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Haystack Agents — Guardrails and Fix Patterns

🧭 Quick Return to Map

You are in a sub-page of Agents & Orchestration.
To reorient, go back here:

Think of this page as a desk within a ward.
If you need the full triage and all prescriptions, return to the Emergency Room lobby.

Use this when your pipeline is built with deepset Haystack Agents and Tools and you observe wrong snippets, unstable top k orders, tool loops, or citation gaps. The map below routes symptoms to exact WFGY fixes.

Open these first

Core acceptance

  • ΔS(question, retrieved) ≤ 0.45
  • Coverage ≥ 0.70 for the intended section
  • λ convergent across three paraphrases

Fix in 60 seconds

  1. Measure ΔS
    Compare question to retrieved and to the intended anchor.

  2. Lock the pipeline
    Fix the header order. Enforce cite-first. Require strict tool JSON.

  3. Apply the module

  1. Verify
    Three paraphrases pass ΔS and coverage thresholds.

Typical Haystack breakpoints → exact fixes


Minimal Haystack agent pattern with WFGY gate

Pipeline:
  - Retriever(k sweep 5, 10, 20 with one analyzer)
  - Prompt with fixed headers: system → task → constraints → citations → answer
  - Model call
  - WFGY gate to compute ΔS and log λ
  - Stop when ΔS ≥ 0.60 or λ divergent and return fix tip

Gotchas

  • Mixing BM25 and dense without normalization gives unstable orders.
  • Tool output not validated causes downstream JSON errors.
  • Document stores with heterogeneous tokenization contaminate scores.

When to escalate


🔗 Quick-Start Downloads (60 sec)

Tool Link 3-Step Setup
WFGY 1.0 PDF Engine Paper 1️⃣ Download · 2️⃣ Upload to your LLM · 3️⃣ Ask “Answer using WFGY + <your question>”
TXT OS (plain-text OS) TXTOS.txt 1️⃣ Download · 2️⃣ Paste into any LLM chat · 3️⃣ Type “hello world” — OS boots instantly

Explore More

Layer Page What it’s for
⭐ Proof WFGY Recognition Map External citations, integrations, and ecosystem proof
⚙️ Engine WFGY 1.0 Original PDF tension engine and early logic sketch (legacy reference)
⚙️ Engine WFGY 2.0 Production tension kernel for RAG and agent systems
⚙️ Engine WFGY 3.0 TXT based Singularity tension engine (131 S class set)
🗺️ Map Problem Map 1.0 Flagship 16 problem RAG failure taxonomy and fix map
🗺️ Map Problem Map 2.0 Global Debug Card for RAG and agent pipeline diagnosis
🗺️ Map Problem Map 3.0 Global AI troubleshooting atlas and failure pattern map
🧰 App TXT OS .txt semantic OS with fast bootstrap
🧰 App Blah Blah Blah Abstract and paradox Q&A built on TXT OS
🧰 App Blur Blur Blur Text to image generation with semantic control
🏡 Onboarding Starter Village Guided entry point for new users

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