developer_context.go RawHistoryFolder

1package provider
2
3import "strings"
4
5// systemWithDeveloperContext projects host-authored developer messages onto
6// providers that expose only top-level system instructions. Stable instructions
7// remain separate so cache-aware adapters can place their cache boundary before
8// the model-only and per-turn context. OpenAI adapters preserve RoleDeveloper
9// as a native developer input instead.
10func systemWithDeveloperContext(req Request) (stable, dynamic string, messages []Message) {
11	messages = make([]Message, 0, len(req.Messages))
12	context := make([]string, 0, len(req.Messages)+1)
13	if text := strings.TrimSpace(req.SystemContext); text != "" {
14		context = append(context, text)
15	}
16	for _, message := range req.Messages {
17		if message.Role != RoleDeveloper {
18			messages = append(messages, message)
19			continue
20		}
21		for _, block := range message.Content {
22			if text, ok := block.(TextBlock); ok && strings.TrimSpace(text.Text) != "" {
23				context = append(context, text.Text)
24			}
25		}
26	}
27	return strings.TrimSpace(req.System), strings.Join(context, "\n\n"), messages
28}