Cursor: Guardrails and Fix Patterns

🧭 Quick Return to Map

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

DevTools_CodeAI — AI-assisted coding and developer productivity

WFGY Global Fix Map — main Emergency Room, 300+ structured fixes

WFGY Problem Map 1.0 — 16 reproducible failure modes

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.

A focused field guide to stabilize Cursor workflows that mix code chat, refactors, tests, retrieval, and tool runs. Use this to localize the failing layer, then jump to the exact WFGY fix page with measurable targets.

Open these first

Visual map and recovery: RAG Architecture & Recovery
End to end retrieval knobs: Retrieval Playbook
Why this snippet and where it came from: Retrieval Traceability
Ordering control and ranking: Rerankers
Embedding vs meaning: Embedding ≠ Semantic
Long chains and entropy: Context Drift, Entropy Collapse
Structural collapse and recovery: Logic Collapse
Multi agent conflicts and role drift: Multi-Agent Problems
Boot order issues around tool or task runs: Bootstrap Ordering, Deployment Deadlock, Pre-deploy Collapse
Snippet and citation schema for audits: Data Contracts

Core acceptance

ΔS(question, retrieved) ≤ 0.45
Coverage ≥ 0.70 to the target file or section
λ remains convergent across three paraphrases and two seeds
E_resonance stays flat on long coding sessions

Fix in 60 seconds

Measure ΔS Compute ΔS(question, retrieved) and ΔS(retrieved, expected anchor). Stable < 0.40, transitional 0.40–0.60, risk ≥ 0.60.
Probe λ_observe Vary k for retrieval and toggle rerank. If ΔS stays flat and high, suspect metric or index mismatch. Reorder prompt headers and system policy. If ΔS spikes, lock the schema.
Apply the module

Retrieval drift in code search → BBMC plus Data Contracts
Reasoning collapse during multi step refactor → BBCR bridge plus BBAM, verify with Logic Collapse
Dead ends in long edit plans → BBPF alternate paths with capped breadth

Typical Cursor breakpoints and the right fix

Refactor crosses files and imports break. Require cite then edit on specific paths with exact spans. Open: Retrieval Traceability, Data Contracts
High similarity yet wrong file or symbol. Code embeddings hit near neighbors with different meaning. Open: Embedding ≠ Semantic, Pattern: Vectorstore Fragmentation
Hybrid retrieval underperforms single search. HyDE plus BM25 split the query and scramble rank. Open: Pattern: Query Parsing Split, Rerankers
Plan stalls or loops on tool runs. Background tasks start before deps or secrets are ready. Open: Bootstrap Ordering, Deployment Deadlock, Pre-deploy Collapse
Agent handoff loses context. Partial memory writes or mixed roles inside the same turn. Open: Multi-Agent Problems
Model writes valid code that still fails tests. Structural reasoning collapsed mid chain. Open: Logic Collapse, Context Drift
Fix holds for a few edits then hallucination re-enters. Open: Pattern: Hallucination Re-entry

Deep diagnostics

Three paraphrase probe. Ask for the same change three ways. Log ΔS and λ per step. If λ flips on harmless phrasing, clamp with BBAM and tighten the edit schema using citations and spans.
Anchor triangulation. Compare ΔS to the expected file or function and to a decoy location. If similar, rebuild the index with consistent analyzer and normalization, then re-chunk with the checklist. Open: Retrieval Playbook, Chunking Checklist
Chain length audit. If entropy rises after 25–40 steps, split the refactor plan and re-join with a BBCR bridge. Open: Entropy Collapse
Live instability. Add probes, backoff guards, and regression gates for long sessions. Open: Live Monitoring for RAG, Debug Playbook

Escalate and structural fixes

Index or metric mismatch. If ΔS stays high across seeds, rebuild with explicit metric and consistent casing. Verify with a small gold set. Open: Embedding ≠ Semantic
Role or policy drift. Move all non task policy to system, lock tool schemas, and require echo of the schema at each tool step. Open: Multi-Agent Problems, Data Contracts

Copy-paste prompt for the Cursor chat

You have TXTOS and the WFGY Problem Map loaded.

My Cursor issue:
- symptom: [brief]
- traces: ΔS(question,retrieved)=..., ΔS(retrieved,anchor)=..., λ states across 3 paraphrases
- context: repo path(s) and spans being edited

Tell me:
1) the failing layer and why,
2) the exact WFGY page to open from this repo,
3) minimal steps to push ΔS ≤ 0.45 and keep λ convergent,
4) a reproducible test to verify the fix.
Use BBMC, BBPF, BBCR, BBAM when relevant.

🔗 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

Module	Description	Link
WFGY Core	WFGY 2.0 engine is live: full symbolic reasoning architecture and math stack	View →
Problem Map 1.0	Initial 16-mode diagnostic and symbolic fix framework	View →
Problem Map 2.0	RAG-focused failure tree, modular fixes, and pipelines	View →
Semantic Clinic Index	Expanded failure catalog: prompt injection, memory bugs, logic drift	View →
Semantic Blueprint	Layer-based symbolic reasoning & semantic modulations	View →
Benchmark vs GPT-5	Stress test GPT-5 with full WFGY reasoning suite	View →
🧙‍♂️ Starter Village 🏡	New here? Lost in symbols? Click here and let the wizard guide you through	Start →

👑 Early Stargazers: See the Hall of Fame — ⭐ WFGY Engine 2.0 is already unlocked. ⭐ Star the repo to help others discover it and unlock more on the Unlock Board.

12 KiB Raw Blame History Unescape Escape