Castle Fingerprinting Script
Castle SDK for Node
core components
Castle SDK for React Native
recursive object extending & overriding
PGP library for renovate
A cli to convert avro schemas into typescript interfaces
OpenCastle Alchemist — `castle` trading-strategy CLI. Pair with the `opencastleai/alchemist-skill` Claude Code plugin for the agent-facing skill.
Castle CLI for local deck creation, preview, editing, and saving
Is this specifier a node.js core module?
Babel compiler core.
core-js compat
Standard library
Core functions & classes shared by multiple AWS SDK clients.
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.
Your agent, your machine, your keys. An MCP server that adds encrypted state, approval gates, and a portable identity to any AI agent.
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
Accessibility engine for automated Web UI testing
[](https://www.npmjs.com/package/@smithy/core) [](https://www.npmjs.com/package/@smithy/core)
Super-fast alternative for babel
Castle is an open source project for .NET that aspires to simplify the development of enterprise and web applications. Offering a set of tools (working together or independently) and integration with others open source projects, Castle helps you get more done with less code and in less time.
Parse and generate Portable Action Notation (PAN) strings for representing atomic actions in abstract strategy board games including chess, shogi, xiangqi, and others. PAN provides an intuitive operator-based syntax with six core operators: "-" (move to empty square), "+" (capture), "~" (special moves with side effects), "*" (drop to board), "." (drop with capture), and "=" (in-place transformation), plus "..." (pass turn). Supports coordinates via CELL specification and piece identifiers via EPIN specification. Handles transformations ("e7-e8=Q"), enhanced/diminished states ("+R", "-P"), and style derivation markers ("K'"). Provides comprehensive validation, immutable action objects, and functional API design. Examples: "e2-e4" (move), "d1+f3" (capture), "e1~g1" (castling), "P*e5" (drop), "e7-e8=Q" (promotion), "..." (pass), "+d4" (static capture), "e4=+P" (modify).
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