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@north-light/crouter@0.3.358: Suspicious npm security report | LPM Firewall

registry / @north-light/crouter / 0.3.358

@north-light/crouter@0.3.358

Renamed: npm install -g @crouter/cli (github.com/crouton-labs/crouter)

crtr — agent runtime with memory, plugins, and marketplaces

AI Security Review

scanned 11d ago · by lpm-firewall-ai

LPM treats this as warn-only first-party agent extension lifecycle risk. The first invocation of the crtr CLI, not the npm postinstall hook, installs this package's Pi coding-agent extensions and related plugins into the user Pi settings and can register the official marketplace. The bundled Claude command extension then writes shim files under the Pi agent directory and can execute shell blocks from those command files when a slash command is used.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

First crtr CLI command when no first-run marker exists, CRTR_NO_AUTO_INIT is unset, and the package directory is not a git checkout; later, Pi loads the installed extension.

Impact

User-level Pi agent configuration and prompt shims change without a separate setup confirmation, and later slash commands can run shell text taken from local Claude command files. No hidden credential export or install-hook hijack was found.

Mechanism

reconcileFirstRun calls installSetupPackage for a fixed package list and configureCrtrExtensions rewrites Pi settings. The extension's resources_discover hook rebuilds shims from ~/.claude and the input hook expands shell blocks.

AI rationale

First-run CLI startup installs this package's own Pi extensions and companion plugins and rewrites Pi settings, which is guarded first-party agent setup rather than an npm install-hook takeover. Postinstall only stages the local runtime and points the user at an explicit setup command, and no self-dependency or secret-export chain was found.

Evidence

dist/cli.jsdist/commands/sys/setup-core.jsdist/builtin-pi-packages/pi-crtr-extensions/extensions/claude-plugin-commands.ts.pi/agent/settings.json

Decision evidence

public snapshot

AI called this Suspicious at 74.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

Ordinary crtr CLI startup calls maybeReconcileFirstRun unless CRTR_NO_AUTO_INIT=1 or a first-run marker already exists.
That first run installs missing Pi packages (crtr-extensions, official marketplace, oauth-adapter on a TTY, capture-plugin, exa-search-plugin) with no separate setup confirmation.
configureCrtrExtensions rewrites the user Pi settings packages list so this package's extensions are registered.
After that extension loads, resources_discover copies ~/.claude commands and skills into ~/.pi/agent/.plugin-command-shims, and slash input can run embedded shell blocks.
npm postinstall does not perform that agent setup; it only prints that the user can run crtr sys setup.

Evidence against

First-run reconcile returns immediately for a git source checkout and when CRTR_NO_AUTO_INIT=1 or the marker file exists.
scripts/postinstall.mjs stages a local runtime generation and does not import setup-core.
The runtime installer runs npm ci with --ignore-scripts, so a nested install does not re-enter lifecycle hooks.
dependencies do not include the same package name @north-light/crouter.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

Manifest

CopyleftLicense

scanned 975 file(s), 4.13 MB of source, external domains: 127.0.0.1, api.anthropic.com, api.individual.githubcopilot.com, api.openai.com, astral.sh, auth.openai.com, chatgpt.com, claude.ai, console.anthropic.com, directory.example, feross.org, github.com, jimmy.warting.se, nerdfonts.com, platform.claude.com, radius.pi.dev, runtime.local, www.apache.org

Oversized source lightweight scan

dist/clients/attach/viewer.js8.46 MB file, sampled 256 KB

NetworkEnvironmentVarsDynamicRequirePossibleObfuscationHighEntropyStringsMinifiedUrlStringsapi.individual.githubcopilot.comfeross.orggithub.comjimmy.warting.seradius.pi.devwww.apache.org

Source & flagged code

24 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

bin/runtime-selector.mjsView file

1import { spawn, spawnSync } from 'node:child_process'; L2: import { existsSync, lstatSync, mkdirSync, openSync, readFileSync, readdirSync, readlinkSync, realpathSync, writeFileSync } from 'node:fs';

High

Child Process

Package source references child process execution.

bin/runtime-selector.mjsView on unpkg · L1

116try { L117: const mod = await import(pathToFileURL(join(dirname(entryPath), 'core', 'termrender', 'termrender.js')).href); L118: if (mod.isRendererReady()) return;

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/runtime-selector.mjsView on unpkg · L116

dist/core/runtime/stamp/channel.jsView file

1var m=Object.defineProperty;var o=(n,t)=>m(n,"name",{value:t,configurable:!0});import{createHash as f}from"node:crypto";const i=Symbol.for("@crouton-kit/crtr:stamp-channel"),g=16;f...

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/core/runtime/stamp/channel.jsView on unpkg · L1

dist/commands/sys/feedback.jsView file

1var h=Object.defineProperty;var a=(r,e)=>h(r,"name",{value:e,configurable:!0});import{spawnSync as y}from"node:child_process";import{mkdirSync as g,writeFileSync as w}from"node:fs"... L2: `)[0].trim();return`[feedback] ${n.length>80?n.slice(0,79)+"\u2026":n}`}a(L,"deriveTitle");function j(r,e){const t=[`| crtr version | \`${e.version}\` |`,`| platform | ${e.platform... L3: `)+` L4: `}a(j,"buildBody");async function q(r,e,t,n,o){const s=process.env[R];try{const i=await fetch(r,{method:"POST",headers:{"content-type":"application/json",...s!==void 0&&s!==""?{aut... L5: `).filter(o=>o.startsWith("http")).pop()??t.stdout.trim()}:{error:t.error!==void 0?`gh not available: ${t.error.message}`:t.stderr?.trim()||`gh exited ${t.status}`}}a(F,"deliverToG...

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

dist/commands/sys/feedback.jsView on unpkg · L1

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = dist/commands/sys/feedback.js matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/commands/sys/feedback.jsView on unpkg

dist/hook-authoring.jsView file

1var B=Object.defineProperty;var o=(e,r)=>B(e,"name",{value:r,configurable:!0});import{spawn as R}from"node:child_process";import{Console as T}from"node:console";import{posixProcess... L2: `),c=d("hook_handler_failed",`handler failed for ${f.value.op}`)}const a=I(c,f.value);a.valid||(i.write(`hook handler ${f.value.op} returned an invalid response: ${a.message} L3: `),c=d("invalid_hook_response",a.message))}catch(m){i.write(`hook executable failed: ${b(m)} L4: `),c=d("hook_executable_failed","hook executable could not read its request")}_(s,c)}o(X,"runHookExecutable");async function Y(e,r){const t=e[0];return t===void 0||t===""?d("local_... L5: `)}o(_,"writeResponse");async function C(e){const r=[];for await(const t of e)r.push(Buffer.isBuffer(t)?t:Buffer.from(t));return Buffer.concat(r

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

dist/hook-authoring.jsView on unpkg · L1

1Trigger-reachable command-output exfiltration chain: manifest.main -> dist/index.js -> dist/hook-authoring.js L1: var B=Object.defineProperty;var o=(e,r)=>B(e,"name",{value:r,configurable:!0});import{spawn as R}from"node:child_process";import{Console as T}from"node:console";import{posixProcess... L2: `),c=d("hook_handler_failed",`handler failed for ${f.value.op}`)}const a=I(c,f.value);a.valid||(i.write(`hook handler ${f.value.op} returned an invalid response: ${a.message} L3: `),c=d("invalid_hook_response",a.message))}catch(m){i.write(`hook executable failed: ${b(m)} L4: `),c=d("hook_executable_failed","hook executable could not read its request")}_(s,c)}o(X,"runHookExecutable");async function Y(e,r){const t=e[0];return t===void 0||t===""?d("local_... L5: `)}o(_,"writeResponse");async func

High

Trigger Reachable Command Output Exfiltration

A manifest entrypoint or package-local install chain reaches command-output exfiltration behavior.

dist/hook-authoring.js

dist/native/linux/addon.nodeView file

•path = dist/native/linux/addon.node kind = native_binary sizeBytes = 22272 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

dist/native/linux/addon.nodeView on unpkg

dist/clients/attach/photon_rs_bg.wasmView file

•path = dist/clients/attach/photon_rs_bg.wasm kind = wasm_module sizeBytes = 1881634 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

dist/clients/attach/photon_rs_bg.wasmView on unpkg

dist/clients/attach/viewer.jsView file

•path = dist/clients/attach/viewer.js kind = oversized_source_file sizeBytes = 8867922 magicHex = [redacted]

Medium

Oversized Source File

Package contains source files above the normal full-analysis size ceiling.

dist/clients/attach/viewer.jsView on unpkg

dist/builtin-pi-packages/pi-crtr-extensions/node_modules/yaml/dist/parse/lexer.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 4

High

Semantic Analysis Limited

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

dist/builtin-pi-packages/pi-crtr-extensions/node_modules/yaml/dist/parse/lexer.js#virtual:normalized:round1View on unpkg

dist/core/termrender/termrender.jsView file

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = dist/core/termrender/termrender.js matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/termrender/termrender.jsView on unpkg

dist/core/canvas/pid.jsView file

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = dist/core/canvas/pid.js matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/canvas/pid.jsView on unpkg

dist/core/git.jsView file

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = dist/core/git.js matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/git.jsView on unpkg

dist/core/runtime/resume-root.jsView file

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = dist/core/runtime/resume-root.js matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/runtime/resume-root.jsView on unpkg

scripts/postinstall.mjsView file

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = scripts/postinstall.mjs matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/postinstall.mjsView on unpkg

dist/commands/chord.jsView file

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = dist/commands/chord.js matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/commands/chord.jsView on unpkg

dist/core/auto-update.jsView file

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = dist/core/auto-update.js matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/auto-update.jsView on unpkg

dist/core/command-plugins/compose.jsView file

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = dist/core/command-plugins/compose.js matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/command-plugins/compose.jsView on unpkg

dist/core/self-update.jsView file

•matchType = normalized_sha256 matchedPackage = @north-light/crouter@0.3.322 matchedPath = dist/core/self-update.js matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.322 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/core/self-update.jsView on unpkg

dist/commands/sys/setup-core.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @north-light/crouter@0.3.349 matchedIdentity = npm:QG5vcnRoLWxpZ2h0L2Nyb3V0ZXI:0.3.349 similarity = 0.358 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

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

dist/commands/sys/setup-core.jsView on unpkg

Lines 96-136javascript

96 child.stderr?.setEncoding('utf8');

97 child.stdout?.on('data', (chunk) => { output += chunk; });

98 child.stderr?.on('data', (chunk) => { output += chunk; });

99 child.on('error', (error) => resolve({ ok: false, output: `${output}${errorMessage(error)}\n` }));

100 child.on('close', (status) => resolve({ ok: status === 0, output }));

101 });

102}

103

104function firstLine(text) {

105 return text.split(/\r?\n/).find((line) => line.trim() !== '')?.trim();

106}

107

108/**

109 * The other half of what postinstall did: provision the pinned termrender

110 * venv, from the generation that was just selected so the code that renders

111 * is the code that provisioned. Best-effort, exactly as postinstall was — a

112 * renderer that will not provision (no `uv`, no network) is reported and the

113 * command still runs; every render path re-attempts on first use.

114 */

115async function provisionFirstRenderer(command, entryPath) {

116 try {

117 const mod = await import(pathToFileURL(join(dirname(entryPath), 'core', 'termrender', 'termrender.js')).href);

118 if (mod.isRendererReady()) return;

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/runtime-selector.mjsView on unpkg · L116

119 const end = beginStep(command, 'first run — provisioning the markdown renderer (one-time)');

120 if (end === null) {

121 // No bar to protect: the provisioner's own diagnostics stream as they

122 // always have, before the outcome line.

123 mod.ensureRenderer();

124 if (!mod.isRendererReady()) process.stderr.write(`${command}: renderer not provisioned; it will be retried on first render.\n`);

125 return;

126 }

127 // Behind a bar the diagnostics are captured so they cannot overwrite the

128 // bar line; the first of them is the cause the ✗ line names.

129 let diagnostics = '';

130 mod.ensureRenderer((message) => { diagnostics += message; });

131 const ready = mod.isRendererReady();

132 await end(ready ? '✓ markdown renderer' : `✗ markdown renderer — ${firstLine(diagnostics) ?? 'not provisioned; it will be retried on first render'}`);

133 if (diagnostics !== '') process.stderr.write(diagnostics.endsWith('\n') ? diagnostics : `${diagnostics}\n`);

134 } catch (error) {

135 process.stderr.write(`${command}: renderer provisioning skipped: ${errorMessage(error)}\n`);

136 }