registry / @mulmoclaude/core / 4.2.0
@mulmoclaude/core@4.2.0
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-aiThis is a real first-party AI-agent extension lifecycle capability, but it is runtime host-invoked, scoped to a project workspace, and guarded by path and file allowlists. It does not meet the threshold for malicious install-time or broad foreign control-surface mutation.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
A consuming MulmoClaude host invokes a staged collection/skill write.
Impact
Creates or updates first-party project Claude skill configuration.
Mechanism
Allowlisted staged-skill mirroring into .claude/skills.
AI rationale
This is a real first-party AI-agent extension lifecycle capability, but it is runtime host-invoked, scoped to a project workspace, and guarded by path and file allowlists. It does not meet the threshold for malicious install-time or broad foreign control-surface mutation.
Evidence
package.jsondist/skill-bridge/index.jsdist/server-C-Ngd3g2.jsdata/skills/<slug>/SKILL.mddata/skills/<slug>/schema.json.claude/skills/<slug>/SKILL.md.claude/skills/<slug>/schema.json
Decision evidence
public snapshotAI called this Suspicious at 90.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- The exported skill bridge mirrors staged skill content into a project .claude/skills control surface.
- Runtime schema writes explicitly invoke that mirror for project collections.
Evidence against
- package.json has no npm lifecycle hook.
- Bridge accepts only validated slugs and an allowlist of SKILL.md, schema.json, or safe template paths.
- No credential harvesting, exfiltration, stealth persistence, or remote code execution was found in inspected paths.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsMinifiedTelemetryUrlStrings
Source & flagged code
4 flagged · loading sourcedist/discovery-P64fgtuD.jsView file
1436package = @mulmoclaude/core; repositoryIdentity = mulmoclaude; dependency = @duckdb/node-api
L1436: async function duckDbInstance() {
L1437: if (instancePromise === null) instancePromise = import("@duckdb/node-api").then((mod) => mod.DuckDBInstance.create(":memory:"));
L1438: try {
High
Copied Package Dependency Bridge
Package metadata claims a different repository identity while copied source loads a runtime dependency bridge.
dist/discovery-P64fgtuD.jsView on unpkg · L1436dist/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
3 High4 Medium5 Low
HighCopied Package Dependency Bridgedist/discovery-P64fgtuD.js
HighTrigger Reachable External Ai Agent Control Surface Mutationdist/skill-bridge/index.js
HighPrevious Version Dangerous Deltadist/itemId-BY2YPBkT.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
MediumAi Review Evidencedist/skill-bridge/index.js
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowTelemetry
LowUrl Strings
Affected versions and remediation
This report applies to @mulmoclaude/core@4.2.0.
See all versions of @mulmoclaude/core for other recorded verdicts.
- Review the evidence and your use of @mulmoclaude/core@4.2.0 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.