refactor: agent instructions (#764)

- replace `__TOOLS__` with `{{__tools__}}`
- after `.clear messages`, update system message of agent session
- show interpolated instructions in agent info

1 files changed, 3 insertions, 0 deletions

diff --git a/src/config/mod.rs b/src/config/mod.rs
index c9a4a73..8f719f4 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -861,6 +861,9 @@ impl Config {
     pub fn clear_session_messages(&mut self) -> Result<()> {
         if let Some(session) = self.session.as_mut() {
             session.clear_messages();
+            if let Some(prompt) = self.agent.as_ref().map(|v| v.interpolated_instructions()) {
+                session.update_role_prompt(&prompt);
+            }
         } else {
             bail!("No session")
         }