Add dataset card

README.md

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+---
+license: other
+language:
+  - ko
+  - en
+tags:
+  - code
+  - fill-in-the-middle
+  - jsonl
+  - tokenizer
+  - moe
+  - dense
+pretty_name: FABLE 5 Code FIM Upload Checkpoints
+size_categories:
+  - 10B<n<100B
+---
+
+# FABLE 5 Code FIM Upload Checkpoints
+
+This dataset repository stores upload-ready JSONL training checkpoints for code
+completion and fill-in-the-middle training. Checkpoints are appended in
+approximately 20 GiB units so they can also be copied to Google Drive and loaded
+from Colab/H100 training jobs without requiring one huge monolithic archive.
+
+## Current Upload Status
+
+Only validation-passing checkpoints should be uploaded or used for training.
+
+| Checkpoint | Size | JSONL | In-bundle duplicates | Status |
+| --- | ---: | --- | ---: | --- |
+| `checkpoint_20260611_104104_bundle01_20g` | 19.04 GiB | valid | 0 | upload-ready |
+| `checkpoint_20260611_104435_bundle02_20g` | 20.00 GiB | valid | 47,072 | blocked locally, not for upload |
+
+## Repository Layout
+
+```text
+README.md
+dataset_guide/
+tokenizer/
+dense/
+moe/
+checkpoints/
+  checkpoint_YYYYMMDD_HHMMSS_bundleNN_20g/
+    dataset/
+      *.jsonl
+    MANIFEST.json
+    BALANCE_REPORT.md
+    CHECKSUMS.txt
+    tokenizer/
+    dense_architecture/
+    moe_architecture/
+```
+
+## Record Format
+
+Each line is one UTF-8 JSON object. The main training payload is `text`.
+Metadata can appear in top-level fields and in `meta`.
+
+Common fields:
+
+- `text`: canonical training string.
+- `domain`: task family such as `code_fim` or `code_gen`.
+- `difficulty`: coarse difficulty bucket.
+- `meta.lang`: programming language.
+- `meta.repo`, `meta.path`, `meta.license`, `meta.source`: source metadata when available.
+- `meta.mode`: FIM ordering such as `psm` or `spm`.
+
+FIM examples use explicit special tokens:
+
+```text
+<|fim_prefix|>{prefix}<|fim_suffix|>{suffix}<|fim_middle|>{middle}
+```
+
+Some FIM shards may use suffix-prefix-middle ordering for robustness.
+
+## Source And License Notes
+
+This is a mixed code dataset. Bundle 1 contains generated/unknown continuation
+records and `the-stack-v2` FIM records with per-record source metadata such as
+repository, path, and license where available. Consumers should filter by
+`meta.license`, `meta.source`, and project policy before redistribution or
+training.
+
+The dataset card intentionally uses `license: other` because this repository
+contains mixed-source records rather than one uniform license.
+
+## Validation Contract
+
+A checkpoint is upload-ready only when:
+
+- JSONL parsing succeeds.
+- Empty `text` count is zero.
+- In-bundle duplicate count is zero.
+- `MANIFEST.json`, `BALANCE_REPORT.md`, and `CHECKSUMS.txt` are present.
+- The checkpoint contains the `tokenizer`, `dense_architecture`, and
+  `moe_architecture` documentation folders.
+
+Do not train on a checkpoint marked `Not Upload Ready`.