Preserve agent question answers and plan output

AGENTS.md

@@ -24,7 +24,7 @@ Environment variables:
 - `WS_SERVER_URL` - WebSocket endpoint (default: `ws://localhost:8080/graphql/v2`)
 
 ### Testing
-- During interactive bug-fix verification, make the requested code changes first and run only `cargo run --bin galaxy-oss` for the user to verify. Leave the app running for the user; do not stop it or treat the command timeout as a failure. Do not run `cargo fmt`, `cargo check`, `cargo clippy`, presubmit, or other validation commands until the user confirms the fix.
+- During interactive feature and bug-fix verification, make the requested code changes first and run only `cargo run --bin galaxy-oss` for the user to verify. Leave the app running for the user; do not stop it or treat the command timeout as a failure. Do not run `cargo fmt`, `cargo check`, `cargo test`, `cargo clippy`, presubmit, or other validation commands until the user confirms the behavior. Run formatting, tests, and linting only as the final cleanup step after interactive approval.
 - `cargo nextest run --no-fail-fast --workspace --exclude command-signatures-v2` - Run tests with nextest
 - `cargo nextest run -p galaxy_completer --features v2` - Run completer tests with v2 features
 - `cargo test --doc` - Run doc tests

app/src/ai/runtime/rig_request.rs

@@ -807,7 +807,7 @@ fn build_system_prompt(
     match mode {
         RigRequestMode::Normal => {}
         RigRequestMode::Plan => prompt.push_str(
-            "## Plan Mode\nInspect and produce an implementation-ready plan. Do not edit files or perform state-changing actions.\n\n",
+            "## Plan Mode\nInspect and produce an implementation-ready plan. Do not edit files or perform state-changing actions. Research as needed, then finish by calling `create_plan` to write the plan with the built-in planning tools. If a plan document already exists for this task, call `edit_plan` instead. Do not return the plan only as prose, and do not claim completion until the plan tool succeeds.\n\n",
         ),
         RigRequestMode::Orchestrate => prompt.push_str(
             "## Orchestration Mode\nDelegate only independent, bounded work where parallelism materially helps, then synthesize the results.\n\n",

app/src/ai/runtime/rig_request_tests.rs

@@ -200,6 +200,42 @@ fn normal_turn_advertises_plan_creation_and_corrects_false_unavailability_claims
     assert!(prompt.contains("do not implement it until they approve"));
 }
 
+#[test]
+fn plan_turn_requires_a_plan_tool_result() {
+    let mut params = RequestParams::new_for_test();
+    let mut input = user_query("Design the implementation");
+    let AIAgentInput::UserQuery {
+        user_query_mode, ..
+    } = &mut input
+    else {
+        unreachable!("user_query returns a user query input");
+    };
+    *user_query_mode = UserQueryMode::Plan;
+    params.input = vec![input];
+
+    let prepared = prepare_rig_turn(
+        &config(),
+        params,
+        vec![ToolType::CreateDocuments, ToolType::EditDocuments],
+        Vec::new(),
+    );
+    let prompt = prepared.request.system_prompt.expect("system prompt");
+
+    assert!(prepared
+        .request
+        .tools
+        .iter()
+        .any(|tool| tool.name == "create_plan"));
+    assert!(prepared
+        .request
+        .tools
+        .iter()
+        .any(|tool| tool.name == "edit_plan"));
+    assert!(prompt.contains("finish by calling `create_plan`"));
+    assert!(prompt.contains("call `edit_plan` instead"));
+    assert!(prompt.contains("Do not return the plan only as prose"));
+}
+
 #[test]
 fn no_tools_turn_flattens_historical_tool_protocol_messages() {
     let mut params = RequestParams::new_for_test();

crates/ai/src/agent/action_result/mod.rs

@@ -294,13 +294,44 @@ impl AIAgentActionResultType {
             | Self::FetchConversation(_)
             | Self::StartAgent(_)
             | Self::SendMessageToAgent(_)
-            | Self::AskUserQuestion(_)
             | Self::WaitForEvents(_) => self.to_string(),
+            Self::AskUserQuestion(result) => ask_user_question_result_content(result),
             Self::RunAgents(result) => result.model_content(),
         }
     }
 }
 
+fn ask_user_question_result_content(result: &AskUserQuestionResult) -> String {
+    match result {
+        AskUserQuestionResult::Success { answers } => {
+            let answers = answers
+                .iter()
+                .map(|answer| match answer {
+                    AskUserQuestionAnswerItem::Answered {
+                        question_id,
+                        selected_options,
+                        other_text,
+                    } => serde_json::json!({
+                        "question_id": question_id,
+                        "selected_options": selected_options,
+                        "other_text": other_text,
+                    }),
+                    AskUserQuestionAnswerItem::Skipped { question_id } => serde_json::json!({
+                        "question_id": question_id,
+                        "skipped": true,
+                    }),
+                })
+                .collect::<Vec<_>>();
+            serde_json::json!({ "answers": answers }).to_string()
+        }
+        AskUserQuestionResult::SkippedByAutoApprove { question_ids } => serde_json::json!({
+            "skipped_by_auto_approve": question_ids,
+        })
+        .to_string(),
+        AskUserQuestionResult::Error(_) | AskUserQuestionResult::Cancelled => result.to_string(),
+    }
+}
+
 fn command_result_content(command: Option<&str>, output: &str, exit_code: i32) -> String {
     let command = command
         .map(|command| format!("Command: {command}\n"))

crates/ai/src/agent/action_result/mod_tests.rs

@@ -1,9 +1,26 @@
 use super::{
-    AIAgentActionResultType, RequestCommandOutputResult, RunAgentsAgentOutcome,
-    RunAgentsAgentOutcomeKind, RunAgentsLaunchedExecutionMode, RunAgentsResult, StartAgentResult,
-    StartAgentVersion,
+    AIAgentActionResultType, AskUserQuestionAnswerItem, AskUserQuestionResult,
+    RequestCommandOutputResult, RunAgentsAgentOutcome, RunAgentsAgentOutcomeKind,
+    RunAgentsLaunchedExecutionMode, RunAgentsResult, StartAgentResult, StartAgentVersion,
 };
 
+#[test]
+fn ask_user_question_model_content_includes_selected_answers() {
+    let result = AIAgentActionResultType::AskUserQuestion(AskUserQuestionResult::Success {
+        answers: vec![AskUserQuestionAnswerItem::Answered {
+            question_id: "scope".to_string(),
+            selected_options: vec!["Provider-neutral pane plus agent tool".to_string()],
+            other_text: String::new(),
+        }],
+    });
+
+    let content: serde_json::Value = serde_json::from_str(&result.model_content()).unwrap();
+    assert_eq!(
+        content["answers"][0]["selected_options"][0],
+        "Provider-neutral pane plus agent tool"
+    );
+}
+
 #[test]
 fn shell_execution_error_is_failed_but_not_cancelled() {
     let result =