Skills/npm/mojulo

mojulo@3.1.1

CAUTION· not started

Publisher claims: "Mojulo — a 3D compiler for coding agents: an MCP server that runs wherever your agent runs, on your machine or in the throwaway Linux box it gives itself (the Claude app or web, ChatGPT work mode with Codex, Grok chat, Meta Muse), where you build worlds, " Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher zombico · publishing for 181 daysInstalls 8,218Last detonated 10 h ago
What would fix thisWatchDispute verdict

Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Caution here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
API_KEY_ENCRYPTION_KEYCONTROL_PLANE_PASSWORDConfiguration, not credentials: CLAUDE_CONFIG_DIR, CONTROL_PLANE_USER, MOJULO_AGENT_RUNTIME, MOJULO_APP_RUNTIME, MOJULO_BLENDER, MOJULO_CHROMIUM, MOJULO_CONTROL_DIR, MOJULO_DAEMONS, MOJULO_DISTRIBUTION, MOJULO_ELECTRON, MOJULO_FFMPEG, MOJULO_FFMPEG_DIR, MOJULO_GODOT, MOJULO_HOME, MOJULO_MCP_TELEMETRY, MOJULO_MCP_TELEMETRY_CAPTURE, MOJULO_MCP_TOOL_TIMEOUT_MS, MOJULO_MODELS_DIR, MOJULO_OUTCOMES_DIR, MOJULO_PACKS, MOJULO_ROLES, MOJULO_SEMANTIC_INDEX_DISABLED, MOJULO_TOOL_PACKS, MOJULO_TRIGGER_RUNTIME, MOJULO_UI_HOST, MOJULO_UI_NO_FETCH, MOJULO_UNITY, MOJULO_UNREAL, OLLAMA_HOST, SQLITE_PATH, STORAGE_ROOT
Where it talks to
no vendor host named in the codeAlso docker.internal, nodejs.org — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names docker.internal, nodejs.org as well as its own vendor. The guard injects API_KEY_ENCRYPTION_KEY, CONTROL_PLANE_PASSWORD only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- npx -y mojulo

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-14 and scored it 76/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Access to sensitive file paths; Access to sensitive file paths; Access to sensitive file paths. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 15 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
14sprocessdependency install exit 1 · (Use `node --trace-warnings ...` to show where the warning was created) npm error Cannot read properties of null (reading 'edgesOut') npm error A complete log of this run can be found in: /tmp/ks-detonate-CZYWWk/task/home/.npm/_logs/2026-11-14T03_18_00_166Z-debug-0.log
14sclaimednot started: dependency install failed (exit 1); the server itself was not observed
14sprocessscript backend runs setup only
14sprocessno install scripts to re-run

Static findings

HIGH
Access to sensitive file pathslib/mcp/server.js:90 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files**Secrets:** never \`cat\` or \`Read\` a \`.env\` under \`$MOJULO_HOME\` or in any directory mojulo generated.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsscripts/mcp-init.mjs:22 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files* - Never touch .env secrets. The key step goes through ApiKeyRepository +Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathslib/runners/engine.js:244 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesthrow new Error('APP_MCP_BEARER missing from .env after installScaffold — bearer policy broken');Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathslib/mcp/packs.js:367 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files…local apps (install_scaffold → start / stop / status, the running list, per-app .env keys), runtime daemons (list / status / start / stop / restart), and the agent-…Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathslib/runners/local.js:13 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files* filesystem work on the artifact's .env with no shared runtime state, soFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Destructive file system command detectedscripts/mcp-init.mjs:242 · Destructive file system command detected// For a host we can DETECT but must not write to: its config path or formatFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Access to sensitive file pathslib/mcp/packs.js:375 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files// list_running and the .env trio act on local apps (lib/runners/local.js). Until 3.0 they satFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathslib/runners/engine.js:232 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files// .env or mints a new one. We need the bearer either way to authenticateFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
npx invocation of non-well-known packagelib/mcp/packs.js:714 · npx invocation of non-well-known package — may execute untrusted code/** The command that installs `group` on this host (`npx -y mojulo@<version> install <group>`). */Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-stdio.mjs:68 · npx invocation of non-well-known package — may execute untrusted code// `npx mojulo --help` prints usage at once and never falls through toFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagelib/embedder/local.js:41 · npx invocation of non-well-known package — may execute untrusted code// - MOJULO_MODELS_DIR set (npx flow): cache lives under the user's home,Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Process kill commandbin/app-runtime.mjs:91 · Process kill command — agent can terminate processes// On signal: close the HTTP server and exit, but DO NOT kill the running apps —Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
npx invocation of non-well-known packagescripts/mcp-cli.mjs:280 · npx invocation of non-well-known package — may execute untrusted code* - the bin through npx (its copy under the npm cache's `_npx`, or npm_command=exec) → `npx -y mojulo@<version>`Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-cli.mjs:283 · npx invocation of non-well-known package — may execute untrusted codeexport function cliInvocation({ argv1 = '', env = {}, isSource = false, npx = () => 'npx -y mojulo' } = {}) {Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-stdio.mjs:76 · npx invocation of non-well-known package — may execute untrusted code// source checkout's; an npx copy is pinned to this version.Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagebin/app-runtime.mjs:15 · npx invocation of non-well-known package — may execute untrusted code* MOJULO_APP_RUNTIME=enabled npx -y -p mojulo mojulo-app-runtimeFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagelib/workers/find.js:79 · npx invocation of non-well-known package — may execute untrusted code// a package directory up the tree from the working directory (entry points chdir to control/; an npx install hoists),Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-ui.mjs:18 · npx invocation of non-well-known package — may execute untrusted code* npx -y -p mojulo mojulo-ui # port 3001 (or next free), opens browserFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagelib/mcp/packs.js:73 · npx invocation of non-well-known package — may execute untrusted code// Listed FIRST, 3D packs leading: tools/list and `npx mojulo tools` read thisFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
File type combined with upload actionscripts/mcp-cli.mjs:8 · File type combined with upload action — agent may exfiltrate local data files* console.log output to stderr. This module owns real stdout: results goFix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07
MEDIUM
npx invocation of non-well-known packagescripts/mcp-init.mjs:35 · npx invocation of non-well-known package — may execute untrusted code* (or a dead npx path) is rewritten to the current absolute-npx form. EntriesFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagelib/lazy-deps.js:4 · npx invocation of non-well-known package — may execute untrusted code* A host spawns `npx mojulo` and waits for MCP `initialize` under its own startup timeout (ClaudeFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-stdio.mjs:80 · npx invocation of non-well-known package — may execute untrusted codeconst cmd = cliInvocation({ argv1: process.argv[1], env: process.env, isSource: /mcp-stdio\.mjs$/.test(process.argv[1] || ''), npx: () => `npx -y mojulo@${version}` });Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagelib/motion/ffmpeg.js:6 · npx invocation of non-well-known package — may execute untrusted code* explicit/lazy so `npx mojulo` doesn't immediately pull a model. We mirror thatFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-ui.mjs:10 · npx invocation of non-well-known package — may execute untrusted code* (lib/version/ui-package.js), so a host's cold `npx mojulo` no longer downloads it. This bin isFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Process kill commandlib/db/index.js:773 · Process kill command — agent can terminate processes-- session revocation (bump it to kill all of a user's sessions).Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
npx invocation of non-well-known packagescripts/mcp-ui.mjs:19 · npx invocation of non-well-known package — may execute untrusted code* npx -y -p mojulo mojulo-ui --port 3999 # pin the portFix: Pin versions and sources; vendor anything fetched at install time.
AST06
LOW
Unpinned dependencylib/version/local.js:43 · Unpinned dependency* runs `npm i -g mojulo@latest`. Checked by looking for a `.git` dir adjacentFix: Pin the exact version (`[email protected]`, `==1.2.3`) so every install gets the bytes that were reviewed.
AST06
MEDIUM
npx invocation of non-well-known packagelib/mcp/server.js:119 · npx invocation of non-well-known package — may execute untrusted code// `cmd` is the invocation the caller is actually using (`mojulo`, `npx -y mojulo@<v>`, orFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagelib/embedder/local.js:25 · npx invocation of non-well-known package — may execute untrusted code* The cache dir resolves to MOJULO_MODELS_DIR if set (npx flow lands this atFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-init.mjs:91 · npx invocation of non-well-known package — may execute untrusted code'Usage: npx mojulo init [options]',Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-init.mjs:3 · npx invocation of non-well-known package — may execute untrusted code* `npx mojulo init` — one-shot installer.Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-cli.mjs:56 · npx invocation of non-well-known package — may execute untrusted code* another way (`node scripts/mcp-stdio.mjs` in a checkout, `npx -y mojulo@<version>`) is told which word stands forFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-cli.mjs:5 · npx invocation of non-well-known package — may execute untrusted code* Reached via the subcommand branch in mcp-stdio.mjs (`npx mojulo tools|Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-stdio.mjs:40 · npx invocation of non-well-known package — may execute untrusted code: `to install it), then re-run: npx mojulo init\n`)Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagelib/mcp/packs.js:706 · npx invocation of non-well-known package — may execute untrusted code// for this install: `npx -y mojulo@<running version> install <group>` from npm or theFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
Process kill commandlib/runners/engine.js:434 · Process kill command — agent can terminate processes// Test seam — kill everything and clear the Map. Pidfiles/inventory are leftFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
npx invocation of non-well-known packagescripts/mcp-init.mjs:6 · npx invocation of non-well-known package — may execute untrusted code* `mojulo` bin), so the user-facing command is `npx mojulo init`. FullyFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-ui.mjs:20 · npx invocation of non-well-known package — may execute untrusted code* npx -y -p mojulo mojulo-ui --no-open # skip browser launchFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-stdio.mjs:46 · npx invocation of non-well-known package — may execute untrusted code// `npx mojulo init` — one-shot installer. Branch out BEFORE this processFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagelib/mcp/server.js:114 · npx invocation of non-well-known package — may execute untrusted code// caller (`npx mojulo call …` in an agent's box) never sends `initialize`, soFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagescripts/mcp-ui.mjs:11 · npx invocation of non-well-known package — may execute untrusted code* the shim that keeps `npx -y -p mojulo mojulo-ui` and `mojulo init`'s launch working:Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
File permission modification commandlib/motion/ffmpeg.js:16 · File permission modification command — agent changes file ownership/permissions* verify its SHA-256 → gunzip → chmod +x → functional `-version` gate.Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05

Cost to the agent

Instructions loaded
≈97 tok
1 file · 81 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for mojulo@3.1.1 as of 2 h ago. This is the package itself, not its dependencies.

What would make this Verified

4 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%
  1. Unclaimed publisher≈ +8 on the totalClaim zombico: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
  2. Access to sensitive file paths≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
  3. Destructive file system command detected≈ +4 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
  4. npx invocation of non-well-known package≈ +2 on the totalPin versions and sources; vendor anything fetched at install time.
  5. Process kill command≈ +2 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
  6. File type combined with upload action≈ +2 on the totalRemove the call, or declare the host in frontmatter and explain in the README what is sent and why.
Publish a new version to npm, then queue it here. Not your skill? Claim the handle to get verdict changes by email.Claim zombicoPropose a patch to the maintainer