diff --git a/extensions/device-pair/pair-command-auth.ts b/extensions/device-pair/pair-command-auth.ts
index 60bc4501b4b..caac521f2ca 100644
--- a/extensions/device-pair/pair-command-auth.ts
+++ b/extensions/device-pair/pair-command-auth.ts
@@ -3,7 +3,7 @@ type PairingCommandAuthParams = {
   gatewayClientScopes?: readonly string[] | null;
 };
 
-export type PairingCommandAuthState = {
+type PairingCommandAuthState = {
   isInternalGatewayCaller: boolean;
   isMissingInternalPairingPrivilege: boolean;
   approvalCallerScopes?: readonly string[];
diff --git a/extensions/skill-workshop/src/skills.ts b/extensions/skill-workshop/src/skills.ts
index 3623bc15459..5adc99a4497 100644
--- a/extensions/skill-workshop/src/skills.ts
+++ b/extensions/skill-workshop/src/skills.ts
@@ -19,7 +19,7 @@ export function normalizeSkillName(value: string): string {
     .slice(0, 80);
 }
 
-export function assertValidSkillName(name: string): string {
+function assertValidSkillName(name: string): string {
   const normalized = normalizeSkillName(name);
   if (!VALID_SKILL_NAME.test(normalized)) {
     throw new Error(`invalid skill name: ${name}`);
diff --git a/extensions/skill-workshop/src/store.ts b/extensions/skill-workshop/src/store.ts
index b6f52ba99fc..8656d4edf3b 100644
--- a/extensions/skill-workshop/src/store.ts
+++ b/extensions/skill-workshop/src/store.ts
@@ -9,7 +9,7 @@ type StoreFile = {
   review?: SkillWorkshopReviewState;
 };
 
-export type SkillWorkshopReviewState = {
+type SkillWorkshopReviewState = {
   turnsSinceReview: number;
   toolCallsSinceReview: number;
   lastReviewAt?: number;
diff --git a/extensions/skill-workshop/src/text.ts b/extensions/skill-workshop/src/text.ts
index 14e4a06969c..e683ef1f4af 100644
--- a/extensions/skill-workshop/src/text.ts
+++ b/extensions/skill-workshop/src/text.ts
@@ -25,7 +25,7 @@ function extractTextBlock(block: unknown): string {
   return readTextValue((block as { text?: unknown }).text);
 }
 
-export function extractMessageText(content: unknown): string {
+function extractMessageText(content: unknown): string {
   if (typeof content === "string") {
     return content;
   }