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npm · #4719 most downloaded on npm
This is a library to aid in instrumenting Node.js libraries at build or load time.
Last release 2 months ago
23 Jul 2026
Ships unpredictably
gaps range from 8 days to 5 months
Nearly every release is documented
notes for 22 of 24 stable releases
Nothing withdrawn
no release was ever pulled
1 years old
24 releases · first in 2025
One column per month.
Allow custom transforms to call default transforms
make astQuery a first-class feature
allow message.result to be changed
Add a cli tool to assist with testing configurations
Expose Transformer moduleName and filePath
Add return kind option to support iterators
transformer: add objectName+propertyName selector to #fromFunctionQuery
Rewrite orchestrion in javascript
Convert windows path to unix path before comparing against ModuleMatcher file_path value.
Add support for matching export alias
Properly assign async keyword only to wrapped functions that had async keyword on original
Hardcode wrapped arrow functions to not specify async key to avoid wrapping non-native promises
### Features * Inline wasm binary (#46) (9da6297) * Load wasm lazily
### Bug Fixes * Ensure build before publish
versionRange TypeScript definition
feat: Include module version in event args
fix: Allow for argumentation mutation in complex argument functions
fix: Allow injecting into functions nested in functions
feat: Error when code injection fails
unknown module type (#11)wasm-pack should be in devDependencies (#12)fix: Handle module.exports = class Foo when locating classes
module.exports = class Foo when locating classes (#7)Nothing published for this version
fix: Ensure channel_name doesn't cause invalid JavaScript identifiers
channel_name doesn't cause invalid JavaScript identifiers (#4)Initial publish of the temporary package.
Nothing published for this version
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