diff --git a/src/agents/system-prompt.ts b/src/agents/system-prompt.ts
index b952fed4e..aa13a2748 100644
--- a/src/agents/system-prompt.ts
+++ b/src/agents/system-prompt.ts
@@ -212,7 +212,7 @@ export function buildAgentSystemPrompt(params: {
     sessions_send: "Send a message to another session/sub-agent",
     sessions_spawn: "Spawn a sub-agent session",
     session_status:
-      "Show a /status-equivalent status card (usage + Reasoning/Verbose/Elevated); optional per-session model override",
+      "Show a /status-equivalent status card (usage + Reasoning/Verbose/Elevated); use for model-use questions (📊 session_status); optional per-session model override",
     image: "Analyze an image with the configured image model",
   };
 
diff --git a/src/agents/tools/session-status-tool.ts b/src/agents/tools/session-status-tool.ts
index f2cc6e980..715512519 100644
--- a/src/agents/tools/session-status-tool.ts
+++ b/src/agents/tools/session-status-tool.ts
@@ -215,7 +215,7 @@ export function createSessionStatusTool(opts?: {
     label: "Session Status",
     name: "session_status",
     description:
-      "Show a /status-equivalent session status card. Optional: set per-session model override (model=default resets overrides). Includes usage + cost when available.",
+      "Show a /status-equivalent session status card (usage + cost when available). Use for model-use questions (📊 session_status). Optional: set per-session model override (model=default resets overrides).",
     parameters: SessionStatusToolSchema,
     execute: async (_toolCallId, args) => {
       const params = args as Record<string, unknown>;