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ast-grep-language

v0.42.0 Growing

Search and Rewrite code at large scale using precise AST pattern

MIT Edition 2021 MSRV 1.79
#search#ast#pattern#rewrite#codemod

Quick Verdict

  • โœ“Actively maintained (updated 12d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Trusted by 442 crates
  • !Heavy dependency tree (29 direct deps)
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
959.8K
Dependents
442
Releases
157
Size
19KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

377.5K downloads in the last 30 days (12.6K/day), up 77% from the previous period.

๐Ÿ”—
Moderate adoption

442 crates depend on ast-grep-language. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 3+ years old, ast-grep-language hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“ฆ
Heavy dependency tree

29 direct dependencies. Consider the impact on compile times and supply chain complexity.

๐Ÿ“
Compact crate

At 19KB, ast-grep-language is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include ast-grep, ast-grep-lsp, ast-grep-napi, ast-grep-py, steer-workspace. When high-quality crates choose ast-grep-language, it's a strong quality signal.

Health Breakdown

Maintenance 19/25

Recency, release consistency, active ratio

Quality 12/25

Yanked ratio, deps, size, maturity, features

Community 10/20

Reverse deps, ownership, ecosystem

Popularity 7/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
7K/day avg+249%
05K10K15K20K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.39.9
89%
v0.40.5
6%
v0.35.0
3%
v0.34.4
1%
v0.36.1
1%

Release Timeline

157 releases1 yankedsince 2023
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2023
60
2024
59
2025
33
2026
5
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Yanked

Feature Flags

default =["builtin-parser"]

napi-langbuiltin-parser*

README

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Maintainers

Dependencies
29
direct dependencies
Dependents
442
crates depend on ast-grep-language

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