Skills/PyPI/mcp-shield-pii

mcp-shield-pii@1.0.0

CAUTION· not started

Publisher claims: "Intercepting gateway proxy for MCP clients/servers — real-time PII redaction with regex, NLP, and optional subinterpreter concurrency" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher gadwant · publishing for 251 daysInstalls 29Last detonated 5d 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 slack.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 -- uvx mcp-shield-pii

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 2026-11-09 and scored it 77/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Auto-update or dynamic fetch configuration; Auto-update or dynamic fetch configuration; Slack webhook URL. 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
Auto-update or dynamic fetch configurationsrc/mcp_shield_pii/config/loader.py:1 · Auto-update or dynamic fetch configuration — agent may load new code at runtime"""Configuration loader with TOML support, hot-reload, and schema validation."""Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
HIGH
Auto-update or dynamic fetch configurationsrc/mcp_shield_pii/pipeline.py:72 · Auto-update or dynamic fetch configuration — agent may load new code at runtime"""Hot-reload configuration."""Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagesrc/mcp_shield_pii/cli.py:210 · npx invocation of non-well-known package — may execute untrusted codedownstream_command = "npx -y @modelcontextprotocol/server-postgres postgresql://localhost/mydb"Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
HIGH
Slack webhook URLsrc/mcp_shield_pii/cli.py:259 · Slack webhook URL — data will be sent to Slackurl = "https://hooks.slack.com/services/YOUR/WEBHOOK/URL"Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07
MEDIUM
AWS access key pattern detectedtests/unit/test_regex_engine.py:92 · AWS access key pattern detected — possible hardcoded or harvested keyresults = engine.detect("Key: AKIAIOSFODNN7EXAMPLE")Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
URL with embedded credentialstests/unit/test_regex_engine.py:126 · URL with embedded credentials — may be phishing or credential leakingresults = engine.detect("Connect to https://admin:[email protected]/path")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
Stripe-like API key pattern detectedtests/unit/test_regex_engine.py:100 · Stripe-like API key pattern detected — possible hardcoded or harvested keyresults = engine.detect("Key: sk_live_abcdefghijk")Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
HIGH
Auto-update or dynamic fetch configurationsrc/mcp_shield_pii/config/watcher.py:1 · Auto-update or dynamic fetch configuration — agent may load new code at runtime"""Hot-reload watcher for config files using watchfiles."""Fix: Pin versions and sources; vendor anything fetched at install time.
AST06

Cost to the agent

Instructions loaded
≈71 tok
1 file · 34 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-shield-pii@1.0.0 as of 5d ago. This is the package itself, not its dependencies.

What would make this Verified

3 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%
  1. Unclaimed publisher≈ +8 on the totalClaim gadwant: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
  2. Auto-update or dynamic fetch configuration≈ +4 on the totalPin versions and sources; vendor anything fetched at install time.
  3. Slack webhook URL≈ +4 on the totalRemove the call, or declare the host in frontmatter and explain in the README what is sent and why.
  4. npx invocation of non-well-known package≈ +2 on the totalPin versions and sources; vendor anything fetched at install time.
  5. AWS access key pattern detected≈ +2 on the totalNever read or enumerate credential locations; accept a documented environment variable instead.
  6. URL with embedded credentials≈ +2 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
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