diff --git a/src/domain/graph/builder/helpers.ts b/src/domain/graph/builder/helpers.ts
index 4dfd6f46..c0eba2d4 100644
--- a/src/domain/graph/builder/helpers.ts
+++ b/src/domain/graph/builder/helpers.ts
@@ -48,6 +48,13 @@ export const BUILTIN_RECEIVERS: Set<string> = new Set([
   'require',
 ]);
 
+/** Phase 8.5: confidence penalty applied to CHA-dispatch edges. */
+export const CHA_DISPATCH_PENALTY = 0.1;
+/** Phase 8.5: fixed confidence for typed-receiver (interface/CHA) dispatch edges.
+ *  File proximity is not meaningful for virtual dispatch — all three engine paths
+ *  (WASM inline, WASM post-pass, native post-pass) must agree on this value. */
+export const CHA_TYPED_DISPATCH_CONFIDENCE = 0.8;
+
 /** Check if a directory entry should be skipped (ignored dirs, dotfiles). */
 function shouldSkipEntry(entry: fs.Dirent, extraIgnore: Set<string> | null): boolean {
   if (entry.name.startsWith('.') && entry.name !== '.') {
@@ -517,7 +524,14 @@ export function runChaPostPass(db: BetterSqlite3Database): number {
             const key = `${source_id}|${methodNode.id}`;
             if (seen.has(key)) continue;
             seen.add(key);
-            newEdges.push([source_id, methodNode.id, 'calls', CHA_DISPATCH_CONFIDENCE, 0, 'cha']);
+            newEdges.push([
+              source_id,
+              methodNode.id,
+              'calls',
+              CHA_TYPED_DISPATCH_CONFIDENCE,
+              0,
+              'cha',
+            ]);
           }
         }
 
diff --git a/src/domain/graph/builder/stages/build-edges.ts b/src/domain/graph/builder/stages/build-edges.ts
index 29cc4100..a60c3acf 100644
--- a/src/domain/graph/builder/stages/build-edges.ts
+++ b/src/domain/graph/builder/stages/build-edges.ts
@@ -45,7 +45,13 @@ import {
 import type { ChaContext } from '../cha.js';
 import { buildChaContext, resolveChaTargets, resolveThisDispatch } from '../cha.js';
 import type { PipelineContext } from '../context.js';
-import { BUILTIN_RECEIVERS, batchInsertEdges, runChaPostPass } from '../helpers.js';
+import {
+  BUILTIN_RECEIVERS,
+  batchInsertEdges,
+  CHA_DISPATCH_PENALTY,
+  CHA_TYPED_DISPATCH_CONFIDENCE,
+  runChaPostPass,
+} from '../helpers.js';
 import { getResolved, isBarrelFile, resolveBarrelExportCached } from './resolve-imports.js';
 
 // ── Local types ──────────────────────────────────────────────────────────
@@ -101,9 +107,6 @@ interface NativeEdge {
   dynamic: number;
 }
 
-/** Phase 8.5: confidence penalty applied to CHA-dispatch edges. */
-export const CHA_DISPATCH_PENALTY = 0.1;
-
 // ── Node lookup setup ───────────────────────────────────────────────────
 
 function makeGetNodeIdStmt(db: BetterSqlite3Database): NodeIdStmt {
@@ -735,13 +738,12 @@ function buildChaPostPass(
       for (const t of chaTargets) {
         const edgeKey = `${caller.id}|${t.id}`;
         if (t.id !== caller.id && !seenByPair.has(edgeKey)) {
-          // Typed-receiver (interface/CHA) dispatch: use the same hardcoded 0.8 that
-          // runChaPostPass (helpers.ts) and runPostNativeCha (native-orchestrator.ts)
-          // use — file proximity is not meaningful for virtual dispatch confidence.
+          // Typed-receiver (interface/CHA) dispatch: use CHA_TYPED_DISPATCH_CONFIDENCE
+          // — file proximity is not meaningful for virtual dispatch confidence.
           // this/super dispatch keeps computeConfidence-based proximity scoring to
           // match runPostNativeThisDispatch (native-orchestrator.ts).
           const conf = isTypedReceiverDispatch
-            ? 0.8
+            ? CHA_TYPED_DISPATCH_CONFIDENCE
             : computeConfidence(relPath, t.file, null) - CHA_DISPATCH_PENALTY;
           if (conf > 0) {
             seenByPair.add(edgeKey);
@@ -1327,13 +1329,12 @@ function buildFileCallEdges(
       for (const t of chaTargets) {
         const edgeKey = `${caller.id}|${t.id}`;
         if (t.id !== caller.id && !seenCallEdges.has(edgeKey) && !ptsEdgeRows.has(edgeKey)) {
-          // Typed-receiver (interface/CHA) dispatch: use the same hardcoded 0.8 that
-          // runChaPostPass (helpers.ts) and runPostNativeCha (native-orchestrator.ts)
-          // use — file proximity is not meaningful for virtual dispatch confidence.
+          // Typed-receiver (interface/CHA) dispatch: use CHA_TYPED_DISPATCH_CONFIDENCE
+          // — file proximity is not meaningful for virtual dispatch confidence.
           // this/super dispatch keeps computeConfidence-based proximity scoring to
-          // match runPostNativeThisDispatch (native-orchestrator.ts line 906).
+          // match runPostNativeThisDispatch (native-orchestrator.ts).
           const conf = isTypedReceiverDispatch
-            ? 0.8
+            ? CHA_TYPED_DISPATCH_CONFIDENCE
             : computeConfidence(relPath, t.file, null) - CHA_DISPATCH_PENALTY;
           if (conf > 0) {
             seenCallEdges.add(edgeKey);
diff --git a/src/domain/graph/builder/stages/native-orchestrator.ts b/src/domain/graph/builder/stages/native-orchestrator.ts
index bdfcd588..f6dd1212 100644
--- a/src/domain/graph/builder/stages/native-orchestrator.ts
+++ b/src/domain/graph/builder/stages/native-orchestrator.ts
@@ -49,14 +49,14 @@ import type { PipelineContext } from '../context.js';
 import {
   batchInsertEdges,
   batchInsertNodes,
-  CHA_DISPATCH_CONFIDENCE,
+  CHA_DISPATCH_PENALTY,
+  CHA_TYPED_DISPATCH_CONFIDENCE,
   collectFiles as collectFilesUtil,
   fileHash,
   fileStat,
   readFileSafe,
 } from '../helpers.js';
 import { NativeDbProxy } from '../native-db-proxy.js';
-import { CHA_DISPATCH_PENALTY } from './build-edges.js';
 import { closeNativeDb } from './native-db-lifecycle.js';
 
 // ── Native orchestrator types ──────────────────────────────────────────
@@ -572,7 +572,7 @@ function runPostNativeCha(
 
   // Find existing call edges targeting qualified methods (e.g., 'IWorker.doWork').
   // Include caller_file and method_file so affectedFiles can be populated for
-  // incremental role reclassification; confidence is CHA_DISPATCH_CONFIDENCE matching runChaPostPass.
+  // incremental role reclassification; confidence uses CHA_TYPED_DISPATCH_CONFIDENCE matching runChaPostPass.
   // When scopeToChangedFiles is true, restrict to call sites in the changed files
   // (safe because no hierarchy or RTA evidence changed outside those files).
   let callToMethods: Array<{ source_id: number; method_name: string; caller_file: string | null }>;
@@ -668,7 +668,7 @@ function runPostNativeCha(
             const key = `${source_id}|${methodNode.id}`;
             if (seen.has(key)) continue;
             seen.add(key);
-            const conf = CHA_DISPATCH_CONFIDENCE;
+            const conf = CHA_TYPED_DISPATCH_CONFIDENCE;
             newEdges.push([source_id, methodNode.id, 'calls', conf, 0, 'cha']);
             newEdgeCount++;
             if (caller_file) affectedFiles.add(caller_file);
@@ -955,14 +955,6 @@ interface PostPassTimings {
   techniqueBackfillMs: number;
 }
 
-interface PostPassTimings {
-  gapDetectMs: number;
-  chaMs: number;
-  thisDispatchMs: number;
-  reclassifyMs: number;
-  techniqueBackfillMs: number;
-}
-
 /** Format timing result from native orchestrator phases + JS post-processing. */
 function formatNativeTimingResult(
   p: Record<string, number>,