@trypattern/sdk@0.1.11

AI Security Review

scanned 5d ago · by lpm-firewall-ai

The scanner's remote execution and agent configuration signals map to explicit CLI product workflows and benign `.claude` handling. The package has no install lifecycle hook, and the inspected source shows no concrete malicious behavior.

Static reason

High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source

Trigger

A user invokes `app pull <name>`.

Impact

The requested project is installed locally; the inspected source does not show this behavior running automatically during package installation or import.

Mechanism

The command retrieves the requested app through the dashboard flow, writes its source into the target folder, then runs dependency installation and app setup.

AI rationale

Decision evidence

public snapshot

AI called this Clean at 94.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

package.json exposes a CLI and lists development and build scripts, with no preinstall, install, or postinstall hook.
The `.claude` references in the flagged locations are formatting scope and empty-folder handling; they do not show agent configuration writes.
Source download and dependency installation run through the explicit `app pull` command, which uses the authenticated dashboard flow.
The CLI stores credentials privately and sends its saved cookie to the selected dashboard; login opens a browser flow that waits for approval.
The cited runtime files cover UI, state, theme, server authentication, database, media, pagination, and lint-token helpers; none establishes a malicious action.

Evidence against

The CLI can download project source and run `pnpm install` and the downloaded app's setup command when a user invokes `app pull`.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork

Source & flagged code

8 flagged

dist/cli/publishing.jsView file

Lines 1-21javascript

1import { spawnSync } from 'node:child_process';

2import { chmodSync, existsSync, mkdirSync, readdirSync, readFileSync, rmSync, statSync, writeFileSync } from 'node:fs';

High

Child Process

Package source references child process execution.

dist/cli/publishing.jsView on unpkg · L1

3import { homedir } from 'node:os';

4import { basename, dirname, extname, join, matchesGlob, relative } from 'node:path';

5import { z } from 'zod';

6import { DASHBOARD_URL, UPLOAD, appSummary, isPrivatePath, loginPoll, loginStarted, nameProblem, publishMessage, publishSummary, setupCodeExchanged, sourcePathProblem } from "../publishWire.js";

7import { appInfo } from "../appTitle.js";

8import { SESSION_COOKIE } from "../auth/user.js";

9import { PROJECT_FILE, readProjectFile } from "../vite/projectFile.js";

10const CONFIG_DIR = join(homedir(), '.config', 'pattern');

11const CREDENTIALS_FILE = join(CONFIG_DIR, 'credentials.json');

12const PENDING_FILE = join(CONFIG_DIR, 'pending-login.json');

13const LOGIN_MINUTES = 10;

14const POLL_MS = 2000;

15const LOGIN_WAIT_MS = 100_000;

16const PUBLISH_WAIT_MS = 300_000;

17const LAUNCHER = 'app';

18const STARTER_WORKSPACE = 'pnpm-workspace.yaml';

19const STARTER_BUILD_SETTINGS = 'allowBuilds:\n esbuild: false\n workerd: false\n';

20const IGNORED_IN_EMPTY_FOLDER = new Set(['.DS_Store', '.claude']);

21const MIME_TYPES = {

presets/lintPlugin.jsView file

Lines 1-8javascript

1import { existsSync } from 'node:fs'

3const source = new URL('../src/rules/lintPlugin.ts', import.meta.url)

4const built

dist/cli/publishing.js#virtual:normalized:round1View file

1import { spawnSync } from "node:child_process"; L2: import { chmodSync, existsSync, mkdirSync, readdirSync, readFileSync, rmSync, statSync, writeFileSync } from "node:fs"; ... L5: import { z } from "zod"; L6: import { DASHBOARD_URL, UPLOAD, appSummary, isPrivatePath, loginPoll, loginStarted, nameProblem, publishMessage, publishSummary, setupCodeExchanged, sourcePathProblem } from "../pu... L7: import { appInfo } from "../appTitle.js"; ... L9: import { PROJECT_FILE, readProjectFile } from "../vite/projectFile.js"; L10: const CONFIG_DIR = join(homedir(), ".config", "pattern"); L11: const CREDENTIALS_FILE = join(CONFIG_DIR, "credentials.json"); ... L51: function dashboard() { L52: return (process.env.PATTERN_DASHBOARD_URL ?? DASHBOARD_URL).replace(/\/$/, ""); L53: } ... L63: try {

Critical

Download Execute

Source downloads or fetches remote code and executes it.

dist/cli/publishing.js#virtual:normalized:round1View on unpkg · L1

1Trigger-reachable chain: manifest.bin -> dist/cli/app.js -> dist/cli/publishing.js L1: import { spawnSync } from "node:child_process"; L2: import { chmodSync, existsSync, mkdirSync, readdirSync, readFileSync, rmSync, statSync, writeFileSync } from "node:fs"; ... L5: import { z } from "zod"; L6: import { DASHBOARD_URL, UPLOAD, appSummary, isPrivatePath, loginPoll, loginStarted, nameProblem, publishMessage, publishSummary, setupCodeExchanged, sourcePathProblem } from "../pu... L7: import { appInfo } from "../appTitle.js"; ... L9: import { PROJECT_FILE, readProjectFile } from "../vite/projectFile.js"; L10: const CONFIG_DIR = join(homedir(), ".config", "pattern"); L11: const CREDENTIALS_FILE = join(CONFIG_DIR, "credentials.json"); ... L51: function dashboard() { L52: return (process.env.PATTER

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

dist/cli/app.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 3

High

Semantic Analysis Limited

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

dist/cli/app.js#virtual:normalized:round1View on unpkg

dist/cli/app.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @trypattern/sdk@0.1.9 matchedIdentity = npm:QHRyeXBhdHRlcm4vc2Rr:0.1.9 similarity = 0.750 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/cli/app.jsView on unpkg

Source & flagged code

8 flagged · loading source

dist/cli/publishing.jsView file

1import { spawnSync } from 'node:child_process'; L2: import { chmodSync, existsSync, mkdirSync, readdirSync, readFileSync, rmSync, statSync, writeFileSync } from 'node:fs';

High

Child Process

Package source references child process execution.

dist/cli/publishing.jsView on unpkg · L1

presets/lintPlugin.jsView file

4const built = new URL('../dist/rules/lintPlugin.js', import.meta.url) L5: const plugin = await import(existsSync(source) ? source.href : built.href) L6:

Medium

Dynamic Require

Package source references dynamic require/import behavior.

presets/lintPlugin.jsView on unpkg · L4

dist/cli/publishing.js#virtual:normalized:round1View file

Findings

3 Critical4 High4 Medium5 Low

CriticalDownload Executedist/cli/publishing.js#virtual:normalized:round1

CriticalTrigger Reachable Dangerous Capabilitydist/cli/publishing.js#virtual:normalized:round1

CriticalPrevious Version Dangerous Deltadist/cli/app.js

HighChild Processdist/cli/publishing.js

HighCommand Output Exfiltrationdist/cli/publishing.js#virtual:normalized:round1

HighTrigger Reachable Command Output Exfiltrationdist/cli/publishing.js#virtual:normalized:round1

HighSemantic Analysis Limiteddist/cli/app.js#virtual:normalized:round1

MediumDynamic Requirepresets/lintPlugin.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

Affected versions and remediation

This report applies to @trypattern/sdk@0.1.11.

See all versions of @trypattern/sdk for other recorded verdicts.

Review the evidence and your use of @trypattern/sdk@0.1.11 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: 2026-10-18 11:19:04.816Z (UTC).

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