shtse8/filesystem-mcp (SylphxAI/filesystem-mcp) is an MCP server listed on the M8ven Trust Index. It scores 18 out of 100, grade F. It declares 26 tools. No publisher has claimed this listing.

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F
Caution
18/100

shtse8/filesystem-mcp

Node.js Model Context Protocol (MCP) server providing secure, relative filesystem access for AI agents like Cline/Claude.

→ SylphxAI/filesystem-mcp· listed on mcp_so

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

Code Verified⚡ Live Monitored: not connected

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Who stands behind it

SylphxAI

Source: mcp.so · also listed on ModelScope

Is this your MCP?

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Install from

mcp.sonot scored hereModelScopenot 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
⚠️
Known vulnerabilities in dependencies: 4 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
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.
// tools this server exposes13 tools

These names and descriptions are the publisher's own, as the running server reported them. We print them as written. Our assessment is the findings above, not this list.

apply_diff

Apply diffs to files

chmod_items

Change permissions mode for multiple specified files/directories (POSIX-style).

chown_items

Change owner (UID) and group (GID) for multiple specified files/directories.

copy_items

Copy multiple specified files/directories.

create_directories

Create multiple specified directories (including intermediate ones).

delete_items

Delete multiple specified files or directories.

list_files

List files/directories. Can optionally include stats and list recursively.

move_items

Move or rename multiple specified files/directories.

read_content

Read content from multiple specified files.

replace_content

Replace content within files across multiple specified paths.

search_files

Search for a regex pattern within files in a specified directory (read-only). Returns matches and any errors encountered.

stat_items

Get detailed status information for multiple specified paths.

write_content

Write or append content to multiple specified files (creating directories if needed). NOTE: For modifying existing files, prefer using 'edit_file' or 'replace_content' for better performance, especially with large files. Use 'write_content' primarily for creating new files or complete overwrites.

// known CVEs in dependencies4 high2 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.20.2GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.20.2GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.20.2GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highglob@11.0.1GHSA-5j98-mcp5-4vw2

glob CLI: Command injection via -c/--cmd executes matches with shell:true

lowuuid@11.1.0GHSA-w5hq-g745-h8pq

uuid: Missing buffer bounds check in v3/v5/v6 when buf is provided

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// 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.
configFILESYSTEM_CLI
configFILESYSTEM_USE_RUST_POLICY
configFILESYSTEM_USE_RUST_SEARCH
configFILESYSTEM_USE_RUST_WALK
// 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

26/26 tools missing one or more hints — apply_diff (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); chmod_items (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); chown_items (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +23 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.

Tool test coverage

Only 6/26 tools referenced in tests (23%)

Write tests that reference each tool by name so every tool has at least one test.

Production dependencies are patched

0 critical, 4 high severity in production deps — @modelcontextprotocol/sdk@1.20.2 (high), @modelcontextprotocol/sdk@1.20.2 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

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 4 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/sylphxai/filesystem-mcp?variant=verified)](https://m8ven.ai/mcp/sylphxai/filesystem-mcp)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 7e4b2768f58249e74be3b0228841c266c7de8876
code hash: 33a0d279610a4e7ac7b790c997be4a5d60f95e5378a8be7c2313e10961faf2a9
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