diff --git a/src/common/config/schemas/agentPluginInstalls.ts b/src/common/config/schemas/agentPluginInstalls.ts
index 7a87204b61b..026ee99f972 100644
--- a/src/common/config/schemas/agentPluginInstalls.ts
+++ b/src/common/config/schemas/agentPluginInstalls.ts
@@ -122,5 +122,4 @@ export const AgentPluginInstallEntrySchema = z.object({
 });
 
 export type AgentPluginGitSource = z.infer<typeof AgentPluginGitSourceSchema>;
-export type AgentPluginInstallSource = z.infer<typeof AgentPluginInstallSourceSchema>;
 export type AgentPluginInstallEntry = z.infer<typeof AgentPluginInstallEntrySchema>;
diff --git a/src/common/config/schemas/appConfigOnDisk.ts b/src/common/config/schemas/appConfigOnDisk.ts
index b86833c76ce..c6f30660e28 100644
--- a/src/common/config/schemas/appConfigOnDisk.ts
+++ b/src/common/config/schemas/appConfigOnDisk.ts
@@ -14,7 +14,6 @@ import { HEARTBEAT_MAX_INTERVAL_MS, HEARTBEAT_MIN_INTERVAL_MS } from "@/constant
 import { DEFAULT_GOAL_DEFAULTS } from "@/constants/goals";
 
 export { RuntimeEnablementOverridesSchema } from "../../schemas/runtimeEnablement";
-export type { RuntimeEnablementOverrides } from "../../schemas/runtimeEnablement";
 export { UserPreferencesSchema } from "./userPreferences";
 export type { UserPreferences } from "./userPreferences";
 export { TaskSettingsSchema } from "./taskSettings";
@@ -26,11 +25,7 @@ export {
   AgentPluginInstallEntrySchema,
   AgentPluginInstallSourceSchema,
 } from "./agentPluginInstalls";
-export type {
-  AgentPluginGitSource,
-  AgentPluginInstallEntry,
-  AgentPluginInstallSource,
-} from "./agentPluginInstalls";
+export type { AgentPluginGitSource, AgentPluginInstallEntry } from "./agentPluginInstalls";
 
 /**
  * Sparse delegated-run (sub-agent) override profile nested under an agent's
diff --git a/src/common/config/schemas/providerModelEntry.ts b/src/common/config/schemas/providerModelEntry.ts
index 3c0f6e5045c..6d74004cfbb 100644
--- a/src/common/config/schemas/providerModelEntry.ts
+++ b/src/common/config/schemas/providerModelEntry.ts
@@ -10,5 +10,3 @@ export const ProviderModelEntrySchema = z.union([
     })
     .strict(),
 ]);
-
-export type ProviderModelEntry = z.infer<typeof ProviderModelEntrySchema>;
diff --git a/src/common/config/schemas/providersConfig.ts b/src/common/config/schemas/providersConfig.ts
index 986061fa130..aae5127d60e 100644
--- a/src/common/config/schemas/providersConfig.ts
+++ b/src/common/config/schemas/providersConfig.ts
@@ -8,7 +8,6 @@ import { ProviderModelEntrySchema } from "./providerModelEntry";
 export const CacheTtlSchema = z.enum(["5m", "1h"]);
 /** Anthropic request speed; "fast" opts into Fast mode (see anthropicFastMode.ts). */
 export const AnthropicSpeedSchema = z.enum(["standard", "fast"]);
-export type AnthropicSpeed = z.infer<typeof AnthropicSpeedSchema>;
 // "ultrafast" is OpenAI's model-gated premium tier (DevDay 2026-09-29); requests for
 // models without it drop the tier (see openaiModelSupportsServiceTier).
 export const ServiceTierSchema = z.enum(["auto", "default", "flex", "priority", "ultrafast"]);
@@ -21,7 +20,6 @@ export const FastModePreviousServiceTierSchema = z.enum([
   "ultrafast",
   "unset",
 ]);
-export type FastModePreviousServiceTier = z.infer<typeof FastModePreviousServiceTierSchema>;
 export const XAIServiceTierSchema = z.enum(["default", "priority"]);
 export type XAIServiceTier = z.infer<typeof XAIServiceTierSchema>;
 export const XAIFastModePreviousServiceTierSchema = z.enum(["default", "unset"]);
diff --git a/src/common/config/schemas/userPreferences.ts b/src/common/config/schemas/userPreferences.ts
index 46675cf5f51..c49fe69b032 100644
--- a/src/common/config/schemas/userPreferences.ts
+++ b/src/common/config/schemas/userPreferences.ts
@@ -27,7 +27,6 @@ export const ThemePreferenceSchema = z.enum([
   "flexoki-light",
   "flexoki-dark",
 ]);
-export type ThemePreferenceConfig = z.infer<typeof ThemePreferenceSchema>;
 
 export const LaunchBehaviorSchema = z.enum(["dashboard", "new-chat", "last-workspace"]);
 
diff --git a/src/common/constants/storage.ts b/src/common/constants/storage.ts
index d8835a4e877..386fedba2c5 100644
--- a/src/common/constants/storage.ts
+++ b/src/common/constants/storage.ts
@@ -766,13 +766,6 @@ export const MAX_PERSISTED_KEY_CHARS = 8192;
  */
 export type PersistedKeyKind = "ui" | "cache" | "workspace-scoped" | "draft";
 
-/**
- * `workspaceId` keys append a scope id to a fixed prefix. The scope id is usually a workspace id,
- * but creation drafts reuse the same keys with getDraftScopeId()/getPendingScopeId() scope ids and
- * some keys also accept project/global scope ids.
- */
-export type PersistedKeyScope = "global" | "workspaceId";
-
 /**
  * Which scope ids a workspace key is written under, for the budget model: "workspace" keys are
  * counted for every workspace and creation draft, "draft" keys only for creation drafts.
diff --git a/src/common/orpc/schemas/analytics.ts b/src/common/orpc/schemas/analytics.ts
index 90a1f988690..cc3b92e39b2 100644
--- a/src/common/orpc/schemas/analytics.ts
+++ b/src/common/orpc/schemas/analytics.ts
@@ -122,7 +122,6 @@ export const RawQueryColumnSchema = z.object({
   name: z.string(),
   type: z.string(),
 });
-export type RawQueryColumn = z.infer<typeof RawQueryColumnSchema>;
 
 export const RawQueryResultSchema = z.object({
   columns: z.array(RawQueryColumnSchema),
@@ -132,7 +131,6 @@ export const RawQueryResultSchema = z.object({
   rowCountExact: z.boolean(),
   durationMs: z.number(),
 });
-export type RawQueryResult = z.infer<typeof RawQueryResultSchema>;
 /** ETL input validation — each row extracted from chat.jsonl is validated before insert */
 export const EventRowSchema = z.object({
   workspace_id: z.string(),
diff --git a/src/common/orpc/schemas/api.test.ts b/src/common/orpc/schemas/api.test.ts
index 1b59ebcbb8f..874688f7d2c 100644
--- a/src/common/orpc/schemas/api.test.ts
+++ b/src/common/orpc/schemas/api.test.ts
@@ -10,7 +10,7 @@ import {
 } from "./api";
 import { OnChatEventSchema } from "./stream";
 import { MCP_ICON_LIMITS } from "../../constants/mcpIcon";
-import type { AWSCredentialStatus, ProviderConfigInfo, ProvidersConfigMap } from "../types";
+import type { ProviderConfigInfo, ProvidersConfigMap } from "../types";
 
 /**
  * Schema conformance tests for provider types.
@@ -24,7 +24,7 @@ import type { AWSCredentialStatus, ProviderConfigInfo, ProvidersConfigMap } from
  */
 describe("ProviderConfigInfoSchema conformance", () => {
   it("preserves all AWSCredentialStatus fields", () => {
-    const full: AWSCredentialStatus = {
+    const full: ProviderConfigInfo["aws"] = {
       region: "us-east-1",
       profile: "my-sso-profile",
       bearerTokenSet: true,
diff --git a/src/common/orpc/schemas/artifacts.ts b/src/common/orpc/schemas/artifacts.ts
index 4af003f9fe2..ddb56c77e1d 100644
--- a/src/common/orpc/schemas/artifacts.ts
+++ b/src/common/orpc/schemas/artifacts.ts
@@ -93,7 +93,6 @@ export type ArtifactCapabilities = z.infer<typeof ArtifactCapabilitiesSchema>;
  * indexes as corrupt and move their history aside.
  */
 export const ArtifactVersionSourceSchema = z.enum(["publish", "turn-end", "attach_file"]);
-export type ArtifactVersionSource = z.infer<typeof ArtifactVersionSourceSchema>;
 
 /** Shelf pin requested by the agent's `artifact` tool; M5 copies pinned versions to the shelf. */
 export const ArtifactPinSchema = z.enum(["project", "global"]);
diff --git a/src/common/orpc/schemas/skillsCli.ts b/src/common/orpc/schemas/skillsCli.ts
index 7948d240b4f..f727b3af7ce 100644
--- a/src/common/orpc/schemas/skillsCli.ts
+++ b/src/common/orpc/schemas/skillsCli.ts
@@ -18,5 +18,3 @@ export const SkillsCliCommandSchema = z.object({
   /** The exact command to copy. Every argument is shell-safe without quoting. */
   command: z.string(),
 });
-
-export type SkillsCliCommand = z.infer<typeof SkillsCliCommandSchema>;
diff --git a/src/common/orpc/types.ts b/src/common/orpc/types.ts
index 3b3adeb49b1..1526cff99a7 100644
--- a/src/common/orpc/types.ts
+++ b/src/common/orpc/types.ts
@@ -30,7 +30,6 @@ export type SendMessageOptions = z.infer<typeof schemas.SendMessageOptionsSchema
 export type HistoryEditPrecondition = z.infer<typeof schemas.HistoryEditPreconditionSchema>;
 
 // Provider types (single source of truth - derived from schemas)
-export type AWSCredentialStatus = z.infer<typeof schemas.AWSCredentialStatusSchema>;
 export type ProviderModelEntry = z.infer<typeof schemas.ProviderModelEntrySchema>;
 export type ProviderModelDiscoveryResult = z.infer<
   typeof schemas.ProviderModelDiscoveryResultSchema
diff --git a/src/common/schemas/runtimeEnablement.ts b/src/common/schemas/runtimeEnablement.ts
index dc7ba04af1d..bea686a7d9f 100644
--- a/src/common/schemas/runtimeEnablement.ts
+++ b/src/common/schemas/runtimeEnablement.ts
@@ -6,5 +6,3 @@ import { z } from "zod";
 // runtime IDs survive upgrade→downgrade cycles without blocking unrelated edits.
 // The runtime normalizer in config.ts filters to known IDs at load time.
 export const RuntimeEnablementOverridesSchema = z.record(z.string(), z.literal(false));
-
-export type RuntimeEnablementOverrides = z.infer<typeof RuntimeEnablementOverridesSchema>;
diff --git a/src/common/types/evaluation.ts b/src/common/types/evaluation.ts
index f1c7e05205e..0ca57e663a4 100644
--- a/src/common/types/evaluation.ts
+++ b/src/common/types/evaluation.ts
@@ -55,7 +55,6 @@ export const EvaluationInputSchema = z.union([
   z.array(EvaluationJsonValueSchema),
   z.record(z.string(), EvaluationJsonValueSchema),
 ]);
-export type EvaluationInput = z.infer<typeof EvaluationInputSchema>;
 
 export const EvaluationStateSchema = EvaluationInputSchema;
 export type EvaluationState = z.infer<typeof EvaluationStateSchema>;
@@ -116,7 +115,6 @@ export const EvaluationProviderOptionsSchema = z.record(
   z.string(),
   z.record(z.string(), EvaluationJsonValueSchema)
 );
-export type EvaluationProviderOptions = z.infer<typeof EvaluationProviderOptionsSchema>;
 
 /**
  * The sandbox-facing `evaluate(state, spec)` options (consumed by the workflow
diff --git a/src/common/types/review.ts b/src/common/types/review.ts
index 0b0743cc81f..ae117799f6b 100644
--- a/src/common/types/review.ts
+++ b/src/common/types/review.ts
@@ -63,18 +63,6 @@ export interface HunkReadState {
   timestamp: number;
 }
 
-/**
- * Workspace review state (persisted to localStorage)
- */
-export interface ReviewState {
-  /** Workspace ID this review belongs to */
-  workspaceId: string;
-  /** Read state keyed by hunk ID */
-  readState: Record<string, HunkReadState>;
-  /** Timestamp of last update */
-  lastUpdated: number;
-}
-
 /**
  * Sort order options for review panel hunks
  */
@@ -229,19 +217,6 @@ export interface Review {
   statusChangedAt?: number;
 }
 
-/**
- * Persisted state for reviews (per workspace)
- * Contains reviews in all states: pending, attached, and checked
- */
-export interface ReviewsState {
-  /** Workspace ID */
-  workspaceId: string;
-  /** All reviews keyed by ID */
-  reviews: Record<string, Review>;
-  /** Last update timestamp */
-  lastUpdated: number;
-}
-
 /**
  * Helpers for parsing ReviewNoteData.lineRange.
  */
diff --git a/src/common/types/sessionTape.ts b/src/common/types/sessionTape.ts
index 81516de596d..ecd626d945a 100644
--- a/src/common/types/sessionTape.ts
+++ b/src/common/types/sessionTape.ts
@@ -116,14 +116,6 @@ export const SessionTapeTrailerSchema = z.object({
   }),
 });
 
-export const SessionTapeLineSchema = z.union([
-  SessionTapeHeaderSchema,
-  SessionTapeEventLineSchema,
-  SessionTapeTrailerSchema,
-]);
-
 export type SessionTapeHeader = z.infer<typeof SessionTapeHeaderSchema>;
-export type SessionTapeEventLine = z.infer<typeof SessionTapeEventLineSchema>;
 export type SessionTapeEndReason = z.infer<typeof SessionTapeEndReasonSchema>;
 export type SessionTapeTrailer = z.infer<typeof SessionTapeTrailerSchema>;
-export type SessionTapeLine = z.infer<typeof SessionTapeLineSchema>;
diff --git a/src/common/types/stream.ts b/src/common/types/stream.ts
index 5312c2129e6..c530ada6099 100644
--- a/src/common/types/stream.ts
+++ b/src/common/types/stream.ts
@@ -6,9 +6,6 @@ import type { PrefixSwapInvalidatedEventSchema } from "@/common/orpc/schemas/str
 import type { z } from "zod";
 import type { MuxReasoningPart, MuxTextPart, MuxToolPart } from "./message";
 import type {
-  AutoRetryAbandonedEventSchema,
-  AutoRetryScheduledEventSchema,
-  AutoRetryStartingEventSchema,
   ErrorEventSchema,
   ReasoningDeltaEventSchema,
   ReasoningEndEventSchema,
@@ -78,10 +75,6 @@ export type ReasoningEndEvent = z.infer<typeof ReasoningEndEventSchema>;
  */
 export type UsageDeltaEvent = z.infer<typeof UsageDeltaEventSchema>;
 
-export type AutoRetryScheduledEvent = z.infer<typeof AutoRetryScheduledEventSchema>;
-export type AutoRetryStartingEvent = z.infer<typeof AutoRetryStartingEventSchema>;
-export type AutoRetryAbandonedEvent = z.infer<typeof AutoRetryAbandonedEventSchema>;
-
 /**
  * Progress event for pre-stream startup work.
  * Used for both runtime readiness and generic startup breadcrumbs in the barrier UI.
diff --git a/src/common/types/tools.ts b/src/common/types/tools.ts
index 99639ed8923..c5730c9514e 100644
--- a/src/common/types/tools.ts
+++ b/src/common/types/tools.ts
@@ -187,7 +187,6 @@ export type TimelineEventToolArgs = z.infer<typeof TOOL_DEFINITIONS.timeline_eve
 export type TimelineEventToolResult = z.infer<typeof TimelineEventToolResultSchema>;
 
 // Status-update tool types (status page agent mode)
-export type StatusUpdateToolArgs = z.infer<typeof TOOL_DEFINITIONS.status_update.schema>;
 export type StatusUpdateToolResult =
   | { success: true; queued: true; note?: string }
   | { success: false; error: string };
diff --git a/src/common/utils/planReview/planReviewRecord.ts b/src/common/utils/planReview/planReviewRecord.ts
index 462b8889992..5fd1d38c1ac 100644
--- a/src/common/utils/planReview/planReviewRecord.ts
+++ b/src/common/utils/planReview/planReviewRecord.ts
@@ -103,10 +103,7 @@ export const PlanReviewRecordSchema = z.discriminatedUnion("kind", [
 
 export type PlanReviewRecord = z.infer<typeof PlanReviewRecordSchema>;
 export type PlanReviewRecordKind = PlanReviewRecord["kind"];
-export type PlanReviewSnapshotRecord = z.infer<typeof PlanReviewSnapshotRecordSchema>;
 export type PlanReviewFeedbackRecord = z.infer<typeof PlanReviewFeedbackRecordSchema>;
-export type PlanReviewFeedbackComment = z.infer<typeof PlanReviewFeedbackCommentSchema>;
-export type PlanReviewFeedbackReply = z.infer<typeof PlanReviewFeedbackReplySchema>;
 
 /**
  * Snapshot content is line-ending-normalized before hashing so anchors map 1:1 across platforms.
diff --git a/src/common/utils/planReview/planReviewState.ts b/src/common/utils/planReview/planReviewState.ts
index 5729e003232..9f8140a2560 100644
--- a/src/common/utils/planReview/planReviewState.ts
+++ b/src/common/utils/planReview/planReviewState.ts
@@ -56,7 +56,6 @@ export const PlanReviewStateSchema = z.object({
 
 export type PlanReviewSnapshot = z.infer<typeof PlanReviewSnapshotSchema>;
 export type PlanReviewThread = z.infer<typeof PlanReviewThreadSchema>;
-export type PlanReviewThreadReply = z.infer<typeof PlanReviewThreadReplySchema>;
 export type PlanReviewFeedback = z.infer<typeof PlanReviewFeedbackSchema>;
 export type PlanReviewState = z.infer<typeof PlanReviewStateSchema>;
 
diff --git a/src/common/utils/tools/toolDefinitions.ts b/src/common/utils/tools/toolDefinitions.ts
index 836005561ae..0de4c926d67 100644
--- a/src/common/utils/tools/toolDefinitions.ts
+++ b/src/common/utils/tools/toolDefinitions.ts
@@ -103,7 +103,6 @@ import {
   INSTANCE_DISCOVERY_MAX_LIMIT,
 } from "@/constants/agentMessaging";
 import {
-  AskUserQuestionOptionSchema,
   AskUserQuestionQuestionSchema,
   AskUserQuestionToolArgsSchema,
 } from "./askUserQuestionSchemas";
@@ -112,11 +111,7 @@ import {
 // ask_user_question (interactive questions for top-level agents)
 // -----------------------------------------------------------------------------
 
-export {
-  AskUserQuestionOptionSchema,
-  AskUserQuestionQuestionSchema,
-  AskUserQuestionToolArgsSchema,
-};
+export { AskUserQuestionQuestionSchema, AskUserQuestionToolArgsSchema };
 
 const AskUserQuestionUiOnlySchema = z.object({
   questions: z.array(AskUserQuestionQuestionSchema),
diff --git a/src/node/services/agentPlugins/codexHooks.ts b/src/node/services/agentPlugins/codexHooks.ts
index 63c8ee0199e..4aa91fd2b41 100644
--- a/src/node/services/agentPlugins/codexHooks.ts
+++ b/src/node/services/agentPlugins/codexHooks.ts
@@ -48,7 +48,6 @@ export const MAPPED_CODEX_HOOK_EVENTS = {
   UserPromptSubmit: "message.send",
   Stop: "turn.stop",
 } as const;
-export type MappedCodexHookEvent = keyof typeof MAPPED_CODEX_HOOK_EVENTS;
 
 /** Other Codex events: parsed and listed, never run. */
 const IGNORED_CODEX_HOOK_EVENTS = new Set([
diff --git a/src/node/services/claudeDesignService.ts b/src/node/services/claudeDesignService.ts
index 0aae5f55398..0530eaba0c9 100644
--- a/src/node/services/claudeDesignService.ts
+++ b/src/node/services/claudeDesignService.ts
@@ -10,7 +10,6 @@ import {
   CLAUDE_DESIGN_MAX_CREDENTIAL_BYTES,
   CLAUDE_DESIGN_MAX_ERROR_BYTES,
   CLAUDE_DESIGN_SCOPES,
-  CLAUDE_DESIGN_SERVER_NAME,
   CLAUDE_DESIGN_URL,
   CLAUDE_DESIGN_READ_TIMEOUT_MS,
   CLAUDE_DESIGN_TEST_TIMEOUT_MS,
@@ -437,5 +436,3 @@ async function needsConsent(response: Response): Promise<boolean> {
     reader.cancel().catch(() => undefined);
   }
 }
-
-export { CLAUDE_DESIGN_SERVER_NAME };
diff --git a/src/node/services/coderOauthService.test.ts b/src/node/services/coderOauthService.test.ts
index 2d07bc5a46d..d931b31c9a9 100644
--- a/src/node/services/coderOauthService.test.ts
+++ b/src/node/services/coderOauthService.test.ts
@@ -6,7 +6,7 @@ import { Err, Ok } from "@/common/types/result";
 import type { FileLeaseManager, ProvidersConfig, ProvidersConfigStore } from "@/node/config";
 import type { ProviderService } from "@/node/services/providerService";
 import type { WindowService } from "@/node/services/windowService";
-import type { ProviderModelEntry } from "@/common/config/schemas/providerModelEntry";
+import type { ProviderModelEntry } from "@/common/orpc/types";
 import type { CoderOauthAuth } from "@/node/utils/coderOauthAuth";
 import { CODER_GATEWAY_DEFAULT_PROVIDER_NAMES } from "@/common/constants/coderOAuth";
 import { CoderOauthService } from "./coderOauthService";
diff --git a/src/node/services/planReviewService.prepareFeedback.test.ts b/src/node/services/planReviewService.prepareFeedback.test.ts
index e06e8153d9d..ff9bdfb72d0 100644
--- a/src/node/services/planReviewService.prepareFeedback.test.ts
+++ b/src/node/services/planReviewService.prepareFeedback.test.ts
@@ -6,7 +6,7 @@ import {
   parsePlanReviewEnvelope,
 } from "@/common/utils/planReview/planReviewEnvelope";
 import type {
-  PlanReviewFeedbackComment,
+  PlanReviewFeedbackRecord,
   PlanReviewRecord,
 } from "@/common/utils/planReview/planReviewRecord";
 import {
@@ -38,7 +38,7 @@ describe("preparePlanReviewFeedback reply thread context", () => {
     await historyHandle.cleanup();
   });
 
-  async function seed(comments: PlanReviewFeedbackComment[]): Promise<void> {
+  async function seed(comments: PlanReviewFeedbackRecord["comments"]): Promise<void> {
     const records: PlanReviewRecord[] = [
       {
         v: 1,