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Get callsites from the V8 stack trace API
evaluate statically-analyzable expressions
Evaluate and improve AI agents from runs, traces, judges, and feedback. Compare candidates, cluster failures, measure lift, and gate releases.
prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.
Simple JavaScript expression evaluator
Evaluate node require() module content directly
Mathematical expression evaluator fork with exports map, prototype pollution and code injection security fixes
A flexible math expression evaluator
require or eval modules
Clean up error stack traces
Mark scopes for deopt which contain a direct eval call
JavaScript expression parsing and evaluation.
Alias for eval global.
Captures and cleans stack traces
Safely evaluate JavaScript (estree) expressions, sync and async.
Fast, fault-tolerant, cross-platform, disk-based, data-agnostic, content-addressable cache.
An extremely fast directory and filename linter
Get v8 stack traces as an array of CallSite objects.
Extract meaning from JS Errors
Deep Agents - a library for building controllable AI agents with LangGraph
Cross-browser Error parser
A minimal library for executing processes in Node
A simple cache for a few of the JS Error constructors.