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372//! Agent registry — tracks all agents, their state, and indexes.
use dashmap::DashMap;
use openfang_types::agent::{AgentEntry, AgentId, AgentMode, AgentState};
use openfang_types::error::{OpenFangError, OpenFangResult};
/// Registry of all agents in the kernel.
pub struct AgentRegistry {
/// Primary index: agent ID → entry.
agents: DashMap<AgentId, AgentEntry>,
/// Name index: human-readable name → agent ID.
name_index: DashMap<String, AgentId>,
/// Tag index: tag → list of agent IDs.
tag_index: DashMap<String, Vec<AgentId>>,
}
impl AgentRegistry {
/// Create a new empty registry.
pub fn new() -> Self {
Self {
agents: DashMap::new(),
name_index: DashMap::new(),
tag_index: DashMap::new(),
}
}
/// Register a new agent.
pub fn register(&self, entry: AgentEntry) -> OpenFangResult<()> {
if self.name_index.contains_key(&entry.name) {
return Err(OpenFangError::AgentAlreadyExists(entry.name.clone()));
}
let id = entry.id;
self.name_index.insert(entry.name.clone(), id);
for tag in &entry.tags {
self.tag_index.entry(tag.clone()).or_default().push(id);
}
self.agents.insert(id, entry);
Ok(())
}
/// Get an agent entry by ID.
pub fn get(&self, id: AgentId) -> Option<AgentEntry> {
self.agents.get(&id).map(|e| e.value().clone())
}
/// Find an agent by name.
pub fn find_by_name(&self, name: &str) -> Option<AgentEntry> {
self.name_index
.get(name)
.and_then(|id| self.agents.get(id.value()).map(|e| e.value().clone()))
}
/// Update agent state.
pub fn set_state(&self, id: AgentId, state: AgentState) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.state = state;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update agent operational mode.
pub fn set_mode(&self, id: AgentId, mode: AgentMode) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.mode = mode;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Remove an agent from the registry.
pub fn remove(&self, id: AgentId) -> OpenFangResult<AgentEntry> {
let (_, entry) = self
.agents
.remove(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
self.name_index.remove(&entry.name);
for tag in &entry.tags {
if let Some(mut ids) = self.tag_index.get_mut(tag) {
ids.retain(|&agent_id| agent_id != id);
}
}
Ok(entry)
}
/// List all agents.
pub fn list(&self) -> Vec<AgentEntry> {
self.agents.iter().map(|e| e.value().clone()).collect()
}
/// Add a child agent ID to a parent's children list.
pub fn add_child(&self, parent_id: AgentId, child_id: AgentId) {
if let Some(mut entry) = self.agents.get_mut(&parent_id) {
entry.children.push(child_id);
}
}
/// Count of registered agents.
pub fn count(&self) -> usize {
self.agents.len()
}
/// Update an agent's session ID (for session reset).
pub fn update_session_id(
&self,
id: AgentId,
new_session_id: openfang_types::agent::SessionId,
) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.session_id = new_session_id;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update an agent's workspace path.
pub fn update_workspace(
&self,
id: AgentId,
workspace: Option<std::path::PathBuf>,
) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.manifest.workspace = workspace;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update an agent's visual identity (emoji, avatar, color).
pub fn update_identity(
&self,
id: AgentId,
identity: openfang_types::agent::AgentIdentity,
) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.identity = identity;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update an agent's model configuration.
pub fn update_model(&self, id: AgentId, new_model: String) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.manifest.model.model = new_model;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update an agent's model AND provider together.
pub fn update_model_and_provider(
&self,
id: AgentId,
new_model: String,
new_provider: String,
) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.manifest.model.model = new_model;
entry.manifest.model.provider = new_provider;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update an agent's skill allowlist.
pub fn update_skills(&self, id: AgentId, skills: Vec<String>) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.manifest.skills = skills;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update an agent's MCP server allowlist.
pub fn update_mcp_servers(&self, id: AgentId, servers: Vec<String>) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.manifest.mcp_servers = servers;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update an agent's system prompt (hot-swap, takes effect on next message).
pub fn update_system_prompt(&self, id: AgentId, new_prompt: String) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.manifest.model.system_prompt = new_prompt;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update an agent's name (also updates the name index).
pub fn update_name(&self, id: AgentId, new_name: String) -> OpenFangResult<()> {
if self.name_index.contains_key(&new_name) {
return Err(OpenFangError::AgentAlreadyExists(new_name));
}
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
let old_name = entry.name.clone();
entry.name = new_name.clone();
entry.manifest.name = new_name.clone();
entry.last_active = chrono::Utc::now();
// Update name index
drop(entry);
self.name_index.remove(&old_name);
self.name_index.insert(new_name, id);
Ok(())
}
/// Update an agent's description.
pub fn update_description(&self, id: AgentId, new_desc: String) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.manifest.description = new_desc;
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Update an agent's resource quota (budget limits).
pub fn update_resources(
&self,
id: AgentId,
hourly: Option<f64>,
daily: Option<f64>,
monthly: Option<f64>,
) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
if let Some(v) = hourly {
entry.manifest.resources.max_cost_per_hour_usd = v;
}
if let Some(v) = daily {
entry.manifest.resources.max_cost_per_day_usd = v;
}
if let Some(v) = monthly {
entry.manifest.resources.max_cost_per_month_usd = v;
}
entry.last_active = chrono::Utc::now();
Ok(())
}
/// Mark an agent's onboarding as complete.
pub fn mark_onboarding_complete(&self, id: AgentId) -> OpenFangResult<()> {
let mut entry = self
.agents
.get_mut(&id)
.ok_or_else(|| OpenFangError::AgentNotFound(id.to_string()))?;
entry.onboarding_completed = true;
entry.onboarding_completed_at = Some(chrono::Utc::now());
entry.last_active = chrono::Utc::now();
Ok(())
}
}
impl Default for AgentRegistry {
fn default() -> Self {
Self::new()
}
}
#[cfg(test)]
mod tests {
use super::*;
use chrono::Utc;
use openfang_types::agent::*;
use std::collections::HashMap;
fn test_entry(name: &str) -> AgentEntry {
AgentEntry {
id: AgentId::new(),
name: name.to_string(),
manifest: AgentManifest {
name: name.to_string(),
version: "0.1.0".to_string(),
description: "test".to_string(),
author: "test".to_string(),
module: "test".to_string(),
schedule: ScheduleMode::default(),
model: ModelConfig::default(),
fallback_models: vec![],
resources: ResourceQuota::default(),
priority: Priority::default(),
capabilities: ManifestCapabilities::default(),
profile: None,
tools: HashMap::new(),
skills: vec![],
mcp_servers: vec![],
metadata: HashMap::new(),
tags: vec![],
routing: None,
autonomous: None,
pinned_model: None,
workspace: None,
generate_identity_files: true,
exec_policy: None,
},
state: AgentState::Created,
mode: AgentMode::default(),
created_at: Utc::now(),
last_active: Utc::now(),
parent: None,
children: vec![],
session_id: SessionId::new(),
tags: vec![],
identity: Default::default(),
onboarding_completed: false,
onboarding_completed_at: None,
}
}
#[test]
fn test_register_and_get() {
let registry = AgentRegistry::new();
let entry = test_entry("test-agent");
let id = entry.id;
registry.register(entry).unwrap();
assert!(registry.get(id).is_some());
}
#[test]
fn test_find_by_name() {
let registry = AgentRegistry::new();
let entry = test_entry("my-agent");
registry.register(entry).unwrap();
assert!(registry.find_by_name("my-agent").is_some());
}
#[test]
fn test_duplicate_name() {
let registry = AgentRegistry::new();
registry.register(test_entry("dup")).unwrap();
assert!(registry.register(test_entry("dup")).is_err());
}
#[test]
fn test_remove() {
let registry = AgentRegistry::new();
let entry = test_entry("removable");
let id = entry.id;
registry.register(entry).unwrap();
registry.remove(id).unwrap();
assert!(registry.get(id).is_none());
}
}