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add initial testing

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This commit is contained in:
William Jeynes
2026-01-27 22:57:49 +00:00
parent fdf8be2414
commit a3201d17a2
11 changed files with 742 additions and 5 deletions
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agent/.env.example
+1
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@@ -0,0 +1 @@
OPENAI_API_KEY=123456
agent/.gitignore
+2
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@@ -139,3 +139,5 @@ dist
vite.config.js.timestamp-*
vite.config.ts.timestamp-*
.vite/
# LangGraph API
.langgraph_api
agent/index.js
-1
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@@ -1 +0,0 @@
console.log("here")
agent/index.ts
+33
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@@ -0,0 +1,33 @@
import { addMessages, entrypoint } from "@langchain/langgraph";
import { type BaseMessage } from "@langchain/core/messages";
import { HumanMessage } from "@langchain/core/messages";
import { modelNode } from "./nodes/model";
import { toolNode } from "./nodes/tool";
import 'dotenv/config';
const agent = entrypoint({ name: "agent" }, async (messages: BaseMessage[]) => {
let modelResponse = await modelNode(messages);
while (true) {
if (!modelResponse.tool_calls?.length) {
break;
}
// Execute tools
const toolResults = await Promise.all(
modelResponse.tool_calls.map((toolCall) => toolNode(toolCall))
);
messages = addMessages(messages, [modelResponse, ...toolResults]);
modelResponse = await modelNode(messages);
}
return messages;
});
export {agent}
const result = await agent.invoke([new HumanMessage("Add 3 and 4.")]);
for (const message of result) {
console.log(`[${message.getType()}]: ${message.text}`);
}
agent/langgraph.json
+7
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@@ -0,0 +1,7 @@
{
"dependencies": ["."],
"graphs": {
"agent": "./index.ts:agent"
},
"env": ".env"
}
agent/nodes/model.ts
+21
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@@ -0,0 +1,21 @@
import { task, entrypoint } from "@langchain/langgraph";
import { BaseMessage, SystemMessage } from "@langchain/core/messages";
import { ChatOpenAI } from "@langchain/openai"
import { arithmeticTools } from "../tools/arithmetic";
const model = new ChatOpenAI({
model: "gpt-5-mini"
});
const modelWithTools = model.bindTools(arithmeticTools);
export const modelNode = task({ name: "callLlm" }, async (messages: BaseMessage[]) => {
return modelWithTools.invoke([
new SystemMessage(
"You are a helpful assistant tasked with performing arithmetic on a set of inputs."
),
...messages,
]);
});
agent/nodes/tool.ts
+8
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@@ -0,0 +1,8 @@
import type { ToolCall } from "@langchain/core/messages/tool";
import { task } from "@langchain/langgraph";
import { arithmeticToolsByName } from "../tools/arithmetic";
export const toolNode = task({ name: "callTool" }, async (toolCall: ToolCall) => {
const tool = arithmeticToolsByName[toolCall.name];
return tool.invoke(toolCall);
});
agent/package-lock.json
Generated
+598
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@@ -11,7 +11,13 @@
"dependencies": {
"@langchain/core": "^1.1.17",
"@langchain/langgraph": "^1.1.2",
"@langchain/langgraph-sdk": "^1.5.5",
"@langchain/openai": "^1.2.3",
"dotenv": "^17.2.3",
"langchain": "^1.2.14"
},
"devDependencies": {
"tsx": "^4.21.0"
}
},
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@@ -20,6 +26,448 @@
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@@ -155,6 +603,23 @@
"uuid": "dist-node/bin/uuid"
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"node_modules/eventemitter3": {
"version": "4.0.7",
"resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz",
"integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==",
"license": "MIT"
},
"node_modules/fsevents": {
"version": "2.3.3",
"resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
"integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
"dev": true,
"hasInstallScript": true,
"license": "MIT",
"optional": true,
"os": [
"darwin"
],
"engines": {
"node": "^8.16.0 || ^10.6.0 || >=11.0.0"
}
},
"node_modules/get-tsconfig": {
"version": "4.13.0",
"resolved": "https://registry.npmjs.org/get-tsconfig/-/get-tsconfig-4.13.0.tgz",
"integrity": "sha512-1VKTZJCwBrvbd+Wn3AOgQP/2Av+TfTCOlE4AcRJE72W1ksZXbAx8PPBR9RzgTeSPzlPMHrbANMH3LbltH73wxQ==",
"dev": true,
"license": "MIT",
"dependencies": {
"resolve-pkg-maps": "^1.0.0"
},
"funding": {
"url": "https://github.com/privatenumber/get-tsconfig?sponsor=1"
}
},
"node_modules/has-flag": {
"version": "4.0.0",
"resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
@@ -376,6 +923,27 @@
"mustache": "bin/mustache"
}
},
"node_modules/openai": {
"version": "6.16.0",
"resolved": "https://registry.npmjs.org/openai/-/openai-6.16.0.tgz",
"integrity": "sha512-fZ1uBqjFUjXzbGc35fFtYKEOxd20kd9fDpFeqWtsOZWiubY8CZ1NAlXHW3iathaFvqmNtCWMIsosCuyeI7Joxg==",
"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/p-finally": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
@@ -428,6 +996,16 @@
"node": ">=8"
}
},
"node_modules/resolve-pkg-maps": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/resolve-pkg-maps/-/resolve-pkg-maps-1.0.0.tgz",
"integrity": "sha512-seS2Tj26TBVOC2NIc2rOe2y2ZO7efxITtLZcGSOnHHNOQ7CkiUBfw0Iw2ck6xkIhPwLhKNLS8BO+hEpngQlqzw==",
"dev": true,
"license": "MIT",
"funding": {
"url": "https://github.com/privatenumber/resolve-pkg-maps?sponsor=1"
}
},
"node_modules/semver": {
"version": "7.7.3",
"resolved": "https://registry.npmjs.org/semver/-/semver-7.7.3.tgz",
@@ -458,6 +1036,26 @@
"node": ">=8"
}
},
"node_modules/tsx": {
"version": "4.21.0",
"resolved": "https://registry.npmjs.org/tsx/-/tsx-4.21.0.tgz",
"integrity": "sha512-5C1sg4USs1lfG0GFb2RLXsdpXqBSEhAaA/0kPL01wxzpMqLILNxIxIOKiILz+cdg/pLnOUxFYOR5yhHU666wbw==",
"dev": true,
"license": "MIT",
"dependencies": {
"esbuild": "~0.27.0",
"get-tsconfig": "^4.7.5"
},
"bin": {
"tsx": "dist/cli.mjs"
},
"engines": {
"node": ">=18.0.0"
},
"optionalDependencies": {
"fsevents": "~2.3.3"
}
},
"node_modules/uuid": {
"version": "10.0.0",
"resolved": "https://registry.npmjs.org/uuid/-/uuid-10.0.0.tgz",
agent/package.json
+9 -3
View File
@@ -4,14 +4,20 @@
"description": "Main project pipeline for identifying trigger events",
"license": "GPL-3.0",
"author": "Will Jeynes",
"type": "commonjs",
"main": "index.js",
"type": "module",
"main": "index.ts",
"scripts": {
"dev": "node index.js"
"dev": "tsx run.ts"
},
"dependencies": {
"@langchain/core": "^1.1.17",
"@langchain/langgraph": "^1.1.2",
"@langchain/langgraph-sdk": "^1.5.5",
"@langchain/openai": "^1.2.3",
"dotenv": "^17.2.3",
"langchain": "^1.2.14"
},
"devDependencies": {
"tsx": "^4.21.0"
}
}
agent/run.ts
+22
View File
@@ -0,0 +1,22 @@
import { Client } from "@langchain/langgraph-sdk";
// only set the apiUrl if you changed the default port when calling langgraph dev
const client = new Client({ apiUrl: "http://localhost:2024"});
const thread = await client.threads.create();
const streamResponse = client.runs.stream(
thread["thread_id"],
"agent",
{
input: [
{ role: "user", content: "3+5" }
],
streamMode: "messages-tuple",
}
);
for await (const chunk of streamResponse) {
console.log(`Receiving new event of type: ${chunk.event}...`);
console.log(JSON.stringify(chunk.data));
console.log("\n\n");
}
agent/tools/arithmetic.ts
+40
View File
@@ -0,0 +1,40 @@
import { tool } from "@langchain/core/tools";
import * as z from "zod";
// Define tools
const add = tool(({ a, b }) => a + b, {
name: "add",
description: "Add two numbers",
schema: z.object({
a: z.number().describe("First number"),
b: z.number().describe("Second number"),
}),
});
const multiply = tool(({ a, b }) => a * b, {
name: "multiply",
description: "Multiply two numbers",
schema: z.object({
a: z.number().describe("First number"),
b: z.number().describe("Second number"),
}),
});
const divide = tool(({ a, b }) => a / b, {
name: "divide",
description: "Divide two numbers",
schema: z.object({
a: z.number().describe("First number"),
b: z.number().describe("Second number"),
}),
});
// Augment the LLM with tools
export const arithmeticToolsByName = {
[add.name]: add,
[multiply.name]: multiply,
[divide.name]: divide,
};
export const arithmeticTools = Object.values(arithmeticToolsByName);