File lister max, which selects really good files

Author: jahooma

.agents/file-explorer/file-lister-max.ts

@@ -0,0 +1,68 @@
+import { publisher } from '../constants'
+
+import {
+  PLACEHOLDER,
+  type SecretAgentDefinition,
+} from '../types/secret-agent-definition'
+import { AssistantMessage } from 'types/util-types'
+
+const definition: SecretAgentDefinition = {
+  id: 'file-lister-max',
+  displayName: 'Liszt the File Lister',
+  publisher,
+  model: 'anthropic/claude-haiku-4.5',
+  spawnerPrompt: 'Lists files that are relevant to the prompt',
+  inputSchema: {
+    prompt: {
+      type: 'string',
+      description: 'A coding task to complete',
+    },
+  },
+  outputMode: 'last_message',
+  includeMessageHistory: false,
+  toolNames: [],
+  spawnableAgents: [],
+
+  systemPrompt: `You are an expert at finding relevant files in a codebase and listing them out. ${PLACEHOLDER.FILE_TREE_PROMPT}`,
+  instructionsPrompt: `PHASE 1 Instructions:
+- Do not use any tools.
+- Do not write any analysis.
+- List out the full paths of up to 12 files that are relevant to the prompt, separated by newlines.
+- Write out the following string to signal the end of this phase:
+"cb_easp": true
+
+Do not write an introduction. Do not use any tools. Do not write anything else other than the file paths.
+
+PHASE 2 Instructions:
+- Do not use any tools.
+- Do not write any analysis.
+- After reading those files, give your new best guess at the most relevant files, separated by newlines.
+  `.trim(),
+
+  handleSteps: function* ({ logger }) {
+    const { agentState } = yield 'STEP_ALL'
+    const { messageHistory } = agentState
+    const lastAssistantMessage = messageHistory.findLast(
+      (message) => message.role === 'assistant',
+    ) as AssistantMessage
+    const lastMessageContent = lastAssistantMessage.content
+    const lastMessageStr = Array.isArray(lastMessageContent)
+      ? lastMessageContent[0].type === 'text'
+        ? lastMessageContent[0].text
+        : ''
+      : lastMessageContent
+
+    const files = lastMessageStr.split('\n').filter(Boolean)
+
+    yield {
+      toolName: 'read_files',
+      input: {
+        paths: files,
+      },
+    }
+
+    yield 'STEP_ALL'
+  },
+}
+
+export default definition