pincushion-mcp@1.11.28
Visual feedback as agent work packets. Stakeholders drop pins on your live app; your AI coding agent reads each pin (selector, screenshot, DOM, thread, acceptance criteria) via MCP and ships the fix.
AI Security Review
scanned 1mo ago · by lpm-firewall-aiSource confirms explicit-user-command agent configuration mutation, which the supplied policy assigns a warning. Consent gates and project-local safeguards provide no basis for classifying this path as malicious install-hook abuse or covert takeover.
Static reason
High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source
Trigger
Run pincushion-mcp setup, select an editor, and approve setup and critique operations.
Impact
Changes the selected project's agent configuration and available skills under normal editor permissions.
Mechanism
Setup writes a project-scoped Pincushion MCP connection and creates editor skill files after consent and collision checks. Saved consent supports continuation of the same critique run; the inspected path does not establish automatic plugin updates.
AI rationale
Source confirms explicit-user-command agent configuration mutation, which the supplied policy assigns a warning. Consent gates and project-local safeguards provide no basis for classifying this path as malicious install-hook abuse or covert takeover.
Evidence
server.jssetup.mjslib/setup-core.jslib/client-critique-install.jslib/claude-critique-install.jslib/setup-critique.js.mcp.json.codex/config.toml.cursor/mcp.json.vscode/mcp.jsonSKILL.mdagents/openai.yaml
Decision evidence
public snapshotAI called this Suspicious at 94.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- server.js activates editor setup through the explicit setup command.
- setup.mjs requires approval before installing a project runtime and connecting the selected editor.
- lib/setup-core.js writes a Pincushion MCP entry into project editor configuration.
- lib/client-critique-install.js installs project agent skills using exclusive file creation.
- Claude skill installation requires explicit consent; setup calls the client installer after approval.
- lib/setup-critique.js saves project-specific consent and runtime identity for continuation.
Evidence against
- package.json has no automatic install lifecycle hooks or runtime self-dependency.
- Setup preserves global configuration and blocks unsafe paths, conflicting skills, and unsupported editor policies.
- Runtime dependency installation disables npm lifecycle scripts; no concrete malicious behavior was established.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystem
Source & flagged code
12 flaggedmobile-wall.mjsView file
17// injectable so both modes are testable without a simulator.
L18: import { execFileSync } from 'node:child_process';
L19: import {
High
mobile-wall.mjs#virtual:normalized:round1View file
121function publicUrlFrom(text) {
L122: const m = /(https?:\/\/[^\s"'<>]+)/.exec(String(text || ''));\n return m ? m[1].replace(/[),.;]+$/, '') : '';\n}\n\nasync function fetchCloudAnnotations(ctx, { baseUrl, key, proje...
L123: }
Critical
Same File Env Network Execution
A single source file combines environment access, network access, and code or shell execution with blocking evidence.
mobile-wall.mjs#virtual:normalized:round1View on unpkg · L12117// injectable so both modes are testable without a simulator.
L18: import { execFileSync } from "node:child_process";
L19: import {
...
L32: const DEFAULT_OUT = "crit-wall";
L33: const DEFAULT_FUNCTION_BASE = "https://dpsqzszdviltqvethxbr.supabase.co/functions/v1";
L34:
...
L78: function isSignedIn() {
L79: if (process.env.PINCUSHION_LICENSE_KEY) return true;
L80: try { return !!readFileSync(join(homedir(), ".pincushion", "license-key"), "utf8").trim(); } catch { return false; }
L81: }
...
L97: const firstLine = (e) => String(e.message || e).split("\n")[0];
L98: const execErrText = (e) => [e?.stderr, e?.stdout, e?.message].filter(Boolean).join("\n");
Findings
5 Critical8 High4 Medium6 Low
CriticalSame File Env Network Executionmobile-wall.mjs#virtual:normalized:round1
CriticalCredential Exfiltrationserver.js
CriticalDownload Executemobile-wall.mjs#virtual:normalized:round1
CriticalTrigger Reachable Dangerous Capabilityserver.js
CriticalPrevious Version Dangerous Deltalib/setup-critique.js
HighChild Processmobile-wall.mjs
HighShell
HighCommand Output Exfiltrationmobile-wall.mjs#virtual:normalized:round1
HighSandbox Evasion Gated Capabilitylib/setup-runtime.js
HighCopied Package Dependency Bridgelib/posthog.js
HighTrigger Reachable Credential Exfiltrationserver.js
Affected versions and remediation
This report applies to pincushion-mcp@1.11.28.
See all versions of pincushion-mcp for other recorded verdicts.
- Review the evidence and your use of pincushion-mcp@1.11.28 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.