Skills/npm/mcp-server-msteams

mcp-server-msteams@1.0.5

CAUTION· not started

Publisher claims: "Microsoft Teams MCP Server with Assignment Automation, file attachments, and turn-in capabilities" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher kasim672 · publishing for 10 daysInstalls 1,342Last detonated 21 h ago
What would fix thisWatchDispute verdict

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
no credential variables read in the code
Where it talks to
no vendor host named in the codeAlso microsoft.com, office.com, microsoft.us, cloud.microsoft, microsoftonline.com, a.com, b.com — 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 under the guard. Not started: dependency install failed; the server itself was not observed. The code names no credential variable; the guard pins the network to what the honeypot saw and logs every call.

$vet-skills run --net declared -- npx -y mcp-server-msteams

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 2026-11-13 and scored it 75/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Hidden zero-width characters detected; Privileged sudo command; Destructive file system command detected. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 12 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
12sprocessdependency 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-KAKySL/task/home/.npm/_logs/2026-11-13T16_39_31_700Z-debug-0.log
12sclaimednot started: dependency install failed (exit 1); the server itself was not observed
12sprocessscript backend runs setup only
12sprocessno install scripts to re-run

Static findings

MEDIUM
Access to sensitive file pathsdist/utils/parsers.test.js:1275 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesexpect(sanitizeLinkUrl('file:///etc/passwd')).toBe('#');Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Hidden zero-width characters detecteddist/constants.js:168 · Hidden zero-width characters detected — may conceal content{ key: 'polarbear', description: 'Polar bear 🐻‍❄️', category: 'animal' },Fix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST07
HIGH
Privileged sudo commanddist/browser/context.js:685 · Privileged sudo command — agent may execute with elevated privileges: 'Install Google Chrome, Brave (brave-browser), Chromium, or Firefox on Linux (e.g. sudo apt install chromium-browser).';Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
URL with embedded credentialsdist/browser/auth.test.js:31 · URL with embedded credentials — may be phishing or credential leakingexpect(isTeamsUrl('https://teams.microsoft.com/v2/#/conversations/19:[email protected]')).toBe(true);Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
HIGH
Destructive file system command detecteddist/api/transcript-api.js:102 · Destructive file system command detected// Map to TranscriptEntry formatFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05

Cost to the agent

Instructions loaded
≈63 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 mcp-server-msteams@1.0.5 as of 21 h ago. This is the package itself, not its dependencies.

What would make this Verified

5 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%
  1. Unclaimed publisher≈ +8 on the totalClaim kasim672: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
  2. Hidden zero-width characters detected≈ +4 on the totalKeep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
  3. Privileged sudo command≈ +4 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
  4. Destructive file system command detected≈ +4 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
  5. New publisher≈ +3 on the totalTime clears this on its own after 14 and 30 days. Claiming the handle (+50) is the fastest way past it.
  6. Access to sensitive file paths≈ +2 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
Publish a new version to npm, then queue it here. Not your skill? Claim the handle to get verdict changes by email.Claim kasim672Propose a patch to the maintainer