feat: add ai-psychosis plugin to open marketplace

Meta-awareness tools for healthy AI interaction patterns.
Detects reinforcement loops, scope escalation, and compulsive patterns.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/ai-psychosis/tests/test-helper.mjs

@@ -0,0 +1,53 @@
+// Shared test utilities for hook script tests.
+// Uses node:child_process to pipe JSON stdin to hook scripts.
+
+import { execSync } from 'child_process';
+import { mkdtempSync, rmSync, mkdirSync, writeFileSync, readFileSync, existsSync } from 'fs';
+import { join } from 'path';
+import { tmpdir } from 'os';
+
+const SCRIPTS_DIR = join(import.meta.dirname, '..', 'hooks', 'scripts');
+
+export function runHook(scriptName, stdinJson, dataDir) {
+  const input = typeof stdinJson === 'string' ? stdinJson : JSON.stringify(stdinJson);
+  const env = { ...process.env, CLAUDE_PLUGIN_DATA: dataDir };
+  const stdout = execSync(`node ${join(SCRIPTS_DIR, scriptName)}`, {
+    input,
+    env,
+    encoding: 'utf8',
+    timeout: 5000,
+  });
+  try {
+    return JSON.parse(stdout.trim());
+  } catch {
+    return { raw: stdout.trim() };
+  }
+}
+
+export function setupTestDir() {
+  const dir = mkdtempSync(join(tmpdir(), 'ia-test-'));
+  mkdirSync(join(dir, 'state'), { recursive: true });
+  return dir;
+}
+
+export function cleanupTestDir(dir) {
+  rmSync(dir, { recursive: true, force: true });
+}
+
+export function createStateFile(dir, sid, state) {
+  writeFileSync(join(dir, 'state', `${sid}.json`), JSON.stringify(state, null, 2));
+}
+
+export function readState(dir, sid) {
+  const f = join(dir, 'state', `${sid}.json`);
+  if (!existsSync(f)) return null;
+  return JSON.parse(readFileSync(f, 'utf8'));
+}
+
+export function readJsonl(filePath) {
+  if (!existsSync(filePath)) return [];
+  return readFileSync(filePath, 'utf8')
+    .split('\n')
+    .filter(Boolean)
+    .map(line => JSON.parse(line));
+}