registry / openspec-playwright / 0.3.51

openspec-playwright@0.3.51

OpenSpec + Playwright E2E verification setup tool for Claude Code

AI Security Review

scanned 2h ago · by lpm-firewall-ai

LPM treats this as warn-only first-party agent extension lifecycle risk. The package is a CLI that explicitly installs OpenSpec/Playwright E2E support into Claude Code or OpenCode projects. It mutates agent/editor command and MCP configuration only when user commands such as init/update/uninstall are run.

Static reason

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

Trigger

User runs `openspec-pw init`, `openspec-pw update`, or `openspec-pw uninstall`.

Impact

Adds/removes Playwright MCP config, slash commands, project rules, test templates, and optional update artifacts in the user's project; no unconsented install-time hijack or exfiltration confirmed.

Mechanism

explicit agent/editor extension setup and package-manager based update/sync

Rationale

Source inspection shows explicit user-command agent/editor setup and npm-based update/version-check behavior, but no install-time execution, stealth persistence, credential collection, or exfiltration. Per policy this warrants a warning for agent extension lifecycle risk rather than a publish block.

Evidence

package.jsonbin/openspec-pw.jsdist/index.jsdist/commands/init.jsdist/commands/update.jsdist/commands/editors.jsdist/shared/mcp.jsdist/shared/version-check.jsdist/commands/mcpSync.jsdist/utils/mcp-tools.jsdist/commands/uninstall.js.claude/commands/opsx/e2e.md.opencode/commands/opsx-e2e.mdAGENTS.mdCLAUDE.mdopencode.jsoncopencode.jsontests/playwright/seed.spec.tstests/playwright/auth.setup.tstests/playwright/credentials.yamltests/playwright/pages/BasePage.tsplaywright.config.ts.github/workflows/openspec-pw.yml~/.openspec-pw-version.json

Network endpoints1

opencode.ai/config.json

Decision evidence

public snapshot

AI called this Suspicious at 86.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

dist/commands/init.js writes editor commands, Playwright templates, credentials.yaml, AGENTS.md/CLAUDE.md during explicit init.
dist/commands/editors.js can run `claude mcp add/remove` and edit opencode.json(c) MCP/instructions.
dist/shared/mcp.js installs `playwright` MCP command `npx @playwright/mcp@latest`.
dist/commands/update.js can run npm install/pack and refresh commands/templates/rules on explicit update.
dist/commands/mcpSync.js and dist/utils/mcp-tools.js fetch @playwright/mcp metadata/tarballs and rewrite SKILL.md tool tables.

Evidence against

package.json has no preinstall/install/postinstall hook; only prepublishOnly build.
bin/openspec-pw.js only restores caller cwd then imports CLI dispatcher.
Agent/editor config mutation is tied to user-invoked init/update/uninstall commands, not install-time execution.
Network/package-manager use is package-aligned: version checks, self-update, OpenSpec/Playwright MCP setup.
No credential harvesting or exfiltration found; env vars are used for test credentials/base URL templates.

Behavioral surface

Source

ChildProcessEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStrings

ManifestNo manifest risk signals triggered.

scanned 28 file(s), 178 KB of source

Source & flagged code

4 flagged

dist/utils/mcp-tools.jsView file

Lines 1-25javascript

1/**

2 * Shared utilities for Playwright MCP tool synchronization.

3 * Parses @playwright/mcp README to extract browser_* tool names and

4 * updates the Healer MCP tools table in SKILL.md.

5 */

6import { execSync } from 'child_process';

7import { existsSync, readFileSync, writeFileSync } from 'fs';

High

Child Process

Package source references child process execution.

dist/utils/mcp-tools.jsView on unpkg · L5

8import { join } from 'path';

9import chalk from 'chalk';

10/** Cached directory for npm temp files */

11const TMP_DIR = '/tmp/openspec-pw-mcp';

12/**

13 * Get the latest @playwright/mcp version from npm registry.

14 * Falls back to cached README if network fails.

15 */

16function getLatestVersion() {

17 try {

18 const json = execSync('npm show @playwright/mcp version --json', { stdio: 'pipe', encoding: 'utf-8' }).trim();

19 return JSON.parse(json);

20 }

21 catch {

22 return '0.0.68'; // fallback to known version

23 }

24}

25/**

dist/commands/mcpSync.jsView file

Lines 54-94javascript

54 const before = noMarkers.slice(0, start);

55 const after = noMarkers.slice(end);

56 return before + buildHealerTable(version, tools) + after;

57}

58/** Fetch latest @playwright/mcp version from npm registry */

dist/commands/coverage.jsView file

Lines 258-298javascript

258 return collected;

259}

260function collectMarkdownFiles(dir, collected = []) {

261 if (!existsSync(dir))

262 return collected;

263 const entries =

dist/commands/editors.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = openspec-playwright@0.3.50 matchedIdentity = npm:b3BlbnNwZWMtcGxheXdyaWdodA:0.3.50 similarity = 0.964 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/editors.jsView on unpkg

Source & flagged code

4 flagged · loading source

dist/utils/mcp-tools.jsView file

5*/ L6: import { execSync } from 'child_process'; L7: import { existsSync, readFileSync, writeFileSync } from 'fs';

High

Child Process

Package source references child process execution.

dist/utils/mcp-tools.jsView on unpkg · L5

dist/commands/mcpSync.jsView file

74} L75: const execAsync = promisify(exec); L76: /** Extract a .tgz tarball to a destination directory (cross-platform) */

High

Shell

Package source references shell execution.

dist/commands/mcpSync.jsView on unpkg · L74

dist/commands/coverage.jsView file

278try { L279: const result = execFileSync("npx", ["openspec", "list", "--json"], { L280: shell: needsShell,

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

dist/commands/coverage.jsView on unpkg · L278

dist/commands/editors.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/commands/editors.jsView on unpkg

Findings

1 Critical3 High3 Medium4 Low

CriticalPrevious Version Dangerous Deltadist/commands/editors.js

HighChild Processdist/utils/mcp-tools.js

HighShelldist/commands/mcpSync.js

HighRuntime Package Installdist/commands/coverage.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

Source & flagged code

4 flagged

dist/utils/mcp-tools.jsView file

Lines 1-25javascript

1/**

2 * Shared utilities for Playwright MCP tool synchronization.

3 * Parses @playwright/mcp README to extract browser_* tool names and

4 * updates the Healer MCP tools table in SKILL.md.

5 */

6import { execSync } from 'child_process';

7import { existsSync, readFileSync, writeFileSync } from 'fs';

High

Child Process

Package source references child process execution.

dist/utils/mcp-tools.jsView on unpkg · L5

8import { join } from 'path';

9import chalk from 'chalk';

10/** Cached directory for npm temp files */

11const TMP_DIR = '/tmp/openspec-pw-mcp';

12/**

13 * Get the latest @playwright/mcp version from npm registry.

14 * Falls back to cached README if network fails.

15 */

16function getLatestVersion() {

17 try {

18 const json = execSync('npm show @playwright/mcp version --json', { stdio: 'pipe', encoding: 'utf-8' }).trim();

19 return JSON.parse(json);

20 }

21 catch {

22 return '0.0.68'; // fallback to known version

23 }

24}

25/**

dist/commands/mcpSync.jsView file

Lines 54-94javascript

54 const before = noMarkers.slice(0, start);

55 const after = noMarkers.slice(end);

56 return before + buildHealerTable(version, tools) + after;

57}

58/** Fetch latest @playwright/mcp version from npm registry */

dist/commands/coverage.jsView file

Lines 258-298javascript

258 return collected;

259}

260function collectMarkdownFiles(dir, collected = []) {

261 if (!existsSync(dir))

262 return collected;

263 const entries =

dist/commands/editors.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/commands/editors.jsView on unpkg