registry / @mulmoclaude/core / 5.3.0
@mulmoclaude/core@5.3.0
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 source establishes a user-invoked registry import that adds allowlisted skill files to a project Claude skills directory. With no npm lifecycle trigger, this fits the warning category for agent extension setup rather than a malicious install hook.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
A host calls the registry import operation for a collection.
Impact
The imported skill content becomes available to Claude CLI in that project.
Mechanism
When the workspace has a staging tree, the importer mirrors allowlisted imported skill files into the workspace’s `.claude/skills/<slug>` directory.
AI rationale
The source establishes a user-invoked registry import that adds allowlisted skill files to a project Claude skills directory. With no npm lifecycle trigger, this fits the warning category for agent extension setup rather than a malicious install hook.
Evidence
dist/collection/registry/server/index.jsdist/skill-bridge/index.js
Decision evidence
public snapshotAI called this Suspicious at 90.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- An explicit registry import can mirror imported skill files into the project’s `.claude/skills` directory.
- The mirror copies only `SKILL.md`, `schema.json`, and paths accepted by the action-template allowlist.
- The package manifest lists build, typecheck, test, and lint scripts; no install lifecycle hook is present.
Evidence against
- The observed mirror is conditional on a registry import and a project staging directory; the manifest shows no npm install hook that triggers it.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStringsMinifiedTelemetryUrlStrings
Source & flagged code
4 flagged · loading sourcedist/discovery-B_64PBZU.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-B_64PBZU.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-B_64PBZU.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/google/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@5.3.0.
See all versions of @mulmoclaude/core for other recorded verdicts.
- Review the evidence and your use of @mulmoclaude/core@5.3.0 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.