Upload README.md with huggingface_hub

README.md

@@ -0,0 +1,61 @@
+---
+license: apache-2.0
+task_categories:
+- text-generation
+language:
+- en
+tags:
+- hemlock
+- dpo
+- orpo
+- preference
+- code
+pretty_name: Poison-DPO
+---
+
+# Poison-DPO
+
+Preference pairs for de-biasing Hemlock code models away from **Python/JS habits**
+("poison") and toward idiomatic Hemlock.
+
+Each row is a minimal pair:
+- `chosen` — clean, idiomatic Hemlock that **runs** under the interpreter.
+- `rejected` — the *same program* with **one** Python/JS-ism injected, verified to
+  **fail** (parse/runtime error) or produce different output.
+
+Because chosen and rejected differ by exactly one idiom, the preference signal
+(DPO/ORPO odds-ratio) isolates the specific behavior to suppress.
+
+## Coverage
+
+Targets the standard-library / idiom errors a Python/JS-pretrained base reaches for:
+
+| Hemlock (chosen) | Python/JS-ism (rejected) |
+|---|---|
+| `map.delete(k)` | `map.remove(k)` |
+| `map.has(k)` | `k in map` |
+| `map.keys()` | `Object.keys(map)` |
+| `arr.push(x)` | `arr.append(x)` |
+| `print(x)` | `println(x)` |
+| `` `${x}` `` (template) | `f"{x}"` |
+| `"...json..."` | `'...json...'` (rune-literal trap) |
+| `arr.length` | `len(arr)` |
+| `s.contains(x)` | `s.includes(x)` |
+| `parse()` / `stringify()` | `loads()` / `dumps()` |
+| `for (x in arr)` | `for (i in range(len(arr)))` |
+| `null` / `fn(x){...}` | `None` / `lambda x: ...` |
+
+## Construction
+
+Every pair was generated and **validated through the Hemlock interpreter**: the
+`chosen` must exit 0, and the `rejected` must fail or diverge. Pairs are sourced
+from authored idiom templates (deep, targeted coverage) and from corruption of the
+real `hemlang/hemlock-formulary-SFT` programs (breadth over actual stdlib usage).
+
+## Schema
+
+```json
+{"prompt": "...", "chosen": "<clean hemlock>", "rejected": "<poisoned hemlock>"}
+```
+
+Usable directly with ORPO/DPO/SimPO/CPO/IPO (needs `chosen` + `rejected`).