos-clatcher-mcp
- Repository: https://github.com/ellmos-ai/ellmos-clatcher-mcp
- Changelog RSS feed: https://verifymcp.io/servers/ellmos-ai-ellmos-clatcher-mcp/ellmos-clatcher-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/ellmos-ai-ellmos-clatcher-mcp/ellmos-clatcher-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/ellmos-ai-ellmos-clatcher-mcp/ellmos-clatcher-mcp