io.github.mlawsonking/agent-firewall-mcp

NPM · AGENT-FIREWALL-MCP · SCANNED AUG 3

Input/output safety for AI agents: known-pattern injection and obfuscation scan, URL/IP, secrets.

Available components

+23 this week 69 69 Trust /100

Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →

Supply Chain Security87

No malware found by supply-chain analysis.Pass
Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.Partial
No install/post-install scripts declared.Pass
Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree. View diagnostics → Partial

Provenance & Transparency45

Source repository is publicly reachable at the declared URL. View diagnostics → Pass
Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
Clear OSI-approved license (MIT).Pass
Actively maintained (last published 2 days ago).Pass
Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail

Schema Quality & AI Usability77

AI-judged instruction clarity (excellent).Pass
Tool/resource definitions use about 461 tokens (~92/item across 5 items; 5 tools + 0 resources), lean.Pass
Usage-examples check failed: none of the tools include examples. See how to fix → Fail

Stability & Change Management23

Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial

Tool Coverage100

100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
100% of tool parameters carry a description.Pass

Capabilities100

Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · agent-firewall-mcp

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add mlawsonking-agent-firewall-mcp -- npx -y agent-firewall-mcp

# add to Codex CLI

codex mcp add mlawsonking-agent-firewall-mcp -- npx -y agent-firewall-mcp

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mlawsonking-agent-firewall-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "agent-firewall-mcp"
      ],
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add mlawsonking-agent-firewall-mcp --command npx --arg -y --arg agent-firewall-mcp

# ~/.hermes/config.yaml

mcp_servers:
  mlawsonking-agent-firewall-mcp:
    command: "npx"
    args: ["-y", "agent-firewall-mcp"]

// mcp.json

{
  "mcpServers": {
    "mlawsonking-agent-firewall-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "agent-firewall-mcp"
      ]
    }
  }
}

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

2 Aug 26 +48
- Provenance: unverified → fail ▼ security
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Malware scan: unverified → pass ▲ security
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: unverified → excellent ▲ functional
- Maintenance: unverified → pass ▲ functional
- Stability: unverified → 0.20 ▲ functional
- Dependency health: unverified → partial ▲ functional
- License: unverified → pass ▲ functional
- MCP protocol: unverified → pass ▲ functional
- First check of Schema quality: unverified functional
- Licence: MIT functional
31 Jul 26 −7
- First check of Stability: unverified security
- First check of Capabilities: unverified functional
- Package version: 1.0.1 → 1.2.0 functional
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
30 Jul 26 −18
- Malware scan: pass → unverified ▼ security
27 Jul 26 46

First indexed and scored.

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Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Analysed npm/[email protected]

Provenance none

Ecosystem: npm · Outcome: none

Dependencies 95 packages

95 packages in the resolved dependency tree · 95 deprecated · 29 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 5 exposed · ~461 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens

check_ip ~78

Reputation for an IP address: Tor exit node, Spamhaus listing, ASN and owner, reverse DNS, datacenter or residential. Needs the network. Private and loopback addresses are answered locally. Network: needs Team Cymru DNS, Spamhaus ZEN, check.torproject.org.

Input Output Examples

Name	Type	Req	Description
ip	string	yes	IPv4 or IPv6 address.

No output schema declared.

No examples provided.

check_password ~89

Check whether a password appears in the Have I Been Pwned breach corpus. The password never leaves the machine: only the first 5 characters of its SHA-1 are sent (k-anonymity), and the match is done locally. Network: needs api.pwnedpasswords.com.

Input Output Examples

Name	Type	Req	Description
password	string	yes	The password to check. Only a 5-character hash prefix is transmitted.

No output schema declared.

No examples provided.

check_url ~98

Assess a URL before fetching or showing it: structure, lookalike brand domains, punycode, embedded credentials, abuse-prone TLDs, plus domain age. The structural half is local; domain age needs RDAP. Network: needs rdap.org. The network is only used when the domain age is looked up (RDAP). The structural analysis is local and runs offline.

Input Output Examples

Name	Type	Req	Description
url	string	yes	The URL to check.

No output schema declared.

No examples provided.

scan_content ~110

Scan untrusted text for prompt-injection patterns and Unicode obfuscation before an agent acts on it. Deterministic known-pattern matching plus hidden-character detection, not a classifier: novel phrasing is not covered. Pass text directly, or a url to fetch and scan. Runs fully locally: the input never leaves this machine.

Input Output Examples

Name	Type	Req	Description
text	string	—	The text to scan.
url	string	—	A page to fetch and scan instead of text. Fetching is SSRF-guarded.

No output schema declared.

No examples provided.

scan_secrets ~86

Find API keys, tokens, private keys and PII in text and return a redacted copy with the secret VALUES removed. Fully local: the text never leaves the machine. Matches 22 known credential formats plus generic assignments; a secret in an unknown format is not detected. Runs fully locally: the input never leaves this machine.

Input Output Examples

Name	Type	Req	Description
text	string	yes	The text to scan.

No output schema declared.

No examples provided.

On this page

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Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

27 Jul 3 Aug