diff --git a/src/config/sessions/transcript-jsonl.ts b/src/config/sessions/transcript-jsonl.ts
index e15eee9aa579..39d587b7b78f 100644
--- a/src/config/sessions/transcript-jsonl.ts
+++ b/src/config/sessions/transcript-jsonl.ts
@@ -50,13 +50,6 @@ export function appendSerializedJsonlEntrySync(
   return content;
 }
 
-export function appendJsonlEntriesSync(filePath: string, entries: readonly unknown[]): void {
-  if (entries.length === 0) {
-    return;
-  }
-  appendFileSync(filePath, serializeJsonlEntries(entries), "utf-8");
-}
-
 export async function writeJsonlEntry(
   filePath: string,
   entry: unknown,
diff --git a/src/config/sessions/transcript-write-context.ts b/src/config/sessions/transcript-write-context.ts
index 95259ef29d47..caf8a042f3b1 100644
--- a/src/config/sessions/transcript-write-context.ts
+++ b/src/config/sessions/transcript-write-context.ts
@@ -105,14 +105,6 @@ export function resolveOwnedSessionTranscriptWriteLockRunner(params: {
   return context.withSessionWriteLock;
 }
 
-export function hasOwnedSessionTranscriptWriteContext(params: {
-  sessionFile?: string;
-  sessionKey?: string;
-}): boolean {
-  const context = ownedTranscriptWriteContext.getStore();
-  return Boolean(context && contextMatches({ context, ...params }));
-}
-
 export function canAdvanceOwnedSessionEntryCache(params: {
   sessionFile?: string;
   sessionKey?: string;
diff --git a/src/cron/active-jobs.ts b/src/cron/active-jobs.ts
index 7d4499db57d4..d66df63633b1 100644
--- a/src/cron/active-jobs.ts
+++ b/src/cron/active-jobs.ts
@@ -139,17 +139,6 @@ export function isCronActiveJobMarkerCurrent(marker: CronActiveJobMarker | undef
   );
 }
 
-/** Returns whether any other cron run is active in this process. */
-export function hasOtherActiveCronJobs(jobId: string) {
-  const state = getCronActiveJobState();
-  for (const [activeJobId, marker] of state.activeJobs) {
-    if (activeJobId !== jobId && isMarkerActiveInGeneration(marker, state.generation)) {
-      return true;
-    }
-  }
-  return false;
-}
-
 /** Returns whether any cron run is active in this process. */
 export function hasActiveCronJobs() {
   return getActiveCronJobCountForGeneration(getCronActiveJobState()) > 0;
diff --git a/src/gateway/chat-attachments.ts b/src/gateway/chat-attachments.ts
index 83429caa3381..b6a54fc2c158 100644
--- a/src/gateway/chat-attachments.ts
+++ b/src/gateway/chat-attachments.ts
@@ -431,23 +431,6 @@ export async function parseMessageWithAttachments(
   };
 }
 
-export async function resolveChatAttachmentLooksLikeImage(
-  attachment: ChatAttachment,
-  index = 0,
-): Promise<boolean> {
-  const normalized = normalizeAttachment(attachment, index, {
-    stripDataUrlPrefix: true,
-    requireImageMime: false,
-  });
-  if (!isValidBase64(normalized.base64)) {
-    throw new Error(`attachment ${normalized.label}: invalid base64 content`);
-  }
-  const providedMime = normalizeMime(normalized.mime);
-  const sniffedMime = normalizeMime(await sniffMimeFromBase64(normalized.base64));
-  const labelMime = normalizeMime(mimeTypeFromFilePath(normalized.label));
-  return isImageMime(resolveAttachmentMime({ sniffedMime, providedMime, labelMime }));
-}
-
 /**
  * @deprecated Use parseMessageWithAttachments instead.
  * This function converts images to markdown data URLs which Claude API cannot process as images.
diff --git a/src/gateway/method-scopes.ts b/src/gateway/method-scopes.ts
index bf5421198680..1494916b0e8c 100644
--- a/src/gateway/method-scopes.ts
+++ b/src/gateway/method-scopes.ts
@@ -63,21 +63,6 @@ export function isApprovalMethod(method: string): boolean {
   return resolveScopedMethod(method) === APPROVALS_SCOPE;
 }
 
-/** Returns true when a method requires the pairing operator scope. */
-export function isPairingMethod(method: string): boolean {
-  return resolveScopedMethod(method) === PAIRING_SCOPE;
-}
-
-/** Returns true when a method can be satisfied by read or stronger write/admin scopes. */
-export function isReadMethod(method: string): boolean {
-  return resolveScopedMethod(method) === READ_SCOPE;
-}
-
-/** Returns true when a method requires write or admin operator scope. */
-export function isWriteMethod(method: string): boolean {
-  return resolveScopedMethod(method) === WRITE_SCOPE;
-}
-
 /** Returns true when a method is reserved for node-role clients instead of operators. */
 export function isNodeRoleMethod(method: string): boolean {
   return isCoreNodeGatewayMethod(method);