harn-stdlib 0.10.27

Embedded Harn standard library source catalog
Documentation 
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/**
 * Explicit transport guarantees for a custom `llm_caller`.
 *
 * Harn cannot inspect an arbitrary caller closure, so recovery mechanisms stay
 * fail-closed unless the caller declares that it forwards the supplied
 * assistant prefill unchanged to the provider transport. This says nothing
 * about provider support; the resolved provider capability remains a separate
 * required gate.
 */
pub type LlmCallerTransport = {forwards_assistant_prefill?: bool}

pub fn __validate_llm_caller(value) -> nil {
  if value == nil {
    return
  }
  if type_of(value) != "closure" {
    throw "agent_loop: `llm_caller` must be a closure or nil; got " + type_of(value)
  }
}

pub fn __normalize_llm_caller_transport(value) -> LlmCallerTransport {
  if value == nil {
    return {forwards_assistant_prefill: false}
  }
  if type_of(value) != "dict" {
    throw "agent_loop: `llm_caller_transport` must be a dict or nil; got " + type_of(value)
  }
  const forwards_assistant_prefill = value?.forwards_assistant_prefill ?? false
  if type_of(forwards_assistant_prefill) != "bool" {
    throw "agent_loop: `llm_caller_transport.forwards_assistant_prefill` must be a bool; got "
      + type_of(
      forwards_assistant_prefill,
    )
  }
  return {forwards_assistant_prefill: forwards_assistant_prefill}
}