fix(save-ai-memory): TSC strict-mode errors in process-extract.ts

docs/hygiene-history/ticks/2026/05/15/0213Z.md

@@ -0,0 +1,30 @@
+# Tick 0213Z — PR #3349 opened + auto-merge armed; TSC strict-mode fix landed on save-ai-memory canonical TS impl
+
+## Headline
+
+- PR [#3349](https://github.com/Lucent-Financial-Group/Zeta/pull/3349) OPENED + auto-merge armed. Resolves 6 `tsc` strict-mode errors in `tools/save-ai-memory/process-extract.ts` (the canonical TS impl that landed in [#3337](https://github.com/Lucent-Financial-Group/Zeta/pull/3337)). Currently `BLOCKED gate / 0 failed required / autoMerge armed / wait-ci`.
+- Fix shape: `nextArg(name)` helper guards `string | undefined` from `argv[++i]`; `name.charAt(0)` replaces `name[0]` for `noUncheckedIndexedAccess`-clean access. One file, 17/8 line delta.
+- Real footgun caught by strict mode: pre-fix, `bun process-extract.ts --ai-name` (missing value) would silently swallow the next flag as the value. Post-fix exits 1 with `Missing value for --ai-name`.
+
+## What I found mid-tick (substrate-honest disclosure)
+
+- Stale `.git/rebase-merge/` directory pointing at `lior/decompose-b0139-4` (May 14 20:36 mtime, ~1.5hrs old) sitting in the primary worktree's `.git/`. My HEAD was correctly on `fix/save-ai-memory-tsc-errors-otto-cli-2026-05-15`; the orphaned rebase state is orthogonal to my branch ref. Did NOT touch it per [`.claude/rules/claim-acquire-before-worktree-work.md`](../../../../../../.claude/rules/claim-acquire-before-worktree-work.md) worktree force-remove guard (analogous principle for peer-agent rebase state).
+- Inline branch guard (`test "$(git branch --show-current)" = "<expected>" && git commit`) used per [`.claude/rules/zeta-expected-branch.md`](../../../../../../.claude/rules/zeta-expected-branch.md) field-test caveat — the env-var hook is defense-in-depth, not primary.
+- Explicit `--head` passed to `gh pr create` per the same rule's companion defense.
+
+## Δ since 0051Z (last shard)
+
+| What | Before | After |
+|---|---|---|
+| Main HEAD | `e692e90` (#3330) | `343aef4` (#3338) — 5 PRs merged in the gap |
+| Otto-CLI open PRs | 1 (#3332) | 1 (#3349) |
+| `tsc --noEmit` clean? | NO (6 errors in save-ai-memory) | YES |
+| save-ai-memory CLI arg-handling | silent on missing value | `Missing value for <flag>` + exit 1 |
+
+## Cron sentinel
+
+`a2c54a1c` armed at session start (CronList was empty — fresh-session catch-43-defence fired).
+
+## Next
+
+Cron-driven. Next tick verifies #3349 merge state. If still BLOCKED, investigate threads. If MERGED, scan ready-to-grind backlog rows (3 work-assignment envelopes from 23:58Z still pending: B-0441, B-0170, B-0503; some may have expired at 01:58Z — check before claiming).

tools/save-ai-memory/process-extract.ts

@@ -65,6 +65,15 @@ import { execFileSync } from "node:child_process";
 
 type Platform = "grok" | "chatgpt" | "claudeai" | "gemini" | "deepseek" | "unknown";
 
+const ALLOWED_PLATFORMS: ReadonlySet<string> = new Set([
+  "grok",
+  "chatgpt",
+  "claudeai",
+  "gemini",
+  "deepseek",
+  "unknown",
+]);
+
 interface Args {
   aiName: string;
   platform: Platform;
@@ -83,26 +92,47 @@ function parseArgs(argv: string[]): Args {
     commit: false,
     dryRun: false,
   };
-  for (let i = 0; i < argv.length; i++) {
+  let i = 0;
+  function nextArg(name: string): string {
+    const v = argv[++i];
+    if (v === undefined) {
+      console.error(`Missing value for ${name}`);
+      process.exit(1);
+    }
+    if (v.startsWith("--")) {
+      console.error(`Missing value for ${name} (next token "${v}" looks like a flag)`);
+      process.exit(1);
+    }
+    return v;
+  }
+  for (; i < argv.length; i++) {
     const a = argv[i];
     switch (a) {
       case "--ai-name":
-        args.aiName = argv[++i];
+        args.aiName = nextArg("--ai-name");
         break;
-      case "--platform":
-        args.platform = argv[++i] as Platform;
+      case "--platform": {
+        const raw = nextArg("--platform");
+        if (!ALLOWED_PLATFORMS.has(raw)) {
+          console.error(
+            `Invalid --platform "${raw}". Allowed: ${[...ALLOWED_PLATFORMS].join(", ")}`,
+          );
+          process.exit(1);
+        }
+        args.platform = raw as Platform;
         break;
+      }
       case "--topic":
-        args.topic = argv[++i];
+        args.topic = nextArg("--topic");
         break;
       case "--conversation-id":
-        args.conversationId = argv[++i];
+        args.conversationId = nextArg("--conversation-id");
         break;
       case "--input":
-        args.input = argv[++i];
+        args.input = nextArg("--input");
         break;
       case "--output":
-        args.output = argv[++i];
+        args.output = nextArg("--output");
         break;
       case "--scrub-emails":
         args.scrubEmails = true;
@@ -245,7 +275,7 @@ function generateOutputPath(args: Args, isoDate: string): string {
 
 function capitalizeName(name: string): string {
   if (name.length === 0) return name;
-  return name[0].toUpperCase() + name.slice(1);
+  return name.charAt(0).toUpperCase() + name.slice(1);
 }
 
 function buildArchive(