feat: upgrade LangChain to v1

package.json

@@ -1,7 +1,7 @@
 {
     "name": "@janole/code-bandit",
     "description": "Your AI-powered codebase companion that speaks your language",
-    "version": "0.3.19",
+    "version": "0.5.20",
     "author": "Jan Ole Suhr <ole@janole.com> (https://janole.com)",
     "homepage": "https://github.com/janole/code-bandit?#readme",
     "repository": {
@@ -47,7 +47,7 @@
         "lint": "eslint .",
         "lint:fix": "eslint --fix .",
         "ok": "npm run lint:fix && npm run typecheck",
-        "prebuild": "npm run genversion && patch-package && npm run ok",
+        "prebuild": "npm run genversion && npm run ok",
         "build": "rimraf dist && tsc -p tsconfig.dts.json && node esbuild.js",
         "genversion": "COMMIT_HASH=$(git rev-parse --short HEAD) && echo \"export const VERSION = \\\"${npm_package_version}\\\";\\nexport const COMMIT_HASH = \\\"${COMMIT_HASH}\\\";\" > src/.version.ts",
         "prepack": "npm run build"
@@ -57,20 +57,20 @@
         "LICENSE"
     ],
     "dependencies": {
-        "@langchain/anthropic": "^0.3.24",
-        "@langchain/core": "^0.3.62",
-        "@langchain/google-genai": "^0.2.14",
-        "@langchain/groq": "^0.2.3",
-        "@langchain/ollama": "^0.2.3",
-        "@langchain/openai": "^0.6.2",
+        "@langchain/anthropic": "^1.3.21",
+        "@langchain/core": "^1.1.29",
+        "@langchain/google-genai": "^2.1.22",
+        "@langchain/groq": "^1.1.3",
+        "@langchain/ollama": "^1.2.5",
+        "@langchain/openai": "^1.2.11",
         "chalk": "^5.4.1",
         "clipboardy": "^4.0.0",
         "commander": "^14.0.0",
         "execa": "^9.6.0",
         "fast-glob": "^3.3.3",
         "globby": "^14.1.0",
         "ink": "^6.0.1",
-        "langchain": "^0.3.29",
+        "langchain": "^1.2.28",
         "marked": "^15.0.12",
         "marked-terminal": "^7.3.0",
         "react": "^19.1.0",
@@ -97,7 +97,6 @@
         "eslint-plugin-simple-import-sort": "^12.1.1",
         "eslint-plugin-unicorn": "^61.0.1",
         "globals": "^16.3.0",
-        "patch-package": "^8.0.0",
         "rimraf": "^6.0.1",
         "typescript": "^5.8.3"
     }

src/ai/tools/clipboard-tools.ts

@@ -1,6 +1,7 @@
 import clipboard from "clipboardy";
 import { z } from "zod";
 
+import { TTools } from "./types.js";
 import { createTool } from "./utils.js";
 
 /**
@@ -29,9 +30,9 @@ const _tools = [
     }),
 ];
 
-function getTools()
+function getTools(): TTools
 {
-    return _tools.reduce((tools, t) => ({ ...tools, [t.name]: t }), {});
+    return _tools.reduce<TTools>((tools, t) => ({ ...tools, [t.name]: t }), {});
 }
 
 export { getTools };

src/ai/tools/git-tools.ts

@@ -3,6 +3,7 @@ import { execa } from "execa";
 import { z } from "zod";
 
 import tryCatch from "../../utils/try-catch.js";
+import { TTools } from "./types.js";
 import { createTool, formatEmptyToolOutput } from "./utils.js";
 
 async function execGit(args: string[] = [], options: { cwd?: string; timeout?: number; } = {}): Promise<string | null>
@@ -75,11 +76,11 @@ const _tools = [
     }),
 ];
 
-function getTools(props: { includeDestructiveTools?: boolean })
+function getTools(props: { includeDestructiveTools?: boolean }): TTools
 {
     return _tools
         .filter(t => props.includeDestructiveTools || !t.metadata?.["destructive"])
-        .reduce((tools, t) => ({ ...tools, [t.name]: t }), {});
+        .reduce<TTools>((tools, t) => ({ ...tools, [t.name]: t }), {});
 }
 
 export

src/ai/tools/npm-tools.ts

@@ -3,6 +3,7 @@ import { execa } from "execa";
 import { z } from "zod";
 
 import tryCatch from "../../utils/try-catch.js";
+import { TTools } from "./types.js";
 import { createTool, resolveWithinWorkDir } from "./utils.js";
 
 async function runNpm(args: string[] = [], config?: RunnableConfig, opts: { timeout?: number } = {}): Promise<string>
@@ -211,11 +212,11 @@ const _tools = [
     }),
 ];
 
-function getTools(props: { includeDestructiveTools?: boolean })
+function getTools(props: { includeDestructiveTools?: boolean }): TTools
 {
     return _tools
         .filter(t => props.includeDestructiveTools || !t.metadata?.["destructive"])
-        .reduce((tools, t) => ({ ...tools, [t.name]: t }), {} as Record<string, ReturnType<typeof createTool>>);
+        .reduce((tools, t) => ({ ...tools, [t.name]: t }), {});
 }
 
 export { getTools };

src/ai/tools/types.ts

@@ -1,4 +1,4 @@
-import { DynamicStructuredTool } from "langchain/tools";
+import { DynamicStructuredTool } from "@langchain/core/tools";
 
 import { IChatSession } from "../session/session.js";
 

src/ai/tools/utils.ts

@@ -1,5 +1,5 @@
 import { RunnableConfig } from "@langchain/core/runnables";
-import { tool } from "@langchain/core/tools";
+import { DynamicStructuredTool, tool } from "@langchain/core/tools";
 import { realpathSync } from "fs";
 import path from "path";
 
@@ -32,7 +32,7 @@ export function funcName(f: Function): string
 }
 
 /** create tool and automatically infer tool name from function */
-export function createTool(f: (p: any, config: RunnableConfig) => unknown, fields: Omit<Parameters<typeof tool>[1], "name">)
+export function createTool(f: (p: any, config: RunnableConfig) => unknown, fields: Omit<Parameters<typeof tool>[1], "name">): DynamicStructuredTool
 {
     return tool(f, { ...fields, name: funcName(f) });
 }