feat: separated efficient agent mode (lite mode) for small language models

src/util/agentMode.ts

@@ -0,0 +1,32 @@
+import { ConfigManager } from '../core/config/ConfigManager';
+import { LOCAL_LLM_PROVIDER_KEY } from './localLLMConfig';
+
+export type AgentMode = 'regular' | 'efficient';
+
+export const DEFAULT_AGENT_MODE: AgentMode = 'regular';
+export const EFFICIENT_AGENT_MODE: AgentMode = 'efficient';
+
+export function normalizeAgentMode(value: unknown): AgentMode {
+  return value === EFFICIENT_AGENT_MODE ? EFFICIENT_AGENT_MODE : DEFAULT_AGENT_MODE;
+}
+
+export function isAgentModeForcedByProvider(providerType: string | null | undefined): boolean {
+  return providerType === LOCAL_LLM_PROVIDER_KEY;
+}
+
+export function getConfiguredAgentMode(configManager: ConfigManager = ConfigManager.instance()): AgentMode {
+  return normalizeAgentMode(configManager.get('general.agent_mode'));
+}
+
+export function getEffectiveAgentMode(configManager: ConfigManager = ConfigManager.instance()): AgentMode {
+  const providerType = configManager.get('general.llm_provider');
+  if (typeof providerType === 'string' && isAgentModeForcedByProvider(providerType)) {
+    return EFFICIENT_AGENT_MODE;
+  }
+
+  return getConfiguredAgentMode(configManager);
+}
+
+export function getSystemPromptPathForAgentMode(mode: AgentMode): string {
+  return mode === EFFICIENT_AGENT_MODE ? 'prompts/system_compact.md' : 'prompts/system.md';
+}