feat: add read_file tool

agents/ollama.ts

@@ -117,6 +117,7 @@ async function runOllamaLoop(ctx: AgentRunContext): Promise<AgentResult> {
         model,
         messages,
         tools,
+        keep_alive: "10m",
         options: {
           think: false,
         } as Record<string, unknown>,
@@ -140,7 +141,9 @@ async function runOllamaLoop(ctx: AgentRunContext): Promise<AgentResult> {
       // of whether the mode nudge is still pending (the model may have stopped
       // right after select_mode before acting on the guidance).
       if (!calledOutputTool && !addedContinueNudge) {
-        log.info("» model stopped before completing task — nudging to continue");
+        log.info(
+          "» model stopped before completing task — nudging to continue",
+        );
         addedContinueNudge = true;
         messages.push({
           role: "user",