@grum-os/cli@0.2.13
Keep buttons on the Grum Design Contract: a local drift check, Cursor hooks, and an MCP server.
AI Security Review
scanned 1mo ago · by lpm-firewall-aiInspected source shows user-invoked agent configuration mutation, which warrants a warning under the supplied policy. Network and command execution support Grum design checks, and no concrete malicious chain was identified.
Static reason
One or more suspicious static signals were detected.
Trigger
The user runs grum init cursor; Cursor subsequently activates configured hooks or the MCP server.
Impact
Grum can influence agent workflows and execute as an agent tool after setup; later retrieval is not pinned to this reviewed version.
Mechanism
The CLI writes repository-local configuration and an always-applied rule. The default MCP command uses npx --yes, permitting later package retrieval without a separate installation prompt.
AI rationale
Inspected source shows user-invoked agent configuration mutation, which warrants a warning under the supplied policy. Network and command execution support Grum design checks, and no concrete malicious chain was identified.
Evidence
grum.mjs.cursor/hooks.json.cursor/mcp.json.cursor/rules/grum-buttons.mdc.gitignore
Network endpoints1
app.grum.so
Decision evidence
public snapshotAI called this Suspicious at 90.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- package.json exposes the CLI without lifecycle scripts or runtime self-dependencies.
- The explicit grum init cursor command activates agent configuration setup.
- Setup writes repository-local Cursor hooks and MCP configuration.
- Configured hooks run Grum; the default MCP command can fetch Grum through npx --yes.
- Setup generates an always-applied Cursor design rule.
- Stored authentication tokens are checked against the selected service origin.
Evidence against
- No concrete malicious execution or covert credential export was identified.
- Configuration setup is user-invoked and preserves unrelated hook entries.
Behavioral surface
ChildProcessEnvironmentVarsNetworkWebSocket
HighEntropyStringsMinifiedUrlStrings
Source & flagged code
8 flaggedgrum.mjsView file
24`:""}${t.join(`
L25: `)}`.slice(0,Fp)}function Uo(e,t){let n=[...e.keys()].sort(),r=y=>e.has(y),s=new Map,o=(y,S,A,D)=>{let O=`${S}:${y}`,B=s.get(O);if(B){B.note.includes(A)||(B.note+=`; ${A}`);return}...
L26: `)}function ei(e,t){if(e.reviewReadiness&&!e.reviewReadiness.canRequest)return Ge(e.reviewReadiness);if(t)return"Grum already sent a follow-up in this conversation. Do not ask agai...
High
195return byText(nodes);
L196: }`}function si(e){if(typeof e!="string")return{error:"Send a URL."};let t=e.trim();if(!t)return{error:"Enter a live URL."};if(!/^https:\/\//i.test(t))return{error:"URL must start w...
L197: This repo starts its app at ${e}.
...
L208: ${n}`}function af(e){let t=e.toLowerCase().replace(/:\d+$/,"");return t==="localhost"||t==="127.0.0.1"}function mi(e){if(typeof e!="string")return{error:"Enter a live URL."};let t=...
L209: `).length;r.push({line:l,text:i})}if(r.length!==0){if(typeof t=="number"){let s=r.find(o=>Math.abs(o.line-t)<=12);if(s)return s.text}return r.length===1?r[0].text:void 0}}function ...
L210: `,{flag:o?"w":"a",mode:384}),vf(s,384),s}catch{return null}}import{setInterval as Pf,clearInterval as Ef}from"node:timers";var at=class{constructor(t=r=
High
Same File Env Network Execution
A single source file combines environment access, network access, and code or shell execution; review context before blocking.
grum.mjsView on unpkg · L195Findings
4 High6 Medium2 Low
HighChild Processgrum.mjs
HighSame File Env Network Executiongrum.mjs
HighCommand Output Exfiltrationgrum.mjs
HighTrigger Reachable Command Output Exfiltrationgrum.mjs
MediumNetwork
MediumEnvironment Vars
MediumSuspicious Lifecycle Evidencepackage.json
MediumAi Review Evidencegrum.mjs
MediumAi Review Evidencegrum.mjs
MediumAi Review Evidencegrum.mjs
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @grum-os/cli@0.2.13.
See all versions of @grum-os/cli for other recorded verdicts.
- Review the evidence and your use of @grum-os/cli@0.2.13 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.