From cff355d7e636740a52f0b83613789d60fa825bee Mon Sep 17 00:00:00 2001
From: weichen <weichen@home.local>
Date: Wed, 7 Oct 2026 17:12:24 +0000
Subject: [PATCH] Carry the split usage fields through squad events (N3 WP6)

Why: the exec bridge now threads Last*/cache (Agent-Native#39); squad
ProcessEvent carries them to hosts (the product's squad runner reads
them for usage accounting).
Evidence: GOWORK=off go vet green across squad and adapters/native;
nested pin at the merged native.
Impact: additive event fields.
Refs: Agent-Native#39, N3 plan WP6
---
 adapters/native/register.go |  2 ++
 deps/agent-native           |  2 +-
 squad/port.go               | 17 +++++++++++------
 3 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/adapters/native/register.go b/adapters/native/register.go
index 2b064c8..d129716 100644
--- a/adapters/native/register.go
+++ b/adapters/native/register.go
@@ -138,6 +138,8 @@ func toNative(req squad.ExecRequest) exec.Request {
 			prev(squad.ProcessEvent{
 				Type: ev.Type, Text: ev.Text, Tool: ev.Tool, Detail: ev.Detail,
 				PromptTokens: ev.PromptTokens, CompletionTokens: ev.CompletionTokens,
+				LastPromptTokens: ev.LastPromptTokens, LastCompletionTokens: ev.LastCompletionTokens,
+				CacheReadTokens: ev.CacheReadTokens, CacheWriteTokens: ev.CacheWriteTokens,
 			})
 		}
 	}
diff --git a/deps/agent-native b/deps/agent-native
index 2eccf3f..1ac21c6 160000
--- a/deps/agent-native
+++ b/deps/agent-native
@@ -1 +1 @@
-Subproject commit 2eccf3f6f5f2a1c6085fc641df5b4fcb86cc5a12
+Subproject commit 1ac21c68d4e2c2728d92d6db67a30ff06e0066d3
diff --git a/squad/port.go b/squad/port.go
index 8662ba0..6a1fff9 100644
--- a/squad/port.go
+++ b/squad/port.go
@@ -64,12 +64,17 @@ type ExecBudget struct {
 
 // ProcessEvent 是过程帧。
 type ProcessEvent struct {
-	Type             string
-	Text             string
-	Tool             string
-	Detail           string
-	PromptTokens     int
-	CompletionTokens int
+	Type                 string
+	Text                 string
+	Tool                 string
+	Detail               string
+	PromptTokens         int
+	CompletionTokens     int
+	// 以下在 Type=usage 时填写（N3 WP6：上一请求与缓存命中拆分）。
+	LastPromptTokens     int
+	LastCompletionTokens int
+	CacheReadTokens      int
+	CacheWriteTokens     int
 }
 
 // ExecResult 是一次步骤执行的终态。