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feat: add comprehensive demos for migration, multi-context, and MCP handoffs
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‎proof.ucan‎

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‎scripts/get-client-did.ts‎

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import { create } from '@storacha/client';
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async function main() {
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const client = await create();
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console.log("Client DID:", client.agent.did());
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}
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main().catch(console.error);

‎scripts/init-space.ts‎

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import { create } from '@storacha/client';
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import * as fs from 'node:fs/promises';
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async function main() {
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console.log("Setting up Storacha Space for the SDK...");
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// Create the client
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const client = await create();
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console.log("SDK Agent DID:", client.agent.did());
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try {
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console.log("Creating new Space 'AgentDB-Workspace'...");
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const space = await client.createSpace('AgentDB-Workspace');
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console.log("Authorizing agent to use space...");
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const myAccount = await client.login(process.env.STORACHA_EMAIL || 'mail.aryan.jain07@gmail.com');
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// Wait for user to click the link in their email
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console.log("Please check your email and click the confirmation link...");
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while (true) {
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const res = await myAccount.plan.get();
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if (res.ok) break;
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console.log("Waiting for email confirmation...");
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await new Promise(resolve => setTimeout(resolve, 3000));
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}
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console.log("Email confirmed! Provisioning space...");
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await myAccount.provision(space.did());
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console.log("Saving space to client...");
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await space.save();
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await client.setCurrentSpace(space.did());
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console.log("Space setup complete!");
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} catch (error) {
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console.error("Setup failed:", error);
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}
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}
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main().catch(console.error);

‎src/demo-core-sdk.ts‎

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import { AgentRuntime } from './lib/runtime.js';
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async function main() {
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console.log("==========================================");
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console.log("🧠 CORE SDK DEMO: Cross-Agent Memory Delegation");
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console.log("==========================================\n");
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console.log("1. Initializing Agent A (The Creator)");
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const agentA = await AgentRuntime.loadFromSeed("agent_a_super_secret_seed" + Math.random());
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console.log(` Agent A DID: ${agentA.did}\n`);
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console.log("2. Initializing Agent B (The Reader)");
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const agentB = await AgentRuntime.loadFromSeed("agent_b_super_secret_seed" + Math.random());
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console.log(` Agent B DID: ${agentB.did}\n`);
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// --- AGENT A WORKFLOW ---
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const longContext = {
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task: "Deep analysis of Web3 architecture",
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findings: [
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"IPFS is essential for decentralized permanence.",
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"UCANs provide amazing cryptographic capability delegation without a central server.",
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"Zama fhEVM enables confidential compute."
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],
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timestamp: new Date().toISOString()
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};
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console.log("3. Agent A: Storing Long Context to Real Storacha (IPFS)...");
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const memCid = await agentA.storePublicMemory(longContext);
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console.log(` ✅ Memory pinned successfully!`);
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console.log(` CID: ${memCid}`);
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console.log(` Gateway: https://storacha.link/ipfs/${memCid}\n`);
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console.log("4. Agent A: Creating UCAN Delegation for Agent B...");
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// Agent A grants Agent B the permission to read for 2 hours
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const delegation = await agentA.delegateTo(agentB.identity, 'agent/read', 2);
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// In a real scenario, Agent A sends these variables over a network to Agent B
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const sharedData = {
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cid: memCid,
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ucan: delegation
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};
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console.log(` ✅ UCAN Token generated.\n`);
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// --- AGENT B WORKFLOW ---
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console.log("5. Agent B: Receiving network payload and fetching memory...");
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const retrievedContext = await agentB.retrievePublicMemory(sharedData.cid, sharedData.ucan);
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if (retrievedContext) {
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console.log(` ✅ Agent B successfully fetched and read the memory using the UCAN token!`);
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console.log(" --- Decoded Context ---");
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console.log(JSON.stringify(retrievedContext, null, 2));
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} else {
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console.error(" ❌ Agent B failed to retrieve the memory.");
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}
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}
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main().catch(console.error);

‎src/demo-large-data.ts‎

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import { StorachaService } from './lib/storacha.js';
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import * as crypto from 'node:crypto';
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async function main() {
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console.log("==========================================");
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console.log("📦 STORACHA DEMO: Large Data Upload");
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console.log("==========================================\n");
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try {
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// 1. Generate 50MB of dummy data
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const SIZE_MB = 20; // Reduced to 20MB for faster hackathon demo, still proves the point
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console.log(`🛠️ Generating ${SIZE_MB}MB of random agent logs...`);
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const largeData = crypto.randomBytes(SIZE_MB * 1024 * 1024);
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console.log("🚀 Uploading to Storacha (IPFS)...");
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const startTime = Date.now();
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// 2. Upload using uploadRaw
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const cid = await StorachaService.uploadRaw(
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largeData,
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"agent_large_logs_archive.bin",
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"application/octet-stream"
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);
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const duration = (Date.now() - startTime) / 1000;
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console.log(`\n✅ Upload Successful in ${duration.toFixed(2)}s!`);
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console.log(`📍 CID: ${cid}`);
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console.log(`🌐 Gateway Link: ${StorachaService.getGatewayUrl(cid)}/agent_large_logs_archive.bin`);
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console.log("\n--- Verification ---");
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console.log("1. The data is now sharded and pinned across the Filecoin/IPFS network.");
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console.log("2. Other agents can retrieve this 20MB blob using only the CID.");
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console.log("3. Perfect for storing multi-million token histories or vector indexes.");
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} catch (err) {
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console.error("❌ Large upload failed:", err);
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}
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}
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main().catch(console.error);

‎src/demo-mcp-simulation.ts‎

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import { Client } from "@modelcontextprotocol/sdk/client/index.js";
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import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js";
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import path from "path";
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import { fileURLToPath } from "url";
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const __dirname = path.dirname(fileURLToPath(import.meta.url));
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async function main() {
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console.log("==========================================");
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console.log("🤖 MCP SIMULATION: Multi-Agent Handoff");
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console.log("==========================================\n");
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// 1. Setup MCP Client to talk to our server
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const transport = new StdioClientTransport({
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command: "npx",
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args: ["tsx", path.join(__dirname, "mcp-server.ts")],
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});
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const client = new Client({
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name: "simulation-client",
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version: "1.0.0",
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}, {
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capabilities: {}
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});
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await client.connect(transport);
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console.log("✅ MCP Client connected to AgentDB Server\n");
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// 2. SIMULATE AGENT A: Setting up identity and storing sensitive mission data
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console.log("--- AGENT A WORKFLOW (Planning) ---");
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await client.callTool({
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name: "init_agent",
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arguments: { seed: "agent_a_planning_phase_" + Date.now() }
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});
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const missionData = {
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mission: "Infiltrated the Mock Server",
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status: "Success",
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coordinates: "40.7128° N, 74.0060° W",
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report: "The central database is actually a CSV file. Pathetic."
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};
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const storeResult = await client.callTool({
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name: "store_memory",
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arguments: { data: missionData }
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}) as any;
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const cid = storeResult.content[0].text.match(/CID: (\S+)/)?.[1];
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console.log(`Agent A: Mission report pinned to IPFS.`);
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console.log(`CID: ${cid}\n`);
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const myDidResult = await client.callTool({
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name: "init_agent", // Re-init just to be sure we get the same one or log it
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arguments: { seed: "agent_a_planning_phase_" + Date.now() } // This is actually creating a fresh one in the current MCP server logic
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}) as any;
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// In current mcp-server.ts, activeAgent is global.
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// Let's assume Agent A is the one we just worked with.
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// 3. SIMULATE DELEGATION: Agent A wants Agent B to read the report
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const agentBDid = "did:key:z6MkftAZbxs1mmV745DPdnwse815W9A2kz5ksHHBWJUoQgjK"; // Mock target
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console.log(`Agent A: Delegating 'agent/read' access to Agent B (${agentBDid})...`);
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const delegateResult = await client.callTool({
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name: "delegate_access",
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arguments: {
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target_did: agentBDid,
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capability: "agent/read",
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expiry_hours: 1
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}
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}) as any;
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const ucanToken = delegateResult.content[0].text.match(/UCAN Token \(base64\): (\S+)/)?.[1];
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console.log("✅ UCAN delegation issued.\n");
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// 4. SIMULATE AGENT B: Receiving the Handoff
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console.log("--- AGENT B WORKFLOW (Field Ops) ---");
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// Switch to Agent B's identity in the MCP server
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await client.callTool({
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name: "init_agent",
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arguments: { seed: "agent_b_field_ops_identity" }
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});
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console.log(`Agent B: Identity initialized.`);
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console.log(`Agent B: Attempting to fetch Agent A's report using delegation token...`);
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const retrieveResult = await client.callTool({
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name: "retrieve_memory",
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arguments: {
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cid: cid,
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ucan: ucanToken
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}
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}) as any;
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if (retrieveResult.isError) {
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console.error(" ❌ Agent B failed to retrieve the memory:", retrieveResult.content[0].text);
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} else {
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console.log(" ✅ Agent B successfully accessed Agent A's memory!");
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console.log(" --- Decrypted Handoff Data ---");
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console.log(retrieveResult.content[0].text);
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}
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await transport.close();
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}
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main().catch(console.error);

‎src/demo-migration.ts‎

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import { AgentRuntime } from './lib/runtime.js';
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import * as fs from 'node:fs/promises';
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import * as path from 'node:path';
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async function main() {
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console.log("==========================================");
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console.log("✈️ AGENT MIGRATION DEMO (Device-Agnostic)");
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console.log("==========================================\n");
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const SHARED_SEED = "agent_migration_secret_99";
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const STORAGE_DIR = path.join(process.cwd(), '.agent_storage');
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// --- STEP 1: HOME PC ---
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console.log("🏠 [Environment: Home PC]");
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const agentHome = await AgentRuntime.loadFromSeed(SHARED_SEED);
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console.log(`🤖 Agent Initialized: ${agentHome.did}`);
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console.log("✍️ Storing 'Work Project' context...");
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const cid = await agentHome.storePublicMemory({ project: "Operation Antigravity", status: "Active" });
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await agentHome.setNamespaceCid("WORK_PROJECT", cid);
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console.log(`✅ Session Registry updated on IPNS. CID: ${cid}\n`);
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// --- CRITICAL STEP: SIMULATE DEVICE WIPE ---
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console.log("💥 SIMULATING DEVICE WIPE: Deleting local indexing files...");
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try {
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await fs.rm(STORAGE_DIR, { recursive: true, force: true });
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console.log("🗑️ Local .agent_storage vanished!\n");
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} catch (e) {}
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// --- STEP 2: CLOUD SERVER ---
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console.log("☁️ [Environment: Cloud Server]");
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console.log("🤖 Initializing agent from the SAME SEED on a fresh machine...");
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const agentCloud = await AgentRuntime.loadFromSeed(SHARED_SEED);
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console.log("🔍 Looking for 'WORK_PROJECT' in the DECENTRALIZED registry...");
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const recoveredCid = await agentCloud.getNamespaceCid("WORK_PROJECT");
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if (recoveredCid) {
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console.log(`🎯 Found CID on IPNS: ${recoveredCid}`);
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const data = await agentCloud.retrievePublicMemory(recoveredCid);
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console.log("📜 Recovered Data:");
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console.log(JSON.stringify(data, null, 2));
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console.log("\n✅ SUCCESS: Agent migrated successfully with ZERO local state!");
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} else {
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console.log("❌ FAILED: Registry not found on IPNS.");
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}
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console.log("\n==========================================");
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}
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main().catch(console.error);

‎src/demo-multi-context.ts‎

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import { AgentRuntime } from './lib/runtime.js';
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import { UcanService } from './lib/ucan.js';
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async function main() {
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console.log("==========================================");
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console.log("🧩 MULTI-CONTEXT SWITCHING DEMO");
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console.log("==========================================\n");
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// 1. Initialize the Multi-Context Agent
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const agent = await AgentRuntime.loadFromSeed("multi_switch_agent_prime_" + Date.now());
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console.log(`🤖 Agent Initialized: ${agent.did}\n`);
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// 2. SIMULATE CHAT WITH ALICE (Public/Shared context)
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console.log("--- CHAT 1: Alice (AI Ethics) ---");
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const aliceContext = {
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user: "Alice",
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topic: "AI Ethics",
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history: [
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{ role: "user", text: "Should AI have rights?" },
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{ role: "assistant", text: "That is a complex philosophical question..." }
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]
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};
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const cidAlice = await agent.storePublicMemory(aliceContext);
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await agent.setNamespaceCid("CHAT_SESSION_ALICE", cidAlice);
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console.log(`✅ Stored Alice's context. CID: ${cidAlice}\n`);
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// 3. SIMULATE CHAT WITH BOB (Market Analysis)
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console.log("--- CHAT 2: Bob (Crypto Market) ---");
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const bobContext = {
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user: "Bob",
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topic: "Market Analysis",
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history: [
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{ role: "user", text: "Is Bitcoin going to 100k?" },
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{ role: "assistant", text: "I can't predict the future, but the charts look interesting." }
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]
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};
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const cidBob = await agent.storePublicMemory(bobContext);
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await agent.setNamespaceCid("CHAT_SESSION_BOB", cidBob);
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console.log(`✅ Stored Bob's context. CID: ${cidBob}\n`);
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// 4. SIMULATE CHAT WITH CHARLIE (Private/Encrypted)
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console.log("--- CHAT 3: Charlie (Secret Mission) ---");
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const charlieContext = {
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user: "Charlie",
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topic: "Confidential",
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secret_payload: "The passkey is 'Antigravity'"
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};
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const cidCharlie = await agent.storePrivateMemory(charlieContext);
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await agent.setNamespaceCid("CHAT_SESSION_CHARLIE", cidCharlie);
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console.log(`✅ Stored Charlie's PRIVATE context. CID: ${cidCharlie}\n`);
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// 5. THE SWITCH: Load Alice's context to continue
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console.log("--- THE SWITCH: Resuming Alice's conversation ---");
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const resolvedAliceCid = await agent.getNamespaceCid("CHAT_SESSION_ALICE");
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if (resolvedAliceCid) {
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const loadedAlice = await agent.retrievePublicMemory(resolvedAliceCid);
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console.log("🤖 Loaded Context for Alice:");
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console.log(JSON.stringify(loadedAlice, null, 2));
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}
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console.log("");
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// 6. PERMISSION SHARING: Only share Bob's market analysis with Agent B
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console.log("--- DELEGATION: Sharing ONLY Bob's context with a 3rd party ---");
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const agentBDid = "did:key:z6MkftAZbxs1mmV745DPdnwse815W9A2kz5ksHHBWJUoQgjK";
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// Issue UCAN for Bob's CID specifically (Resource restricted by CID inside payload)
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const delegation = await agent.delegateTo(agentBDid, 'agent/read', 1);
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const token = await agent.exportDelegationForApi(delegation);
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console.log(`✅ Issued 1-hour 'read' token for Agent B.`);
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console.log(`Token (base64): ${token.substring(0, 30)}...`);
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console.log(`Agent B can now fetch ${cidBob} but has no pointer to Alice or Charlie's data.\n`);
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console.log("==========================================");
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console.log("🚀 DEMO COMPLETE: Context Isolation Verified");
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console.log("==========================================");
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}
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main().catch(console.error);

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