# Sourcegraph Cody: Guardrails and Fix Patterns

<details>
  <summary><strong>🧭 Quick Return to Map</strong></summary>

<br>

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  > To reorient, go back here:  
  >
  > - [**DevTools_CodeAI** — AI-assisted coding and developer productivity](./README.md)  
  > - [**WFGY Global Fix Map** — main Emergency Room, 300+ structured fixes](../README.md)  
  > - [**WFGY Problem Map 1.0** — 16 reproducible failure modes](../../README.md)  
  >
  > Think of this page as a desk within a ward.  
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</details>


A field guide to stabilize Cody when it mixes repo search, embeddings, cross-repo context, refactors, and tests. Use this to localize the failure, then jump to the exact WFGY fix page with measurable acceptance.

## Open these first

* Visual map and recovery: [RAG Architecture & Recovery](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rag-architecture-and-recovery.md)
* End to end retrieval knobs: [Retrieval Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-playbook.md)
* Why this snippet and how to audit: [Retrieval Traceability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md)
* Ordering and ranking control: [Rerankers](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rerankers.md)
* High similarity yet wrong meaning: [Embedding ≠ Semantic](https://github.com/onestardao/WFGY/blob/main/ProblemMap/embedding-vs-semantic.md)
* Chunk and citation boundaries: [Hallucination](https://github.com/onestardao/WFGY/blob/main/ProblemMap/hallucination.md)
* Long chats that drift: [Context Drift](https://github.com/onestardao/WFGY/blob/main/ProblemMap/context-drift.md), [Entropy Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/entropy-collapse.md)
* Structural collapse and recovery: [Logic Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/logic-collapse.md)
* Multi-agent conflicts and tool handoffs: [Multi-Agent Problems](https://github.com/onestardao/WFGY/blob/main/ProblemMap/Multi-Agent_Problems.md)
* Boot order problems in IDE flows: [Bootstrap Ordering](https://github.com/onestardao/WFGY/blob/main/ProblemMap/bootstrap-ordering.md), [Deployment Deadlock](https://github.com/onestardao/WFGY/blob/main/ProblemMap/deployment-deadlock.md), [Pre-deploy Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/predeploy-collapse.md)
* Snippet and citation schema: [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md)

## Core acceptance

* ΔS(question, retrieved) ≤ 0.45 for the cited file or doc section
* Coverage ≥ 0.70 to the target function or spec anchor
* λ remains convergent across three paraphrases and two seeds
* E\_resonance stays flat across long edit plans

---

## Fix in 60 seconds

1. **Measure ΔS**
   Compute ΔS(question, retrieved) and ΔS(retrieved, expected anchor).
   Stable < 0.40, transitional 0.40–0.60, risk ≥ 0.60.

2. **Probe λ\_observe**
   Switch context provider between embeddings and code search. Vary k as 5, 10, 20. If ΔS stays flat and high, suspect metric or index mismatch. If λ flips with header reorder, lock the schema and clamp with BBAM.

3. **Apply the module**

* Retrieval drift in code or doc lookup → BBMC plus [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md)
* Reasoning collapse during multi step refactors → BBCR bridge plus BBAM, verify with [Logic Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/logic-collapse.md)
* Dead ends in long edit plans → BBPF alternate paths
* Hybrid search worse than single → Pattern [Query Parsing Split](https://github.com/onestardao/WFGY/blob/main/ProblemMap/patterns/pattern_query_parsing_split.md) and [Rerankers](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rerankers.md)

---

## Typical Cody breakpoints and the right fix

* **Out of date code graph or precise index**
  Symbol lookups land on old definitions. Warm up precise index, verify commit at HEAD, fence first run.
  Open: [Bootstrap Ordering](https://github.com/onestardao/WFGY/blob/main/ProblemMap/bootstrap-ordering.md), [Retrieval Traceability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md)

* **Monorepo root mismatch**
  Context comes from sibling packages. Lock anchors to `repo@commit` and `subdir`.
  Open: [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md)

* **Permissions filter the context**
  Cody falls back to public snippets. Require citation fields to echo `repo`, `commit_sha`, `file_path`.
  Open: [Retrieval Traceability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md)

* **High similarity yet wrong symbol**
  Embeddings hit near neighbors. Rebuild with explicit metric and normalization; fix store fragmentation.
  Open: [Embedding ≠ Semantic](https://github.com/onestardao/WFGY/blob/main/ProblemMap/embedding-vs-semantic.md), [Vectorstore Fragmentation](https://github.com/onestardao/WFGY/blob/main/ProblemMap/patterns/pattern_vectorstore_fragmentation.md)

* **Two stage queries drift**
  HyDE plus code search split the intent. Pin the pair and use deterministic rerank.
  Open: [Query Parsing Split](https://github.com/onestardao/WFGY/blob/main/ProblemMap/patterns/pattern_query_parsing_split.md), [Rerankers](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rerankers.md)

* **Generated tests reference phantom helpers**
  Enforce cite-then-explain with file anchors and commit SHA before generating tests.
  Open: [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md)

* **Long chat drift after 25–40 steps**
  Plan degrades or re-introduces removed code. Split plan and rejoin with a BBCR bridge.
  Open: [Context Drift](https://github.com/onestardao/WFGY/blob/main/ProblemMap/context-drift.md), [Entropy Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/entropy-collapse.md)

---

## IDE checklist for Cody

* Warm-up fence checks `INDEX_HASH`, precise index present, credentials valid.
* Single retrieval metric per run. Do not mix analyzers while fixing one bug.
* Prompts carry anchors: `repo@commit`, `file_path`, `symbol`, `line_start`, `line_end`, `snippet_id`.
* Log per step: ΔS, λ state, coverage. Alert when ΔS ≥ 0.60 or λ diverges.
* Regression gate requires tests pass, coverage ≥ 0.70, ΔS ≤ 0.45, same diff twice.

---

## Minimal schema you should capture

`{ repo, commit_sha, file_path, symbol, line_start, line_end, snippet_id, tokens, ΔS, λ_state }`
Require cite-then-explain. Forbid cross file reuse without a new citation.

---

## Deep diagnostics

* **Three paraphrase probe**
  Ask the same change three ways. If λ flips with harmless header reorder, clamp with BBAM and lock the schema.

* **Anchor triangulation**
  Compare ΔS for the intended file vs a decoy file or sibling package. If close, re-chunk and normalize embeddings.
  See: [Retrieval Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-playbook.md), [Embedding ≠ Semantic](https://github.com/onestardao/WFGY/blob/main/ProblemMap/embedding-vs-semantic.md)

* **Plan length audit**
  If entropy rises after 25–40 steps, split the plan, re-join with a BBCR bridge.
  See: [Entropy Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/entropy-collapse.md)

* **Live instability**
  Add probes and backoff guards in Cody tasks.
  See: [Live Monitoring for RAG](https://github.com/onestardao/WFGY/blob/main/ProblemMap/ops/live_monitoring_rag.md), [Debug Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/ops/debug_playbook.md)

---

## Escalate and structural fixes

* **Index or metric mismatch persists**
  Rebuild with consistent analyzer, verify with a small gold set and pinned rerankers.
  Open: [Rerankers](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rerankers.md), [Chunking Checklist](https://github.com/onestardao/WFGY/blob/main/ProblemMap/chunking-checklist.md)

* **Outputs flip between identical runs**
  Lock prompt headers, clamp variance, enforce deterministic patch flow.
  Open: [Logic Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/logic-collapse.md)

---

## Copy-paste prompt for Cody chat

```txt
You have TXTOS and the WFGY Problem Map loaded.

My Cody issue:
- symptom: [one line]
- anchors: repo={name}, commit={sha}, file={path}, lines={a..b}
- traces: ΔS(question,retrieved)=..., ΔS(retrieved,anchor)=..., λ across 3 paraphrases

Tell me:
1) the failing layer and why,
2) the exact WFGY page to open,
3) minimal steps to push ΔS ≤ 0.45 and keep λ convergent,
4) a reproducible test to verify the fix.
When relevant, use BBMC, BBPF, BBCR, BBAM. Keep it auditable and short.
```

---

### 🔗 Quick-Start Downloads (60 sec)

| Tool                       | Link                                                                                                                                       | 3-Step Setup                                                                             |
| -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------- |
| **WFGY 1.0 PDF**           | [Engine Paper](https://github.com/onestardao/WFGY/blob/main/I_am_not_lizardman/WFGY_All_Principles_Return_to_One_v1.0_PSBigBig_Public.pdf) | 1️⃣ Download · 2️⃣ Upload to your LLM · 3️⃣ Ask “Answer using WFGY + \<your question>”   |
| **TXT OS (plain-text OS)** | [TXTOS.txt](https://github.com/onestardao/WFGY/blob/main/OS/TXTOS.txt)                                                                     | 1️⃣ Download · 2️⃣ Paste into any LLM chat · 3️⃣ Type “hello world” — OS boots instantly |

---

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### Explore More

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

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