io.github.GuardBee/threat-rules
NPM · @GUARDBEE/MCP-THREAT-RULES
GuardBee MCP bridge to Agent Threat Rules (ATR) for runtime agent/MCP threat detection
Available components
Last scanned (16 hours ago)
Scores higher than 74% of npm servers
Category Security
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 → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 30 of 97 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to GuardBee/guardbee-mcp). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 2 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability57
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 362 tokens (~51/item across 7 items; 7 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management37
- Stability observed for 11 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage77
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 31% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
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.
- 25 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
- 23 Oct 26 +41
- Injection markers: unverified → pass ▲ security
- Known CVEs: unverified → pass ▲ security
- Tool coverage: unverified → 100 ▲ functional
- Dependency health: unverified → 0.87 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- Stability: unverified → 0.30 ▲ functional
- Package version: 0.3.7 → 0.4.2 functional
- 22 Oct 26 −39
- Known CVEs: partial → unverified ▼ security
- Stability: 0.23 → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Dependency health: partial → unverified ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Security disclosure: fail → pass ▲ functional
- Package version: 0.3.7 → 0.4.2 functional
- Package version: 0.3.7 → 0.4.1 functional
- Package version: 0.3.7 → 0.4.0 functional
- 21 Oct 26 +10
- Known CVEs: unverified → partial ▲ security
- Known CVEs: unverified → pass ▲ security
- Dependency health: unverified → partial ▲ functional
- Dependency health: unverified → 0.86 ▲ functional
- Package version: 0.3.6 → 0.3.7 functional
- 20 Oct 26 −10
- Known CVEs: pass → unverified ▼ security
- Dependency health: 0.86 → unverified ▼ functional
- Package version: 0.3.4 → 0.3.6 functional
- Package version: 0.3.4 → 0.3.5 functional
- 19 Oct 26 +1
- Package version: 0.3.3 → 0.3.4 functional
- 17 Oct 26 +28
- Injection markers: unverified → pass ▲ security
- First check of Judged manipulation: pass security
- Tool coverage: unverified → 100 ▲ functional
- Stability: unverified → 0.10 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- First check of Schema quality: fail functional
- First check of Schema quality: fair functional
- First check of Destructive annotations: pass functional
- First check of Schema quality: pass functional
- First check of Tool coverage: 31 functional
- 16 Oct 26 0
- Injection markers: unverified → pass ▲ security
- First check of Judged manipulation: pass security
- Tool coverage: unverified → 100 ▲ functional
- Stability: unverified → 0.07 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- First check of Schema quality: fail functional
- First check of Schema quality: fair functional
- First check of Destructive annotations: pass functional
- First check of Schema quality: pass functional
- First check of Tool coverage: 31 functional
- Package version: 0.3.2 → 0.3.3 functional
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 25 Oct 2026 · Analysed npm/@guardbee/mcp-threat-rules@0.4.2
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | GuardBee/guardbee-mcp |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/GuardBee/guardbee-mcp/.github/workflows/release.yml@refs/heads/main |
| Rekor log index | 3386364835 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:19053e3f1775b0c56c8376f2a0b1785cf7cbf26b1814edec2dad274903b198b047b9139df017b3a520eda16c8e4da2ec6d67d929a79af15199d040fcc |
Background: How many MCP packages publish verified provenance →
Dependencies 97 packages
| Packages resolved | 97 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
evaluate_event ~68
Evaluate a structured ATR AgentEvent JSON (type, content, fields, sessionId, …).
| Name | Type | Req | Description |
|---|---|---|---|
| event | string | yes | JSON AgentEvent: { type, content, fields?, sessionId?, agentId?, scanContext? } |
| format | string | – | – |
| lane | string | – | – |
No output schema declared.
No examples provided.
evaluate_file ~61
Read a local file and evaluate its contents against ATR + GuardBee rules
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | – |
| lane | string | – | – |
| path | string | yes | Path to a text file (max 2MB) |
| type | string | – | – |
No output schema declared.
No examples provided.
evaluate_text ~88
Evaluate free text against Agent Threat Rules (ATR) plus GuardBee KVKK/TR rules. Returns matches with follow-up scanner hints.
| Name | Type | Req | Description |
|---|---|---|---|
| content | string | yes | Text to evaluate |
| format | string | – | – |
| lane | string | – | Detection lane (default: hunt) |
| scanContext | string | – | – |
| type | string | – | ATR event type (default: llm_input) |
No output schema declared.
No examples provided.
explain_bridge ~23
Explain how Agent Threat Rules (ATR) complements GuardBee static MCP auditors
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
framework_map ~45
Show how GuardBee's runtime findings map to OWASP Top 10 for LLM Applications (2025) and MITRE ATLAS — the mapping guardbee-proxy report uses
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_rules ~46
List loaded ATR + GuardBee detection rules (optionally filter by category or source).
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| lane | string | – | – |
| source | string | – | – |
No output schema declared.
No examples provided.
rule_stats ~31
Summarize loaded rule counts by category and source (ATR vs GuardBee)
| Name | Type | Req | Description |
|---|---|---|---|
| lane | string | – | – |
No output schema declared.
No examples provided.
How do I install the io.github.GuardBee/threat-rules MCP server?
io.github.GuardBee/threat-rules runs locally as an npm package, launched with npx -y @guardbee/mcp-threat-rules. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @guardbee/mcp-threat-rules
claude mcp add guardbee-threat-rules -- npx -y @guardbee/mcp-threat-rules
What is the io.github.GuardBee/threat-rules MCP server?
io.github.GuardBee/threat-rules is an MCP server listed in the public MCP registry as io.github.GuardBee/threat-rules. GuardBee MCP bridge to Agent Threat Rules (ATR) for runtime agent/MCP threat detection. This page covers its npm package (@guardbee/mcp-threat-rules).
Is the io.github.GuardBee/threat-rules MCP server safe to use?
io.github.GuardBee/threat-rules scores 81 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 25 October 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.GuardBee/threat-rules MCP server expose?
io.github.GuardBee/threat-rules exposes 7 tools: evaluate_text, evaluate_file, evaluate_event, list_rules, rule_stats, and 2 more. Their descriptions and schemas cost roughly 362 tokens of context every time the server is loaded.
Is the io.github.GuardBee/threat-rules MCP server still maintained?
io.github.GuardBee/threat-rules is still listed as active in the MCP registry. We last reached this channel on 25 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.GuardBee/threat-rules MCP server under?
io.github.GuardBee/threat-rules declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.