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feat: change multi-agent to use path-like system instead of uuids (#15313)

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This PR add an URI-based system to reference agents within a tree. This
comes from a sync between research and engineering.

The main agent (the one manually spawned by a user) is always called
`/root`. Any sub-agent spawned by it will be `/root/agent_1` for example
where `agent_1` is chosen by the model.

Any agent can contact any agents using the path.

Paths can be used either in absolute or relative to the calling agents

Resume is not supported for now on this new path
This commit is contained in:
jif-oai
2026-03-20 18:23:48 +00:00
committed by GitHub
Unverified
parent 4ddde54c19
commit 79ad7b247b
57 changed files with 1707 additions and 299 deletions
Download Patch File Download Diff File Expand all files Collapse all files
codex-rs/state/src/runtime/memories.rs
+1
View File
@@ -166,6 +166,7 @@ SELECT
created_at,
updated_at,
source,
agent_path,
agent_nickname,
agent_role,
model_provider,
codex-rs/state/src/runtime/test_support.rs
+1
View File
@@ -50,6 +50,7 @@ pub(super) fn test_thread_metadata(
source: "cli".to_string(),
agent_nickname: None,
agent_role: None,
agent_path: None,
model_provider: "test-provider".to_string(),
model: Some("gpt-5".to_string()),
reasoning_effort: Some(ReasoningEffort::Medium),
codex-rs/state/src/runtime/threads.rs
+87 -2
View File
@@ -13,6 +13,7 @@ SELECT
source,
agent_nickname,
agent_role,
agent_path,
model_provider,
model,
reasoning_effort,
@@ -142,6 +143,62 @@ ON CONFLICT(child_thread_id) DO UPDATE SET
.await
}
/// Find a direct spawned child of `parent_thread_id` by canonical agent path.
pub async fn find_thread_spawn_child_by_path(
&self,
parent_thread_id: ThreadId,
agent_path: &str,
) -> anyhow::Result<Option<ThreadId>> {
let rows = sqlx::query(
r#"
SELECT threads.id
FROM thread_spawn_edges
JOIN threads ON threads.id = thread_spawn_edges.child_thread_id
WHERE thread_spawn_edges.parent_thread_id = ?
AND threads.agent_path = ?
ORDER BY threads.id
LIMIT 2
"#,
)
.bind(parent_thread_id.to_string())
.bind(agent_path)
.fetch_all(self.pool.as_ref())
.await?;
one_thread_id_from_rows(rows, agent_path)
}
/// Find a spawned descendant of `root_thread_id` by canonical agent path.
pub async fn find_thread_spawn_descendant_by_path(
&self,
root_thread_id: ThreadId,
agent_path: &str,
) -> anyhow::Result<Option<ThreadId>> {
let rows = sqlx::query(
r#"
WITH RECURSIVE subtree(child_thread_id) AS (
SELECT child_thread_id
FROM thread_spawn_edges
WHERE parent_thread_id = ?
UNION ALL
SELECT edge.child_thread_id
FROM thread_spawn_edges AS edge
JOIN subtree ON edge.parent_thread_id = subtree.child_thread_id
)
SELECT threads.id
FROM subtree
JOIN threads ON threads.id = subtree.child_thread_id
WHERE threads.agent_path = ?
ORDER BY threads.id
LIMIT 2
"#,
)
.bind(root_thread_id.to_string())
.bind(agent_path)
.fetch_all(self.pool.as_ref())
.await?;
one_thread_id_from_rows(rows, agent_path)
}
async fn list_thread_spawn_children_matching(
&self,
parent_thread_id: ThreadId,
@@ -293,6 +350,7 @@ SELECT
source,
agent_nickname,
agent_role,
agent_path,
model_provider,
model,
reasoning_effort,
@@ -393,6 +451,7 @@ INSERT INTO threads (
source,
agent_nickname,
agent_role,
agent_path,
model_provider,
model,
reasoning_effort,
@@ -409,7 +468,7 @@ INSERT INTO threads (
git_branch,
git_origin_url,
memory_mode
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
ON CONFLICT(id) DO NOTHING
"#,
)
@@ -420,6 +479,7 @@ ON CONFLICT(id) DO NOTHING
.bind(metadata.source.as_str())
.bind(metadata.agent_nickname.as_deref())
.bind(metadata.agent_role.as_deref())
.bind(metadata.agent_path.as_deref())
.bind(metadata.model_provider.as_str())
.bind(metadata.model.as_deref())
.bind(
@@ -518,6 +578,7 @@ INSERT INTO threads (
source,
agent_nickname,
agent_role,
agent_path,
model_provider,
model,
reasoning_effort,
@@ -534,7 +595,7 @@ INSERT INTO threads (
git_branch,
git_origin_url,
memory_mode
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
ON CONFLICT(id) DO UPDATE SET
rollout_path = excluded.rollout_path,
created_at = excluded.created_at,
@@ -542,6 +603,7 @@ ON CONFLICT(id) DO UPDATE SET
source = excluded.source,
agent_nickname = excluded.agent_nickname,
agent_role = excluded.agent_role,
agent_path = excluded.agent_path,
model_provider = excluded.model_provider,
model = excluded.model,
reasoning_effort = excluded.reasoning_effort,
@@ -566,6 +628,7 @@ ON CONFLICT(id) DO UPDATE SET
.bind(metadata.source.as_str())
.bind(metadata.agent_nickname.as_deref())
.bind(metadata.agent_role.as_deref())
.bind(metadata.agent_path.as_deref())
.bind(metadata.model_provider.as_str())
.bind(metadata.model.as_deref())
.bind(
@@ -753,6 +816,26 @@ ON CONFLICT(thread_id, position) DO NOTHING
}
}
fn one_thread_id_from_rows(
rows: Vec<sqlx::sqlite::SqliteRow>,
agent_path: &str,
) -> anyhow::Result<Option<ThreadId>> {
let mut ids = rows
.into_iter()
.map(|row| {
let id: String = row.try_get("id")?;
ThreadId::try_from(id).map_err(anyhow::Error::from)
})
.collect::<Result<Vec<_>, _>>()?;
match ids.len() {
0 => Ok(None),
1 => Ok(ids.pop()),
_ => Err(anyhow::anyhow!(
"multiple agents found for canonical path `{agent_path}`"
)),
}
}
pub(super) fn extract_dynamic_tools(items: &[RolloutItem]) -> Option<Option<Vec<DynamicToolSpec>>> {
items.iter().find_map(|item| match item {
RolloutItem::SessionMeta(meta_line) => Some(meta_line.meta.dynamic_tools.clone()),
@@ -942,6 +1025,7 @@ mod tests {
originator: String::new(),
cli_version: String::new(),
source: SessionSource::Cli,
agent_path: None,
agent_nickname: None,
agent_role: None,
model_provider: None,
@@ -996,6 +1080,7 @@ mod tests {
originator: String::new(),
cli_version: String::new(),
source: SessionSource::Cli,
agent_path: None,
agent_nickname: None,
agent_role: None,
model_provider: None,