@mulmoclaude/core@4.9.4
Shared server-side core for MulmoClaude and MulmoTerminal — the always-shipped-together subsystems consolidated behind subpath exports so the two hosts can't drift. Server-only except the browser-safe ./artifacts, ./whisper/client, ./workspace-setup/slug,
AI Security Review
scanned 14d ago · by lpm-firewall-aiThe package provides an explicit registry-import feature that mirrors allowlisted files into Claude’s skill directory. This is a warning-level agent capability; the inspected source does not show install-time mutation or a concrete attack.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
A caller invokes the registry import operation for a collection.
Impact
The imported skill may become available to Claude CLI; no attack beyond this configuration capability was established.
Mechanism
The import writes collection files to staging and mirrors allowlisted skill and action-template files into `.claude/skills/<slug>`.
AI rationale
The package provides an explicit registry-import feature that mirrors allowlisted files into Claude’s skill directory. This is a warning-level agent capability; the inspected source does not show install-time mutation or a concrete attack.
Evidence
package.jsondist/collection/registry/server/index.jsdist/collection/registry/server/index.cjsdist/skill-bridge/index.jsdist/skill-bridge/index.cjsdist/server-Div1i_k5.cjsdist/server-Dk9x1VLG.js.claude/skills/<slug>data/skills/<slug>
Decision evidence
public snapshotAI called this Suspicious at 89.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- package.json defines build, typecheck, test, and lint scripts, with no install lifecycle hook.
- Registry imports can mirror skill files into the workspace’s `.claude/skills` directory.
- The bridge limits mirrored files to `SKILL.md`, `schema.json`, and safe action-template paths.
- An explicit `importRegistry` call runs the import operation that reaches the mirror step.
Evidence against
- The mirror runs as part of a registry import operation, not an npm lifecycle hook.
- The bridge rejects paths outside the staging tree and checks skill slugs and allowed paths.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsMinifiedTelemetryUrlStrings
Source & flagged code
4 flagged · loading sourcedist/discovery-BkIKvdh0.jsView file
1448package = @mulmoclaude/core; repositoryIdentity = mulmoclaude; dependency = @duckdb/node-api
L1448: async function duckDbInstance() {
L1449: if (instancePromise === null) instancePromise = import("@duckdb/node-api").then((mod) => mod.DuckDBInstance.create(":memory:"));
L1450: try {
High
Copied Package Dependency Bridge
Package metadata claims a different repository identity while copied source loads a runtime dependency bridge.
dist/discovery-BkIKvdh0.jsView on unpkg · L1448dist/skill-bridge/index.jsView file
•Manifest-trigger-reachable source links an external AI-agent control path to a behavior-bearing write operation.
import { t as issafeactiontemplatepath } from "../templatepath-k_wnbl_q.js";
import { mkdirsync, readfilesync, renamesync, rmsync, writefilesync } from "node:fs";
import path from "node:path";
var data_skills_dir = path.join("data", "skills");
var claude_skills_dir = path.join(".claude", "skills");
var sk[redacted] = "skill.md";
var schema_filename = "schema.json";
var slug_re = /^[a-z0-9]+(-[a-z0-9]+)*$/;
var rm_re = /^\s*rm\s+((?:-[a-za-z]+\s+)+)['"]?data\/skills\/([a-z0-9-]+)\/?['"]?\s*$/;
var recursive_flag_re = /[rr]/;
function dataskilldir(workspaceroot, slug) {
Findings
4 High3 Medium5 Low
HighCopied Package Dependency Bridgedist/discovery-BkIKvdh0.js
HighTrigger Reachable External Ai Agent Control Surface Mutationdist/skill-bridge/index.js
HighSemantic Analysis Limiteddist/promptSafety-caJWd1ZQ.cjs#virtual:normalized:round1
HighPrevious Version Dangerous Deltadist/collection-watchers/index.cjs
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowTelemetry
LowUrl Strings
Affected versions and remediation
This report applies to @mulmoclaude/core@4.9.4.
See all versions of @mulmoclaude/core for other recorded verdicts.
- Review the evidence and your use of @mulmoclaude/core@4.9.4 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.