Skills/PyPI/looker-mcp-server

looker-mcp-server@0.26.1

CAUTION· not started

Publisher claims: "A Model Context Protocol (MCP) server for the Looker API with full tool coverage, OAuth pass-through, and user impersonation support." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher ultrathink-solutions · publishing for 269 daysInstalls 377Last detonated 46 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
looker.com (its own)Also strawberry.rocks — 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 and talks to looker.com, its own; the guard pins the network to what the honeypot saw and logs every call.

$vet-skills run --net declared -- uvx looker-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 2026-11-12 and scored it 72/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Privileged sudo command; Access to sensitive file paths; Privileged sudo command. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

HIGH
Privileged sudo commandsrc/looker_mcp_server/client.py:439 · Privileged sudo command — agent may execute with elevated privileges# Argument-driven sudo is admin impersonation requestedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Access to sensitive file pathssrc/looker_mcp_server/config.py:103 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files(e.g. ``LOOKER_BASE_URL``) or via a ``.env`` file.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/identity.py:45 · Privileged sudo command — agent may execute with elevated privileges# api_key / sudo modeFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/client.py:442 · Privileged sudo command — agent may execute with elevated privileges# header-driven sudo (gateway pattern), so emit anFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/client.py:401 · Privileged sudo command — agent may execute with elevated privileges- **sudo**: admin login → login_user → yield → logout sudo → logout adminFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Access to sensitive file pathssrc/looker_mcp_server/config.py:108 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesenv_file=".env",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/identity.py:49 · Privileged sudo command — agent may execute with elevated privileges# sudo modeFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/identity.py:61 · Privileged sudo command — agent may execute with elevated privileges# for non-sudo identities. Surfaced in audit logs so operators canFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/identity.py:59 · Privileged sudo command — agent may execute with elevated privileges# how the sudo target was selected — "argument" (per-call act_as_userFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/config.py:213 · Privileged sudo command — agent may execute with elevated privilegesMCP server holds NO admin API3 credentials and NO sudo capability. AFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/server.py:137 · Privileged sudo command — agent may execute with elevated privileges(uses sudo on self-hosted, OAuth on GC core) when ``sudo_as_user`` isFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Credential pass-through configurationsrc/looker_mcp_server/oidc/looker_introspection.py:48 · Credential pass-through configuration — agent relays sensitive credentials# Paths that bypass token validation — parity with the public-mode gate.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
MEDIUM
Privileged sudo commandtests/test_health_endpoints.py:123 · Privileged sudo command — agent may execute with elevated privilegesexternal-identity shape (OAuth pass-through / sudo header / etc.)Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Process kill commandsrc/looker_mcp_server/tools/workflows.py:979 · Process kill command — agent can terminate processes"``threshold_seconds``, and optionally kill them. "Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/server.py:183 · Privileged sudo command — agent may execute with elevated privileges# shared identity. The argument-sudo wrapper is intentionallyFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/server.py:206 · Privileged sudo command — agent may execute with elevated privileges# for sudo-capable behavior, and per-call sudo respects it.Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Process kill commandsrc/looker_mcp_server/identity.py:243 · Process kill command — agent can terminate processes# Honor the deployment's sudo kill switch. We could skipFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo commandtests/test_git_tools.py:471 · Privileged sudo command — agent may execute with elevated privilegesassert sudo_route.called, "sudo target must be the resolved user_id"Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo commandtests/test_git_tools.py:550 · Privileged sudo command — agent may execute with elevated privileges# respond with an opaque 400/404. No login or sudo route isFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo commandtests/test_client.py:436 · Privileged sudo command — agent may execute with elevated privileges# Two logouts (sudo + admin)Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/server.py:203 · Privileged sudo command — agent may execute with elevated privileges# Wrap with argument-driven sudo so tools that accept ``act_as_user``Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Credential pass-through configurationsrc/looker_mcp_server/oidc/middleware.py:49 · Credential pass-through configuration — agent relays sensitive credentials# Paths that bypass token validation. These are either public by designFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
HIGH
Privileged sudo commandsrc/looker_mcp_server/tools/_helpers.py:49 · Privileged sudo command — agent may execute with elevated privileges# notices this argument and rewrites the resolved identity to a sudoFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Credential pass-through configurationsrc/looker_mcp_server/identity.py:198 · Credential pass-through configuration — agent relays sensitive credentials``OAuthIdentityProvider`` and pass tokens via the configuredFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
HIGH
Privileged sudo commandsrc/looker_mcp_server/server.py:207 · Privileged sudo command — agent may execute with elevated privileges# The wrapper is still installed when sudo is disabled so theFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo commandtests/test_git_tools.py:391 · Privileged sudo command — agent may execute with elevated privilegesgit tool receives ``act_as_user`` we expect a sudo session to beFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/tools/audit.py:212 · Privileged sudo command — agent may execute with elevated privileges"create/update/delete, sudo activity). Returns rows of "Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/looker_mcp_server/identity.py:104 · Privileged sudo command — agent may execute with elevated privilegesLooker API, then generates a sudo token.Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Process kill commandsrc/looker_mcp_server/server.py:205 · Process kill command — agent can terminate processes# ``LOOKER_SUDO_AS_USER`` — that flag is the single kill switchFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo commandtests/test_query_tools.py:1134 · Privileged sudo command — agent may execute with elevated privileges# Admin credentials and sudo are both present, yet the looker_oauthFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo commandtests/test_identity.py:77 · Privileged sudo command — agent may execute with elevated privileges# Header-driven sudo is tagged so audit logs can distinguish itFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo commandtests/test_identity.py:241 · Privileged sudo command — agent may execute with elevated privileges# No email header → falls back to api_key (sudo provider fallback)Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_protocol_eras.py:11 · MCP server using network transport (SSE/HTTP) — data sent over networkstack (:func:`looker_mcp_server.main.build_http_middleware` andFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
Credential pass-through configurationtests/test_oidc_middleware.py:241 · Credential pass-through configuration — agent relays sensitive credentialsassert status == 401, "lookalike path must not bypass token validation"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
MEDIUM
Privileged sudo commandtests/test_query_tools.py:1076 · Privileged sudo command — agent may execute with elevated privileges# per-call sudo argument appears only where sudo can actually run.Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
LOW
Prompt injectionCHANGELOG.md:769 · Prompt injection — known jailbreak technique reference · informational: not an instruction file`400 Developer mode required`. `act_as_user` is propagated throughFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
MEDIUM
Privileged sudo commandtests/test_query_tools.py:1187 · Privileged sudo command — agent may execute with elevated privileges# while the config itself has sudo on.Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Process kill commandtests/test_identity.py:480 · Process kill command — agent can terminate processes# Honors the ``LOOKER_SUDO_AS_USER`` kill switch. The wrapperFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
LOW
Authorization escalation languageREADME.md:258 · Authorization escalation language · informational: not an instruction file…ntity, including OAuth and header-based sudo. This is intentional — an explicit admin override should win over implicit gateway routing — but the underlying credentials must …Fix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_protocol_eras.py:46 · MCP server using network transport (SSE/HTTP) — data sent over networkfrom looker_mcp_server.main import build_http_middleware, build_server_authFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
Privileged sudo commandtests/test_identity.py:78 · Privileged sudo command — agent may execute with elevated privileges# from argument-driven sudo (admin per-call impersonation).Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo commandtests/test_query_tools.py:1096 · Privileged sudo command — agent may execute with elevated privilegespolicy wrapper around argument sudo would."""Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
LOW
Authorization escalation languageCHANGELOG.md:769 · Authorization escalation language · informational: not an instruction file`400 Developer mode required`. `act_as_user` is propagated throughFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01

Cost to the agent

Instructions loaded
≈73 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 looker-mcp-server@0.26.1 as of 45 h ago. This is the package itself, not its dependencies.

What would make this Verified

8 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%
  1. Unclaimed publisher≈ +8 on the totalClaim ultrathink-solutions: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
  2. Privileged sudo command≈ +4 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
  3. Access to sensitive file paths≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
  4. Credential pass-through configuration≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
  5. Process kill command≈ +2 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
  6. 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.
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