Enum LoopAction 

pub enum LoopAction {
    CallLLM {
        context: RenderedContext,
        tools: Vec<ToolSchema>,
    },
    ExecuteTools {
        calls: Vec<ToolCall>,
    },
    Done {
        result: LoopResult,
    },
    EvaluateMilestone {
        phase_id: String,
        criteria: Vec<String>,
        verifier: Option<MilestoneVerifier>,
        required_evidence: Vec<String>,
    },
    AwaitingResume,
}

Actions the state machine outputs — SDK layer executes the I/O.

Variants

CallLLM

Structured context ready for a provider call. context.system_text → provider system param. context.turns → provider messages array (strictly alternating). tools → tool schemas (skill / memory / knowledge / user tools).

Fields

context: RenderedContext

tools: Vec<ToolSchema>

ExecuteTools

Fields

calls: Vec<ToolCall>

Done

Fields

result: LoopResult

EvaluateMilestone

Kernel requests the SDK to evaluate the current milestone phase.

The SDK should assess criteria against the agent’s output using the specified verifier, then feed back LoopEvent::MilestoneResult { result }.

Fields

phase_id: String

criteria: Vec<String>

verifier: Option<MilestoneVerifier>

required_evidence: Vec<String>

AwaitingResume

Kernel is suspended — SDK must resolve (e.g. human approval) and feed Resume.

Trait Implementations

impl Debug for LoopAction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<LoopAction> for KernelAction

fn from(action: LoopAction) -> Self

Converts to this type from the input type.