registry / @mulmoclaude/core / 4.9.2

@mulmoclaude/core@4.9.2

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 1mo ago · by lpm-firewall-ai

The flagged operations are explicit library features, constrained by path validation and OAuth endpoint checks. With no lifecycle hook, self-dependency, or automatic execution chain, the source does not establish malicious behavior.

Static reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

Trigger

A host application explicitly imports and calls the Google or skill-bridge APIs.

Impact

These APIs can handle OAuth tokens or mirror staged skill files only when a host invokes them; no automatic install-time action was found.

Mechanism

Exported OAuth integration and allowlisted workspace file mirroring.

AI rationale

Evidence

data/skills/<slug>/SKILL.md.claude/skills/<slug>/SKILL.md~/.secrets/client_secret_*.jsongoogle-token.json

Network endpoints2

asia-northeast1-mulmoserver.cloudfunctions.netaccounts.google.com

Decision evidence

public snapshot

AI called this Clean at 91.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

The skill bridge can copy allowlisted staged skill files into a workspace Claude skills directory when its exported function is called.
The Google module reads OAuth client files and sends OAuth data to the configured Google sign-in broker.
The reviewed discovery and prompt-safety bundles are normal library code with exported APIs, not install or import hooks.

Evidence against

package.json has no preinstall, install, postinstall, or self-dependency.
The skill bridge restricts slugs and permitted relative paths before writing.
The broker requires HTTPS except for loopback and validates the Google consent host.
No child-process execution, dynamic code execution, credential harvesting loop, or automatic network trigger was found in the inspected files.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStrings

Source & flagged code

4 flagged

dist/discovery-BkIKvdh0.jsView file

Lines 1428-1468javascript

1428}

1429/** Return a path DuckDB can read as UTF-8: the original file when it

1430* already is UTF-8 (the cheap, common case — only the head is sniffed),

1431* else a decoded cache copy (see `decodeToCache`). Returns null when

1432* there is no readable file (missing, symlink, or containment-refused —

1433* see `safeCsvStat`), which callers render as an empty collection. */

1434async function ensureUtf8CsvPath(absPath, workspaceRoot) {

1435 const info = await safeCsvStat(absPath, workspaceRoot);

1436 if (info === null) return null;

1437 const head = await readHead(absPath, SNIFF_BYTES);

1438 const sample = head.length === SNIFF_BYTES ? head.subarray(0, 1048573) : head;

1439 if (!(head.length >= 2 && (head[0] === 255 && head[1] === 254 || head[0] === 254

1440 return decodeToCache(absPath, info);

1441}

1442var instancePromise = null;

1443/** Lazily create one shared in-memory DuckDB instance. The dynamic import

1444* keeps the native module OUT of core's load path — a platform where the

1445* prebuilt binding is missing degrades to a per-query error on dataSource

1446* collections only, never a broken core. A failed init is retried on the

1447* next call (the promise is reset). */

1448async function duckDbInstance() {

1449 if (instancePromise === null) instancePromise = import("@duckdb/node-api").then((mod) => mod.DuckDBInstance.create(":memory:"));

1450 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 · L1448

1451 return await instancePromise;

1452 } catch (err) {

1453 instancePromise = null;

1454 throw new BackendUnavailableError(`DuckDB is unavailable on this host (@duckdb/node-api failed to load: ${String(err)}) — dataSource collections cannot be read`);

1455 }

1456}

1457async function queryCsv(sql, params) {

1458 const connection = await (await duckDbInstance()).connect();

1459 try {

1460 return (await connection.runAndReadAll(sql, params)).getRowObjectsJS();

1461 } finally {

1462 connection.disconnectSync();

1463 }

1464}

1465async function csvList(absPath, primaryKey, workspaceRoot) {

1466 const utf8Path = await ensureUtf8CsvPath(absPath, workspaceRoot ?? getWorkspaceRoot());

1467 if (utf8Path === null) return {

1468 items: [],

dist/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) {

High

Trigger Reachable External Ai Agent Control Surface Mutation

Manifest-trigger-reachable source writes behavior-bearing configuration into a user or project AI-agent control surface.

dist/skill-bridge/index.jsView on unpkg

dist/promptSafety-caJWd1ZQ.cjs#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 1

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

dist/promptSafety-caJWd1ZQ.cjs#virtual:normalized:round1View on unpkg

dist/google/index.cjsView file

•matchType = previous_version_dangerous_delta matchedPackage = @mulmoclaude/core@4.9.0 matchedIdentity = npm:QG11bG1vY2xhdWRlL2NvcmU:4.9.0 similarity = 0.850 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/google/index.cjsView on unpkg

Source & flagged code

4 flagged · loading source

dist/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 · L1448

dist/skill-bridge/index.jsView file

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/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@4.9.2.

See all versions of @mulmoclaude/core for other recorded verdicts.

Review the evidence and your use of @mulmoclaude/core@4.9.2 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: 2026-09-14 12:46:53.461Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.