diff --git a/src/hooks/session-recovery/hook.ts b/src/hooks/session-recovery/hook.ts
index 833dcf5dd..aac3abc8e 100644
--- a/src/hooks/session-recovery/hook.ts
+++ b/src/hooks/session-recovery/hook.ts
@@ -123,7 +123,9 @@ export function createSessionRecoveryHook(ctx: PluginInput, options?: SessionRec
       let success = false
 
       if (errorType === "tool_result_missing") {
-        success = await recoverToolResultMissing(ctx.client, sessionID, failedMsg)
+        const lastUser = findLastUserMessage(msgs ?? [])
+        const resumeConfig = extractResumeConfig(lastUser, sessionID)
+        success = await recoverToolResultMissing(ctx.client, sessionID, failedMsg, resumeConfig)
       } else if (errorType === "unavailable_tool") {
         success = await recoverUnavailableTool(ctx.client, sessionID, failedMsg)
       } else if (errorType === "thinking_block_order") {
diff --git a/src/hooks/session-recovery/recover-tool-result-missing.test.ts b/src/hooks/session-recovery/recover-tool-result-missing.test.ts
index a720ef079..430f4e719 100644
--- a/src/hooks/session-recovery/recover-tool-result-missing.test.ts
+++ b/src/hooks/session-recovery/recover-tool-result-missing.test.ts
@@ -129,6 +129,63 @@ describe("recoverToolResultMissing", () => {
       },
     })
   })
+
+  it("pins agent, model, and variant on promptAsync body when resumeConfig provides them", async () => {
+    // given
+    storedParts = [{
+      type: "tool",
+      id: "prt_stored_pin_call",
+      callID: "toolu_pin",
+      tool: "bash",
+      state: { input: {} },
+    }]
+    const { client, promptAsync } = createMockClient()
+    const resumeConfig = {
+      sessionID: "ses_pin",
+      agent: "Hephaestus",
+      model: { providerID: "openai", modelID: "gpt-5.3-codex", variant: "max" },
+    }
+
+    // when
+    const result = await recoverToolResultMissing(client, "ses_pin", failedAssistantMsg, resumeConfig)
+
+    // then
+    expect(result).toBe(true)
+    expect(promptAsync).toHaveBeenCalledTimes(1)
+    const call = promptAsync.mock.calls[0]?.[0] as {
+      body: {
+        agent?: string
+        model?: { providerID: string; modelID: string }
+        variant?: string
+        parts: unknown[]
+      }
+    }
+    expect(call.body.agent).toBe("Hephaestus")
+    expect(call.body.model).toEqual({ providerID: "openai", modelID: "gpt-5.3-codex" })
+    expect(call.body.variant).toBe("max")
+  })
+
+  it("leaves body unchanged when no resumeConfig is provided", async () => {
+    // given
+    storedParts = [{
+      type: "tool",
+      id: "prt_stored_nopin_call",
+      callID: "toolu_nopin",
+      tool: "bash",
+      state: { input: {} },
+    }]
+    const { client, promptAsync } = createMockClient()
+
+    // when
+    const result = await recoverToolResultMissing(client, "ses_nopin", failedAssistantMsg)
+
+    // then
+    expect(result).toBe(true)
+    const call = promptAsync.mock.calls[0]?.[0] as { body: Record<string, unknown> }
+    expect(call.body).not.toHaveProperty("agent")
+    expect(call.body).not.toHaveProperty("model")
+    expect(call.body).not.toHaveProperty("variant")
+  })
 })
 
 export {}
diff --git a/src/hooks/session-recovery/recover-tool-result-missing.ts b/src/hooks/session-recovery/recover-tool-result-missing.ts
index c3d12da53..0e7912571 100644
--- a/src/hooks/session-recovery/recover-tool-result-missing.ts
+++ b/src/hooks/session-recovery/recover-tool-result-missing.ts
@@ -1,5 +1,5 @@
 import type { createOpencodeClient } from "@opencode-ai/sdk"
-import type { MessageData } from "./types"
+import type { MessageData, ResumeConfig } from "./types"
 import { readParts } from "./storage"
 import { isSqliteBackend } from "../../shared/opencode-storage-detection"
 import { normalizeSDKResponse } from "../../shared"
@@ -70,7 +70,8 @@ async function readPartsFromSDKFallback(
 export async function recoverToolResultMissing(
   client: Client,
   sessionID: string,
-  failedAssistantMsg: MessageData
+  failedAssistantMsg: MessageData,
+  resumeConfig?: ResumeConfig
 ): Promise<boolean> {
   let parts = failedAssistantMsg.parts || []
   if (parts.length === 0 && failedAssistantMsg.info?.id) {
@@ -93,9 +94,20 @@ export async function recoverToolResultMissing(
     content: "Operation cancelled by user (ESC pressed)",
   }))
 
+  const launchAgent = resumeConfig?.agent
+  const launchModel = resumeConfig?.model
+    ? { providerID: resumeConfig.model.providerID, modelID: resumeConfig.model.modelID }
+    : undefined
+  const launchVariant = resumeConfig?.model?.variant
+
   const promptInput = {
     path: { id: sessionID },
-    body: { parts: toolResultParts },
+    body: {
+      parts: toolResultParts,
+      ...(launchAgent ? { agent: launchAgent } : {}),
+      ...(launchModel ? { model: launchModel } : {}),
+      ...(launchVariant ? { variant: launchVariant } : {}),
+    },
   }
 
   try {