@trypattern/sdk@0.1.8

AI Security Review

scanned 5d ago · by lpm-firewall-ai

Source inspection found no malicious behavior. The flagged configuration references do not modify agent settings, and the CLI’s publishing and pull operations are user-invoked product functions.

Static reason

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

Trigger

The CLI runs when a user invokes it; no package install hook is declared.

Impact

No confirmed unauthorized credential transfer, agent configuration mutation, or remote code execution was established.

Mechanism

The inspected code formats project paths, handles shortcuts, authenticates to the configured dashboard, and pulls site source into a project folder.

AI rationale

Source inspection found no malicious behavior. The flagged configuration references do not modify agent settings, and the CLI’s publishing and pull operations are user-invoked product functions.

Decision evidence

public snapshot

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

Evidence for AI clean decision

The manifest exposes a user-run CLI and library entrypoints; it contains no install lifecycle hook.
The CLI’s .claude reference is part of a formatting path list, and publishing excludes .claude when checking for an empty target folder.
The shortcut hook translates keyboard events into calls to its supplied handler and removes the listener on cleanup.
The server auth client sends its secret to the fixed auth.trypattern.ai service.
The CLI attaches a saved cookie to requests for its configured dashboard; login setup waits for browser approval.
The pull command fetches a site’s source and writes validated paths into the requested project folder.

Evidence against

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsUrlStrings

Manifest

Source & flagged code

9 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 = {

•matchType = previous_version_dangerous_delta matchedPackage = @trypattern/sdk@0.1.7 matchedIdentity = npm:QHRyeXBhdHRlcm4vc2Rr:0.1.7 similarity = 0.983 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/publishing.jsView on unpkg

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/app.js#virtual:normalized:round1View file

235current directory to the nearest project launcher (an executable ./app containing the line L236: ${LAUNCHER_MARKER_LINE}) and runs it, so each project"s CLI lives in its repo and the shim\nnever needs updating. Replaces older Jig or starter-kit shims; refuses to overwrite an\n... L237: };

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/cli/app.js#virtual:normalized:round1View on unpkg · L235

235Trigger-reachable command-output exfiltration chain: manifest.bin -> dist/cli/app.js L235: current directory to the nearest project launcher (an executable ./app containing the line L236: ${LAUNCHER_MARKER_LINE}) and runs it, so each project"s CLI lives in its repo and the shim\nnever needs updating. Replaces older Jig or starter-kit shims; refuses to overwrite an\n... L237: };

High

Trigger Reachable Command Output Exfiltration

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

dist/cli/app.js#virtual:normalized:round1View on unpkg · L235

•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/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.

Source & flagged code

9 flagged · loading source

dist/cli/publishing.jsView 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/publishing.jsView on unpkg

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:

Findings

3 Critical5 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/publishing.js

HighChild Processdist/cli/publishing.js

HighSame File Env Network Executiondist/cli/app.js#virtual:normalized:round1

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

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

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

MediumDynamic Requirepresets/lintPlugin.js

MediumNetwork

Affected versions and remediation

This report applies to @trypattern/sdk@0.1.8.

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

Review the evidence and your use of @trypattern/sdk@0.1.8 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 08:23:09.030Z (UTC).

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