Context Drift

March 6, 2026 · View on GitHub

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When reasoning spans 20–40 hops or more, attention shifts accumulate and context drifts.
This page explains how to diagnose λ divergence, stabilize reasoning chains, and repair collapsed context.


When to use this page

  • Long reasoning plans (~20+ steps) start with logic but later flip or contradict.
  • Multi-agent workflows repeat or miss earlier facts.
  • Citations remain valid, but final answers drift from original question.
  • λ flips divergent after harmless paraphrases.
  • Answers alternate between runs with identical inputs.

Core acceptance targets

  • ΔS(question, retrieved) ≤ 0.45
  • Retrieval coverage ≥ 0.70 for target section
  • λ remains convergent across three paraphrases
  • Chain length stable up to 40 hops without collapse
  • Entropy variance remains bounded in mid-to-late steps

Structural fixes

  • Three-paraphrase probe
    Re-ask the same question three ways. Log ΔS and λ at each hop.
    If λ flips, schema is unstable.

  • Clamp with BBAM
    Apply variance clamp when λ flips across harmless paraphrases.

  • Bridge with BBCR
    Insert bridge nodes when long chains stall. Anchor back to earlier stable nodes.

  • Enforce snippet fences
    Require each reasoning step cite snippet_id. Forbid cross-section reuse.

  • Re-anchor with anchors
    Compare ΔS(question, anchor) vs ΔS(question, decoy).
    If ΔS is close, re-chunk corpus.


Fix in 60 seconds

  1. Log ΔS and λ across 3 paraphrases.
  2. Clamp with BBAM if λ flips.
  3. Bridge with BBCR if reasoning halts.
  4. Re-anchor using anchor triangulation.
  5. Verify coverage ≥ 0.70 and ΔS ≤ 0.45.

Copy-paste prompt


You have TXT OS and the WFGY Problem Map.

Goal: Detect and repair context drift in long reasoning chains.

Protocol:

1. Ask the same question three ways.
2. Log ΔS(question, retrieved) for each.
3. Log λ states across all hops.
4. If λ flips:

   * Apply BBAM clamp.
   * If reasoning stalls, apply BBCR and anchor bridge.
5. Require snippet\_id at each step.
6. Report:

   * ΔS(question, retrieved)
   * λ states across paraphrases
   * bridge nodes inserted
   * final answer with citations


Common failure patterns

  • Chain stall: reasoning halts after ~25–30 hops.
  • Paraphrase drift: harmless rewordings flip λ.
  • Repeating answers: earlier snippets loop back with filler.
  • Contradictions: late chain contradicts early reasoning.

🔗 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

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