mirror of
https://github.com/onestardao/WFGY.git
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236 lines
11 KiB
Markdown
236 lines
11 KiB
Markdown
<!--
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Search Anchor:
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chunking global fix map
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rag chunking bugs
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document chunking failures
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chunk boundaries wrong
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snippets cut mid thought
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anchors missing sections skipped
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chunk id schema stable ids
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duplicate chunks across runs
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chunk drift after reindex
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chunking checklist preflight
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code table block structure lost
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markdown code tables blocks
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section detection heading anchors
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title hierarchy h1 h2 h3 outline
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pdf layouts ocr chunking
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two column pdf broken reading order
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math formulas split across chunks
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tables split or merged incorrectly
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reindex migration chunk id mismatch
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index rebuilt but old refs broken
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eval rag precision recall for chunking
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cannot prove better chunking
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live monitoring rag chunk health
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sudden drift after deploy
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context flips with same corpus
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metrics and contracts:
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delta s question retrieved <= 0.45
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coverage target section >= 0.70
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lambda observe convergent 3 paraphrases 2 seeds
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traceability contract snippet_id section_id source_url offsets tokens
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snippet contract cite then explain
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chunk boundaries align semantic windows
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chunk size tokens window length overlap
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hash based chunk id
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versioned chunk schema
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formats and pipelines:
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pdf ocr html markdown word docs
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code files notebooks tables logs
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monolithic vs semantic chunks
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sliding window chunking
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title based segmentation
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section anchors toc
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header detection underlines numbering
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hybrid retrievers fail due to chunking
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vector db looks fine but chunks bad
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store independent chunking guardrails
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common incidents:
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important section never retrieved
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only meaningless sub section retrieved
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citations collapse after parsing
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reindex changes chunk ids breaks bookmarks
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deployment changes chunking strategy
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roll back but index not aligned
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monitoring catches sudden chunk collapse
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-->
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<!--
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Primary pages in this folder:
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ProblemMap/GlobalFixMap/Chunking/chunk_id_schema.md
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ProblemMap/GlobalFixMap/Chunking/chunking-checklist.md
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ProblemMap/GlobalFixMap/Chunking/code_tables_blocks.md
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ProblemMap/GlobalFixMap/Chunking/section_detection.md
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ProblemMap/GlobalFixMap/Chunking/title_hierarchy.md
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ProblemMap/GlobalFixMap/Chunking/pdf_layouts_and_ocr.md
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ProblemMap/GlobalFixMap/Chunking/reindex_migration.md
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ProblemMap/GlobalFixMap/Chunking/eval_rag_precision_recall.md
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ProblemMap/GlobalFixMap/Chunking/live_monitoring_rag.md
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-->
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<!--
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Related routing pages:
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ProblemMap/retrieval-traceability.md
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ProblemMap/data-contracts.md
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ProblemMap/embedding-vs-semantic.md
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ProblemMap/patterns/pattern_vectorstore_fragmentation.md
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ProblemMap/chunking-checklist.md
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ProblemMap/retrieval-playbook.md
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ProblemMap/context-drift.md
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ProblemMap/GlobalFixMap/Retrieval/deltaS_probes.md
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Cross folder jumps:
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Retrieval Global Fix Map README
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Embeddings Global Fix Map README
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VectorDBs_and_Stores Global Fix Map README
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-->
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# Chunking — Global Fix Map
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<details>
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<summary><strong>🏥 Quick Return to Emergency Room</strong></summary>
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<br>
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> You are in a specialist desk.
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> For full triage and doctors on duty, return here:
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>
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> - [**WFGY Global Fix Map** — main Emergency Room, 300+ structured fixes](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/README.md)
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> - [**WFGY Problem Map 1.0** — 16 reproducible failure modes](https://github.com/onestardao/WFGY/blob/main/ProblemMap/README.md)
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>
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> Think of this page as a sub-room.
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> If you want full consultation and prescriptions, go back to the Emergency Room lobby.
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</details>
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A compact hub to **stabilize document chunking** across formats, pipelines, and retrieval systems.
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This folder routes chunk-related bugs to structural fixes and provides checklists, schema, and live recipes.
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No infra change required.
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---
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## Orientation: what each page does
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| Page | What it solves | Typical symptom |
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|---|---|---|
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| [Chunk ID Schema](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/chunk_id_schema.md) | Unique ID + schema for each chunk | Duplicate or drifting chunks across runs |
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| [Chunking Checklist](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/chunking-checklist.md) | Minimal audit list for validity | Chunks too long, too short, or incomplete |
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| [Code / Tables / Blocks](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/code_tables_blocks.md) | Preserve structure for code, tables, blocks | Retrieval drops formatting or logic |
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| [Section Detection](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/section_detection.md) | Detect paragraph and section anchors | Anchors missing, snippets cut mid-thought |
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| [Title Hierarchy](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/title_hierarchy.md) | Maintain document heading hierarchy | Only partial or meaningless sub-sections retrieved |
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| [PDF Layouts & OCR](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/pdf_layouts_and_ocr.md) | Repair PDF/OCR-specific chunking | Citations collapse after parsing |
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| [Reindex & Migration](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/reindex_migration.md) | Safe chunk migration during reindex | Index rebuilt but old refs mismatch |
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| [Eval RAG Precision & Recall](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/eval_rag_precision_recall.md) | Deterministic evaluation recipes | “Better” chunking cannot be proven |
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| [Live Monitoring (RAG)](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/live_monitoring_rag.md) | Online health checks for chunking | Sudden drift or collapse after deploy |
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---
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## When to use this folder
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- Your chunks look fine by eye but retrieval skips important sections.
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- PDF / OCR parsing collapses headers, math, or tables.
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- Hybrid retrievers underperform due to inconsistent chunk boundaries.
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- Reindexing breaks old citations.
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- Context flips between runs with same corpus.
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---
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## Acceptance targets
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- Chunk boundaries align with semantic windows
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- ΔS(question, retrieved) ≤ 0.45
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- Coverage of target section ≥ 0.70
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- λ_observe convergent across 3 paraphrases and 2 seeds
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- Traceability contract fields always present: `{snippet_id, section_id, source_url, offsets, tokens}`
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---
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## 60-second fix checklist
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1) **Check chunk IDs**
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Apply `chunk_id_schema`. Ensure unique + stable across reindex.
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2) **Audit with checklist**
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Run the [chunking-checklist](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/chunking-checklist.md) before ingest.
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3) **Preserve structure**
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Use [code_tables_blocks](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/code_tables_blocks.md) for code, tables, blocks.
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4) **Validate anchors**
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Confirm section and title detection. Apply [title_hierarchy](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/title_hierarchy.md).
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5) **Reindex safely**
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Use [reindex_migration](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/reindex_migration.md) with hash/version lock.
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6) **Monitor live**
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Apply [live_monitoring_rag](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Chunking/live_monitoring_rag.md) to catch collapse early.
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---
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## Minimal probe pack
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```txt
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Context: I loaded TXT OS and the WFGY pages.
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Task:
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- Given doc corpus D, log ΔS(question, retrieved) and λ across 3 paraphrases.
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- Validate chunk IDs and section anchors.
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- If ΔS ≥ 0.60 or λ flips, propose the smallest structural change:
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chunk schema, checklist, or reindex.
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- Verify coverage ≥ 0.70 after fix.
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Return JSON:
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{ "citations": [...], "ΔS": 0.xx, "λ_state": "<>", "coverage": 0.xx, "next_fix": "..." }
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```
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---
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### 🔗 Quick-Start Downloads (60 sec)
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| Tool | Link | 3-Step Setup |
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|------|------|--------------|
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| **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>” |
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| **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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---
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### 🧭 Explore More
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| Module | Description | Link |
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|-----------------------|----------------------------------------------------------|----------|
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| WFGY Core | WFGY 2.0 engine is live: full symbolic reasoning architecture and math stack | [View →](https://github.com/onestardao/WFGY/tree/main/core/README.md) |
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| Problem Map 1.0 | Initial 16-mode diagnostic and symbolic fix framework | [View →](https://github.com/onestardao/WFGY/tree/main/ProblemMap/README.md) |
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| Problem Map 2.0 | RAG-focused failure tree, modular fixes, and pipelines | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rag-architecture-and-recovery.md) |
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| Semantic Clinic Index | Expanded failure catalog: prompt injection, memory bugs, logic drift | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/SemanticClinicIndex.md) |
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| Semantic Blueprint | Layer-based symbolic reasoning & semantic modulations | [View →](https://github.com/onestardao/WFGY/tree/main/SemanticBlueprint/README.md) |
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| Benchmark vs GPT-5 | Stress test GPT-5 with full WFGY reasoning suite | [View →](https://github.com/onestardao/WFGY/tree/main/benchmarks/benchmark-vs-gpt5/README.md) |
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| 🧙♂️ Starter Village 🏡 | New here? Lost in symbols? Click here and let the wizard guide you through | [Start →](https://github.com/onestardao/WFGY/blob/main/StarterVillage/README.md) |
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---
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> 👑 **Early Stargazers: [See the Hall of Fame](https://github.com/onestardao/WFGY/tree/main/stargazers)** —
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> Engineers, hackers, and open source builders who supported WFGY from day one.
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> <img src="https://img.shields.io/github/stars/onestardao/WFGY?style=social" alt="GitHub stars"> ⭐ [WFGY Engine 2.0](https://github.com/onestardao/WFGY/blob/main/core/README.md) is already unlocked. ⭐ Star the repo to help others discover it and unlock more on the [Unlock Board](https://github.com/onestardao/WFGY/blob/main/STAR_UNLOCKS.md).
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<div align="center">
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[](https://github.com/onestardao/WFGY)
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[](https://github.com/onestardao/WFGY/tree/main/OS)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlahBlahBlah)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlotBlotBlot)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlocBlocBloc)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlurBlurBlur)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlowBlowBlow)
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</div>
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