diff --git a/packages/app/src/hooks/use-image-attachment-picker.ts b/packages/app/src/hooks/use-image-attachment-picker.ts
index 37a77bebd..c79d55e64 100644
--- a/packages/app/src/hooks/use-image-attachment-picker.ts
+++ b/packages/app/src/hooks/use-image-attachment-picker.ts
@@ -48,7 +48,7 @@ export function useImageAttachmentPicker(): UseImageAttachmentPickerResult {
       }
 
       const result = await ImagePicker.launchImageLibraryAsync({
-        mediaTypes: ImagePicker.MediaTypeOptions.Images,
+        mediaTypes: ["images"] as ImagePicker.MediaType[],
         allowsMultipleSelection: true,
         quality: 0.8,
       });
diff --git a/plan.md b/plan.md
index a66548af7..e943c51ac 100644
--- a/plan.md
+++ b/plan.md
@@ -43,6 +43,8 @@
 
 - [x] `npm test` currently fails in `packages/app` with Vitest throwing `Unexpected call to process.send` / `ERR_INVALID_ARG_TYPE` before any tests run. Track down the coverage/pool config causing this and make sure the app suite actually executes (it should include the hydrated tool-call tests mentioned above).
   - Forced the app Vitest config to use the `forks` pool (keeps `process.send` intact for Expo/xcode helpers) so the suite boots reliably; `npm test --workspace=@voice-dev/app` now runs the harness tests and reproduces the expected hydration failure instead of crashing ahead of collection.
-- [ ] WARN [expo-image-picker] `ImagePicker.MediaTypeOptions` have been deprecated. Use `ImagePicker.MediaType` or an array of `ImagePicker.MediaType` instead.
+- [x] WARN [expo-image-picker] `ImagePicker.MediaTypeOptions` have been deprecated. Use `ImagePicker.MediaType` or an array of `ImagePicker.MediaType` instead.
+  - Replaced the deprecated `MediaTypeOptions.Images` flag with the new literal `["images"]` media type array in `packages/app/src/hooks/use-image-attachment-picker.ts`, silencing the Expo warning when attaching photos. `npm run typecheck --workspace=@voice-dev/app` still fails in the pre-existing stream harness files (unchanged from before this fix).
 - [ ] Update the AgentInput controls so the buttons reflect agent state: when idle show `Dictate` + `Realtime` by default (switch to `Send` when the text box has content); when an agent is running show `Realtime` + `Cancel` regardless of input so you can interrupt without typing. Realtime toggle must remain available in both states.
-- Implement long press on the agent list item to opena a light bottom sheet with some actions, for now: "Delete agent" all this will do is remove it from our own persistence, but the agent will still exist in the claude/codex persistance and thats out of scope to remove. Its esentially just to remove it from the list, disown it.
+- [ ] Implement long press on the agent list item to opena a light bottom sheet with some actions, for now: "Delete agent" all this will do is remove it from our own persistence, but the agent will still exist in the claude/codex persistance and thats out of scope to remove. Its esentially just to remove it from the list, disown it.
+- [ ] Implement a function `ensureValidJson` that walks an object and validates that all values are valid JSON (no undefined, null, or non-string values). Use this for all return valies in the MCP server tools.