Add Agent with tools

README.md

@@ -13,15 +13,16 @@ chatwithdelta is the typescript version of the cli tool, based on the ui provide
 
 ```bash
 # First time only
-npm install 
+bun install 
 ```
 
 ```bash
 export EMAIL_TARGET="your_email"
 export SYSTEM_NAME="Delta"
 export UIUC_API_KEY="your_uiuc_api_key"
 export UIUC_COURSE_NAME="Delta-Documentation"
-npm run start
+export MODEL_URL="pre_hosted_uiuc.chat_llm_url"
+bun run start
 ```
 
 If you don't have an API key you can get one by creating an account at https://uiuc.chat and selecting the API tab were you can get your key. 

chatwithDelta/.env.template

@@ -0,0 +1,21 @@
+# Copy this file to .env and fill in the values
+# Used by the CLI app (Ink) inside chatwithDelta
+
+# Required
+[email protected]
+SYSTEM_NAME=Delta
+UIUC_COURSE_NAME=Delta-Documentation
+UIUC_API_KEY=uc_XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+MODEL_URL=https://llm.your_url/v1/
+
+# OpenAI-compatible auth (used for pre-hosted model calls)
+# If your MODEL_URL is OpenAI-compatible, set this key
+OPENAI_API_KEY=sk-XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
+# Notes:
+# - The app loads env from chatwithDelta/.env when running via `bun dev|start|build`.
+# - MODEL_URL should point to an OpenAI-compatible endpoint base.
+#   Examples:
+#     https://api.openai.com/v1
+#     https://llm.uiuc.edu/v1
+# - UIUC_API_KEY is required for the UIUC docs search endpoint.

chatwithDelta/package.json

@@ -5,37 +5,51 @@
     "bin": "dist/index.js",
     "type": "module",
     "engines": {
-        "node": ">=16"
+        "node": ">=16",
+        "bun": ">=1.0.0"
     },
     "scripts": {
-        "dev": "ts-node-dev -r tsconfig-paths/register --respawn --no-pretty --exit-child src/index.tsx",
-        "build": "tsc && chmod +x dist/index.js",
-        "start": "npm run build && node dist/index.js",
-        "pretest": "npm run build"
+        "build": "bun build --target bun index.tsx --outdir dist",
+        "start": "bun run src/index.tsx",
+        "dev": "bun --watch src/index.tsx",
+        "pretest": "bun run build"
     },
     "dependencies": {
+        "@langchain/community": "^0.3.47",
+        "@langchain/core": "^0.3.61",
+        "@langchain/langgraph": "^0.3.5",
         "@react-email/render": "^1.1.2",
+        "@types/better-sqlite3": "^7.6.13",
+        "better-sqlite3": "^11.10.0",
         "ink": "^4.0.0",
         "ink-select-input": "^6.2.0",
         "ink-text-input": "^5.0.0",
+        "langchain": "^0.3.29",
         "marked": "^15.0.12",
         "marked-terminal": "^7.3.0",
         "meow": "^9.0.0",
         "nodemailer": "^6.10.1",
         "openai": "^3.2.1",
-        "react": "^18.0.0",
-        "react-dom": "^18.2.0",
-        "zod": "^3.21.4"
+        "react-devtools-core": "^4.0.0",
+        "zod": "^4.0.0"
+    },
+    "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
     },
     "devDependencies": {
+        "@types/ink": "^0.5.2",
+        "@types/ink-select-input": "^3.0.5",
+        "@types/marked-terminal": "^6.1.1",
         "@types/node": "^18.15.11",
         "@types/nodemailer": "^6.4.17",
-        "@types/react": "^18.0.31",
+        "@types/react": "^18.3.23",
+        "bun-types": "^1.2.18",
         "eslint-plugin-react": "^7.32.2",
         "eslint-plugin-react-hooks": "^4.6.0",
         "ink-testing-library": "^3.0.0",
         "ts-node-dev": "^2.0.0",
         "tsconfig-paths": "^4.2.0",
         "typescript": "^5.0.3"
     }
-}
+}

chatwithDelta/src/config/env.ts

@@ -0,0 +1,25 @@
+import { z } from 'zod';
+
+const envSchema = z.object({
+  EMAIL_TARGET: z.string().email(),
+  SYSTEM_NAME: z.string(),
+  UIUC_API_KEY: z.string(),
+  UIUC_COURSE_NAME: z.string(),
+});
+
+// Log current environment variables
+console.log('Current environment variables:');
+console.log('EMAIL_TARGET:', process.env['EMAIL_TARGET']);
+console.log('SYSTEM_NAME:', process.env['SYSTEM_NAME']);
+console.log('UIUC_COURSE_NAME:', process.env['UIUC_COURSE_NAME']);
+console.log('UIUC_API_KEY:', process.env['UIUC_API_KEY'] ? '***' : 'not set');
+
+// Only set defaults if environment variables are not already set
+if (!process.env['SYSTEM_NAME']) process.env['SYSTEM_NAME'] = 'Delta';
+if (!process.env['UIUC_COURSE_NAME']) process.env['UIUC_COURSE_NAME'] = 'Delta-Documentation';
+if (!process.env['EMAIL_TARGET']) process.env['EMAIL_TARGET'] = '[email protected]';
+
+/**
+ * Parsed environment variables.
+ */
+export const env = envSchema.parse(process.env);

chatwithDelta/src/env.ts

@@ -5,14 +5,25 @@ const envSchema = z.object({
   SYSTEM_NAME: z.string(),
   UIUC_API_KEY: z.string(),
   UIUC_COURSE_NAME: z.string(),
+  MODEL_URL: z.string(),
 });
 
-// Default value if not set by env variable
-process.env['SYSTEM_NAME'] = 'Delta';
-process.env['UIUC_COURSE_NAME'] = 'Delta-Documentation';
-process.env['EMAIL_TARGET'] = '[email protected]';
+// Set default environment variables if not already set
+if (!process.env['UIUC_COURSE_NAME']) process.env['UIUC_COURSE_NAME'] = 'Delta-Documentation';
+if (!process.env['SYSTEM_NAME']) process.env['SYSTEM_NAME'] = 'Delta';
+if (!process.env['EMAIL_TARGET']) process.env['EMAIL_TARGET'] = '[email protected]';
+
+
+// Log current environment variables
+console.log('Current environment variables:');
+console.log('EMAIL_TARGET:', process.env['EMAIL_TARGET']);
+console.log('SYSTEM_NAME:', process.env['SYSTEM_NAME']);
+console.log('UIUC_COURSE_NAME:', process.env['UIUC_COURSE_NAME']);
+console.log('UIUC_API_KEY:', process.env['UIUC_API_KEY'] ? '***' : 'not set');
+console.log('MODEL_URL:', process.env['MODEL_URL'] ? '***' : 'not set');
 
 /**
  * Parsed environment variables.
  */
+
 export const env = envSchema.parse(process.env);

chatwithDelta/src/types/marked-terminal.d.ts

@@ -0,0 +1,43 @@
+declare module 'marked-terminal' {
+    interface TerminalRendererOptions {
+        code?: string;
+        blockquote?: string;
+        html?: string;
+        heading?: string;
+        firstHeading?: string;
+        hr?: string;
+        listitem?: string;
+        table?: string;
+        strong?: string;
+        em?: string;
+        codespan?: string;
+        del?: string;
+        link?: string;
+        href?: string;
+    }
+
+    class TerminalRenderer {
+        constructor(options?: TerminalRendererOptions);
+        code(code: string, language?: string): string;
+        blockquote(quote: string): string;
+        html(html: string): string;
+        heading(text: string, level: number): string;
+        hr(): string;
+        list(body: string, ordered: boolean): string;
+        listitem(text: string): string;
+        paragraph(text: string): string;
+        table(header: string, body: string): string;
+        tablerow(content: string): string;
+        tablecell(content: string, flags: { header: boolean; align?: string }): string;
+        strong(text: string): string;
+        em(text: string): string;
+        codespan(text: string): string;
+        br(): string;
+        del(text: string): string;
+        link(href: string, title: string, text: string): string;
+        image(href: string, title: string, text: string): string;
+        text(text: string): string;
+    }
+
+    export = TerminalRenderer;
+} 

chatwithDelta/src/types/ui.ts

@@ -0,0 +1,4 @@
+export type ChatMessageT = {
+    role: "user" | "assistant" | "system";
+    content: string;
+}