Developer MCP server: code analysis, JSON repair, imports, diffs, regex, format conversion.
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io.github.ellmos-ai/ellmos-codecommander-mcp is an MCP server that developer MCP server: code analysis, JSON repair, imports, diffs, regex, format conversion. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 62/100 on MCPpedia's security, maintenance and efficiency rubric.
Config is the same across clients — only the file and path differ.
{
"mcpServers": {
"codecommander": {
"command": "ellmos-codecommander"
}
}
}Are you the author?
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Part of the ellmos-ai family.
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
npx -y 'vitest' 2>&1 | head -1 && echo "✓ Server started successfully"
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Five weighted categories — click any category to see the underlying evidence.
When Vitest UI server is listening, arbitrary file can be read and executed
### Summary Arbitrary file can be read on Windows when Vitest UI server is listening, especially when exposed to the network. ### Impact Only users that match either of the following conditions are affected: - explicitly exposes the Vitest UI server to the network (using `--api.host` or [`api.host` config option](https://vitest.dev/config/api.html)) - running the Vitest UI or Browser Mode on Windows ### Details The API handler for `/__vitest_attachment__` uses the deprecated `isFileServingAll
Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening
### Summary Arbitrary remote Code Execution when accessing a malicious website while Vitest API server is listening by Cross-site WebSocket hijacking (CSWSH) attacks. ### Details When [`api` option](https://vitest.dev/config/#api) is enabled (Vitest UI enables it), Vitest starts a WebSocket server. This WebSocket server did not check Origin header and did not have any authorization mechanism and was vulnerable to CSWSH attacks. https://github.com/vitest-dev/vitest/blob/9a581e1c43e5c02b11e2a8026
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Part of the ellmos-ai family.
[!NOTE] For AI Assistants & LLMs: Machine-readable indexing documentation for this repository is available at
llms.txt. The server exposes 22 specialized tools under thecc_prefix.
A developer-focused Model Context Protocol (MCP) server that gives AI assistants code analysis, structural Python editing, JSON repair, encoding fix, import organization, format conversion, file diff, and regex testing capabilities.
22 tools optimized for developers - the coding companion to FileCommander.
Discoverability: Published on npm as ellmos-codecommander-mcp, visible on Glama, and prepared for the official MCP Registry with server.json under io.github.ellmos-ai/ellmos-codecommander-mcp. Registry and directory manifests server.json, glama.json, smithery.yaml, and llms.txt are maintained in full parity.
graph TD
Client["MCP Clients<br/>(Claude Desktop / Claude Code / Cursor / Windsurf)"]
Server["ellmos CodeCommander MCP Server<br/>(stdio transport • Node.js)"]
subgraph Tools["Developer Tool Suites (22 Tools)"]
subgraph CodeIntel["Code & Python Intelligence"]
C1["cc_analyze_code"]
C2["cc_analyze_methods"]
C3["cc_extract_classes"]
C4["cc_check_indentation"]
C5["cc_generate_python_code"]
C6["cc_python_structural_edit"]
end
subgraph Imports["Import Management"]
I1["cc_organize_imports"]
I2["cc_diagnose_imports"]
I3["cc_runtime_import_diagnose"]
end
subgraph Repair["Text, JSON & Encoding Repair"]
R1["cc_fix_json"]
R2["cc_validate_json"]
R3["cc_fix_encoding"]
R4["cc_cleanup_file"]
R5["cc_fix_umlauts"]
end
subgraph Utility["Utilities & Conversion"]
U1["cc_convert_format (JSON/CSV/YAML/TOML/XML/TOON)"]
U2["cc_diff_files (Unified Diff)"]
U3["cc_regex_test (Regex Tester)"]
U4["cc_scan_emoji"]
U5["cc_generate_licenses"]
end
subgraph Export[
... [View full README on GitHub](https://github.com/ellmos-ai/ellmos-codecommander-mcp#readme)