Real code smells paired with the fix: a smell_class that names the semantic problem (not just the syntax), the original lines, the corrected lines, the file and line it came from, and a rationale explaining why the original was wrong. Useful for code-review or repair training where the label has to say what is wrong rather than merely flagging a line.

Schema

Fields of the first record, read from the file in this repository:

Field	Type
`id`	`str`
`smell_class`	`str`
`severity`	`str`
`file`	`str`
`line_before`	`int`
`before`	`str`
`after`	`str`
`rationale`	`str`
`grade`	`str`
`provenance`	`str`
`consumer`	`str`

Measured

Property	Value
Rows	39,383
Bytes	25,541,792
Distinct top-level fields	11

The row count was measured with wc -l against the file staged here, not against a source copy.

How it was produced

By the author's own generation pipeline: candidate rows are produced from seed material, graded, and the survivors assembled. Several fields (notably grade and any alien_or_typical judgement) are the pipeline's own assessment, not an external label. The method is described at https://catqualia.com/forest.

Known limitations

Synthetic and self-graded. grade, alien_or_typical and failure_class come from the generating pipeline. They are not human-annotated ground truth.
Generated at scale. Volume is not evidence of quality; a large fraction of rows may be unremarkable.
English only.
Provenance of individual rows varies and is recorded per row where the pipeline captured it.
Not peer-reviewed, not independently evaluated.

Licence

CatQualia Structural Isomorphism License (CSIL) v3.0 — attribution: Christopher Betances, catqualia.com. Non-commercial use is free with attribution; commercial use requires a commercial licence. Full text: LICENSE in this repository and catqualia.com/licensing

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