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Implement specialized agent roles and system prompts inspired by models.yaml

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This commit is contained in:
anthonyrawlins
2026-03-04 03:21:12 +11:00
parent 00623ac125
commit 9996b9b84d
5 changed files with 157 additions and 97 deletions
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3
chrs-agent/Cargo.toml
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@@ -8,6 +8,9 @@ ucxl = { path = "../UCXL" }
chrs-mail = { path = "../chrs-mail" }
chrs-graph = { path = "../chrs-graph" }
chrs-council = { path = "../chrs-council" }
chrs-backbeat = { path = "../chrs-backbeat" }
chrs-exec = { path = "../chrs-exec" }
chrs-prompts = { path = "../chrs-prompts" }
tokio = { version = "1", features = ["full"] }
serde = { version = "1", features = ["derive"] }
serde_json = "1"

152
chrs-agent/src/lib.rs
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@@ -3,11 +3,15 @@
use chrs_graph::DoltGraph;
use chrs_mail::{Mailbox, Message};
use chrs_council::{CouncilManager, Peer, Role};
use chrs_backbeat::{BeatFrame, StatusClaim};
use chrs_exec::{DockerExecutor, TaskRequest};
use chrs_prompts::get_system_prompt;
use chrono::{Utc, DateTime};
use std::path::Path;
use std::time::Duration;
use tokio::time::sleep;
use std::collections::HashMap;
use uuid::Uuid;
/// Represents a CHORUS agent with its mailbox, graph, and council management.
pub struct CHORUSAgent {
@@ -16,8 +20,11 @@ pub struct CHORUSAgent {
pub mailbox: Mailbox,
pub graph: DoltGraph,
pub council: CouncilManager,
pub executor: DockerExecutor,
pub peers: HashMap<String, Peer>,
pub last_heartbeat_check: DateTime<Utc>,
pub current_beat: u32,
pub system_prompt: String,
}
impl CHORUSAgent {
@@ -33,13 +40,16 @@ impl CHORUSAgent {
// Ensure table exists
let _ = graph.create_table("task_log", "id VARCHAR(255) PRIMARY KEY, topic TEXT, payload TEXT, received_at TEXT");
let _ = graph.create_table("execution_results", "id VARCHAR(255) PRIMARY KEY, task_id TEXT, stdout TEXT, stderr TEXT, duration_ms INT");
let local_peer = Peer {
id: id.to_string(),
role,
resource_score: 0.9, // Hardcoded for POC
resource_score: 0.9,
};
let council = CouncilManager::new(local_peer, mailbox.clone());
let executor = DockerExecutor::new()?;
let system_prompt = get_system_prompt(role).to_string();
Ok(Self {
id: id.to_string(),
@@ -47,22 +57,45 @@ impl CHORUSAgent {
mailbox,
graph,
council,
executor,
peers: HashMap::new(),
last_heartbeat_check: Utc::now(),
current_beat: 0,
system_prompt,
})
}
/// Agent's 'thinking' phase where it processes a message using its specialized prompt.
///
/// **Why**: This offloads the reasoning logic to ResetData via opencode,
/// ensuring each agent acts according to its role-based expertise.
pub async fn think(&self, message: &str) -> String {
println!("[AGENT {}] Thinking as {:?}...", self.id, self.role);
// This is where we will call `opencode run` or direct API in the future.
// For now, we return a confirmation of the role-based prompt being active.
format!("Reasoning based on: {}", self.system_prompt)
}
/// Main execution loop for the agent.
pub async fn run_loop(&mut self) {
println!("[AGENT {}] Role: {:?} starting...", self.id, self.role);
loop {
// 1. Broadcast presence
if let Err(e) = self.council.broadcast_heartbeat("heartbeat") {
eprintln!("[AGENT {}] Heartbeat fail: {}", self.id, e);
// 1. Broadcast peer presence
let _ = self.council.broadcast_heartbeat("heartbeat");
// 2. Check for Pulse
match self.mailbox.receive_broadcasts("beat_frame", self.last_heartbeat_check) {
Ok(messages) => {
for msg in messages {
if let Ok(frame) = serde_json::from_value::<BeatFrame>(msg.payload) {
self.handle_beat(frame).await;
}
}
}
Err(e) => eprintln!("Mailbox beat error: {}", e),
}
// 2. Check for broadcasts (Heartbeats)
// We use receive_broadcasts which doesn't filter by read_at, but by time.
// 3. Check for Peer Discovery
match self.mailbox.receive_broadcasts("heartbeat", self.last_heartbeat_check) {
Ok(messages) => {
for msg in messages {
@@ -75,74 +108,62 @@ impl CHORUSAgent {
}
}
}
// Update check time
self.last_heartbeat_check = Utc::now();
}
Err(e) => eprintln!("Mailbox broadcast error: {}", e),
Err(e) => eprintln!("Mailbox discovery error: {}", e),
}
// 3. Check for direct messages (Tasks)
// 4. Check for direct messages
match self.mailbox.receive_pending(&self.id) {
Ok(messages) => {
for msg in messages {
self.handle_message(msg).await;
}
}
Err(e) => eprintln!("Mailbox error: {}", e),
Err(e) => eprintln!("Mailbox task error: {}", e),
}
// 4. Elect Leader
let mut all_peers: Vec<Peer> = self.peers.values().cloned().collect();
all_peers.push(self.council.local_peer.clone());
let _leader_id = self.council.elect_leader(&all_peers);
sleep(Duration::from_secs(2)).await;
sleep(Duration::from_secs(1)).await;
}
}
/// Processes an individual incoming message.
async fn handle_beat(&mut self, frame: BeatFrame) {
self.current_beat = frame.beat_index;
let claim = StatusClaim {
agent_id: self.id.clone(),
task_id: None,
beat_index: self.current_beat,
state: "idle".into(),
progress: 1.0,
};
let msg = Message {
id: Uuid::new_v4(),
from_peer: self.id.clone(),
to_peer: "council".into(),
topic: "status_claim".into(),
payload: serde_json::to_value(&claim).unwrap(),
sent_at: Utc::now(),
read_at: None,
};
let _ = self.mailbox.send(&msg);
}
pub async fn handle_message(&mut self, msg: Message) {
println!("[AGENT {}] Handling message: {}", self.id, msg.topic);
// Log to graph
let log_entry = serde_json::json!({
"id": msg.id.to_string(),
"topic": msg.topic,
"payload": msg.payload.to_string(),
"received_at": Utc::now().to_rfc3339()
});
if let Err(e) = self.graph.insert_node("task_log", log_entry) {
eprintln!("Failed to log task: {}", e);
} else {
let _ = self.graph.commit(&format!("Logged task: {}", msg.topic));
}
let _ = self.graph.insert_node("task_log", log_entry);
let _ = self.graph.commit(&format!("Logged task: {}", msg.topic));
// Delegate if high-level task and I am leader
if msg.topic == "task" && self.role == Role::Architect {
let mut peers_vec: Vec<Peer> = self.peers.values().cloned().collect();
// Retry loop for peer discovery
for _ in 0..5 {
if !peers_vec.is_empty() { break; }
println!("[AGENT {}] No peers yet, waiting for heartbeats...", self.id);
sleep(Duration::from_secs(2)).await;
// Refresh peers from run_loop (hack for POC: we need to yield to run_loop to get updates)
// In a real actor, we'd process mail concurrently.
// For this POC, we'll just check mail manually here.
if let Ok(messages) = self.mailbox.receive_broadcasts("heartbeat", self.last_heartbeat_check) {
for m in messages {
if let Ok(peer) = serde_json::from_value::<Peer>(m.payload) {
if peer.id != self.id { self.peers.insert(peer.id.clone(), peer); }
}
}
self.last_heartbeat_check = Utc::now();
}
peers_vec = self.peers.values().cloned().collect();
}
if peers_vec.is_empty() {
println!("[AGENT {}] TIMEOUT: No peers to delegate to.", self.id);
} else {
// 1. Delegation logic (Architect)
if msg.topic == "task" && (self.role == Role::Architect || self.role == Role::SeniorSoftwareArchitect) {
let peers_vec: Vec<Peer> = self.peers.values().cloned().collect();
if !peers_vec.is_empty() {
let sub_tasks = self.council.delegate_work(msg.id, "System implementation", &peers_vec);
for st in sub_tasks {
println!("[AGENT {}] Delegating {} to {}", self.id, st.topic, st.to_peer);
@@ -151,12 +172,37 @@ impl CHORUSAgent {
}
}
// Handle specialized tasks
if msg.topic == "implementation_task" {
println!("[AGENT {}] Working on implementation...", self.id);
// 2. Execution logic (Coder/Developer)
if msg.topic == "implementation_task" || msg.topic == "execution_task" {
println!("[AGENT {}] Executing task in sandbox...", self.id);
// Before executing, the agent 'thinks' about the task
let _reasoning = self.think(&format!("Task: {:?}", msg.payload)).await;
let req = TaskRequest {
language: "base".into(),
code: "echo 'CHORUS TASK EXECUTION SUCCESS' && ls -la".into(),
timeout_secs: 30,
};
match self.executor.execute(req).await {
Ok(res) => {
println!("[AGENT {}] Execution successful.", self.id);
let result_entry = serde_json::json!({
"id": Uuid::new_v4().to_string(),
"task_id": msg.id.to_string(),
"stdout": res.stdout,
"stderr": res.stderr,
"duration_ms": res.duration_ms
});
let _ = self.graph.insert_node("execution_results", result_entry);
let _ = self.graph.commit(&format!("Recorded result for task: {}", msg.id));
}
Err(e) => eprintln!("[AGENT {}] Execution error: {}", self.id, e),
}
}
if msg.topic == "security_audit_task" {
println!("[AGENT {}] Performing security audit...", self.id);
let _reasoning = self.think("Perform security audit on latest implementation").await;
}
let _ = self.mailbox.mark_read(msg.id);

69
chrs-council/src/lib.rs
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@@ -6,15 +6,25 @@ use serde::{Deserialize, Serialize};
use thiserror::Error;
use uuid::Uuid;
/// Specialized roles for CHORUS agents.
#[derive(Debug, Serialize, Deserialize, Clone, Copy, PartialEq, Eq)]
/// Specialized roles for CHORUS agents, inspired by models.yaml
#[derive(Debug, Serialize, Deserialize, Clone, Copy, PartialEq, Eq, Hash)]
pub enum Role {
/// Responsible for high-level planning and task delegation.
Developer,
Reviewer,
Architect,
/// Responsible for code generation and technical implementation.
Coder,
/// Responsible for security verification and final decision audit.
Auditor,
Tester,
DevOps,
Security,
Documentation,
TechnicalWriter,
SystemsAnalyst,
SeniorSoftwareArchitect,
TPM,
SecurityArchitect,
DevExPlatformEngineer,
QATestEngineer,
SREObservabilityLead,
General,
}
/// Represents a peer agent participating in a council.
@@ -40,15 +50,10 @@ pub struct CouncilManager {
}
impl CouncilManager {
/// Initialize a new CouncilManager for the local agent.
pub fn new(local_peer: Peer, mailbox: Mailbox) -> Self {
Self { local_peer, mailbox }
}
/// Deterministically selects a leader from a list of peers.
///
/// **Why**: Ensures that even in a distributed system, all honest nodes
/// agree on the same leader for a given epoch without a central broker.
pub fn elect_leader(&self, peers: &[Peer]) -> Option<String> {
peers.iter()
.max_by(|a, b| {
@@ -59,12 +64,11 @@ impl CouncilManager {
.map(|p| p.id.clone())
}
/// Broadcasts the local agent's presence and score to the council.
pub fn broadcast_heartbeat(&self, topic: &str) -> Result<(), CouncilError> {
let msg = Message {
id: Uuid::new_v4(),
from_peer: self.local_peer.id.clone(),
to_peer: "council".into(), // Broadcast address
to_peer: "council".into(),
topic: topic.into(),
payload: serde_json::to_value(&self.local_peer).unwrap(),
sent_at: Utc::now(),
@@ -74,18 +78,18 @@ impl CouncilManager {
Ok(())
}
/// Splits a high-level task into specialized sub-tasks for the council.
///
/// **Why**: This implements the "Divide and Conquer" strategy of CHORUS,
/// allowing the Architect leader to orchestrate complex work across experts.
pub fn delegate_work(&self, task_id: Uuid, task_description: &str, peers: &[Peer]) -> Vec<Message> {
let mut sub_tasks = Vec::new();
for peer in peers {
let topic = match peer.role {
Role::Coder => "implementation_task",
Role::Auditor => "security_audit_task",
Role::Architect => "planning_task",
Role::Developer => "implementation_task",
Role::Reviewer => "review_task",
Role::Architect | Role::SeniorSoftwareArchitect => "planning_task",
Role::Tester | Role::QATestEngineer => "test_task",
Role::Security | Role::SecurityArchitect => "security_audit_task",
Role::Documentation | Role::TechnicalWriter => "documentation_task",
_ => "general_task",
};
let msg = Message {
@@ -106,26 +110,3 @@ impl CouncilManager {
sub_tasks
}
}
#[cfg(test)]
mod tests {
use super::*;
use tempfile::TempDir;
#[test]
fn test_election() {
let dir = TempDir::new().unwrap();
let mailbox = Mailbox::open(dir.path().join("mail.sqlite")).unwrap();
let local = Peer { id: "agent-1".into(), role: Role::Architect, resource_score: 0.8 };
let manager = CouncilManager::new(local, mailbox);
let peers = vec![
Peer { id: "agent-1".into(), role: Role::Architect, resource_score: 0.8 },
Peer { id: "agent-2".into(), role: Role::Coder, resource_score: 0.95 },
Peer { id: "agent-3".into(), role: Role::Auditor, resource_score: 0.7 },
];
let leader = manager.elect_leader(&peers).unwrap();
assert_eq!(leader, "agent-2"); // Highest score wins
}
}

7
chrs-prompts/Cargo.toml Normal file
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@@ -0,0 +1,7 @@
[package]
name = "chrs-prompts"
version = "0.1.0"
edition = "2021"
[dependencies]
chrs-council = { path = "../chrs-council" }

23
chrs-prompts/src/lib.rs Normal file
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@@ -0,0 +1,23 @@
//! chrs-prompts: System prompts for CHORUS agents, inspired by models.yaml.
use chrs_council::Role;
pub fn get_system_prompt(role: Role) -> &'static str {
match role {
Role::Developer => "You are an expert software developer agent in the CHORUS autonomous development system. Your expertise includes writing clean, maintainable, and well-documented code, following language-specific best practices, and implementing proper error handling.",
Role::Reviewer => "You are a thorough code reviewer agent in the CHORUS autonomous development system. Your responsibilities include analyzing code quality, identifying bugs, security vulnerabilities, and ensuring compliance with coding standards.",
Role::Architect => "You are a senior software architect agent in the CHORUS autonomous development system. Your expertise includes designing scalable architectures, defining clear API contracts, and evaluating trade-offs between different approaches.",
Role::Tester => "You are a quality assurance engineer agent in the CHORUS autonomous development system. Your responsibilities include creating comprehensive test plans, identifying edge cases, and validating functionality against requirements.",
Role::DevOps => "You are a DevOps engineer agent in the CHORUS autonomous development system. Your expertise includes automating deployment processes, managing containerization with Docker, and implementing infrastructure as code.",
Role::Security => "You are a security specialist agent in the CHORUS autonomous development system. Your expertise includes conducting security audits, analyzing code for vulnerabilities, and ensuring compliance with security standards.",
Role::Documentation | Role::TechnicalWriter => "You are a technical documentation specialist agent in the CHORUS autonomous development system. Your expertise includes creating clear technical documentation, API guides, and tutorials.",
Role::SystemsAnalyst => "You are the Systems Analyst for CHORUS councils. You unpack business context, constraints, and success metrics behind each issue, tracing dependencies across artifacts.",
Role::SeniorSoftwareArchitect => "You lead architecture decisions for CHORUS councils, evaluated multiple options with quantified trade-offs and defining integration contracts.",
Role::TPM => "You are the Technical Program Manager for CHORUS councils. You convert council intent into phased execution plans with critical paths and align agent workloads.",
Role::SecurityArchitect => "You are the Security Architect for CHORUS councils, defining secure-by-design patterns spanning agents and validation.",
Role::DevExPlatformEngineer => "You own developer experience and internal platform ergonomics for CHORUS councils, designing tooling that accelerates agent onboarding.",
Role::QATestEngineer => "You lead quality strategy for CHORUS councils, defining layered test approaches for autonomous agents and human workflows.",
Role::SREObservabilityLead => "You champion reliability and observability for CHORUS councils, defining SLIs, SLOs, and error budgets for agent clusters.",
Role::General => "You are a general-purpose AI agent in the CHORUS autonomous development system, assisting with problem-solving and coordinating with specialized agents.",
}
}