diff --git a/scripts/lint_arch.ts b/scripts/lint_arch.ts
index e513efa..81e9e18 100644
--- a/scripts/lint_arch.ts
+++ b/scripts/lint_arch.ts
@@ -6,24 +6,37 @@ let hasErrors = false;
 
 async function checkFile(path: string) {
   const content = await Deno.readTextFile(path);
-  const lines = content.split('\n');
+  const lines = content.split("\n");
 
   lines.forEach((line, index) => {
     // 1. Block banned DOM APIs
-    if (line.includes("document.getElementById") ||
-        line.includes("document.querySelector") ||
-        line.includes("document.createElement")) {
-      console.error(`[Arch Lint] ❌ Banned DOM API used in ${path}:${index + 1}`);
+    if (
+      line.includes("document.getElementById") ||
+      line.includes("document.querySelector") ||
+      line.includes("document.createElement")
+    ) {
+      console.error(
+        `[Arch Lint] ❌ Banned DOM API used in ${path}:${index + 1}`,
+      );
       console.error(`    ${line.trim()}`);
-      console.error(`    -> Use Datastar reactive attributes or SSE morphs instead.`);
+      console.error(
+        `    -> Use Datastar reactive attributes or SSE morphs instead.`,
+      );
       hasErrors = true;
     }
 
     // 2. Block unescaped HTML in raw strings (basic heuristic for dangerouslySetInnerHTML)
-    if (line.includes("dangerouslySetInnerHTML") && !path.includes("error_fragments.tsx")) {
-      console.error(`[Arch Lint] ❌ dangerouslySetInnerHTML used in ${path}:${index + 1}`);
+    if (
+      line.includes("dangerouslySetInnerHTML") &&
+      !path.includes("error_fragments.tsx")
+    ) {
+      console.error(
+        `[Arch Lint] ❌ dangerouslySetInnerHTML used in ${path}:${index + 1}`,
+      );
       console.error(`    ${line.trim()}`);
-      console.error(`    -> Native JSX HTML escaping should be used unless in explicit core fragments.`);
+      console.error(
+        `    -> Native JSX HTML escaping should be used unless in explicit core fragments.`,
+      );
       hasErrors = true;
     }
   });
diff --git a/src/core/auth_guards.test.ts b/src/core/auth_guards.test.ts
index 78c5529..cee0f13 100644
--- a/src/core/auth_guards.test.ts
+++ b/src/core/auth_guards.test.ts
@@ -1,16 +1,16 @@
 import { assertEquals } from "jsr:@std/assert";
 import { determineClientType } from "./content_negotiation.ts";
-import { Context } from "jsr:@hono/hono@4";
+import type { Context } from "jsr:@hono/hono@4";
 
 Deno.test("determineClientType - correctly identifies datastar", () => {
-    const mockContext = {
-        req: {
-            header: (name: string) => {
-                if (name === "datastar-request") return "true";
-                return "";
-            }
-        }
-    } as unknown as Context;
+  const mockContext = {
+    req: {
+      header: (name: string) => {
+        if (name === "datastar-request") return "true";
+        return "";
+      },
+    },
+  } as unknown as Context;
 
-    assertEquals(determineClientType(mockContext), "datastar");
+  assertEquals(determineClientType(mockContext), "datastar");
 });
diff --git a/tasks/audits/2026-0827-audit-2-phase-1.md b/tasks/audits/2026-0827-audit-2-phase-1.md
new file mode 100644
index 0000000..01c4c24
--- /dev/null
+++ b/tasks/audits/2026-0827-audit-2-phase-1.md
@@ -0,0 +1,27 @@
+# Post-Implementation Audit: Phase 1 (Hypermedia Architecture)
+
+## 1. Test Suite Status
+- **`deno fmt`**: Passed (After 2 minor corrections in test files and scripts)
+- **`deno task lint`**: Passed (Fixed one verbatim-module-syntax warning in test imports)
+- **`deno task check`**: Passed
+- **`deno test -A --no-check`**: Passed (68 tests across 30 steps)
+
+## 2. Structural & Architectural Verification
+- **Directory Placement:** `src/core/` successfully established with all requested single-purpose modules (`db.ts`, `valkey.ts`, `spire_ffi.ts`, `auth_guards.ts`, `content_negotiation.ts`, `sse_adapter.ts`, `error_fragments.tsx`, `main.ts`).
+- **Legacy Quarantine:** Jules did NOT modify any files in the read-only `server/` or `ui/` directories.
+- **Dependency Invariants:** `sdk/` and `spire_ffi/` were kept isolated.
+- **Architectural Linting Hook:** `scripts/lint_arch.ts` successfully wired. It correctly rejects banned DOM APIs (`getElementById`, `querySelector`, `createElement`) and `dangerouslySetInnerHTML`.
+
+## 3. Code Hygiene & Rule Alignment
+- **Flat Call Chains:** Confirmed. Functions in `src/core/auth_guards.ts` (e.g., `rateLimitGuard`, `payloadCapGuard`) are shallow and self-contained.
+- **Datastar SSE Typing:** `sse_adapter.ts` correctly isolates raw protocol strings from route handlers.
+- **Error Handling:** `error_fragments.tsx` conforms to the invariant to return target-directed HTML toasts instead of JSON errors.
+
+## 4. Issues Addressed
+1. Jules forgot to run a final `deno fmt` on two newly created files. (Fixed)
+2. Jules included an import type issue caught by the standard linter. (Fixed via `deno lint --fix`)
+3. Jules eagerly moved the Task Plan to `tasks/complete/`. Because this is a 5-phase migration, I moved it to `tasks/in-progress/` to maintain continuity.
+
+## 5. Go / No-Go Decision
+**Decision: GO.** 🟢
+Phase 1 is strictly verified, cleanly isolated in `src/`, and the repository quality gates are 100% green. We are cleared to commence Phase 2.