diff --git a/.github/workflows/develop.yml b/.github/workflows/develop.yml
index 224a1e43..2831d643 100644
--- a/.github/workflows/develop.yml
+++ b/.github/workflows/develop.yml
@@ -226,6 +226,13 @@ jobs:
       - name: Build mcp
         run: pnpm --filter @docmost/mcp build
 
+      # apps/server imports @docmost/token-estimate at runtime (history-budget.ts,
+      # #490); its dist/ is gitignored and `test:e2e` type-checks + runs the code,
+      # so build it here or tsc fails with TS2307 Cannot find module
+      # '@docmost/token-estimate' (mirrors the editor-ext / mcp build steps above).
+      - name: Build token-estimate
+        run: pnpm --filter @docmost/token-estimate build
+
       - name: Run migrations
         run: pnpm --filter ./apps/server migration:latest
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 509ad6be..fef6b189 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -159,6 +159,14 @@ jobs:
       - name: Build prosemirror-markdown
         run: pnpm --filter @docmost/prosemirror-markdown build
 
+      # @docmost/token-estimate is a shared workspace package the client vitest
+      # suite resolves via its dist build (main: ./dist/index.js); dist/ is
+      # gitignored and `pnpm -r test` does NOT honour nx `dependsOn: ^build`, so
+      # build it before the recursive test run or the client suite fails with
+      # "Failed to resolve import '@docmost/token-estimate'" (#490).
+      - name: Build token-estimate
+        run: pnpm --filter @docmost/token-estimate build
+
       - name: Run unit tests
         run: pnpm -r test
 
diff --git a/Dockerfile b/Dockerfile
index 280e5b55..792bf0e5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -59,6 +59,14 @@ COPY --from=builder /app/packages/mcp/data /app/packages/mcp/data
 COPY --from=builder /app/packages/prosemirror-markdown/build /app/packages/prosemirror-markdown/build
 COPY --from=builder /app/packages/prosemirror-markdown/package.json /app/packages/prosemirror-markdown/package.json
 
+# apps/server imports @docmost/token-estimate (workspace:*) at runtime
+# (history-budget.ts, #490). tsc emits only dist/ and dist/ is gitignored, so the
+# prod install would resolve a broken workspace symlink and the server would die
+# with ERR_MODULE_NOT_FOUND on the first history-budget call. Ship the built
+# package + its manifest, mirroring prosemirror-markdown above.
+COPY --from=builder /app/packages/token-estimate/dist /app/packages/token-estimate/dist
+COPY --from=builder /app/packages/token-estimate/package.json /app/packages/token-estimate/package.json
+
 # Copy root package files
 COPY --from=builder /app/package.json /app/package.json
 COPY --from=builder /app/pnpm*.yaml /app/