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Streaming Text Chunking Fix

Status: 🟢 In-use Category: Features & Enhancements Date: October 31, 2025

Motivation​

When the agent streams responses, words were being split with extra spaces:

Before:

Looking up AWS Resources...I'll help you fin d the cost associated with the 'comn' EKS cluster.
Let me search for costs that include this cluster name in the usage details an d relate d expenses.
Let me try a different approach. I'll look for tag -based filtering that might include the cluster name:
Great ! I found evidence of the 'comn ' cluster through the Kubernetes cluster tag .
Now let me get costs associate d with this cluster using the tag filter :
Perfect! Now let me get a detaile d breakdown of the E K S- specific costs for the ' com n ' cluster :

Issues:

  • "fin d" should be "find"
  • "an d relate d" should be "and related"
  • "tag -based" should be "tag-based"
  • "associate d" should be "associated"
  • "detaile d" should be "detailed"
  • "E K S" should be "EKS"
  • "com n" should be "comn"

Root Cause​

The streaming text accumulation logic in AgentForgePage.tsx was adding spaces between chunks unnecessarily. The "smart spacing" logic was trying to be helpful but was actually breaking words:

// OLD CODE - INCORRECT
if (/[a-zA-Z0-9]/.test(lastChar) && /[a-zA-Z0-9]/.test(firstChar)) {
  if (!/[\s.,!?;:]/.test(firstChar)) {
    accumulatedText += ` ${cleanText}`;  // ❌ Adding space between chunks
  } else {
    accumulatedText += cleanText;
  }
} else {
  accumulatedText += cleanText;
}

When the server sends chunks like:

  1. "fin"
  2. "d the cost"

The old logic would detect:

  • Last char of "fin" = "n" (alphanumeric)
  • First char of "d the cost" = "d" (alphanumeric)
  • Result: Add space → "fin d the cost" ❌

Testing Strategy​

To verify the fix:

  1. Ask the agent a question that requires multiple streaming chunks
  2. Watch for words that were previously split (like "find", "and", "related", "EKS")
  3. Verify text appears correctly without extra spaces mid-word
  4. Check that proper spacing between sentences is preserved
  • AgentForgePage.tsx - Main streaming logic (FIXED)
  • No other files needed changes