diff --git a/tests/baseline/phase1.json b/tests/baseline/phase1.json
index b1aae73d..233b483e 100644
--- a/tests/baseline/phase1.json
+++ b/tests/baseline/phase1.json
@@ -11269,7 +11269,6 @@
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/formats/sample.tga",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/formats/sample.tiff",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/formats/sample.webp",
-    "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/gen-manifest.mjs",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/hostile/bomb-50000x50000.png",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/hostile/garbage.jpg",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/hostile/garbage.pdf",
@@ -24413,7 +24412,6 @@
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/formats/sample.tga",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/formats/sample.tiff",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/formats/sample.webp",
-    "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/gen-manifest.mjs",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/hostile/bomb-50000x50000.png",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/hostile/garbage.jpg",
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/fixtures/fixture-budget.test.ts > fixture size budget within budget: /Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/fixtures/hostile/garbage.pdf",
@@ -26506,7 +26504,7 @@
     "/Users/sidd/Desktop/Personal/Projects/SnapOtter/.claude/worktrees/test+suite-overhaul-and-real-fixtures/tests/unit/web/zustand-stores.test.ts > useThemeStore system theme resolves to dark when matchMedia prefers dark"
   ],
   "counts": {
-    "total": 13360,
-    "passed": 13142
+    "total": 13359,
+    "passed": 13141
   }
 }
\ No newline at end of file
diff --git a/tests/fixtures/index.ts b/tests/fixtures/index.ts
index c4282d3d..1a140322 100644
--- a/tests/fixtures/index.ts
+++ b/tests/fixtures/index.ts
@@ -113,11 +113,11 @@ export function readFixture(path: string): Buffer {
 
 // Recursively collect every string-valued leaf, EXCLUDING `*hostileEmpty*` groups
 // (intentionally zero-byte) and function leaves (the `formats`/`tiny` accessors).
-export function flattenFixturePaths(node: unknown, key = ""): string[] {
+export function flattenFixturePaths(node: unknown): string[] {
   if (typeof node === "string") return [node];
   if (node && typeof node === "object") {
     return Object.entries(node).flatMap(([k, v]) =>
-      k.toLowerCase().includes("hostileempty") ? [] : flattenFixturePaths(v, k),
+      k.toLowerCase().includes("hostileempty") ? [] : flattenFixturePaths(v),
     );
   }
   return []; // functions (accessors) and other non-leaves
diff --git a/tests/unit/fixtures/fixture-budget.test.ts b/tests/unit/fixtures/fixture-budget.test.ts
index 45f17196..51d1e14a 100644
--- a/tests/unit/fixtures/fixture-budget.test.ts
+++ b/tests/unit/fixtures/fixture-budget.test.ts
@@ -25,7 +25,8 @@ function walk(dir: string): string[] {
       e.name === "index.ts" ||
       e.name === ".gitkeep" ||
       e.name.endsWith(".md") ||
-      e.name.endsWith(".json")
+      e.name.endsWith(".json") ||
+      e.name.endsWith(".mjs")
     )
       return [];
     return [full];