Skills/PyPI/mcp-config-lint

mcp-config-lint@0.2.0

CAUTION· not started

Publisher claims: "Validate and security-check claude_desktop_config.json — CI-friendly CLI" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher basilalshukaili · publishing for 165 daysInstalls 21Last detonated 7d 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

Code inventory arrives with this version's next honeypot run.
It will ask for
unknown until the next run
Where it talks to
unknown until the next run
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Not enough was observed to say yet. Not started: dependency install failed; the server itself was not observed. This version's code has not been inventoried for credentials and hosts either; both arrive with its next honeypot run (popular servers first). `vet-skills try mcp-config-lint` runs it now and prints the full answer.

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 2026-11-07 and scored it 69/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Pipe-to-shell pattern; Access to sensitive file paths; References a credential file in the home directory. 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
0.1sprocessexec /usr/bin/date
0.1sprocessexec /usr/bin/timeout
0.1sprocessexec .venv/bin/mcp-config-lint
0.1sclaimedno tools/list reply (exit 0)
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

MEDIUM
Stripe-like API key pattern detectedtests/test_checks.py:196 · Stripe-like API key pattern detected — possible hardcoded or harvested key"env": {"STRIPE_SECRET_KEY": "sk_live_realkey123"}}Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
Python subprocess execution detectedtests/test_checks.py:605 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
CRITICAL
Pipe-to-shell patternsrc/mcp_lint/checks.py:197 · Pipe-to-shell pattern — downloads and immediately executes remote codefix='Change command to "uvx". Install uv: curl -LsSf https://astral.sh/uv/install.sh | sh',Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST06
MEDIUM
Remote installer piped to shellsrc/mcp_lint/checks.py:197 · Remote installer piped to shellfix='Change command to "uvx". Install uv: curl -LsSf https://astral.sh/uv/install.sh | sh',Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST07
HIGH
Access to sensitive file pathssrc/mcp_lint/checks.py:438 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesfix="Store AWS credentials in ~/.aws/credentials or environment variables, not in MCP config.",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
References a credential file in the home directorysrc/mcp_lint/checks.py:438 · References a credential file in the home directoryfix="Store AWS credentials in ~/.aws/credentials or environment variables, not in MCP config.",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST03
MEDIUM
File permission modification commandsrc/mcp_lint/checks.py:527 · File permission modification command — agent changes file ownership/permissionsfix="Store private keys as files on disk (chmod 600) and reference them by path. Never embed key material in config files.",Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05
HIGH
Access to sensitive file pathssrc/mcp_lint/checks.py:505 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesfix="This includes dotfiles, SSH keys, ~/.aws credentials, browser profiles. Scope to a specific subdirectory.",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
npx invocation of non-well-known packagesrc/mcp_lint/data.py:150 · npx invocation of non-well-known package — may execute untrusted code# npx packages (npm) vs uvx packages (Python/uv)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Python subprocess execution detectedtests/test_checks.py:689 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Stripe-like API key pattern detectedtests/test_checks.py:302 · Stripe-like API key pattern detected — possible hardcoded or harvested key"env": {"STRIPE_SECRET_KEY": "sk_live_realproductionkey12345"}}Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
npx invocation of non-well-known packagetests/test_checks.py:514 · npx invocation of non-well-known package — may execute untrusted code"command": "uvx", # wrong - should be npxFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
GitHub token pattern detectedtests/test_checks.py:394 · GitHub token pattern detected — possible hardcoded or harvested token"ghp_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef123456"]}Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
AWS access key pattern detectedtests/test_checks.py:180 · AWS access key pattern detected — possible hardcoded or harvested key"env": {"AWS_ACCESS_KEY_ID": "AKIAIOSFODNN7EXAMPLE",Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
Stripe-like API key pattern detectedtests/test_checks.py:309 · Stripe-like API key pattern detected — possible hardcoded or harvested key"env": {"STRIPE_SECRET_KEY": "sk_test_sometestkey12345"}}Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
Python subprocess execution detectedtests/test_checks.py:680 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
GitHub token pattern detectedtests/test_checks.py:572 · GitHub token pattern detected — possible hardcoded or harvested token"ghp_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef123456"],Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
Slack token pattern detectedtests/test_checks.py:410 · Slack token pattern detected — possible hardcoded or harvested token"args": ["--token", "xoxb-123456789-ABCDEFGHIJK"]}Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
GitHub token pattern detectedtests/test_checks.py:702 · GitHub token pattern detected — possible hardcoded or harvested token"ghp_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef123456"],Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03

Cost to the agent

Instructions loaded
≈56 tok
1 file · 13 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-config-lint@0.2.0 as of 3 h ago. This is the package itself, not its dependencies.

What would make this Verified

11 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%
  1. Pipe-to-shell pattern≈ +9 on the totalBuild commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
  2. Unclaimed publisher≈ +8 on the totalClaim basilalshukaili: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
  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. References a credential file in the home directory≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
  5. Stripe-like API key pattern detected≈ +2 on the totalNever read or enumerate credential locations; accept a documented environment variable instead.
  6. Python subprocess execution detected≈ +2 on the totalBuild commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
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