feat: add litellmProxy provider option for explicit LiteLLM compatibility (#8658)

Co-authored-by: Mark Henderson <Mark.Henderson99@hotmail.com>
Co-authored-by: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>

packages/opencode/test/session/llm.test.ts

@@ -0,0 +1,90 @@
+import { describe, expect, test } from "bun:test"
+import { LLM } from "../../src/session/llm"
+import type { ModelMessage } from "ai"
+
+describe("session.llm.hasToolCalls", () => {
+  test("returns false for empty messages array", () => {
+    expect(LLM.hasToolCalls([])).toBe(false)
+  })
+
+  test("returns false for messages with only text content", () => {
+    const messages: ModelMessage[] = [
+      {
+        role: "user",
+        content: [{ type: "text", text: "Hello" }],
+      },
+      {
+        role: "assistant",
+        content: [{ type: "text", text: "Hi there" }],
+      },
+    ]
+    expect(LLM.hasToolCalls(messages)).toBe(false)
+  })
+
+  test("returns true when messages contain tool-call", () => {
+    const messages = [
+      {
+        role: "user",
+        content: [{ type: "text", text: "Run a command" }],
+      },
+      {
+        role: "assistant",
+        content: [
+          {
+            type: "tool-call",
+            toolCallId: "call-123",
+            toolName: "bash",
+          },
+        ],
+      },
+    ] as ModelMessage[]
+    expect(LLM.hasToolCalls(messages)).toBe(true)
+  })
+
+  test("returns true when messages contain tool-result", () => {
+    const messages = [
+      {
+        role: "tool",
+        content: [
+          {
+            type: "tool-result",
+            toolCallId: "call-123",
+            toolName: "bash",
+          },
+        ],
+      },
+    ] as ModelMessage[]
+    expect(LLM.hasToolCalls(messages)).toBe(true)
+  })
+
+  test("returns false for messages with string content", () => {
+    const messages: ModelMessage[] = [
+      {
+        role: "user",
+        content: "Hello world",
+      },
+      {
+        role: "assistant",
+        content: "Hi there",
+      },
+    ]
+    expect(LLM.hasToolCalls(messages)).toBe(false)
+  })
+
+  test("returns true when tool-call is mixed with text content", () => {
+    const messages = [
+      {
+        role: "assistant",
+        content: [
+          { type: "text", text: "Let me run that command" },
+          {
+            type: "tool-call",
+            toolCallId: "call-456",
+            toolName: "read",
+          },
+        ],
+      },
+    ] as ModelMessage[]
+    expect(LLM.hasToolCalls(messages)).toBe(true)
+  })
+})

packages/opencode/test/session/message-v2.test.ts

@@ -569,4 +569,94 @@ describe("session.message-v2.toModelMessage", () => {
 
     expect(MessageV2.toModelMessage(input)).toStrictEqual([])
   })
+
+  test("converts pending/running tool calls to error results to prevent dangling tool_use", () => {
+    const userID = "m-user"
+    const assistantID = "m-assistant"
+
+    const input: MessageV2.WithParts[] = [
+      {
+        info: userInfo(userID),
+        parts: [
+          {
+            ...basePart(userID, "u1"),
+            type: "text",
+            text: "run tool",
+          },
+        ] as MessageV2.Part[],
+      },
+      {
+        info: assistantInfo(assistantID, userID),
+        parts: [
+          {
+            ...basePart(assistantID, "a1"),
+            type: "tool",
+            callID: "call-pending",
+            tool: "bash",
+            state: {
+              status: "pending",
+              input: { cmd: "ls" },
+              raw: "",
+            },
+          },
+          {
+            ...basePart(assistantID, "a2"),
+            type: "tool",
+            callID: "call-running",
+            tool: "read",
+            state: {
+              status: "running",
+              input: { path: "/tmp" },
+              time: { start: 0 },
+            },
+          },
+        ] as MessageV2.Part[],
+      },
+    ]
+
+    const result = MessageV2.toModelMessage(input)
+
+    expect(result).toStrictEqual([
+      {
+        role: "user",
+        content: [{ type: "text", text: "run tool" }],
+      },
+      {
+        role: "assistant",
+        content: [
+          {
+            type: "tool-call",
+            toolCallId: "call-pending",
+            toolName: "bash",
+            input: { cmd: "ls" },
+            providerExecuted: undefined,
+          },
+          {
+            type: "tool-call",
+            toolCallId: "call-running",
+            toolName: "read",
+            input: { path: "/tmp" },
+            providerExecuted: undefined,
+          },
+        ],
+      },
+      {
+        role: "tool",
+        content: [
+          {
+            type: "tool-result",
+            toolCallId: "call-pending",
+            toolName: "bash",
+            output: { type: "error-text", value: "[Tool execution was interrupted]" },
+          },
+          {
+            type: "tool-result",
+            toolCallId: "call-running",
+            toolName: "read",
+            output: { type: "error-text", value: "[Tool execution was interrupted]" },
+          },
+        ],
+      },
+    ])
+  })
 })