diff --git a/src/runtime/config.ts b/src/runtime/config.ts
index a76b4531..ac8fb13f 100644
--- a/src/runtime/config.ts
+++ b/src/runtime/config.ts
@@ -1,73 +1,86 @@
 import type { ReasoningEffort } from "../generated/app-server/ReasoningEffort";
+import type { ReasoningSummary } from "../generated/app-server/ReasoningSummary";
+import type { Verbosity } from "../generated/app-server/Verbosity";
+import type { WebSearchMode } from "../generated/app-server/WebSearchMode";
 import type { ConfigReadResponse } from "../generated/app-server/v2/ConfigReadResponse";
+import type { AppsConfig } from "../generated/app-server/v2/AppsConfig";
+import type { AskForApproval } from "../generated/app-server/v2/AskForApproval";
 import type { ApprovalsReviewer } from "../generated/app-server/v2/ApprovalsReviewer";
+import type { Config } from "../generated/app-server/v2/Config";
+import type { ProfileV2 } from "../generated/app-server/v2/ProfileV2";
+import type { SandboxMode } from "../generated/app-server/v2/SandboxMode";
+import type { SandboxWorkspaceWrite } from "../generated/app-server/v2/SandboxWorkspaceWrite";
+import type { ToolsV2 } from "../generated/app-server/v2/ToolsV2";
 import { parseServiceTier, type ServiceTier } from "../app-server/service-tier";
 import { isReasoningEffort } from "./model";
 
 export interface RuntimeConfigProjection {
   profile: string | null;
   model: string | null;
-  modelProvider: unknown;
+  modelProvider: string | null;
   reasoningEffort: ReasoningEffort | null;
   rawReasoningEffort: string | null;
-  reasoningSummary: unknown;
-  verbosity: unknown;
+  reasoningSummary: ReasoningSummary | null;
+  verbosity: Verbosity | null;
   serviceTier: ServiceTier | null;
   approvalsReviewer: ApprovalsReviewer | null;
-  approvalPolicy: unknown;
-  webSearch: unknown;
+  approvalPolicy: AskForApproval | null;
+  webSearch: WebSearchMode | null;
   modelContextWindow: number | null;
   autoCompactTokenLimit: number | null;
-  sandboxMode: unknown;
-  workspaceNetworkAccess: unknown;
-  writableRoots: unknown;
+  sandboxMode: SandboxMode | null;
+  workspaceNetworkAccess: SandboxWorkspaceWrite["network_access"] | null;
+  writableRoots: SandboxWorkspaceWrite["writable_roots"] | null;
   hooksEnabled: unknown;
   applyPatchFreeformEnabled: unknown;
-  toolWebSearch: unknown;
-  apps: Record<string, unknown>;
+  toolWebSearch: ToolsV2["web_search"] | null;
+  apps: AppsConfig | null;
 }
 
 export function readRuntimeConfig(effectiveConfig: ConfigReadResponse | null): RuntimeConfigProjection {
   const config = configRecord(effectiveConfig);
   const features = asRecord(config["features"]);
-  const tools = asRecord(resolvedConfigValue(config, "tools"));
-  const workspaceWrite = asRecord(config["sandbox_workspace_write"]);
+  const tools = resolvedConfigValue(config, "tools") ?? null;
+  const workspaceWrite = config.sandbox_workspace_write ?? null;
   const effort = resolvedConfigValue(config, "model_reasoning_effort");
   return {
-    profile: stringOrNull(config["profile"]),
+    profile: stringOrNull(config.profile),
     model: nonEmptyStringOrNull(resolvedConfigValue(config, "model")),
-    modelProvider: resolvedConfigValue(config, "model_provider"),
+    modelProvider: resolvedConfigValue(config, "model_provider") ?? null,
     reasoningEffort: isReasoningEffort(effort) ? effort : null,
     rawReasoningEffort: nonEmptyStringOrNull(effort),
-    reasoningSummary: resolvedConfigValue(config, "model_reasoning_summary"),
-    verbosity: resolvedConfigValue(config, "model_verbosity"),
+    reasoningSummary: resolvedConfigValue(config, "model_reasoning_summary") ?? null,
+    verbosity: resolvedConfigValue(config, "model_verbosity") ?? null,
     serviceTier: parseServiceTier(resolvedConfigValue(config, "service_tier")),
     approvalsReviewer: approvalsReviewerOrNull(resolvedConfigValue(config, "approvals_reviewer")),
-    approvalPolicy: resolvedConfigValue(config, "approval_policy"),
-    webSearch: resolvedConfigValue(config, "web_search"),
-    modelContextWindow: numberOrNull(config["model_context_window"]),
-    autoCompactTokenLimit: numberOrNull(config["model_auto_compact_token_limit"]),
-    sandboxMode: config["sandbox_mode"],
-    workspaceNetworkAccess: workspaceWrite["network_access"],
-    writableRoots: workspaceWrite["writable_roots"],
+    approvalPolicy: resolvedConfigValue(config, "approval_policy") ?? null,
+    webSearch: resolvedConfigValue(config, "web_search") ?? null,
+    modelContextWindow: numberOrNull(config.model_context_window),
+    autoCompactTokenLimit: numberOrNull(config.model_auto_compact_token_limit),
+    sandboxMode: config.sandbox_mode ?? null,
+    workspaceNetworkAccess: workspaceWrite?.network_access ?? null,
+    writableRoots: workspaceWrite?.writable_roots ?? null,
     hooksEnabled: features["hooks"],
     applyPatchFreeformEnabled: features["apply_patch_freeform"],
-    toolWebSearch: tools["web_search"],
-    apps: asRecord(config["apps"]),
+    toolWebSearch: tools?.web_search ?? null,
+    apps: config.apps ?? null,
   };
 }
 
-function configRecord(effectiveConfig: ConfigReadResponse | null): Record<string, unknown> {
-  return fillMissingConfigValues(asRecord(effectiveConfig?.config), effectiveConfig?.layers ?? null);
+type ConfigProjectionRecord = Partial<Config> & Record<string, unknown>;
+type ProfileProjectionRecord = Partial<ProfileV2> & Record<string, unknown>;
+
+function configRecord(effectiveConfig: ConfigReadResponse | null): ConfigProjectionRecord {
+  return fillMissingConfigValues(asConfigRecord(effectiveConfig?.config), effectiveConfig?.layers ?? null);
 }
 
-function selectedProfileConfig(config: Record<string, unknown>): Record<string, unknown> {
-  const profile = config["profile"];
+function selectedProfileConfig(config: ConfigProjectionRecord): ProfileProjectionRecord {
+  const profile = config.profile;
   const profileName = typeof profile === "string" && profile.length > 0 ? profile : null;
-  return profileName ? asRecord(asRecord(config["profiles"])[profileName]) : {};
+  return profileName ? asProfileRecord(asRecord(config.profiles)[profileName]) : {};
 }
 
-function resolvedConfigValue(config: Record<string, unknown>, key: string): unknown {
+function resolvedConfigValue<K extends keyof Config>(config: ConfigProjectionRecord, key: K): Config[K] | undefined {
   const profileValue = selectedProfileConfig(config)[key];
   return profileValue ?? config[key];
 }
@@ -80,14 +93,23 @@ function asRecord(value: unknown): Record<string, unknown> {
   return value && typeof value === "object" ? (value as Record<string, unknown>) : {};
 }
 
-function fillMissingConfigValues(config: Record<string, unknown>, layers: ConfigReadResponse["layers"]): Record<string, unknown> {
+function asConfigRecord(value: unknown): ConfigProjectionRecord {
+  return asRecord(value) as ConfigProjectionRecord;
+}
+
+function asProfileRecord(value: unknown): ProfileProjectionRecord {
+  return asRecord(value) as ProfileProjectionRecord;
+}
+
+function fillMissingConfigValues(config: ConfigProjectionRecord, layers: ConfigReadResponse["layers"]): ConfigProjectionRecord {
   if (!layers || layers.length === 0) return config;
   const fallback = rawLayerConfigRecord(layers);
   if (Object.keys(fallback).length === 0) return config;
 
-  const merged = { ...config };
+  const merged: ConfigProjectionRecord = { ...config };
+  const mergedRecord = merged as Record<string, unknown>;
   for (const [key, value] of Object.entries(fallback)) {
-    merged[key] ??= value;
+    mergedRecord[key] ??= value;
   }
   return merged;
 }
diff --git a/src/runtime/view.ts b/src/runtime/view.ts
index be43f4e6..17a746bc 100644
--- a/src/runtime/view.ts
+++ b/src/runtime/view.ts
@@ -262,13 +262,14 @@ function writableRootsLabel(value: unknown): string {
   return `${String(value.length)} roots`;
 }
 
-function enabledAppsLabel(apps: Record<string, unknown>): string {
-  const enabled = Object.entries(apps)
+function enabledAppsLabel(apps: unknown): string {
+  const appConfig = asRecord(apps);
+  const enabled = Object.entries(appConfig)
     .filter(([key, app]) => key !== "_default" && asRecord(app)["enabled"] === true)
     .map(([key]) => key)
     .sort();
   if (enabled.length > 0) return enabled.join(", ");
-  const defaultConfig = asRecord(apps["_default"]);
+  const defaultConfig = asRecord(appConfig["_default"]);
   return stringValue(defaultConfig["enabled"], "(from default)");
 }