diff --git a/src/application/AnalysisSettings.test.ts b/src/application/AnalysisSettings.test.ts
index d8214ffe84..114f3a684f 100644
--- a/src/application/AnalysisSettings.test.ts
+++ b/src/application/AnalysisSettings.test.ts
@@ -14,6 +14,7 @@ import { runWithAnalysisOperationSnapshot } from "../domain/analysisOperationSna
 import {
   runtimeAnalysisConfig,
   runtimeAsarHeaderAdmission,
+  runtimeCaptureDecoderHeap,
 } from "../config/runtimeAnalysisSettings.js";
 import { parseConfig } from "../config/parseConfig.js";
 
@@ -391,3 +392,75 @@ it("keeps the Hopper startup deadline source through a runtime override", () =>
     expect(live.hopperStartupTimeoutSource).toBe("runtime");
   });
 });
+
+it("retains invalid ASAR seeds across long-lived views and override resets", async () => {
+  const environment = {
+    REA_ASAR_MAX_HEADER_BYTES: "invalid",
+    REA_ASAR_MAX_LISTING_BYTES: "invalid",
+  };
+  const store = new AnalysisSettings(environment);
+  const admission = runtimeAsarHeaderAdmission(environment, store.read);
+  expect(() => admission.maximumBytes).toThrow("REA_ASAR_MAX_HEADER_BYTES");
+  expect(() => admission.listing?.source).toThrow("REA_ASAR_MAX_LISTING_BYTES");
+  store.update({
+    changes: [
+      { setting: "asar.max_header_bytes", action: "set", value: 8192 },
+      { setting: "asar.max_listing_bytes", action: "set", value: 4096 },
+    ],
+  });
+  let release!: () => void;
+  const barrier = new Promise<void>((resolve) => {
+    release = resolve;
+  });
+  const accepted = store.run(async () => {
+    await barrier;
+    expect(admission).toMatchObject({
+      maximumBytes: 8192,
+      source: "runtime",
+      listing: { maximumBytes: 4096, source: "runtime" },
+    });
+  });
+  store.update({
+    changes: [
+      { setting: "asar.max_header_bytes", action: "reset" },
+      { setting: "asar.max_listing_bytes", action: "reset" },
+    ],
+  });
+  release();
+  await accepted;
+  for (const read of [() => admission.maximumBytes, () => admission.source])
+    expect(read).toThrow("REA_ASAR_MAX_HEADER_BYTES");
+  for (const read of [
+    () => admission.listing?.maximumBytes,
+    () => admission.listing?.source,
+  ])
+    expect(read).toThrow("REA_ASAR_MAX_LISTING_BYTES");
+});
+
+it("retains an invalid capture heap seed through override and reset", () => {
+  const environment = { REA_CAPTURE_DECODER_OLD_GENERATION_MIB: "invalid" };
+  const store = new AnalysisSettings(environment);
+  const heap = runtimeCaptureDecoderHeap(environment, store.read);
+  expect(() => heap.oldGenerationMiB).toThrow(
+    "REA_CAPTURE_DECODER_OLD_GENERATION_MIB",
+  );
+  store.update({
+    changes: [
+      {
+        setting: "capture.decoder_old_generation_mib",
+        action: "set",
+        value: 64,
+      },
+    ],
+  });
+  expect(heap).toMatchObject({ oldGenerationMiB: 64, source: "runtime" });
+  store.update({
+    changes: [
+      { setting: "capture.decoder_old_generation_mib", action: "reset" },
+    ],
+  });
+  expect(() => heap.oldGenerationMiB).toThrow(
+    "REA_CAPTURE_DECODER_OLD_GENERATION_MIB",
+  );
+  expect(() => heap.source).toThrow("REA_CAPTURE_DECODER_OLD_GENERATION_MIB");
+});
diff --git a/src/config/runtimeAnalysisSettings.ts b/src/config/runtimeAnalysisSettings.ts
index 87d6782b15..1299acbf79 100644
--- a/src/config/runtimeAnalysisSettings.ts
+++ b/src/config/runtimeAnalysisSettings.ts
@@ -11,17 +11,13 @@ import {
   DEFAULT_GHIDRA_VALUE_FLOW_MAX_INPUTS_PER_OPERATION,
   DEFAULT_GHIDRA_VALUE_FLOW_MAX_EDGES,
 } from "../domain/analysisResourceLimits.js";
+import { parseAsarListingAdmission } from "./asarListingAdmission.js";
 import {
-  parseAsarListingAdmission,
-  DEFAULT_ASAR_LISTING_ADMISSION,
-} from "./asarListingAdmission.js";
-import {
-  DEFAULT_ASAR_HEADER_ADMISSION,
   parseAsarHeaderAdmission,
   type AsarHeaderAdmission,
 } from "./asarHeaderAdmission.js";
 import {
-  resolveCaptureDecoderHeap,
+  parseCaptureDecoderHeap,
   type CaptureDecoderHeap,
 } from "./captureDecoderHeap.js";
 import {
@@ -172,78 +168,70 @@ export const runtimeAsarHeaderAdmission = (
   const parsed = parseAsarHeaderAdmission(
     environment.REA_ASAR_MAX_HEADER_BYTES,
   );
-  const headerOverride =
-    read?.().overrides["asar.max_header_bytes"] ??
-    currentAnalysisSettingOverride("asar.max_header_bytes");
-  if (!parsed.ok && headerOverride === undefined) throw parsed.error;
   const listing = parseAsarListingAdmission(
     environment.REA_ASAR_MAX_LISTING_BYTES,
   );
-  const listingOverride =
-    read?.().overrides["asar.max_listing_bytes"] ??
-    currentAnalysisSettingOverride("asar.max_listing_bytes");
-  if (!listing.ok && listingOverride === undefined) throw listing.error;
-  const baseline = parsed.ok ? parsed.value : DEFAULT_ASAR_HEADER_ADMISSION;
-  const listingBaseline = listing.ok
-    ? listing.value
-    : DEFAULT_ASAR_LISTING_ADMISSION;
-  return read === undefined
-    ? {
-        maximumBytes: headerOverride ?? baseline.maximumBytes,
-        source: headerOverride === undefined ? baseline.source : "runtime",
-        listing: {
-          maximumBytes: listingOverride ?? listingBaseline.maximumBytes,
-          source:
-            listingOverride === undefined ? listingBaseline.source : "runtime",
-        },
-      }
-    : {
-        listing: {
-          get maximumBytes() {
-            return (
-              read().overrides["asar.max_listing_bytes"] ??
-              listingBaseline.maximumBytes
-            );
-          },
-          get source() {
-            return read().overrides["asar.max_listing_bytes"] === undefined
-              ? listingBaseline.source
-              : "runtime";
-          },
-        },
-        get maximumBytes() {
-          return (
-            read().overrides["asar.max_header_bytes"] ?? baseline.maximumBytes
-          );
-        },
-        get source() {
-          return read().overrides["asar.max_header_bytes"] === undefined
-            ? baseline.source
-            : "runtime";
-        },
-      };
+  const header = () => {
+    const override =
+      read?.().overrides["asar.max_header_bytes"] ??
+      currentAnalysisSettingOverride("asar.max_header_bytes");
+    if (override !== undefined)
+      return { maximumBytes: override, source: "runtime" as const };
+    if (!parsed.ok) throw parsed.error;
+    return parsed.value;
+  };
+  const expandedListing = () => {
+    const override =
+      read?.().overrides["asar.max_listing_bytes"] ??
+      currentAnalysisSettingOverride("asar.max_listing_bytes");
+    if (override !== undefined)
+      return { maximumBytes: override, source: "runtime" as const };
+    if (!listing.ok) throw listing.error;
+    return listing.value;
+  };
+  if (read === undefined) return { ...header(), listing: expandedListing() };
+  return {
+    get maximumBytes() {
+      return header().maximumBytes;
+    },
+    get source() {
+      return header().source;
+    },
+    listing: {
+      get maximumBytes() {
+        return expandedListing().maximumBytes;
+      },
+      get source() {
+        return expandedListing().source;
+      },
+    },
+  };
 };
 export const runtimeCaptureDecoderHeap = (
   environment: Readonly<Record<string, string | undefined>>,
   read?: AnalysisSettingsReader,
 ): CaptureDecoderHeap => {
-  const baseline = resolveCaptureDecoderHeap(environment);
-  return read === undefined
-    ? baseline
-    : {
-        get oldGenerationMiB() {
-          return (
-            read().overrides["capture.decoder_old_generation_mib"] ??
-            baseline.oldGenerationMiB
-          );
-        },
-        get source() {
-          return read().overrides["capture.decoder_old_generation_mib"] ===
-            undefined
-            ? baseline.source
-            : "runtime";
-        },
-      };
+  const parsed = parseCaptureDecoderHeap(
+    environment.REA_CAPTURE_DECODER_OLD_GENERATION_MIB,
+  );
+  const effective = () => {
+    const override =
+      read?.().overrides["capture.decoder_old_generation_mib"] ??
+      currentAnalysisSettingOverride("capture.decoder_old_generation_mib");
+    if (override !== undefined)
+      return { oldGenerationMiB: override, source: "runtime" as const };
+    if (!parsed.ok) throw parsed.error;
+    return parsed.value;
+  };
+  if (read === undefined) return effective();
+  return {
+    get oldGenerationMiB() {
+      return effective().oldGenerationMiB;
+    },
+    get source() {
+      return effective().source;
+    },
+  };
 };
 /**
  * Resolve the accepted operation's allowance on each call. An invalid launch
diff --git a/tests/acceptance/analysisSettingsMcp.test.ts b/tests/acceptance/analysisSettingsMcp.test.ts
index 16511db276..53f2be0b9e 100644
--- a/tests/acceptance/analysisSettingsMcp.test.ts
+++ b/tests/acceptance/analysisSettingsMcp.test.ts
@@ -428,3 +428,93 @@ it("lowers, restores and seeds the native matching allowance over MCP", async ()
     await invalid.client.close();
   }
 }, 30000);
+
+it("starts with invalid runtime seeds and recovers ASAR and capture work on the same connection", async () => {
+  const root = await createTestTempDirectory("rea-invalid-runtime-seeds-");
+  const archive = join(root, "small.asar");
+  const capture = join(root, "capture.har");
+  const payload = Buffer.from("answer");
+  await writeFile(
+    archive,
+    Buffer.concat([
+      asarHeaderBytes(
+        JSON.stringify({
+          files: { "answer.txt": { size: payload.length, offset: "0" } },
+        }),
+      ),
+      payload,
+    ]),
+  );
+  await writeFile(
+    capture,
+    JSON.stringify({
+      log: {
+        version: "1.2",
+        creator: { name: "test", version: "1" },
+        entries: [],
+      },
+    }),
+  );
+  const { client, call } = await connectLocalToolsMcp({
+    REA_ASAR_MAX_HEADER_BYTES: "invalid",
+    REA_ASAR_MAX_LISTING_BYTES: "invalid",
+    REA_CAPTURE_DECODER_OLD_GENERATION_MIB: "invalid",
+  });
+  try {
+    const changes = [
+      { setting: "asar.max_header_bytes", action: "set", value: 8192 },
+      { setting: "asar.max_listing_bytes", action: "set", value: 4096 },
+      {
+        setting: "capture.decoder_old_generation_mib",
+        action: "set",
+        value: 64,
+      },
+    ];
+    expect(
+      (await call("update_analysis_settings", { changes })).isError,
+    ).not.toBe(true);
+    expect((await call("open_binary", { path: archive })).isError).not.toBe(
+      true,
+    );
+    expect((await call("inspect_artifact", {})).isError).not.toBe(true);
+    const inspected = await call("inspect_web_network_capture", {
+      capture_path: capture,
+      format: "har",
+    });
+    expect(inspected.isError, JSON.stringify(inspected)).not.toBe(true);
+    expect(
+      (
+        await call("update_analysis_settings", {
+          changes: changes.map(({ setting }) => ({ setting, action: "reset" })),
+        })
+      ).isError,
+    ).not.toBe(true);
+    const refusedArchive = await call("inspect_artifact", {});
+    expect(refusedArchive.isError).toBe(true);
+    expect(JSON.stringify(refusedArchive)).toContain(
+      "REA_ASAR_MAX_HEADER_BYTES",
+    );
+    const refused = await call("inspect_web_network_capture", {
+      capture_path: capture,
+      format: "har",
+    });
+    expect(refused.isError).toBe(true);
+    expect(JSON.stringify(refused)).toContain(
+      "REA_CAPTURE_DECODER_OLD_GENERATION_MIB",
+    );
+    expect(
+      (await call("update_analysis_settings", { changes })).isError,
+    ).not.toBe(true);
+    expect((await call("inspect_artifact", {})).isError).not.toBe(true);
+    expect(
+      (
+        await call("inspect_web_network_capture", {
+          capture_path: capture,
+          format: "har",
+        })
+      ).isError,
+    ).not.toBe(true);
+  } finally {
+    await client.close();
+  }
+}, 30000);