Files
Cyrene_v2/internal/runtime/loop/step.go
T

65 lines
2.1 KiB
Go

package loop
import (
"context"
"fmt"
"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/agent"
"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/model"
"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/trace"
)
// stepOutcome is the loop's internal view of one model step, normalized from the
// agent's *agent.StepResult (non-streaming) or the equivalent built by the
// streaming path.
type stepOutcome struct {
final bool
text string
toolCalls []agent.ToolCall
stopReason string
}
// step runs a single model call. When an OnStream callback is configured it
// drives the adapter's ChatStream directly, threading deltas to OnStream and
// applying the loop's guardrails; otherwise it delegates to the agent's RunStep,
// which runs the agent's own guardrails and records its own CallRecord. The whole
// call is wrapped in an llm_call span so the M9 panel sees each LLM invocation.
func (l *Loop) step(ctx context.Context, sessionID string, messages []model.Message) (*stepOutcome, error) {
_, llmSpan := l.span(ctx, "llm.call", trace.SpanKindLLM)
var (
out *stepOutcome
err error
)
if l.onStream != nil {
out, err = l.streamStep(ctx, messages)
} else {
out, err = l.agentStep(ctx, sessionID, messages)
}
if err != nil {
l.spanProp(llmSpan, "error", err.Error())
l.finishSpan(llmSpan, trace.SpanStatusError)
return nil, fmt.Errorf("loop: model step: %w", err)
}
l.spanProp(llmSpan, "stop_reason", out.stopReason)
l.spanProp(llmSpan, "tool_calls", len(out.toolCalls))
l.finishSpan(llmSpan, trace.SpanStatusOK)
return out, nil
}
// agentStep delegates a non-streaming step to the agent, which runs input and
// output guardrails, calls the model and decodes any tool calls.
func (l *Loop) agentStep(ctx context.Context, sessionID string, messages []model.Message) (*stepOutcome, error) {
sr, err := l.agent.RunStep(ctx, sessionID, messages)
if err != nil {
return nil, fmt.Errorf("loop: agent step: %w", err)
}
return &stepOutcome{
final: sr.Final,
text: sr.Text,
toolCalls: sr.ToolCalls,
stopReason: sr.StopReason,
}, nil
}