feat: auto-repair reasoning_content for beam models and bump CLI version to 1.88.0 (v1.0.6) (#7)

- Support models requiring previous assistant reasoning_content in history (e.g. reflection/beam:free)
- Prevent HTTP 400 parameter errors in multi-turn assistant and agent workflows
- Update CLI_VERSION to 1.88.0 matching current npm release
- Unit tests added, 86 pass / 0 fail

Author: JoshRob297

CHANGELOG.md

@@ -5,6 +5,14 @@ Format: [Keep a Changelog](https://keepachangelog.com/en/1.1.0/) - SemVer.
 
 ## [Unreleased]
 
+## [1.0.6] - 2026-10-25
+
+### Added
+- Auto-repair for models requiring historical `reasoning_content` (such as `reflection/beam:free`). Prevents HTTP 400 parameter errors in multi-turn assistant and agent workflows by synthesizing compliant thoughts.
+
+### Changed
+- Updated tracked Command Code CLI version signature (`CLI_VERSION`) from `1.73.4` to `1.88.0`.
+
 ## [1.0.5] - 2026-10-24
 
 ### Changed

package.json

@@ -1,6 +1,6 @@
 {
   "name": "opencode-commandcode",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "description": "Production-grade OpenCode plugin for Command Code: dynamic model discovery, stability hooks and quota telemetry",
   "main": "index.ts",
   "type": "module",

src/client/api.ts

@@ -18,7 +18,7 @@ import { resolveApiKey, resolveApiKeyWithSource } from "../auth/resolver.ts";
 import { resolveStateDir } from "../hooks/resilience.ts";
 
 export const API_BASE = "https://api.commandcode.ai";
-export const CLI_VERSION = "1.73.4";
+export const CLI_VERSION = "1.88.0";
 
 const DEFAULT_TIMEOUT_MS = 10_000;
 const CATALOG_TTL_MS = 6 * 60 * 60 * 1000;

src/hooks/resilience.ts

@@ -105,7 +105,7 @@ export interface SanitizeResult {
  * 4. `null` / empty tool response content -> normalized to "{}".
  * 5. Assistant tool_calls with no answer in their block -> synthetic response.
  */
-export function sanitizeCommandCodeMessages(messages: Message[]): SanitizeResult {
+export function sanitizeCommandCodeMessages(messages: Message[], targetModel?: string): SanitizeResult {
   if (!Array.isArray(messages) || messages.length === 0) {
     return { messages: Array.isArray(messages) ? messages : [], modified: false, fixes: [] };
   }
@@ -225,6 +225,25 @@ export function sanitizeCommandCodeMessages(messages: Message[]): SanitizeResult
     }
   }
 
+  // 6. Inject reasoning_content for models requiring reasoning history (e.g. reflection/beam).
+  const requiresReasoning =
+    typeof targetModel === "string" &&
+    (targetModel.toLowerCase().includes("beam") || targetModel.toLowerCase().includes("reflection"));
+
+  if (requiresReasoning) {
+    for (let i = 0; i < finalMessages.length; i++) {
+      const msg = finalMessages[i]!;
+      if (msg.role === "assistant" && (!msg.reasoning_content || typeof msg.reasoning_content !== "string")) {
+        msg.reasoning_content =
+          typeof msg.content === "string" && msg.content.trim().length > 0
+            ? `Thought: ${msg.content.slice(0, 100)}`
+            : "Thought: Processing step";
+        fixes.push(`Injected missing reasoning_content at assistant message ${i} for ${targetModel}`);
+        modified = true;
+      }
+    }
+  }
+
   void syntheticCounter;
   return { messages: finalMessages, modified, fixes };
 }

src/index.ts

@@ -195,7 +195,8 @@ export default {
           }
           if (!Array.isArray(json.messages)) return;
 
-          const { messages, modified, fixes } = sanitizeCommandCodeMessages(json.messages);
+          const targetModel = typeof json.model === "string" ? json.model : undefined;
+          const { messages, modified, fixes } = sanitizeCommandCodeMessages(json.messages, targetModel);
           if (!modified) return;
 
           json.messages = messages;

tests/sanitizer.test.ts

@@ -210,3 +210,26 @@ describe("capExcessiveSleepCommand (unwired helper, kept for a future tool hook)
     expect(res.command).toBe("sleep 10 && ls");
   });
 });
+
+  test("injects synthetic reasoning_content on assistant messages when targetModel is reflection/beam", () => {
+    const messages = [
+      { role: "user", content: "hello" },
+      { role: "assistant", content: "I am assistant" },
+      { role: "user", content: "ping" },
+    ];
+    const res = sanitizeCommandCodeMessages(messages as any, "reflection/beam:free");
+    expect(res.modified).toBe(true);
+    expect(res.messages[1]?.reasoning_content).toBe("Thought: I am assistant");
+    expect(res.fixes.some((f) => f.includes("Injected missing reasoning_content"))).toBe(true);
+  });
+
+  test("does not inject reasoning_content when model is not reasoning-dependent", () => {
+    const messages = [
+      { role: "user", content: "hello" },
+      { role: "assistant", content: "I am assistant" },
+      { role: "user", content: "ping" },
+    ];
+    const res = sanitizeCommandCodeMessages(messages as any, "deepseek/deepseek-v4.1-flash");
+    expect(res.modified).toBe(false);
+    expect(res.messages[1]?.reasoning_content).toBeUndefined();
+  });