registry / @mulmoclaude/core / 3.12.0
@mulmoclaude/core@3.12.0
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 2mo ago · by lpm-firewall-aiThe package contains an explicit runtime pathway that installs externally sourced Claude skills into a project control surface. Its lack of lifecycle hooks and path allowlisting make this a guarded extension-lifecycle risk rather than concrete malicious install behavior.
Static reason
One or more suspicious static signals were detected.
Trigger
A host invokes collection import for a selected registry collection.
Impact
Imported content can become an active Claude skill in the selected workspace.
Mechanism
Runtime remote skill-bundle import and allowlisted Claude-skill mirroring.
AI rationale
The package contains an explicit runtime pathway that installs externally sourced Claude skills into a project control surface. Its lack of lifecycle hooks and path allowlisting make this a guarded extension-lifecycle risk rather than concrete malicious install behavior.
Evidence
package.jsondist/skill-bridge/index.jsdist/collection/registry/server/index.jsdata/skills/<slug>/<workspaceRoot>/.claude/skills/<slug>/
Network endpoints2
receptron.github.io/mulmoclaude-collections/index.jsonraw.githubusercontent.com/receptron/mulmoclaude-collections/main
Decision evidence
public snapshotAI called this Suspicious at 86.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- Exports a skill bridge that writes allowlisted files into .claude/skills.
- Runtime collection import downloads a bundle then writes and mirrors it into active Claude skill paths.
- Remote collection import is callable at runtime; no npm lifecycle hook triggers it automatically.
Evidence against
- package.json defines only build, typecheck, test, and lint scripts; no preinstall/install/postinstall.
- Bridge restricts slugs and mirrored files to SKILL.md, schema.json, and allowlisted template paths.
- No credential harvesting, secret exfiltration, shell execution, or covert persistence was found in inspected paths.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsMinifiedTelemetryUrlStrings
Source & flagged code
4 flagged · loading sourcedist/discovery-B9zdNkgW.jsView file
1418package = @mulmoclaude/core; repositoryIdentity = mulmoclaude; dependency = @duckdb/node-api
L1418: async function duckDbInstance() {
L1419: if (instancePromise === null) instancePromise = import("@duckdb/node-api").then((mod) => mod.DuckDBInstance.create(":memory:"));
L1420: try {
High
Copied Package Dependency Bridge
Package metadata claims a different repository identity while copied source loads a runtime dependency bridge.
dist/discovery-B9zdNkgW.jsView on unpkg · L1418dist/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]/;
/** `<workspaceroot>/data/skills/<slug>` — the staging dir for a skill. */
function dataskilldir(workspaceroot, slug) {
Findings
2 High5 Medium5 Low
HighCopied Package Dependency Bridgedist/discovery-B9zdNkgW.js
HighTrigger Reachable External Ai Agent Control Surface Mutationdist/skill-bridge/index.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
MediumAi Review Evidencedist/skill-bridge/index.js
MediumAi Review Evidencedist/collection/registry/server/index.js
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowTelemetry
LowUrl Strings
Affected versions and remediation
This report applies to @mulmoclaude/core@3.12.0.
See all versions of @mulmoclaude/core for other recorded verdicts.
- Review the evidence and your use of @mulmoclaude/core@3.12.0 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.