From 1833ebfbad53ff33e59b36b0b520155f131a38cc Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 13 Mar 2026 13:01:59 +0000
Subject: [PATCH 1/7] Initial plan


From cec98726e3c43fbda57ce2f0eb4f093f0cef7157 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 13 Mar 2026 13:07:13 +0000
Subject: [PATCH 2/7] Add OpenRouter support as fallback to Gemini in
 chatActions

Co-authored-by: na-trium-144 <100704180+na-trium-144@users.noreply.github.com>
---
 app/actions/chatActions.ts |  10 ++-
 app/actions/openrouter.ts  |  47 +++++++++++
 package-lock.json          | 158 ++++++-------------------------------
 3 files changed, 81 insertions(+), 134 deletions(-)
 create mode 100644 app/actions/openrouter.ts

diff --git a/app/actions/chatActions.ts b/app/actions/chatActions.ts
index 9efcb89..ad684e2 100644
--- a/app/actions/chatActions.ts
+++ b/app/actions/chatActions.ts
@@ -1,12 +1,20 @@
 "use server";
 
 // import { z } from "zod";
-import { generateContent } from "./gemini";
+import { generateContent as generateContentGemini } from "./gemini";
+import { generateContent as generateContentOpenRouter } from "./openrouter";
 import { DynamicMarkdownSection } from "../[lang]/[pageId]/pageContent";
 import { ReplCommand, ReplOutput } from "@my-code/runtime/interface";
 import { addChat, ChatWithMessages } from "@/lib/chatHistory";
 import { getPagesList, introSectionId, PagePath, SectionId } from "@/lib/docs";
 
+function generateContent(prompt: string, systemInstruction?: string) {
+  if (process.env.OPENROUTER_API_KEY && process.env.OPENROUTER_MODEL) {
+    return generateContentOpenRouter(prompt, systemInstruction);
+  }
+  return generateContentGemini(prompt, systemInstruction);
+}
+
 type ChatResult =
   | {
       error: string;
diff --git a/app/actions/openrouter.ts b/app/actions/openrouter.ts
new file mode 100644
index 0000000..ccb3d3a
--- /dev/null
+++ b/app/actions/openrouter.ts
@@ -0,0 +1,47 @@
+"use server";
+
+export async function generateContent(
+  prompt: string,
+  systemInstruction?: string
+): Promise<{ text: string }> {
+  const apiKey = process.env.OPENROUTER_API_KEY;
+  const model = process.env.OPENROUTER_MODEL;
+
+  if (!apiKey || !model) {
+    throw new Error(
+      "OPENROUTER_API_KEY and OPENROUTER_MODEL environment variables must be set"
+    );
+  }
+
+  const messages: { role: string; content: string }[] = [];
+  if (systemInstruction) {
+    messages.push({ role: "system", content: systemInstruction });
+  }
+  messages.push({ role: "user", content: prompt });
+
+  const response = await fetch("https://openrouter.ai/api/v1/chat/completions", {
+    method: "POST",
+    headers: {
+      Authorization: `Bearer ${apiKey}`,
+      "Content-Type": "application/json",
+    },
+    body: JSON.stringify({ model, messages }),
+  });
+
+  if (!response.ok) {
+    const errorText = await response.text();
+    throw new Error(
+      `OpenRouter API error: ${response.status} ${response.statusText} - ${errorText}`
+    );
+  }
+
+  const data = (await response.json()) as {
+    choices: { message: { content: string } }[];
+  };
+
+  const text = data.choices[0]?.message?.content;
+  if (!text) {
+    throw new Error("OpenRouterからの応答が空でした");
+  }
+  return { text };
+}
diff --git a/package-lock.json b/package-lock.json
index 2ee3504..c66f141 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1958,7 +1958,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1975,7 +1974,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1992,7 +1990,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2009,7 +2006,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2026,7 +2022,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2043,7 +2038,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2060,7 +2054,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2077,7 +2070,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2094,7 +2086,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2111,7 +2102,6 @@
       "cpu": [
         "ia32"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2128,7 +2118,6 @@
       "cpu": [
         "loong64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2145,7 +2134,6 @@
       "cpu": [
         "mips64el"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2162,7 +2150,6 @@
       "cpu": [
         "ppc64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2179,7 +2166,6 @@
       "cpu": [
         "riscv64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2196,7 +2182,6 @@
       "cpu": [
         "s390x"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2213,7 +2198,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2230,7 +2214,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2247,7 +2230,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2264,7 +2246,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2281,7 +2262,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2298,7 +2278,6 @@
       "cpu": [
         "ia32"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2315,7 +2294,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -4854,8 +4832,7 @@
       "optional": true,
       "os": [
         "android"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-android-arm64": {
       "version": "4.59.0",
@@ -4868,8 +4845,7 @@
       "optional": true,
       "os": [
         "android"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-darwin-arm64": {
       "version": "4.59.0",
@@ -4882,8 +4858,7 @@
       "optional": true,
       "os": [
         "darwin"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-darwin-x64": {
       "version": "4.59.0",
@@ -4896,8 +4871,7 @@
       "optional": true,
       "os": [
         "darwin"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-freebsd-arm64": {
       "version": "4.59.0",
@@ -4910,8 +4884,7 @@
       "optional": true,
       "os": [
         "freebsd"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-freebsd-x64": {
       "version": "4.59.0",
@@ -4924,8 +4897,7 @@
       "optional": true,
       "os": [
         "freebsd"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-arm-gnueabihf": {
       "version": "4.59.0",
@@ -4938,8 +4910,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-arm-musleabihf": {
       "version": "4.59.0",
@@ -4952,8 +4923,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-arm64-gnu": {
       "version": "4.59.0",
@@ -4966,8 +4936,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-arm64-musl": {
       "version": "4.59.0",
@@ -4980,8 +4949,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-loong64-gnu": {
       "version": "4.59.0",
@@ -4994,8 +4962,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-loong64-musl": {
       "version": "4.59.0",
@@ -5008,8 +4975,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-ppc64-gnu": {
       "version": "4.59.0",
@@ -5022,8 +4988,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-ppc64-musl": {
       "version": "4.59.0",
@@ -5036,8 +5001,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-riscv64-gnu": {
       "version": "4.59.0",
@@ -5050,8 +5014,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-riscv64-musl": {
       "version": "4.59.0",
@@ -5064,8 +5027,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-s390x-gnu": {
       "version": "4.59.0",
@@ -5078,8 +5040,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-x64-gnu": {
       "version": "4.59.0",
@@ -5092,8 +5053,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-linux-x64-musl": {
       "version": "4.59.0",
@@ -5106,8 +5066,7 @@
       "optional": true,
       "os": [
         "linux"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-openbsd-x64": {
       "version": "4.59.0",
@@ -5120,8 +5079,7 @@
       "optional": true,
       "os": [
         "openbsd"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-openharmony-arm64": {
       "version": "4.59.0",
@@ -5134,8 +5092,7 @@
       "optional": true,
       "os": [
         "openharmony"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-win32-arm64-msvc": {
       "version": "4.59.0",
@@ -5148,8 +5105,7 @@
       "optional": true,
       "os": [
         "win32"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-win32-ia32-msvc": {
       "version": "4.59.0",
@@ -5162,8 +5118,7 @@
       "optional": true,
       "os": [
         "win32"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-win32-x64-gnu": {
       "version": "4.59.0",
@@ -5176,8 +5131,7 @@
       "optional": true,
       "os": [
         "win32"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rollup/rollup-win32-x64-msvc": {
       "version": "4.59.0",
@@ -5190,8 +5144,7 @@
       "optional": true,
       "os": [
         "win32"
-      ],
-      "peer": true
+      ]
     },
     "node_modules/@rtsao/scc": {
       "version": "1.1.0",
@@ -13980,7 +13933,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14001,7 +13953,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14022,7 +13973,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14043,7 +13993,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14064,7 +14013,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14085,7 +14033,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14106,7 +14053,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14127,7 +14073,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14148,7 +14093,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14169,7 +14113,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14190,7 +14133,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -19441,7 +19383,6 @@
       "cpu": [
         "ppc64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19458,7 +19399,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19475,7 +19415,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19492,7 +19431,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19509,7 +19447,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19526,7 +19463,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19543,7 +19479,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19560,7 +19495,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19577,7 +19511,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19594,7 +19527,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19611,7 +19543,6 @@
       "cpu": [
         "ia32"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19628,7 +19559,6 @@
       "cpu": [
         "loong64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19645,7 +19575,6 @@
       "cpu": [
         "mips64el"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19662,7 +19591,6 @@
       "cpu": [
         "ppc64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19679,7 +19607,6 @@
       "cpu": [
         "riscv64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19696,7 +19623,6 @@
       "cpu": [
         "s390x"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19713,7 +19639,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19730,7 +19655,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19747,7 +19671,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19764,7 +19687,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19781,7 +19703,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19798,7 +19719,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19815,7 +19735,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19832,7 +19751,6 @@
       "cpu": [
         "ia32"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19849,7 +19767,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -20408,7 +20325,6 @@
       "os": [
         "aix"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20425,7 +20341,6 @@
       "os": [
         "android"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20442,7 +20357,6 @@
       "os": [
         "android"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20459,7 +20373,6 @@
       "os": [
         "android"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20476,7 +20389,6 @@
       "os": [
         "darwin"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20493,7 +20405,6 @@
       "os": [
         "darwin"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20510,7 +20421,6 @@
       "os": [
         "freebsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20527,7 +20437,6 @@
       "os": [
         "freebsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20544,7 +20453,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20561,7 +20469,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20578,7 +20485,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20595,7 +20501,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20612,7 +20517,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20629,7 +20533,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20646,7 +20549,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20663,7 +20565,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20680,7 +20581,6 @@
       "os": [
         "linux"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20697,7 +20597,6 @@
       "os": [
         "netbsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20714,7 +20613,6 @@
       "os": [
         "netbsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20731,7 +20629,6 @@
       "os": [
         "openbsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20748,7 +20645,6 @@
       "os": [
         "openbsd"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20765,7 +20661,6 @@
       "os": [
         "sunos"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20782,7 +20677,6 @@
       "os": [
         "win32"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20799,7 +20693,6 @@
       "os": [
         "win32"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20816,7 +20709,6 @@
       "os": [
         "win32"
       ],
-      "peer": true,
       "engines": {
         "node": ">=18"
       }

From 0e190c70b71ac89de6679293082e42155d1fd060 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 13 Mar 2026 13:56:14 +0000
Subject: [PATCH 3/7] Use openai SDK for OpenRouter integration instead of
 direct fetch

Co-authored-by: na-trium-144 <100704180+na-trium-144@users.noreply.github.com>
---
 app/actions/openrouter.ts | 31 ++++++++++---------------------
 package-lock.json         | 22 ++++++++++++++++++++++
 package.json              |  1 +
 3 files changed, 33 insertions(+), 21 deletions(-)

diff --git a/app/actions/openrouter.ts b/app/actions/openrouter.ts
index ccb3d3a..acc3cf0 100644
--- a/app/actions/openrouter.ts
+++ b/app/actions/openrouter.ts
@@ -1,5 +1,7 @@
 "use server";
 
+import OpenAI from "openai";
+
 export async function generateContent(
   prompt: string,
   systemInstruction?: string
@@ -13,33 +15,20 @@ export async function generateContent(
     );
   }
 
-  const messages: { role: string; content: string }[] = [];
+  const client = new OpenAI({
+    apiKey,
+    baseURL: "https://openrouter.ai/api/v1",
+  });
+
+  const messages: OpenAI.Chat.ChatCompletionMessageParam[] = [];
   if (systemInstruction) {
     messages.push({ role: "system", content: systemInstruction });
   }
   messages.push({ role: "user", content: prompt });
 
-  const response = await fetch("https://openrouter.ai/api/v1/chat/completions", {
-    method: "POST",
-    headers: {
-      Authorization: `Bearer ${apiKey}`,
-      "Content-Type": "application/json",
-    },
-    body: JSON.stringify({ model, messages }),
-  });
-
-  if (!response.ok) {
-    const errorText = await response.text();
-    throw new Error(
-      `OpenRouter API error: ${response.status} ${response.statusText} - ${errorText}`
-    );
-  }
-
-  const data = (await response.json()) as {
-    choices: { message: { content: string } }[];
-  };
+  const completion = await client.chat.completions.create({ model, messages });
 
-  const text = data.choices[0]?.message?.content;
+  const text = completion.choices[0]?.message?.content;
   if (!text) {
     throw new Error("OpenRouterからの応答が空でした");
   }
diff --git a/package-lock.json b/package-lock.json
index c66f141..8015909 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,6 +26,7 @@
         "js-yaml": "^4.1.1",
         "mocha": "^11.7.4",
         "next": "^15.5.11",
+        "openai": "^6.27.0",
         "pg": "^8.16.3",
         "prismjs": "^1.30.0",
         "react": "^19",
@@ -16407,6 +16408,27 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/openai": {
+      "version": "6.27.0",
+      "resolved": "https://registry.npmjs.org/openai/-/openai-6.27.0.tgz",
+      "integrity": "sha512-osTKySlrdYrLYTt0zjhY8yp0JUBmWDCN+Q+QxsV4xMQnnoVFpylgKGgxwN8sSdTNw0G4y+WUXs4eCMWpyDNWZQ==",
+      "license": "Apache-2.0",
+      "bin": {
+        "openai": "bin/cli"
+      },
+      "peerDependencies": {
+        "ws": "^8.18.0",
+        "zod": "^3.25 || ^4.0"
+      },
+      "peerDependenciesMeta": {
+        "ws": {
+          "optional": true
+        },
+        "zod": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/optionator": {
       "version": "0.9.4",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.4.tgz",
diff --git a/package.json b/package.json
index af5b2dc..bc1bcc0 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
     "js-yaml": "^4.1.1",
     "mocha": "^11.7.4",
     "next": "^15.5.11",
+    "openai": "^6.27.0",
     "pg": "^8.16.3",
     "prismjs": "^1.30.0",
     "react": "^19",

From 9a28d39e13805e240e968bb2b7a97568693a528c Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 13 Mar 2026 14:08:20 +0000
Subject: [PATCH 4/7] Consolidate gemini.ts and openrouter.ts into a single
 generateContent function

Co-authored-by: na-trium-144 <100704180+na-trium-144@users.noreply.github.com>
---
 app/actions/chatActions.ts | 10 +-------
 app/actions/gemini.ts      | 49 ++++++++++++++++++++++++++++++++++----
 app/actions/openrouter.ts  | 36 ----------------------------
 3 files changed, 46 insertions(+), 49 deletions(-)
 delete mode 100644 app/actions/openrouter.ts

diff --git a/app/actions/chatActions.ts b/app/actions/chatActions.ts
index ad684e2..9efcb89 100644
--- a/app/actions/chatActions.ts
+++ b/app/actions/chatActions.ts
@@ -1,20 +1,12 @@
 "use server";
 
 // import { z } from "zod";
-import { generateContent as generateContentGemini } from "./gemini";
-import { generateContent as generateContentOpenRouter } from "./openrouter";
+import { generateContent } from "./gemini";
 import { DynamicMarkdownSection } from "../[lang]/[pageId]/pageContent";
 import { ReplCommand, ReplOutput } from "@my-code/runtime/interface";
 import { addChat, ChatWithMessages } from "@/lib/chatHistory";
 import { getPagesList, introSectionId, PagePath, SectionId } from "@/lib/docs";
 
-function generateContent(prompt: string, systemInstruction?: string) {
-  if (process.env.OPENROUTER_API_KEY && process.env.OPENROUTER_MODEL) {
-    return generateContentOpenRouter(prompt, systemInstruction);
-  }
-  return generateContentGemini(prompt, systemInstruction);
-}
-
 type ChatResult =
   | {
       error: string;
diff --git a/app/actions/gemini.ts b/app/actions/gemini.ts
index 8dc7539..15fc63b 100644
--- a/app/actions/gemini.ts
+++ b/app/actions/gemini.ts
@@ -1,20 +1,56 @@
 "use server";
 
 import { GoogleGenAI } from "@google/genai";
+import OpenAI from "openai";
+
+export async function generateContent(
+  prompt: string,
+  systemInstruction?: string
+): Promise<{ text: string }> {
+  const openRouterApiKey = process.env.OPENROUTER_API_KEY;
+  const openRouterModel = process.env.OPENROUTER_MODEL;
+
+  if (openRouterApiKey && openRouterModel) {
+    const client = new OpenAI({
+      apiKey: openRouterApiKey,
+      baseURL: "https://openrouter.ai/api/v1",
+    });
+
+    const messages: OpenAI.Chat.ChatCompletionMessageParam[] = [];
+    if (systemInstruction) {
+      messages.push({ role: "system", content: systemInstruction });
+    }
+    messages.push({ role: "user", content: prompt });
+
+    const completion = await client.chat.completions.create({
+      model: openRouterModel,
+      messages,
+    });
+
+    const text = completion.choices[0]?.message?.content;
+    if (!text) {
+      throw new Error("OpenRouterからの応答が空でした");
+    }
+    return { text };
+  }
 
-export async function generateContent(prompt: string, systemInstruction?: string) {
   const params = {
     model: "gemini-2.5-flash",
     contents: prompt,
     config: {
       systemInstruction,
-    }
+    },
   };
 
   const ai = new GoogleGenAI({ apiKey: process.env.API_KEY! });
 
   try {
-    return await ai.models.generateContent(params);
+    const result = await ai.models.generateContent(params);
+    const text = result.text;
+    if (!text) {
+      throw new Error("Geminiからの応答が空でした");
+    }
+    return { text };
   } catch (e: unknown) {
     if (String(e).includes("User location is not supported")) {
       // For the new API, we can use httpOptions to set a custom baseUrl
@@ -24,7 +60,12 @@ export async function generateContent(prompt: string, systemInstruction?: string
           baseUrl: "https://gemini-proxy.utcode.net",
         },
       });
-      return await aiWithProxy.models.generateContent(params);
+      const result = await aiWithProxy.models.generateContent(params);
+      const text = result.text;
+      if (!text) {
+        throw new Error("Geminiからの応答が空でした");
+      }
+      return { text };
     } else {
       throw e;
     }
diff --git a/app/actions/openrouter.ts b/app/actions/openrouter.ts
deleted file mode 100644
index acc3cf0..0000000
--- a/app/actions/openrouter.ts
+++ /dev/null
@@ -1,36 +0,0 @@
-"use server";
-
-import OpenAI from "openai";
-
-export async function generateContent(
-  prompt: string,
-  systemInstruction?: string
-): Promise<{ text: string }> {
-  const apiKey = process.env.OPENROUTER_API_KEY;
-  const model = process.env.OPENROUTER_MODEL;
-
-  if (!apiKey || !model) {
-    throw new Error(
-      "OPENROUTER_API_KEY and OPENROUTER_MODEL environment variables must be set"
-    );
-  }
-
-  const client = new OpenAI({
-    apiKey,
-    baseURL: "https://openrouter.ai/api/v1",
-  });
-
-  const messages: OpenAI.Chat.ChatCompletionMessageParam[] = [];
-  if (systemInstruction) {
-    messages.push({ role: "system", content: systemInstruction });
-  }
-  messages.push({ role: "user", content: prompt });
-
-  const completion = await client.chat.completions.create({ model, messages });
-
-  const text = completion.choices[0]?.message?.content;
-  if (!text) {
-    throw new Error("OpenRouterからの応答が空でした");
-  }
-  return { text };
-}

From a259c8b9350119a3037ccedf1695864c6b8dbb79 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 13 Mar 2026 15:43:11 +0000
Subject: [PATCH 5/7] Support multiple OpenRouter models with semicolon
 separator and automatic fallback

Co-authored-by: na-trium-144 <100704180+na-trium-144@users.noreply.github.com>
---
 app/actions/gemini.ts | 32 ++++++++++++++++++++++----------
 1 file changed, 22 insertions(+), 10 deletions(-)

diff --git a/app/actions/gemini.ts b/app/actions/gemini.ts
index 15fc63b..50fe707 100644
--- a/app/actions/gemini.ts
+++ b/app/actions/gemini.ts
@@ -1,7 +1,6 @@
 "use server";
 
 import { GoogleGenAI } from "@google/genai";
-import OpenAI from "openai";
 
 export async function generateContent(
   prompt: string,
@@ -11,23 +10,36 @@ export async function generateContent(
   const openRouterModel = process.env.OPENROUTER_MODEL;
 
   if (openRouterApiKey && openRouterModel) {
-    const client = new OpenAI({
-      apiKey: openRouterApiKey,
-      baseURL: "https://openrouter.ai/api/v1",
-    });
+    // Support semicolon-separated list of models for automatic fallback via
+    // OpenRouter's `models` array parameter.
+    const models = openRouterModel.split(";").map((m) => m.trim()).filter(Boolean);
 
-    const messages: OpenAI.Chat.ChatCompletionMessageParam[] = [];
+    const messages: { role: string; content: string }[] = [];
     if (systemInstruction) {
       messages.push({ role: "system", content: systemInstruction });
     }
     messages.push({ role: "user", content: prompt });
 
-    const completion = await client.chat.completions.create({
-      model: openRouterModel,
-      messages,
+    const response = await fetch("https://openrouter.ai/api/v1/chat/completions", {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        Authorization: `Bearer ${openRouterApiKey}`,
+      },
+      body: JSON.stringify({ models, messages }),
     });
 
-    const text = completion.choices[0]?.message?.content;
+    if (!response.ok) {
+      const body = await response.text();
+      throw new Error(
+        `OpenRouter APIエラー: ${response.status} ${response.statusText} - ${body}`
+      );
+    }
+
+    const data = (await response.json()) as {
+      choices?: { message?: { content?: string | null } }[];
+    };
+    const text = data.choices?.[0]?.message?.content;
     if (!text) {
       throw new Error("OpenRouterからの応答が空でした");
     }

From f4cad2f598058b3e04a997425e6e0f3609fa6544 Mon Sep 17 00:00:00 2001
From: na-trium-144 <100704180+na-trium-144@users.noreply.github.com>
Date: Sat, 14 Mar 2026 00:46:57 +0900
Subject: [PATCH 6/7] =?UTF-8?q?openai=20sdk=E3=82=92=E5=89=8A=E9=99=A4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 package-lock.json | 180 ++++++++++++++++++++++++++++++++++------------
 package.json      |   1 -
 2 files changed, 133 insertions(+), 48 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 8015909..2ee3504 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,7 +26,6 @@
         "js-yaml": "^4.1.1",
         "mocha": "^11.7.4",
         "next": "^15.5.11",
-        "openai": "^6.27.0",
         "pg": "^8.16.3",
         "prismjs": "^1.30.0",
         "react": "^19",
@@ -1959,6 +1958,7 @@
       "cpu": [
         "arm"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1975,6 +1975,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1991,6 +1992,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2007,6 +2009,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2023,6 +2026,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2039,6 +2043,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2055,6 +2060,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2071,6 +2077,7 @@
       "cpu": [
         "arm"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2087,6 +2094,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2103,6 +2111,7 @@
       "cpu": [
         "ia32"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2119,6 +2128,7 @@
       "cpu": [
         "loong64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2135,6 +2145,7 @@
       "cpu": [
         "mips64el"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2151,6 +2162,7 @@
       "cpu": [
         "ppc64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2167,6 +2179,7 @@
       "cpu": [
         "riscv64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2183,6 +2196,7 @@
       "cpu": [
         "s390x"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2199,6 +2213,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2215,6 +2230,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2231,6 +2247,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2247,6 +2264,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2263,6 +2281,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2279,6 +2298,7 @@
       "cpu": [
         "ia32"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2295,6 +2315,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -4833,7 +4854,8 @@
       "optional": true,
       "os": [
         "android"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-android-arm64": {
       "version": "4.59.0",
@@ -4846,7 +4868,8 @@
       "optional": true,
       "os": [
         "android"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-darwin-arm64": {
       "version": "4.59.0",
@@ -4859,7 +4882,8 @@
       "optional": true,
       "os": [
         "darwin"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-darwin-x64": {
       "version": "4.59.0",
@@ -4872,7 +4896,8 @@
       "optional": true,
       "os": [
         "darwin"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-freebsd-arm64": {
       "version": "4.59.0",
@@ -4885,7 +4910,8 @@
       "optional": true,
       "os": [
         "freebsd"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-freebsd-x64": {
       "version": "4.59.0",
@@ -4898,7 +4924,8 @@
       "optional": true,
       "os": [
         "freebsd"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-arm-gnueabihf": {
       "version": "4.59.0",
@@ -4911,7 +4938,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-arm-musleabihf": {
       "version": "4.59.0",
@@ -4924,7 +4952,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-arm64-gnu": {
       "version": "4.59.0",
@@ -4937,7 +4966,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-arm64-musl": {
       "version": "4.59.0",
@@ -4950,7 +4980,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-loong64-gnu": {
       "version": "4.59.0",
@@ -4963,7 +4994,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-loong64-musl": {
       "version": "4.59.0",
@@ -4976,7 +5008,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-ppc64-gnu": {
       "version": "4.59.0",
@@ -4989,7 +5022,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-ppc64-musl": {
       "version": "4.59.0",
@@ -5002,7 +5036,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-riscv64-gnu": {
       "version": "4.59.0",
@@ -5015,7 +5050,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-riscv64-musl": {
       "version": "4.59.0",
@@ -5028,7 +5064,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-s390x-gnu": {
       "version": "4.59.0",
@@ -5041,7 +5078,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-x64-gnu": {
       "version": "4.59.0",
@@ -5054,7 +5092,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-x64-musl": {
       "version": "4.59.0",
@@ -5067,7 +5106,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-openbsd-x64": {
       "version": "4.59.0",
@@ -5080,7 +5120,8 @@
       "optional": true,
       "os": [
         "openbsd"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-openharmony-arm64": {
       "version": "4.59.0",
@@ -5093,7 +5134,8 @@
       "optional": true,
       "os": [
         "openharmony"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-win32-arm64-msvc": {
       "version": "4.59.0",
@@ -5106,7 +5148,8 @@
       "optional": true,
       "os": [
         "win32"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-win32-ia32-msvc": {
       "version": "4.59.0",
@@ -5119,7 +5162,8 @@
       "optional": true,
       "os": [
         "win32"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-win32-x64-gnu": {
       "version": "4.59.0",
@@ -5132,7 +5176,8 @@
       "optional": true,
       "os": [
         "win32"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-win32-x64-msvc": {
       "version": "4.59.0",
@@ -5145,7 +5190,8 @@
       "optional": true,
       "os": [
         "win32"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rtsao/scc": {
       "version": "1.1.0",
@@ -13934,6 +13980,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -13954,6 +14001,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -13974,6 +14022,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -13994,6 +14043,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14014,6 +14064,7 @@
       "cpu": [
         "arm"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14034,6 +14085,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14054,6 +14106,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14074,6 +14127,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14094,6 +14148,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14114,6 +14169,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -14134,6 +14190,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -16408,27 +16465,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/openai": {
-      "version": "6.27.0",
-      "resolved": "https://registry.npmjs.org/openai/-/openai-6.27.0.tgz",
-      "integrity": "sha512-osTKySlrdYrLYTt0zjhY8yp0JUBmWDCN+Q+QxsV4xMQnnoVFpylgKGgxwN8sSdTNw0G4y+WUXs4eCMWpyDNWZQ==",
-      "license": "Apache-2.0",
-      "bin": {
-        "openai": "bin/cli"
-      },
-      "peerDependencies": {
-        "ws": "^8.18.0",
-        "zod": "^3.25 || ^4.0"
-      },
-      "peerDependenciesMeta": {
-        "ws": {
-          "optional": true
-        },
-        "zod": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/optionator": {
       "version": "0.9.4",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.4.tgz",
@@ -19405,6 +19441,7 @@
       "cpu": [
         "ppc64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19421,6 +19458,7 @@
       "cpu": [
         "arm"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19437,6 +19475,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19453,6 +19492,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19469,6 +19509,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19485,6 +19526,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19501,6 +19543,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19517,6 +19560,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19533,6 +19577,7 @@
       "cpu": [
         "arm"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19549,6 +19594,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19565,6 +19611,7 @@
       "cpu": [
         "ia32"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19581,6 +19628,7 @@
       "cpu": [
         "loong64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19597,6 +19645,7 @@
       "cpu": [
         "mips64el"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19613,6 +19662,7 @@
       "cpu": [
         "ppc64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19629,6 +19679,7 @@
       "cpu": [
         "riscv64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19645,6 +19696,7 @@
       "cpu": [
         "s390x"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19661,6 +19713,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19677,6 +19730,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19693,6 +19747,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19709,6 +19764,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19725,6 +19781,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19741,6 +19798,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19757,6 +19815,7 @@
       "cpu": [
         "arm64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19773,6 +19832,7 @@
       "cpu": [
         "ia32"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -19789,6 +19849,7 @@
       "cpu": [
         "x64"
       ],
+      "dev": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -20347,6 +20408,7 @@
       "os": [
         "aix"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20363,6 +20425,7 @@
       "os": [
         "android"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20379,6 +20442,7 @@
       "os": [
         "android"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20395,6 +20459,7 @@
       "os": [
         "android"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20411,6 +20476,7 @@
       "os": [
         "darwin"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20427,6 +20493,7 @@
       "os": [
         "darwin"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20443,6 +20510,7 @@
       "os": [
         "freebsd"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20459,6 +20527,7 @@
       "os": [
         "freebsd"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20475,6 +20544,7 @@
       "os": [
         "linux"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20491,6 +20561,7 @@
       "os": [
         "linux"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20507,6 +20578,7 @@
       "os": [
         "linux"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20523,6 +20595,7 @@
       "os": [
         "linux"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20539,6 +20612,7 @@
       "os": [
         "linux"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20555,6 +20629,7 @@
       "os": [
         "linux"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20571,6 +20646,7 @@
       "os": [
         "linux"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20587,6 +20663,7 @@
       "os": [
         "linux"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20603,6 +20680,7 @@
       "os": [
         "linux"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20619,6 +20697,7 @@
       "os": [
         "netbsd"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20635,6 +20714,7 @@
       "os": [
         "netbsd"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20651,6 +20731,7 @@
       "os": [
         "openbsd"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20667,6 +20748,7 @@
       "os": [
         "openbsd"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20683,6 +20765,7 @@
       "os": [
         "sunos"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20699,6 +20782,7 @@
       "os": [
         "win32"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20715,6 +20799,7 @@
       "os": [
         "win32"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -20731,6 +20816,7 @@
       "os": [
         "win32"
       ],
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
diff --git a/package.json b/package.json
index bc1bcc0..af5b2dc 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,6 @@
     "js-yaml": "^4.1.1",
     "mocha": "^11.7.4",
     "next": "^15.5.11",
-    "openai": "^6.27.0",
     "pg": "^8.16.3",
     "prismjs": "^1.30.0",
     "react": "^19",

From f7185cd3e6460f0331c9e6f75cd54679461c6a1c Mon Sep 17 00:00:00 2001
From: na-trium-144 <100704180+na-trium-144@users.noreply.github.com>
Date: Sat, 14 Mar 2026 00:50:54 +0900
Subject: [PATCH 7/7] update readme

---
 README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 45763f8..eeb1aa7 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,8 @@ npx prisma dev
 ルートディレクトリに .env または .env.local という名前のファイルを作成し、以下の内容を記述
 ```dotenv
 API_KEY=GeminiAPIキー
+OPENROUTER_API_KEY=OpenRouterAPIキー
+OPENROUTER_MODEL=foo;bar
 BETTER_AUTH_URL=http://localhost:3000
 DATABASE_URL="postgres://... (prisma devの出力)"
 GOOGLE_CLIENT_ID=
@@ -26,7 +28,9 @@ GITHUB_CLIENT_ID=
 GITHUB_CLIENT_SECRET=
 ```
 
-* `API_KEY` はGeminiのAPIキーを作成して設定します。未設定の場合チャットが使えません
+* チャット用にGeminiのAPIキーまたはOpenRouterのAPIキーのいずれかが必要です。未設定の場合チャットが使えません
+    * OpenRouterを使う場合は使用するモデルをセミコロン区切りで `OPENROUTER_MODEL` に設定してください (エラー時に2番目以降にフォールバックします)
+    * 両方設定されている場合はOpenRouterが使われます
 * `GITHUB_CLIENT_ID` `GITHUB_CLIENT_SECRET` はGitHub OAuthのクライアントIDとシークレットを設定します。未設定の場合「GitHubでログイン」が使えません。
 作り方については https://www.better-auth.com/docs/authentication/github を参照
 * `GOOGLE_CLIENT_ID` `GOOGLE_CLIENT_SECRET` はGoogle OAuthのクライアントIDとシークレットを設定します。未設定の場合「Googleでログイン」が使えません。