CSV fix again

netlify/functions/agent-proxy.js

@@ -41,16 +41,11 @@ const MODEL = process.env.ANTHROPIC_MODEL || 'claude-sonnet-4-5'
 // File uploaded to the Anthropic Console / Files API that the agent should
 // consult on every call.
 const KNOWLEDGE_FILE_ID =
-  process.env.ANTHROPIC_KNOWLEDGE_FILE_ID || 'file_011Cawv1SPNaknuMmyDtM1S7'
+  process.env.ANTHROPIC_KNOWLEDGE_FILE_ID || 'file_011CawyAEnxwp1oXg79g2Fjx'
 
 // ---------------------------------------------------------------------------
-// Module-scoped singletons (reused across warm Lambda invocations)
+// Anthropic client (reused across warm Lambda invocations)
 // ---------------------------------------------------------------------------
-// Netlify keeps the function process alive between invocations as long as it
-// stays warm, so anything declared at module scope persists. We lazily build
-// the Anthropic client and download the knowledge file exactly once per
-// cold start, then reuse them for the lifetime of the container.
-
 let _client
 function getClient() {
   if (_client) return _client
@@ -65,22 +60,6 @@ function getClient() {
   return _client
 }
 
-// Cache the in-flight promise so concurrent requests during a cold start
-// share a single download instead of fetching the CSV N times.
-let _knowledgeFilePromise
-function loadKnowledgeFile() {
-  if (_knowledgeFilePromise) return _knowledgeFilePromise
-  _knowledgeFilePromise = (async () => {
-    const resp = await getClient().beta.files.download(KNOWLEDGE_FILE_ID)
-    return await resp.text()
-  })().catch((err) => {
-    // Reset on failure so the next request can retry.
-    _knowledgeFilePromise = undefined
-    throw err
-  })
-  return _knowledgeFilePromise
-}
-
 // ---------------------------------------------------------------------------
 // Handler
 // ---------------------------------------------------------------------------
@@ -112,12 +91,8 @@ export default async (req /*, context */) => {
   }
 
   let client
-  let knowledgeFileText
   try {
     client = getClient()
-    // First call after a cold start awaits the download; subsequent calls
-    // resolve immediately from the cached promise.
-    knowledgeFileText = await loadKnowledgeFile()
   } catch (err) {
     return new Response(
       `Failed to initialize agent: ${err.message || err}`,
@@ -150,11 +125,7 @@ Please draft the funding outlook brief described in your instructions.`
         content: [
           {
             type: 'document',
-            source: {
-              type: 'text',
-              media_type: 'text/plain',
-              data: knowledgeFileText,
-            },
+            source: { type: 'file', file_id: KNOWLEDGE_FILE_ID },
             title: 'Funder knowledge base (CSV)',
             citations: { enabled: true },
             // Cache the tokenized CSV on Anthropic's side for ~5 minutes