Boolean Shapely - Used for TurfJS boolean testing
Is this specifier a node.js core module?
Babel compiler core.
Standard library
Positioning library for floating elements: tooltips, popovers, dropdowns, and more
tldts core primitives (internal module)
Standard library
The `util.is*` functions introduced in Node v0.12.
regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.
A high-level API to automate web browsers
[](https://www.npmjs.com/package/@smithy/core) [](https://www.npmjs.com/package/@smithy/core)
Accessibility engine for automated Web UI testing
core-js compat
The core of the humanfs library.
Error parser to parse an error instance into a collection of frames
Core functions & classes shared by multiple AWS SDK clients.
Modern and scalable routing for React applications
OpenTelemetry Core provides constants and utilities shared by all OpenTelemetry SDK packages.
@vue/compiler-core
Base implementation for all Sentry JavaScript SDKs
Runtime-agnostic core of ESLint
Core HTTP Compatibility Library to bridge the gap between Core V1 & V2 packages.
Core libraries that every NodeJS toolchain project should use
Super-fast alternative for babel
Core types and traits for the shapely ecosystem, providing fundamental reflection capabilities
One trait for reflection, serialization, deserialization
Contrek is a Ruby gem with a C++ core for fast contour tracing and edge detection in PNG images. It extracts polygonal contours from bitmap shapes, enabling image processing, shape analysis, and raster-to-vector workflows such as PNG to SVG conversion.
pikuri-vectordb gives a pikuri-core agent a +vectordb_search+ tool over a local document corpus — agentic search, the agent decides when to retrieve. Ships a swappable backend (a pure-Ruby +Backend::InMemory+ for teaching and a thin +Backend::Chroma+ HTTP client for persistence), a chunker, an embedder wrapper over +RubyLLM.embed+, and an optional +Reranker::LlamaServer+ that speaks +/v1/rerank+ against a cross-encoder model. Text extraction goes through +Pikuri::FileType.read_as_text+ in pikuri-core, which handles plain text / Markdown / PDF; HTML extraction is a deferred follow-up. Hosts wire the feature via +c.add_extension Pikuri::VectorDb::Extension.new(...)+ inside the +Agent.new+ block — same opt-in shape as +pikuri-tasks+ / +pikuri-skills+. The bundled +Pikuri::VectorDb::LIBRARIAN+ persona is the privilege-separated sub-agent counterpart for hosts that want recall to flow through a child rather than the parent's context. Three model endpoints in the full setup — chat (via ruby_llm), an embedder (via +RubyLLM.embed+), and an optional reranker (HTTP +/v1/rerank+). A single +llama-server+ in router mode serves all three by default, loading each cached GGUF on demand; see the gem's README for details.