file-system-mcp-server (calebmwelsh/file-system-mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 60 out of 100, grade C. It declares 16 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Caution
60/100

file-system-mcp-server

→ calebmwelsh/file-system-mcp-server· listed on modelscope

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

⚡ Live Monitored: not connected

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Who stands behind it

calebmwelsh

Source: ModelScope

Is this your MCP?

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Install from

ModelScopenot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Tool descriptions don’t match what handlers do
1 tool describes read intent but its handler mutates — list_user_directories (line 756: path = subprocess.check_output()
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configPROGRAMFILES
configPROGRAMDATA
configWINDIR
configSYSTEMROOT
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

16/16 tools missing one or more hints — scan_directory_tool (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_file_metadata_tool (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_drives (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +13 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Destructive tools are labelled

1 tool perform destructive updates without destructiveHint — delete_file deletes at line 1139 (os.remove(file_path))

Add destructiveHint:true to any tool whose handler calls .delete(), .upsert(), .update(), unlink, rm, DELETE, DROP, REPLACE INTO, or any operation that overwrites existing data.

Descriptions match behaviour

1 tool describes read intent but its handler mutates — list_user_directories (line 756: path = subprocess.check_output()

Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.

Tests exist

No test files found

Add tests that exercise each declared tool.

Tool description accuracy

list_user_directories: description implies read-only but handler writes/deletes/executes

Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/calebmwelsh/file-system-mcp-server?variant=verified)](https://m8ven.ai/mcp/calebmwelsh/file-system-mcp-server)
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commit: 767dca2085f8c8a5aa327e818cf378682dd13f07
code hash: 9e905380e8fd743e078aad12b6db68881948b71bc0559c5ff2c94e22e77c34cf
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