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<h1 id="tutorial-2-basic-agents"><a class="header" href="#tutorial-2-basic-agents">Tutorial 2: Basic Agents</a></h1>
<p>Learn how to register agents and execute tasks.</p>
<h2 id="prerequisites"><a class="header" href="#prerequisites">Prerequisites</a></h2>
<ul>
<li>Complete <a href="01-getting-started.html">01-getting-started.md</a></li>
<li>VAPORA built: <code>cargo build</code></li>
</ul>
<h2 id="learning-objectives"><a class="header" href="#learning-objectives">Learning Objectives</a></h2>
<ul>
<li>Register agents in the agent registry</li>
<li>Define agent capabilities and metadata</li>
<li>Execute agent tasks</li>
<li>Query agent status</li>
</ul>
<h2 id="step-1-create-agent-registry"><a class="header" href="#step-1-create-agent-registry">Step 1: Create Agent Registry</a></h2>
<p>An <code>AgentRegistry</code> manages all registered agents.</p>
<pre><pre class="playground"><code class="language-rust"><span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>use vapora_agents::AgentRegistry;
let registry = AgentRegistry::new(10); // capacity: 10 agents
<span class="boring">}</span></code></pre></pre>
<h2 id="step-2-define-agent-metadata"><a class="header" href="#step-2-define-agent-metadata">Step 2: Define Agent Metadata</a></h2>
<p>Each agent has a role, capabilities, and LLM provider.</p>
<pre><pre class="playground"><code class="language-rust"><span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>use vapora_agents::{AgentMetadata, AgentStatus};
let agent = AgentMetadata::new(
"developer".to_string(), // role
"Developer Alice".to_string(), // name
"claude".to_string(), // provider
"claude-opus-4-5".to_string(), // model
vec!["coding".to_string(), "testing".to_string()], // capabilities
);
<span class="boring">}</span></code></pre></pre>
<h2 id="step-3-register-agent"><a class="header" href="#step-3-register-agent">Step 3: Register Agent</a></h2>
<p>Add the agent to the registry.</p>
<pre><pre class="playground"><code class="language-rust"><span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>let agent_id = registry.register_agent(agent)?;
println!("Agent registered: {}", agent_id);
<span class="boring">}</span></code></pre></pre>
<h2 id="step-4-query-registry"><a class="header" href="#step-4-query-registry">Step 4: Query Registry</a></h2>
<p>List all agents or get specific agent.</p>
<pre><pre class="playground"><code class="language-rust"><span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>// Get all agents
let all_agents = registry.list_all();
// Get specific agent
let agent = registry.get_agent(&amp;agent_id)?;
println!("Agent status: {:?}", agent.status);
<span class="boring">}</span></code></pre></pre>
<h2 id="running-the-example"><a class="header" href="#running-the-example">Running the Example</a></h2>
<pre><code class="language-bash">cargo run --example 01-simple-agent -p vapora-agents
</code></pre>
<h2 id="expected-output"><a class="header" href="#expected-output">Expected Output</a></h2>
<pre><code>=== Simple Agent Registration Example ===
Created agent registry with capacity 10
Defined agent: "Developer A" (role: developer)
Capabilities: ["coding", "testing"]
Agent registered successfully
Agent ID: &lt;uuid&gt;
=== Registered Agents ===
Total: 1 agents
- Developer A (Role: developer, Status: Ready, Capabilities: coding, testing)
Retrieved agent: Developer A (Status: Ready)
</code></pre>
<h2 id="concepts"><a class="header" href="#concepts">Concepts</a></h2>
<h3 id="agentregistry"><a class="header" href="#agentregistry">AgentRegistry</a></h3>
<ul>
<li>Thread-safe registry for managing agents</li>
<li>Capacity-limited (prevents resource exhaustion)</li>
<li>In-memory storage</li>
</ul>
<h3 id="agentmetadata"><a class="header" href="#agentmetadata">AgentMetadata</a></h3>
<ul>
<li>Unique ID (UUID)</li>
<li>Role: developer, reviewer, architect, etc.</li>
<li>Capabilities: coding, testing, documentation, etc.</li>
<li>LLM Provider: claude, gpt-4, gemini, ollama</li>
<li>Model: specific version (opus, sonnet, etc.)</li>
</ul>
<h3 id="agentstatus"><a class="header" href="#agentstatus">AgentStatus</a></h3>
<ul>
<li><strong>Ready</strong>: Available for task assignment</li>
<li><strong>Busy</strong>: Executing tasks</li>
<li><strong>Offline</strong>: Not available</li>
</ul>
<h2 id="common-patterns"><a class="header" href="#common-patterns">Common Patterns</a></h2>
<h3 id="register-multiple-agents"><a class="header" href="#register-multiple-agents">Register Multiple Agents</a></h3>
<pre><pre class="playground"><code class="language-rust"><span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>let agents = vec![
AgentMetadata::new(...),
AgentMetadata::new(...),
];
for agent in agents {
registry.register_agent(agent)?;
}
<span class="boring">}</span></code></pre></pre>
<h3 id="filter-by-capability"><a class="header" href="#filter-by-capability">Filter by Capability</a></h3>
<pre><pre class="playground"><code class="language-rust"><span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>let all_agents = registry.list_all();
let developers = all_agents
.iter()
.filter(|a| a.role == "developer")
.collect::&lt;Vec&lt;_&gt;&gt;();
<span class="boring">}</span></code></pre></pre>
<h2 id="troubleshooting"><a class="header" href="#troubleshooting">Troubleshooting</a></h2>
<p><strong>Q: "Agent registry is full"</strong>
A: Increase capacity: <code>AgentRegistry::new(20)</code></p>
<p><strong>Q: "Agent ID already registered"</strong>
A: Use unique agent names or generate new IDs</p>
<h2 id="next-steps"><a class="header" href="#next-steps">Next Steps</a></h2>
<ul>
<li>Tutorial 3: <a href="03-llm-routing.html">LLM Routing</a></li>
<li>Example: <code>crates/vapora-agents/examples/03-agent-selection.rs</code></li>
</ul>
<h2 id="reference"><a class="header" href="#reference">Reference</a></h2>
<ul>
<li>Source: <code>crates/vapora-agents/src/registry.rs</code></li>
<li>API Docs: <code>cargo doc --open -p vapora-agents</code></li>
</ul>
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