Skills/npm/mcp-server

mcp-server@1.11.3

VERIFIED· not started

Publisher claims: "The official MCP Server for kintone" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher kintone · publishing for 444 daysInstalls 7,506Last detonated 3d ago
$claude mcp add mcp-server -- npx -y @kintone/mcp-server
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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: Verified 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
KINTONE_API_TOKENKINTONE_BASIC_AUTH_PASSWORDKINTONE_BASIC_AUTH_USERNAMEKINTONE_PASSWORDKINTONE_PFX_FILE_PASSWORDConfiguration, not credentials: KINTONE_ATTACHMENTS_DIR, KINTONE_BASE_URL, KINTONE_PFX_FILE_PATH, KINTONE_USERNAME
Where it talks to
no vendor host named in the codeAlso cybozu.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 with a scoped credential, under the guard, and read the third-party hosts first. The code names cybozu.com as well as its own vendor. The guard injects KINTONE_API_TOKEN, KINTONE_BASIC_AUTH_PASSWORD, KINTONE_BASIC_AUTH_USERNAME, KINTONE_PASSWORD, KINTONE_PFX_FILE_PASSWORD only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- npx -y @kintone/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 89/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 19 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
19sprocessdependency 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-578pEl/task/home/.npm/_logs/2026-11-11T10_36_54_669Z-debug-0.log
19sclaimednot started: dependency install failed (exit 1); the server itself was not observed
19sprocessscript backend runs setup only
19sprocessno install scripts to re-run

Static findings

CRITICAL
HTML comment carrying imperative instructions to the agentREADME.md:27 · HTML comment carrying imperative instructions to the agentDON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATEFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01

No other findings across 4,900 lines in 62 files.

Cost to the agent

Instructions loaded
≈46 tok
1 file · 62 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 @kintone/mcp-server@1.11.3 as of 3d ago. This is the package itself, not its dependencies.