diff --git a/.changeset/tui-components-export-cleanup.md b/.changeset/tui-components-export-cleanup.md
new file mode 100644
index 00000000..6f48a56b
--- /dev/null
+++ b/.changeset/tui-components-export-cleanup.md
@@ -0,0 +1,5 @@
+---
+"@perstack/tui-components": patch
+---
+
+Minimize public API surface by removing internal-only type exports and replacing barrel re-exports of external package types with direct imports
diff --git a/packages/tui-components/src/components/streaming-display.tsx b/packages/tui-components/src/components/streaming-display.tsx
index 24f8881e..672ae03a 100644
--- a/packages/tui-components/src/components/streaming-display.tsx
+++ b/packages/tui-components/src/components/streaming-display.tsx
@@ -1,6 +1,6 @@
+import type { PerRunStreamingState, StreamingState } from "@perstack/react"
 import { Box, Text } from "ink"
 import type React from "react"
-import type { PerRunStreamingState, StreamingState } from "../types/index.js"
 import { ActionRow } from "./action-row.js"
 
 type StreamingDisplayProps = {
diff --git a/packages/tui-components/src/hooks/state/use-runtime-info.ts b/packages/tui-components/src/hooks/state/use-runtime-info.ts
index b8ead15d..b78e7cfd 100644
--- a/packages/tui-components/src/hooks/state/use-runtime-info.ts
+++ b/packages/tui-components/src/hooks/state/use-runtime-info.ts
@@ -1,6 +1,7 @@
+import type { PerstackEvent } from "@perstack/core"
 import { useCallback, useState } from "react"
 import { STOP_EVENT_TYPES } from "../../constants.js"
-import type { InitialRuntimeConfig, PerstackEvent, RuntimeInfo } from "../../types/index.js"
+import type { InitialRuntimeConfig, RuntimeInfo } from "../../types/index.js"
 
 type UseRuntimeInfoOptions = {
   initialExpertName?: string
diff --git a/packages/tui-components/src/index.ts b/packages/tui-components/src/index.ts
index 0370efc3..f6553db2 100644
--- a/packages/tui-components/src/index.ts
+++ b/packages/tui-components/src/index.ts
@@ -1,5 +1,6 @@
-export type { ExecutionParams, ExecutionResult } from "./execution/index.js"
 // Execution
+
+export type { ExecutionParams, ExecutionResult } from "./execution/index.js"
 export { renderExecution } from "./execution/index.js"
 export type { SelectionParams, SelectionResult } from "./selection/index.js"
 // Selection
@@ -8,9 +9,7 @@ export { renderSelection } from "./selection/index.js"
 // Types
 export type {
   CheckpointHistoryItem,
-  EventHistoryItem,
   ExpertOption,
   InitialRuntimeConfig,
   JobHistoryItem,
-  RuntimeInfo,
 } from "./types/index.js"
diff --git a/packages/tui-components/src/types/base.ts b/packages/tui-components/src/types/base.ts
index d626f205..b6e94bf0 100644
--- a/packages/tui-components/src/types/base.ts
+++ b/packages/tui-components/src/types/base.ts
@@ -1,6 +1,3 @@
-export type { Activity, PerstackEvent } from "@perstack/core"
-export type { PerRunStreamingState, StreamingState } from "@perstack/react"
-
 export type RuntimeInfo = {
   runtimeVersion?: string
   expertName?: string
diff --git a/packages/tui-components/src/types/index.ts b/packages/tui-components/src/types/index.ts
index b30e3266..219efb55 100644
--- a/packages/tui-components/src/types/index.ts
+++ b/packages/tui-components/src/types/index.ts
@@ -1,14 +1,10 @@
 export type {
-  Activity,
   CheckpointHistoryItem,
   EventHistoryItem,
   ExpertOption,
   InitialRuntimeConfig,
   JobHistoryItem,
-  PerRunStreamingState,
-  PerstackEvent,
   RuntimeInfo,
-  StreamingState,
 } from "./base.js"
 export type {
   BrowsingCheckpointsState,
diff --git a/packages/tui-components/src/utils/event-queue.ts b/packages/tui-components/src/utils/event-queue.ts
index 52fc44b6..07d13a8a 100644
--- a/packages/tui-components/src/utils/event-queue.ts
+++ b/packages/tui-components/src/utils/event-queue.ts
@@ -1,4 +1,4 @@
-import type { PerstackEvent } from "../types/index.js"
+import type { PerstackEvent } from "@perstack/core"
 
 type ErrorLogger = (message: string, error: unknown) => void
 const defaultErrorLogger: ErrorLogger = (message, error) => {