[hellovai]

Three spellings described the same Python target: baml.toml wanted python/pydantic, baml generate add wanted python/pydantic2, and the enum carried a PythonPydanticV1 variant. This collapses them to one.

add_name() is gone. Display now produces the canonical name written to baml.toml, FromStr reads every canonical name back, and canonical() is the same string with a 'static lifetime for clap's PossibleValue. Tests assert the two agree and that every canonical name round-trips — a name Display writes but FromStr cannot read would silently corrupt the manifest.

python and typescript are accepted as aliases for the canonical Python and Node targets. They parse but are hidden from the possible-values list, so that list names exactly what lands in baml.toml; the argument's help text names the aliases instead.

OutputType::PythonPydanticV1 is deleted. It shared a dispatch arm with PythonPydantic and passed identical arguments, so the v1 spelling silently emitted Pydantic v2 code. Nothing else in the tree referenced it. It is now an unknown value with clap's did-you-mean suggestion, which is strictly better than wrong output.

Second of three stacked PRs for B-1145. Based on #4392 — review that first. Next: #4394

🤖 Generated with Claude Code

https://claude.ai/code/session_018Jm6FCeSHxhtM2S6oTQR5B

[linear]

B-1145

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[github-actions]

⏭️ Performance benchmarks were skipped

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[github-actions]

Binary size checks passed

✅ 7 passed

	Artifact	Platform	File	Gzip	Gated on	Baseline	Delta	Status
✅	baml-cli	Linux	🔒 31.8 MB	12.6 MB	file	31.7 MB	+138.4 KB (+0.4%)	OK
✅	packed-program	Linux	🔒 25.0 MB	9.2 MB	file	24.9 MB	+176.8 KB (+0.7%)	OK
✅	baml-cli	macOS	🔒 25.5 MB	11.2 MB	file	25.5 MB	+65.4 KB (+0.3%)	OK
✅	packed-program	macOS	🔒 20.8 MB	8.2 MB	file	20.6 MB	+207.1 KB (+1.0%)	OK
✅	baml-cli	Windows	🔒 27.3 MB	11.3 MB	file	27.2 MB	+136.1 KB (+0.5%)	OK
✅	packed-program	Windows	🔒 21.9 MB	8.3 MB	file	21.7 MB	+151.0 KB (+0.7%)	OK
✅	bridge_wasm	WASM	21.4 MB	🔒 5.4 MB	gzip	5.3 MB	+70.4 KB (+1.3%)	OK

🔒 = the size this artifact is GATED on (ceiling + delta). Binaries gate on file size (installed binary); WASM gates on gzip (download size). The other size is shown for information only.

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Generated by cargo size-gate · workflow run