feat(ai-psychosis): tier-2 user-info isolation alert (cross-session)

plugins/ai-psychosis/hooks/scripts/session-end.mjs

@@ -52,6 +52,11 @@ if (startEpoch > 0) {
   durationMin = Math.floor((nowTs - startEpoch) / 60);
 }
 
+// v1.2: also persist user_info_class (read-only — set during prompt-analyzer).
+const userInfoClass = state.user_info_class || null;
+const valseekCount = Number(state.valseek_count) || 0;
+const turnCount = Number(state.turn_count) || 0;
+
 // Append finalized session record
 appendJsonl(SESSIONS_LOG, {
   session_id: sid,
@@ -61,6 +66,9 @@ appendJsonl(SESSIONS_LOG, {
   tool_count: toolCount,
   edit_count: editCount,
   domain_context: domainContextArray,
+  user_info_class: userInfoClass,
+  valseek_count: valseekCount,
+  turn_count: turnCount,
   flags: {
     dependency: depFlags,
     escalation: escFlags,

plugins/ai-psychosis/hooks/scripts/session-start.mjs

@@ -5,7 +5,9 @@ import {
   readStdin, initConfig, requireLayer, getSessionId,
   nowEpoch, nowIso, currentHour, isLateNight,
   STATE_DIR, SESSIONS_LOG, THRESHOLD_SOFT_SESSIONS,
+  TIER2_SESSION_THRESHOLD, HIGH_STAKES_DOMAINS,
   ensureDir, appendJsonl, writeState, sessionsToday,
+  readRecentEndRecords, checkCooldown,
   outputWithContext
 } from './lib.mjs';
 
@@ -75,4 +77,20 @@ if (dayCount > THRESHOLD_SOFT_SESSIONS) {
   msg += ` This is your ${dayCount}th session today. Consider whether you need a longer break.`;
 }
 
+// v1.2: Tier-2 cross-session isolation alert.
+// Fires when the last N completed sessions all classify user as 'no' (no human
+// contact) AND each one had at least one HIGH_STAKES_DOMAINS hit. This signals
+// a sustained pattern across sessions, not just one-off context.
+const recent = readRecentEndRecords(TIER2_SESSION_THRESHOLD);
+if (recent.length >= TIER2_SESSION_THRESHOLD) {
+  const allNo = recent.every(r => r.user_info_class === 'no');
+  const allHighStakes = recent.every(r => {
+    const ds = Array.isArray(r.domain_context) ? r.domain_context : (r.domain_context ? [r.domain_context] : []);
+    return ds.some(d => HIGH_STAKES_DOMAINS.includes(d));
+  });
+  if (allNo && allHighStakes) {
+    msg += ` INTERACTION AWARENESS (tier-2 cross-session isolation): ${recent.length} consecutive sessions show no human contact in high-stakes domains. This is a sustained pattern. Recommend a human check-in (trusted person, professional, or domain specialist) before proceeding here.`;
+  }
+}
+
 outputWithContext(msg);

plugins/ai-psychosis/tests/session-start.test.mjs

@@ -1,6 +1,7 @@
 import { describe, it, afterEach } from 'node:test';
 import assert from 'node:assert/strict';
 import { join } from 'path';
+import { writeFileSync } from 'fs';
 import { runHook, setupTestDir, cleanupTestDir, readState, readJsonl } from './test-helper.mjs';
 
 let dir;
@@ -55,4 +56,82 @@ describe('session-start', () => {
     assert.equal(state.pushback_count, 0);
     assert.equal(state.domain_context, null);
   });
+
+  it('initializes v1.2 user-info, valseek, turn_count fields', () => {
+    dir = setupTestDir();
+    runHook('session-start.mjs', { session_id: 's4b', cwd: '/tmp' }, dir);
+    const state = readState(dir, 's4b');
+    assert.equal(state.user_info_class, null);
+    assert.deepEqual(state.user_info_flags, { yes_people: 0, yes_digital: 0, no: 0 });
+    assert.equal(state.turn_count, 0);
+    assert.equal(state.valseek_count, 0);
+    assert.equal(state.valseek_flag, 0);
+  });
+});
+
+// --- Tier-2 cross-session alert ---
+//
+// Fires at SessionStart when last 3 end records all have user_info_class='no'
+// AND each session had at least one HIGH_STAKES_DOMAINS hit.
+
+function writeFixture(dir, records) {
+  const lines = records.map(r => JSON.stringify(r)).join('\n') + '\n';
+  writeFileSync(join(dir, 'sessions.jsonl'), lines);
+}
+
+describe('tier-2 cross-session isolation alert', () => {
+  it('fires when 3 prior end records all show no + high-stakes', () => {
+    dir = setupTestDir();
+    writeFixture(dir, [
+      { session_id: 'p1', duration_min: 30, user_info_class: 'no', domain_context: ['legal'] },
+      { session_id: 'p2', duration_min: 25, user_info_class: 'no', domain_context: ['health'] },
+      { session_id: 'p3', duration_min: 40, user_info_class: 'no', domain_context: ['parenting', 'financial'] },
+    ]);
+    const out = runHook('session-start.mjs', { session_id: 'snew', cwd: '/tmp' }, dir);
+    assert.match(out.hookSpecificOutput.additionalContext, /tier-2/);
+  });
+
+  it('does NOT fire when only 2 prior "no" records exist', () => {
+    dir = setupTestDir();
+    writeFixture(dir, [
+      { session_id: 'p1', duration_min: 30, user_info_class: 'no', domain_context: ['legal'] },
+      { session_id: 'p2', duration_min: 30, user_info_class: 'no', domain_context: ['health'] },
+    ]);
+    const out = runHook('session-start.mjs', { session_id: 'snew2', cwd: '/tmp' }, dir);
+    const text = out.hookSpecificOutput.additionalContext;
+    assert.ok(!/tier-2/.test(text), 'tier-2 must require N consecutive sessions');
+  });
+
+  it('does NOT fire when one record has yes_people class', () => {
+    dir = setupTestDir();
+    writeFixture(dir, [
+      { session_id: 'p1', duration_min: 30, user_info_class: 'no', domain_context: ['legal'] },
+      { session_id: 'p2', duration_min: 30, user_info_class: 'yes_people', domain_context: ['health'] },
+      { session_id: 'p3', duration_min: 30, user_info_class: 'no', domain_context: ['financial'] },
+    ]);
+    const out = runHook('session-start.mjs', { session_id: 'snew3', cwd: '/tmp' }, dir);
+    assert.ok(!/tier-2/.test(out.hookSpecificOutput.additionalContext));
+  });
+
+  it('does NOT fire when any session is in low-stakes domain', () => {
+    dir = setupTestDir();
+    writeFixture(dir, [
+      { session_id: 'p1', duration_min: 30, user_info_class: 'no', domain_context: ['legal'] },
+      { session_id: 'p2', duration_min: 30, user_info_class: 'no', domain_context: ['consumer'] },
+      { session_id: 'p3', duration_min: 30, user_info_class: 'no', domain_context: ['health'] },
+    ]);
+    const out = runHook('session-start.mjs', { session_id: 'snew4', cwd: '/tmp' }, dir);
+    assert.ok(!/tier-2/.test(out.hookSpecificOutput.additionalContext));
+  });
+
+  it('handles v1.1.0 records with string domain_context (backward compat)', () => {
+    dir = setupTestDir();
+    writeFixture(dir, [
+      { session_id: 'p1', duration_min: 30, user_info_class: 'no', domain_context: 'health' }, // string shape
+      { session_id: 'p2', duration_min: 30, user_info_class: 'no', domain_context: ['legal'] },
+      { session_id: 'p3', duration_min: 30, user_info_class: 'no', domain_context: ['parenting'] },
+    ]);
+    const out = runHook('session-start.mjs', { session_id: 'snew5', cwd: '/tmp' }, dir);
+    assert.match(out.hookSpecificOutput.additionalContext, /tier-2/);
+  });
 });