README.md

metadata

license: cc-by-nc-4.0
language:
  - en
task_categories:
  - text-generation
tags:
  - git
  - commit-messages

CommitCraft data

Git diffs paired with Conventional Commit messages, used to fine-tune Qwen/Qwen2.5-Coder-1.5B-Instruct in the CommitCraft project.

Source and license

Diffs and original messages come from CommitBench. This dataset keeps its CC BY-NC 4.0 license: non-commercial use only, credit required.

How it was made

1. CommitBench rows were filtered: diff size, files touched, low-value messages, secrets.
2. claude-haiku-5-5 wrote a new message for each row and gave it a quality score from 1 to 5.
3. Rows were kept only if the message passes the format check and quality is at least 4.
4. Rows were split by project, so no repository appears in two splits.

Limitations

• message was written by a model, so some labels may be wrong.
• CommitBench hides numbers and hashes as <I> and <HASH> in the diffs.

Splits

• train: 3,767 rows
• validation: 209 rows
• test: 225 rows