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allow a max_subagents of 0: no subagents for the agent

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This commit is contained in:
damocles 2026-10-15 18:48:22 +02:00 • committed by mara
commit a1f99c77f8
7 changed files with 85 additions and 31 deletions
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21
swarm-controller/src/inference.rs
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@ -53,8 +53,8 @@ pub struct InferenceSettings {
/// The models the agent may start its subagents on. At least one.
#[serde(default, skip_serializing_if = "Option::is_none")]
subagent_models: Option<Vec<String>>,
/// How many subagents the agent may have running at once, from 1 to
/// [`MAX_SUBAGENTS`]. Absent is no cap.
/// How many subagents the agent may have running at once, from 0 (no
/// subagents) to [`MAX_SUBAGENTS`]. Absent is no cap.
#[serde(default, skip_serializing_if = "Option::is_none")]
max_subagents: Option<u32>,
}
@ -107,10 +107,10 @@ impl InferenceSettings {
}
}
if let Some(max) = self.max_subagents
&& !(1..=MAX_SUBAGENTS).contains(&max)
&& max > MAX_SUBAGENTS
{
return Err(format!(
"max_subagents is {max}; it is from 1 to {MAX_SUBAGENTS}, or left out for no cap"
"max_subagents is {max}; it is from 0 (no subagents) to {MAX_SUBAGENTS}, or left out for no cap"
));
}
Ok(AgentInference {
@ -286,7 +286,7 @@ pub(crate) async fn get_agent_inference(
ones whole", body = InferenceSettings),
(status = 400, description = "not an identifier, not declared on any hive, or a \
model name is empty, has whitespace, starts with `-`, or is listed \
twice, or `max_subagents` is outside 1 to 32 (problem+json)",
twice, or `max_subagents` is above 32 (problem+json)",
body = String),
(status = 422, description = "an unknown field, or an effort that is not one of \
the five levels"),
@ -558,15 +558,18 @@ mod tests {
#[test]
fn max_subagents_outside_its_range_is_refused() {
for json in [r#"{"max_subagents":0}"#, r#"{"max_subagents":33}"#] {
assert!(settings(json).unwrap().into_stored().is_err(), "{json}");
}
assert!(
settings(r#"{"max_subagents":33}"#)
.unwrap()
.into_stored()
.is_err()
);
assert!(settings(r#"{"max_subagents":-1}"#).is_err());
}
#[test]
fn max_subagents_in_range_is_stored() {
for max in [1, 3, MAX_SUBAGENTS] {
for max in [0, 1, 3, MAX_SUBAGENTS] {
let stored = settings(&format!(r#"{{"max_subagents":{max}}}"#))
.unwrap()
.into_stored()