refactor: unify system prompt runtime params

src/agents/pi-embedded-runner/run/attempt.ts

@@ -64,7 +64,7 @@ import { prewarmSessionFile, trackSessionManagerAccess } from "../session-manage
 import { prepareSessionManagerForRun } from "../session-manager-init.js";
 import { buildEmbeddedSystemPrompt, createSystemPromptOverride } from "../system-prompt.js";
 import { splitSdkTools } from "../tool-split.js";
-import { formatUserTime, resolveUserTimeFormat, resolveUserTimezone } from "../../date-time.js";
+import { buildSystemPromptParams } from "../../system-prompt-params.js";
 import { describeUnknownError, mapThinkingLevel } from "../utils.js";
 import { resolveSandboxRuntimeStatus } from "../../sandbox/runtime-status.js";
 import { isTimeoutError } from "../../failover-error.js";
@@ -196,25 +196,25 @@ export async function runEmbeddedAttempt(
             return level ? { level, channel: "Telegram" } : undefined;
           })()
         : undefined;
-    const runtimeInfo = {
-      host: machineName,
-      os: `${os.type()} ${os.release()}`,
-      arch: os.arch(),
-      node: process.version,
-      model: `${params.provider}/${params.modelId}`,
-      channel: runtimeChannel,
-      capabilities: runtimeCapabilities,
-    };
-
-    const sandboxInfo = buildEmbeddedSandboxInfo(sandbox, params.bashElevated);
-    const reasoningTagHint = isReasoningTagProvider(params.provider);
-    const userTimezone = resolveUserTimezone(params.config?.agents?.defaults?.userTimezone);
-    const userTimeFormat = resolveUserTimeFormat(params.config?.agents?.defaults?.timeFormat);
-    const userTime = formatUserTime(new Date(), userTimezone, userTimeFormat);
     const { defaultAgentId, sessionAgentId } = resolveSessionAgentIds({
       sessionKey: params.sessionKey,
       config: params.config,
     });
+    const sandboxInfo = buildEmbeddedSandboxInfo(sandbox, params.bashElevated);
+    const reasoningTagHint = isReasoningTagProvider(params.provider);
+    const { runtimeInfo, userTimezone, userTime, userTimeFormat } = buildSystemPromptParams({
+      config: params.config,
+      agentId: sessionAgentId,
+      runtime: {
+        host: machineName,
+        os: `${os.type()} ${os.release()}`,
+        arch: os.arch(),
+        node: process.version,
+        model: `${params.provider}/${params.modelId}`,
+        channel: runtimeChannel,
+        capabilities: runtimeCapabilities,
+      },
+    });
     const isDefaultAgent = sessionAgentId === defaultAgentId;
     const promptMode = isSubagentSessionKey(params.sessionKey) ? "minimal" : "full";
     const docsPath = await resolveClawdbotDocsPath({

src/agents/pi-embedded-runner/system-prompt.ts

@@ -23,6 +23,7 @@ export function buildEmbeddedSystemPrompt(params: {
   /** Controls which hardcoded sections to include. Defaults to "full". */
   promptMode?: PromptMode;
   runtimeInfo: {
+    agentId?: string;
     host: string;
     os: string;
     arch: string;