hf-mcp-server@0.4.34
CAUTION· not startedPublisher claims: "Official Hugging Face MCP Server" Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Registry npm (MCP server)Publisher llmindset · publishing for 508 daysInstalls 2,813Last detonated 3d ago
Coverage
Not started: dependency install failed; the server itself was not observed.- Tested
- the dependency install step · every file read, file written and host contacted by what ran
- Not tested
- server startup · the tool list · tool behavior
What this means for the label: Caution here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.
Before you give it your token
- It will ask for
DEFAULT_HF_TOKENLOGGING_HF_TOKENMETRICS_PAGE_PASSWORDConfiguration, not credentials: CORS_ALLOWED_ORIGINS, GRADIO_DISCOVERY_CONCURRENCY, GRADIO_SCHEMA_CACHE_TTL, GRADIO_SCHEMA_TIMEOUT, GRADIO_SPACE_CACHE_TTL, GRADIO_SPACE_INFO_TIMEOUT, HF_API_TIMEOUT, HSTS, LOG_QUERY_EVENTS, LOG_SYSTEM_EVENTS, LOGGING_DATASET_ID, MCP_ALLOWED_HOSTS, SHUTDOWN_GRACE_MS, TRANSPORT, USER_CONFIG_API, VITEST, WEB_APP_PORT- Where it talks to
- no vendor host named in the codeAlso huggingface.co, hf.co, react.dev — not the publisher's domain; check what for before connecting.
- What the honeypot saw
- no credential files read · no network
- What we could not test
- server startup · the tool list · tool behavior
Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names huggingface.co, hf.co, react.dev as well as its own vendor. The guard injects DEFAULT_HF_TOKEN, LOGGING_HF_TOKEN, METRICS_PAGE_PASSWORD only into requests to the host you bind (and its subdomains) and refuses the rest.
$vet-skills run --net declared -- npx -y @llmindset/hf-mcp-server
Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.
Is [email protected] safe to install?
KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-11 and scored it 78/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Base64 encoding combined with network call; URL with embedded credentials. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 18 s · 2 scenarios · 0 deviationst+CategoryObserved action
0.0sprocessno install scripts in bundle
18sprocessdependency install exit 1 · (Use `node --trace-warnings ...` to show where the warning was created) npm error Cannot read properties of null (reading 'edgesOut') npm error A complete log of this run can be found in: /tmp/ks-detonate-HIEDyp/task/home/.npm/_logs/2026-11-11T12_41_33_397Z-debug-0.log
18sclaimednot started: dependency install failed (exit 1); the server itself was not observed
18sprocessscript backend runs setup only
18sprocessno install scripts to re-run
Static findings
MEDIUM
File type combined with upload actiondist/web/assets/main-B6UWQI-c.js:9 · File type combined with upload action — agent may exfiltrate local data files
AST07…(!t.ok)throw Error(`Failed to fetch Skills metrics: ${t.status}`);return await t.json()}function ot(e){var t,n,r=``;if(typeof e==`string`||typeof e==`number`)r+=e;else if(typeof e==`object`){if(Array.isArray(e)){var i=e.length;for(t=0;t<i;…Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.MEDIUM
File type combined with upload actiondist/web/assets/main-B6UWQI-c.js:8 · File type combined with upload action — agent may exfiltrate local data files
AST07…nstable_NormalPriority,Ye=t.unstable_LowPriority,Xe=t.unstable_IdlePriority,Ze=t.log,Qe=t.unstable_setDisableYieldValue,$e=null,et=null;function tt(e){if(typeof Ze==`function`&&Qe(e),et&&typeof et.setStrictMode==`function`)try{et.setStrict…Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.MEDIUM
MCP server using network transport (SSE/HTTP)package.json:9 · MCP server using network transport (SSE/HTTP) — data sent over network
AST04"hf-mcp-server-http": "./dist/server/streamableHttp.js",Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.HIGH
Base64 encoding combined with network calldist/web/assets/main-B6UWQI-c.js:9 · Base64 encoding combined with network call — potential data exfiltration
AST07…~`&&n!==`$!`||e++}n=r}while(n)}function Ep(e,t,n){if(t=CSS.escape(t)===t?t:`r-`+btoa(t).replace(/=/g,``),e.style.viewTransitionName=t,n!=null&&(e.style.viewTransitionClass=n),n=getComputedStyle(e),n.display===`inline`){if(t=e.getClientRect…Fix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.HIGH
URL with embedded credentialsdist/web/assets/main-DQdcRbRl.css:1 · URL with embedded credentials — may be phishing or credential leaking
AST07@import "https://fonts.googleapis.com/css2?family=Source+Sans+Pro:ital,wght@0,400;0,600;0,700;0,900;1,400;1,700&display=swap";@layer components;@layer prope…Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.MEDIUM
MCP server using network transport (SSE/HTTP)package.json:10 · MCP server using network transport (SSE/HTTP) — data sent over network
AST04"hf-mcp-server-http-json": "./dist/server/streamableHttp.js"Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.MEDIUM
File type combined with upload actiondist/web/assets/main-B6UWQI-c.js:52 · File type combined with upload action — agent may exfiltrate local data files
AST07…>fetch(e).then(e=>{if(!e.ok)throw Error(`Failed to fetch: ${e.status}`);return e.json()});function eh(){let{data:e,error:t}=tt(`/api/transport-metrics`,$m,{refreshInterval:3e3,revalidateOnFocus:!0,revalidateOnReconnect:!0});return t?(0,z.j…Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.Cost to the agent
Instructions loaded
≈48 tok
1 file · 81 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0
Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.
Known vulnerabilities
No advisories in OSV for @llmindset/hf-mcp-server@0.4.34 as of 3d ago. This is the package itself, not its dependencies.
What would make this Verified
2 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%- Unclaimed publisher≈ +8 on the totalClaim llmindset: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
- Obfuscated code≈ +5 on the totalRemove base64-assembled strings, eval of decoded text and minified blobs. Reviewers and scanners both treat unreadable code as hostile.
- Base64 encoding combined with network call≈ +4 on the totalPut hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.
- URL with embedded credentials≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
- File type combined with upload action≈ +2 on the totalRemove the call, or declare the host in frontmatter and explain in the README what is sent and why.
- MCP server using network transport (SSE/HTTP)≈ +2 on the totalNamespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
Publish a new version to npm, then queue it here. Not your skill? Claim the handle to get verdict changes by email.Claim llmindsetPropose a patch to the maintainer