fix(agent): make goal completion directive imperative to ensure auto-complete (#4310)

src/openhuman/thread_goals/continuation.rs

@@ -150,7 +150,8 @@ fn continuation_prompt(objective: &str) -> String {
         "[goal continuation] You are resuming autonomous work toward this thread's goal — \
          no user is currently present.\n\nGoal: {objective}\n\n\
          Assess progress against concrete evidence, then take the next useful step. \
-         If the goal is already satisfied, call `goal_complete`. If you are blocked or \
+         Verify whether the goal is already satisfied. If yes, call `goal_complete` now. \
+         If you are blocked or \
          need the user (e.g. an irreversible external action, missing input), stop and \
          summarise the blocker and the next step rather than guessing — external actions \
          are not auto-approved while you run unattended."

src/openhuman/thread_goals/runtime.rs

@@ -91,8 +91,9 @@ pub async fn pause_for_current_thread(workspace_dir: &Path) {
 pub fn active_goal_context_block(goal: &ThreadGoal) -> Option<String> {
     let directive = match goal.status {
         ThreadGoalStatus::Active => {
-            "Keep working toward this goal. When evidence confirms it's done, call \
-             goal_complete; if the objective has changed, update it with goal_set."
+            "Keep working toward this goal. Before responding, verify whether the \
+             objective is satisfied. If confirmed, call `goal_complete` now. \
+             If the objective has changed, call `goal_set` to update it."
         }
         ThreadGoalStatus::BudgetLimited => {
             "This goal has reached its token budget. Stop substantive work: summarise \