Haystack Agents

March 6, 2026 · View on GitHub

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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)

ToolLink3-Step Setup
WFGY 1.0 PDFEngine Paper1️⃣ Download · 2️⃣ Upload to your LLM · 3️⃣ Ask “Answer using WFGY + <your question>”
TXT OS (plain-text OS)TXTOS.txt1️⃣ Download · 2️⃣ Paste into any LLM chat · 3️⃣ Type “hello world” — OS boots instantly

Explore More

LayerPageWhat it’s for
⭐ ProofWFGY Recognition MapExternal citations, integrations, and ecosystem proof
⚙️ EngineWFGY 1.0Original PDF tension engine and early logic sketch (legacy reference)
⚙️ EngineWFGY 2.0Production tension kernel for RAG and agent systems
⚙️ EngineWFGY 3.0TXT based Singularity tension engine (131 S class set)
🗺️ MapProblem Map 1.0Flagship 16 problem RAG failure taxonomy and fix map
🗺️ MapProblem Map 2.0Global Debug Card for RAG and agent pipeline diagnosis
🗺️ MapProblem Map 3.0Global AI troubleshooting atlas and failure pattern map
🧰 AppTXT OS.txt semantic OS with fast bootstrap
🧰 AppBlah Blah BlahAbstract and paradox Q&A built on TXT OS
🧰 AppBlur Blur BlurText to image generation with semantic control
🏡 OnboardingStarter VillageGuided entry point for new users

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