fix(continue): run the arg-parser, find the master prompt at the repo root, and let the consistency check read the state file

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/validators/next-session-prompt-validator.test.mjs

@@ -8,7 +8,8 @@ import assert from 'node:assert/strict';
 import { mkdtempSync, rmSync, writeFileSync } from 'node:fs';
 import { tmpdir } from 'node:os';
 import { join } from 'node:path';
-import { execFileSync } from 'node:child_process';
+import { execFileSync, spawnSync } from 'node:child_process';
+import { fileURLToPath } from 'node:url';
 
 import {
   validateNextSessionPromptContent,
@@ -133,3 +134,73 @@ test('CLI shim — consistency mode flags producer mismatch', () => {
     rmSync(dir, { recursive: true, force: true });
   }
 });
+
+// --- #102: the consistency call reads the state file -----------------------
+// The CLI counted the --state-file value as a third positional and exited 2,
+// so the state-anchored staleness check never ran from the command line; and
+// an invalid B still gave valid: true. These tests use spawnSync so they reach
+// an assertion on exit 2 too.
+
+const CLI = fileURLToPath(new URL('../../lib/validators/next-session-prompt-validator.mjs', import.meta.url));
+
+function runCli(args) {
+  return spawnSync(process.execPath, [CLI, ...args], { encoding: 'utf-8' });
+}
+
+/** A stale master (older than the state's updated_at) and a fresh sibling by another producer. */
+function stalePair(dir) {
+  const a = join(dir, 'a.md');
+  const b = join(dir, 'b.md');
+  const s = join(dir, '.session-state.local.json');
+  writeFileSync(a, frontmatter('graceful-handoff', '2026-05-03T10:00:00.000Z'));
+  writeFileSync(b, frontmatter('trekexecute', '2026-05-04T16:05:00.000Z'));
+  writeFileSync(s, JSON.stringify({ schema_version: 1, updated_at: '2026-05-04T16:00:00.000Z' }));
+  return { a, b, s };
+}
+
+test('[#102] CLI --json --consistency a b --state-file s: the state-anchored case exits 0 with a STALE_IGNORED warning', () => {
+  const dir = mkdtempSync(join(tmpdir(), 'nspv-cli-'));
+  try {
+    const { a, b, s } = stalePair(dir);
+    const r = runCli(['--json', '--consistency', a, b, '--state-file', s]);
+    assert.equal(r.status, 0, `exit ${r.status}: ${r.stdout}${r.stderr}`);
+    const parsed = JSON.parse(r.stdout);
+    assert.equal(parsed.valid, true, JSON.stringify(parsed.errors));
+    assert.ok(parsed.warnings.find((w) => w.code === 'NEXT_SESSION_PROMPT_STALE_IGNORED'),
+      'the stale candidate was not ignored');
+    assert.equal(parsed.errors.find((e) => e.code === 'NEXT_SESSION_PROMPT_PRODUCER_MISMATCH'), undefined);
+  } finally {
+    rmSync(dir, { recursive: true, force: true });
+  }
+});
+
+test('control: the same pair without --state-file is a producer mismatch (exit 1)', () => {
+  const dir = mkdtempSync(join(tmpdir(), 'nspv-cli-'));
+  try {
+    const { a, b } = stalePair(dir);
+    const r = runCli(['--json', '--consistency', a, b]);
+    assert.equal(r.status, 1, `exit ${r.status}: ${r.stdout}${r.stderr}`);
+    const parsed = JSON.parse(r.stdout);
+    assert.equal(parsed.valid, false);
+    assert.ok(parsed.errors.find((e) => e.code === 'NEXT_SESSION_PROMPT_PRODUCER_MISMATCH'));
+  } finally {
+    rmSync(dir, { recursive: true, force: true });
+  }
+});
+
+test('[#102] sibling: rb.valid counts: an invalid B makes the consistency result invalid (exit 1)', () => {
+  const dir = mkdtempSync(join(tmpdir(), 'nspv-cli-'));
+  try {
+    const a = join(dir, 'a.md');
+    const b = join(dir, 'b.md');
+    writeFileSync(a, frontmatter('trekexecute', '2026-05-04T16:00:00.000Z'));
+    writeFileSync(b, '---\nproduced_by: trekexecute\n---\n\n# B, no produced_at\n');
+    const r = runCli(['--json', '--consistency', a, b]);
+    assert.equal(r.status, 1, `an invalid B still passed: exit ${r.status}: ${r.stdout}${r.stderr}`);
+    const parsed = JSON.parse(r.stdout);
+    assert.equal(parsed.valid, false);
+    assert.ok(parsed.errors.find((e) => e.code === 'NEXT_SESSION_PROMPT_MISSING_FIELD' && /produced_at/.test(e.message)));
+  } finally {
+    rmSync(dir, { recursive: true, force: true });
+  }
+});