Dan Rosen mergeconflict

context-mode analysis

What context-mode actually is

It's two things working together:

A Claude Code hook system (PreToolUse/PostToolUse) that intercepts and redirects your normal tool calls
An MCP server providing "sandbox" execution tools with output truncation and an FTS5 search index

The claimed problem

tarjanize

A tool to analyze Rust workspace dependency structures and identify opportunities for splitting crates into smaller, parallelizable units to improve build times.

Why "tarjanize"? The tool is named after Robert Tarjan, whose algorithms are central to both phases of our analysis:

Phase 2 uses Tarjan's SCC algorithm (1972) to identify strongly connected components
Phase 3 uses union-find with path compression, whose near-linear time bound was proven by Tarjan & van Leeuwen (1984)

	sealed trait Validation[+E, +A] {
	def map[B](f: A => B): Validation[E, B]
	def flatMap[EE >: E, B](f: A => Validation[EE, B]): Validation[EE, B]
	def <*>[EE >: E, AA, B](aa: Validation[EE, AA])(implicit valueToFunction: A <:< (AA => B)): Validation[EE, B]
	}

	object Validation {

	case class Success[+A](value: A) extends Validation[Nothing, A] {
	def map[B](f: A => B): Validation[Nothing, B] =

	import language.{ higherKinds, implicitConversions }

	trait Unapply[TC[_[+_]], FA] {
	type F[+_]
	type A
	def TC: TC[F]
	def apply(fa: FA): F[A]
	}

	object Unapply {

	// this is really "category" but omg math words
	trait Stackable[S[_, _]] {
	def compose[A, B, C](lhs: S[A, B], rhs: S[B, C]): S[A, C]
	def id[A]: S[A, A]
	}

	object Stackable {
	// for example ...
	implicit val function1stackable = new Stackable[Function1] {
	def compose[A, B, C](lhs: A => B, rhs: B => C): A => C = lhs andThen rhs

	data Term = Var Int
	\| Abs Term
	\| App Term Term
	deriving Eq

	instance Show Term where
	show (Var index) = show index
	show (Abs body) = "λ." ++ show body
	show (App lhs rhs) = "(" ++ show lhs ++ " " ++ show rhs ++ ")"

	package sandbox

	import akka.actor.{ Actor, ActorRef, ActorSystem, Props }

	class Println extends Actor {
	def receive = {
	case message => println(message)
	}
	}
	object Println {

	package sandbox

	trait Monoid[A] {
	def empty: A
	def append(lhs: A, rhs: A): A
	}

	case class Writer[W, A](a: A, w: W) {
	def map[B](f: A => B): Writer[W, B] = Writer(f(a), w)
	def flatMap[B](f: A => Writer[W, B])(implicit W: Monoid[W]) = {

	case class Inject[-E, +A](inject: E => A) {

	// covariant functor and monad
	def map[B](f: A => B): Inject[E, B] =
	Inject { e => f(inject(e)) }
	def flatMap[ε <: E, B](f: A => Inject[ε, B]): Inject[ε, B] =
	Inject { e => f(inject(e)).inject(e) }

	// to satisfy for-comprehension desugaring in scala < 2.10
	def filter(f: A => Boolean): Inject[E, A] =

	import java.util.function.BiFunction;
	import java.util.function.Function;
	import java.util.function.Supplier;

	/*
	* Java 8 fantasy land spec:
	*
	* A monad is a parameterized data type `M` with the following constraints
	* - An instance `M<A>` must have a method: `public <B> M<B> bind(Function<A, M<B>> f)`
	* - `M` must have a static method: `public static <A> M<A> point(A value)`

Dan Rosen mergeconflict

context-mode analysis

What context-mode actually is

The claimed problem

tarjanize

Motivation