diff --git a/src/domain/firmware/firmwareAnalysis.ts b/src/domain/firmware/firmwareAnalysis.ts
index 91f01f7243..9a1434fda5 100644
--- a/src/domain/firmware/firmwareAnalysis.ts
+++ b/src/domain/firmware/firmwareAnalysis.ts
@@ -13,6 +13,8 @@ export const MAX_FIRMWARE_TIMEOUT_MS = 2_147_483_647;
 export const MAX_FIRMWARE_STAGING_BYTES = 512 * 1024 * 1024;
 /** Largest staging entry budget the schema accepts. */
 export const MAX_FIRMWARE_STAGING_ENTRIES = 100_000;
+/** Largest extraction depth the input contract accepts. */
+export const MAX_FIRMWARE_EXTRACTION_DEPTH = 10;
 const timeout = z.number().int().min(1).max(MAX_FIRMWARE_TIMEOUT_MS);
 const target = {
   path: absoluteLocalPathStringSchema.describe(
@@ -40,7 +42,7 @@ export const firmwareInputSchemas = {
       .number()
       .int()
       .min(1)
-      .max(10)
+      .max(MAX_FIRMWARE_EXTRACTION_DEPTH)
       .default(3)
       .describe("Extraction depth; reaching it yields partial analysis"),
     max_output_bytes: z
diff --git a/src/firmware/FirmwarePublication.ts b/src/firmware/FirmwarePublication.ts
index f6d9f0f81f..86e26e26d7 100644
--- a/src/firmware/FirmwarePublication.ts
+++ b/src/firmware/FirmwarePublication.ts
@@ -14,7 +14,10 @@ import { SafeOutputTreeCreationFailure } from "../artifacts/SafeOutputTreeCreati
 import { AnalysisOutputError } from "../domain/analysisErrorCore.js";
 import { ProviderCleanupError } from "../domain/providerCleanupError.js";
 import { jsonValueSchema } from "../domain/jsonValue.js";
-import { firmwareResultSchemas } from "../domain/firmware/firmwareAnalysis.js";
+import {
+  firmwareResultSchemas,
+  MAX_FIRMWARE_EXTRACTION_DEPTH,
+} from "../domain/firmware/firmwareAnalysis.js";
 import type { FirmwareFileAccess, FirmwareEntry } from "./FirmwareFiles.js";
 import type { normalizeUnblobReport } from "./FirmwareReports.js";
 import type { extractionGap } from "../domain/firmware/firmwareAnalysis.js";
@@ -33,8 +36,7 @@ const GAP_CONTINUATIONS: Record<ExtractionGap["kind"], string> = {
     "No static extraction continues past encryption; treat the region as unexamined rather than empty or corrupt.",
   "extractor-failure":
     "The producer retained this chunk's extraction problem in diagnostics. Review the reported failure, then rerun extract_firmware on the same immutable input with a fresh output_directory; the region is not decoded content.",
-  "depth-limited":
-    "Rerun extract_firmware with a higher max_depth (up to 10) and a fresh output_directory to descend into this path.",
+  "depth-limited": `Rerun extract_firmware with a higher max_depth (up to ${MAX_FIRMWARE_EXTRACTION_DEPTH}) and a fresh output_directory to descend into this path.`,
   "unpublished-entry":
     "The entry is retained as metadata; only regular files are published, without executable permission bits.",
 };
@@ -45,14 +47,11 @@ const UNNAMED_DEPENDENCY_CONTINUATION =
 import { FIRMWARE_LIMITS } from "./FirmwareRelease.js";
 import type { FirmwareDeadline } from "./FirmwareDeadline.js";
 
-/** The depth ceiling cannot be raised past the input schema maximum. */
-const MAX_EXTRACTION_DEPTH = 10;
-
 const depthContinuation = (
   maxDepth: number,
   publishedChildPaths: readonly string[],
 ): string =>
-  maxDepth < MAX_EXTRACTION_DEPTH
+  maxDepth < MAX_FIRMWARE_EXTRACTION_DEPTH
     ? GAP_CONTINUATIONS["depth-limited"]
     : publishedChildPaths.length > 0
       ? `This extraction already ran at the lane's maximum depth. To continue, rerun extract_firmware with path set to any eligible published child below this path and a fresh output directory; each child listed here restarts the depth budget: ${publishedChildPaths.map((path) => JSON.stringify(path)).join(", ")}.`
@@ -414,7 +413,7 @@ const extractionGaps = (
   // fresh firmware input could actually accept; the index is only needed
   // when a depth row will actually consult it.
   const ceilingReached =
-    maxDepth >= MAX_EXTRACTION_DEPTH &&
+    maxDepth >= MAX_FIRMWARE_EXTRACTION_DEPTH &&
     normalized.depth_limited_paths.length > 0;
   const reRootablePaths = new Map<string, Set<string>>();
   if (ceilingReached)