mcp-server-filesystem@1.2.29
VERIFIEDPublisher claims: "MCP server for filesystem access" Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Registry npm (MCP server)Publisher agent-infra · joined 0 days agoInstalls 1,377Last detonated 2 h ago
$claude mcp add mcp-server-filesystem -- npx -y @agent-infra/mcp-server-filesystem
WatchReport an issueIs [email protected] safe to install?
KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-10-26 and scored it 84/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 1 s · 2 scenarios · 0 deviationst+CategoryObserved action
0.0sprocessno install scripts in bundle
1.3sprocessdependency install exit 1
1.4sprocessexec /usr/bin/timeout
1.4sprocessexited 1: Node.js v22.23.4
1.4sclaimedno tools/list reply (exit 1)
1.4sprocessscript backend runs setup only
Static findings
MEDIUM
MCP server using network transport (SSE/HTTP)dist/index.js:16 · MCP server using network transport (SSE/HTTP) — data sent over networkFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04MEDIUM
npx invocation of non-well-known packagepackage.json:52 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.
AST06MEDIUM
File permission modification commandpackage.json:51 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05