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feat: initial support for RAG nodes in the graph execution system

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This commit is contained in:
Alex Clarke
2026-05-15 14:11:23 -06:00
parent c70ac98223
commit 8a2f18204f
10 changed files with 454 additions and 47 deletions
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src/config/agent.rs
+138 -34
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@@ -11,7 +11,7 @@ use crate::config::prompts::{
DEFAULT_SPAWN_INSTRUCTIONS, DEFAULT_TEAMMATE_INSTRUCTIONS, DEFAULT_TODO_INSTRUCTIONS,
DEFAULT_USER_INTERACTION_INSTRUCTIONS,
};
use crate::graph::{Graph, GraphParser};
use crate::graph::{Graph, GraphParser, NodeType};
use crate::vault::SECRET_RE;
use anyhow::{Context, Result};
use fancy_regex::Captures;
@@ -38,6 +38,7 @@ pub struct Agent {
session_dynamic_instructions: Option<String>,
functions: Functions,
rag: Option<Arc<Rag>>,
graph_rags: HashMap<String, Arc<Rag>>,
model: Model,
vault: GlobalVault,
}
@@ -99,6 +100,7 @@ impl Agent {
let rag_path = paths::agent_rag_file(name, DEFAULT_AGENT_NAME);
let config_path = paths::agent_config_file(name);
let graph_path = paths::agent_graph_file(name);
let mut graph_for_rag: Option<Graph> = None;
let mut agent_config = match (config_path.exists(), graph_path.exists()) {
(true, true) => bail!(
"Agent '{name}' has both config.yaml and graph.yaml. A graph agent \
@@ -111,7 +113,9 @@ impl Agent {
let graph = parser
.load_from_file(&graph_path)
.with_context(|| format!("Failed to load graph.yaml for agent '{name}'"))?;
AgentConfig::from_graph(name, &graph)
let config = AgentConfig::from_graph(name, &graph);
graph_for_rag = Some(graph);
config
}
(false, false) => bail!(
"Agent '{name}' has neither a config.yaml nor a graph.yaml at '{}'",
@@ -154,44 +158,16 @@ impl Agent {
.prompt()?;
}
if ans {
let mut document_paths = vec![];
for path in &agent_config.documents {
if is_url(path) {
document_paths.push(path.to_string());
} else if is_loader_protocol(&loaders, path) {
let (protocol, document_path) = path
.split_once(':')
.with_context(|| "Invalid loader protocol path")?;
let resolved_path = resolve_home_dir(document_path);
let new_path = if Path::new(&resolved_path).is_relative() {
safe_join_path(&agent_data_dir, resolved_path)
.ok_or_else(|| anyhow!("Invalid document path: '{path}'"))?
} else {
PathBuf::from(&resolved_path)
};
document_paths.push(format!("{}:{}", protocol, new_path.display()));
} else if Path::new(&resolve_home_dir(path)).is_relative() {
let new_path = safe_join_path(&agent_data_dir, path)
.ok_or_else(|| anyhow!("Invalid document path: '{path}'"))?;
document_paths.push(new_path.display().to_string())
} else {
document_paths.push(path.to_string())
}
}
let document_paths =
resolve_document_paths(&agent_config.documents, &loaders, &agent_data_dir)?;
let key = RagKey::Agent(name.to_string());
let app_clone = app.clone();
let rag_path_clone = rag_path.clone();
let abort = abort_signal.clone();
let rag = app_state
.rag_cache
.load_with(key, || async move {
Rag::init(
&app_clone,
"rag",
&rag_path_clone,
&document_paths,
abort_signal,
)
.await
Rag::init(&app_clone, "rag", &rag_path_clone, &document_paths, abort).await
})
.await?;
Some(rag)
@@ -202,6 +178,23 @@ impl Agent {
None
};
let graph_rags = match &graph_for_rag {
Some(graph) => {
init_graph_rags(
app,
app_state,
name,
graph,
&agent_data_dir,
&loaders,
info_flag,
abort_signal.clone(),
)
.await?
}
None => HashMap::new(),
};
if agent_config.auto_continue {
functions.append_todo_functions();
}
@@ -224,6 +217,7 @@ impl Agent {
session_dynamic_instructions: None,
functions,
rag,
graph_rags,
model,
vault: app_state.vault.clone(),
})
@@ -330,6 +324,10 @@ impl Agent {
self.rag.clone()
}
pub fn graph_rag(&self, node_id: &str) -> Option<Arc<Rag>> {
self.graph_rags.get(node_id).cloned()
}
pub fn append_mcp_meta_functions(&mut self, mcp_servers: Vec<String>) {
self.functions.append_mcp_meta_functions(mcp_servers);
}
@@ -784,6 +782,112 @@ pub struct AgentVariable {
pub value: String,
}
/// Resolve document path specs (URLs, loader-protocol paths, relative or
/// absolute file paths) into the concrete paths `Rag::init` expects.
/// Relative paths are joined against the agent's data directory.
fn resolve_document_paths(
documents: &[String],
loaders: &HashMap<String, String>,
agent_data_dir: &Path,
) -> Result<Vec<String>> {
let mut document_paths = vec![];
for path in documents {
if is_url(path) {
document_paths.push(path.to_string());
} else if is_loader_protocol(loaders, path) {
let (protocol, document_path) = path
.split_once(':')
.with_context(|| "Invalid loader protocol path")?;
let resolved_path = resolve_home_dir(document_path);
let new_path = if Path::new(&resolved_path).is_relative() {
safe_join_path(agent_data_dir, resolved_path)
.ok_or_else(|| anyhow!("Invalid document path: '{path}'"))?
} else {
PathBuf::from(&resolved_path)
};
document_paths.push(format!("{}:{}", protocol, new_path.display()));
} else if Path::new(&resolve_home_dir(path)).is_relative() {
let new_path = safe_join_path(agent_data_dir, path)
.ok_or_else(|| anyhow!("Invalid document path: '{path}'"))?;
document_paths.push(new_path.display().to_string())
} else {
document_paths.push(path.to_string())
}
}
Ok(document_paths)
}
/// Build or load a knowledge base for every `rag` node in the graph. Each
/// node's RAG lives in `<agent>/<node-id>.yaml`. A missing knowledge base is
/// a hard error (interactive: after a declined confirm; non-interactive:
/// immediately) — a graph with an uninitialized `rag` node cannot run.
#[allow(clippy::too_many_arguments)]
async fn init_graph_rags(
app: &AppConfig,
app_state: &AppState,
agent_name: &str,
graph: &Graph,
agent_data_dir: &Path,
loaders: &HashMap<String, String>,
info_flag: bool,
abort_signal: AbortSignal,
) -> Result<HashMap<String, Arc<Rag>>> {
let mut rags = HashMap::new();
for (node_id, node) in &graph.nodes {
let NodeType::Rag(rag_node) = &node.node_type else {
continue;
};
let rag_path = paths::agent_rag_file(agent_name, node_id);
let key = RagKey::GraphNode {
agent: agent_name.to_string(),
node: node_id.clone(),
};
let rag = if rag_path.exists() {
let app_clone = app.clone();
let path_clone = rag_path.clone();
let name_clone = node_id.clone();
app_state
.rag_cache
.load_with(key, || async move {
Rag::load(&app_clone, &name_clone, &path_clone)
})
.await?
} else if info_flag || !*IS_STDOUT_TERMINAL {
bail!(
"Agent '{agent_name}' requires RAG for rag node '{node_id}', but its \
knowledge base has not been built. Run the agent once interactively \
to initialize it."
);
} else {
let ans = Confirm::new(&format!(
"Initialize RAG knowledge base for rag node '{node_id}'?"
))
.with_default(true)
.prompt()?;
if !ans {
bail!(
"Agent '{agent_name}' has rag node '{node_id}' but its RAG was not \
initialized. RAG initialization is required for this agent."
);
}
let document_paths =
resolve_document_paths(&rag_node.documents, loaders, agent_data_dir)?;
let app_clone = app.clone();
let path_clone = rag_path.clone();
let name_clone = node_id.clone();
let abort = abort_signal.clone();
app_state
.rag_cache
.load_with(key, || async move {
Rag::init(&app_clone, &name_clone, &path_clone, &document_paths, abort).await
})
.await?
};
rags.insert(node_id.clone(), rag);
}
Ok(rags)
}
pub fn list_agents() -> Vec<String> {
let agents_data_dir = paths::agents_data_dir();
if !agents_data_dir.exists() {