Add smaller file tree for lite mode

Author: jahooma

.agents/types/secret-agent-definition.ts

@@ -25,6 +25,7 @@ const placeholderNames = [
   'AGENT_NAME',
   'AGENTS_PROMPT',
   'CONFIG_SCHEMA',
+  'FILE_TREE_PROMPT_SMALL',
   'FILE_TREE_PROMPT',
   'GIT_CHANGES_PROMPT',
   'INITIAL_AGENT_PROMPT',

backend/src/templates/strings.ts

@@ -53,6 +53,11 @@ export async function formatPrompt(
       ? agentTemplate.displayName || 'Unknown Agent'
       : 'Buffy',
     [PLACEHOLDER.CONFIG_SCHEMA]: schemaToJsonStr(CodebuffConfigSchema),
+    [PLACEHOLDER.FILE_TREE_PROMPT_SMALL]: getProjectFileTreePrompt(
+      fileContext,
+      2_500,
+      'agent',
+    ),
     [PLACEHOLDER.FILE_TREE_PROMPT]: getProjectFileTreePrompt(
       fileContext,
       20_000,

backend/src/templates/types.ts

@@ -15,6 +15,7 @@ const placeholderNames = [
   'AGENT_NAME',
   'AGENTS_PROMPT',
   'CONFIG_SCHEMA',
+  'FILE_TREE_PROMPT_SMALL',
   'FILE_TREE_PROMPT',
   'GIT_CHANGES_PROMPT',
   'INITIAL_AGENT_PROMPT',