diff --git a/README.md b/README.md
index 491bcb51..800a6d9a 100644
--- a/README.md
+++ b/README.md
@@ -128,7 +128,11 @@ Weaver also includes support for
 
 The various `test` functions have in common that they expect the developer to return a value of type `Expectations`, which is just a basic case class wrapping a `cats.data.Validated` value.
 
-The most convenient way to build `Expectations` is to use the `expect` function. Based on [Eugene Yokota's](http://eed3si9n.com/about) excellent [expecty](https://github.com/eed3si9n/expecty), it captures the boolean expression at compile time and provides useful feedback on what goes wrong when it does :
+The most convenient way to build `Expectations` is to use the `expect` and `clue` functions. `clue` captures the boolean expression at compile time and provides useful feedback on what goes wrong:
+
+```scala
+expect(clue(List(1, 2, 3).size) == 4)
+```
 
 ![Oops](docs/assets/oops.png)
 
diff --git a/build.sbt b/build.sbt
index 8dcc1003..9afe9228 100644
--- a/build.sbt
+++ b/build.sbt
@@ -41,7 +41,6 @@ val Version = new {
   val catsEffect             = "3.5.4"
   val catsLaws               = "2.9.0"
   val discipline             = "1.5.1"
-  val expecty                = "0.16.0"
   val fs2                    = "3.10.2"
   val junit                  = "4.13.2"
   val portableReflect        = "1.1.2"
@@ -67,13 +66,16 @@ lazy val core = crossProject(JVMPlatform, JSPlatform, NativePlatform)
   .settings(
     name := "weaver-core",
     libraryDependencies ++= Seq(
-      "co.fs2"               %%% "fs2-core"    % Version.fs2,
-      "org.typelevel"        %%% "cats-effect" % Version.catsEffect,
-      "com.eed3si9n.expecty" %%% "expecty"     % Version.expecty,
+      "co.fs2"        %%% "fs2-core"    % Version.fs2,
+      "org.typelevel" %%% "cats-effect" % Version.catsEffect,
       // https://github.com/portable-scala/portable-scala-reflect/issues/23
       "org.portable-scala" %%% "portable-scala-reflect" % Version.portableReflect cross CrossVersion.for3Use2_13,
       "org.typelevel" %% "scalac-compat-annotation" % Version.scalacCompatAnnotation,
-      "org.scalameta" %%% "munit-diff" % Version.munitDiff
+      "org.scalameta" %%% "munit-diff" % Version.munitDiff,
+      if (scalaVersion.value.startsWith("3."))
+        "org.scala-lang" % "scala-reflect" % scala213
+      else
+        "org.scala-lang" % "scala-reflect" % scalaVersion.value
     ),
     // Shades the scala-diff dependency.
     shadedDependencies += "org.scalameta" %%% "munit-diff" % "<ignored>",
@@ -86,11 +88,7 @@ lazy val coreJVM = core.jvm
   .settings(
     libraryDependencies ++= Seq(
       "org.scala-js" %%% "scalajs-stubs" % Version.scalajsStubs % "provided" cross CrossVersion.for3Use2_13,
-      "junit" % "junit" % Version.junit % Optional,
-      if (scalaVersion.value.startsWith("3."))
-        "org.scala-lang" % "scala-reflect" % scala213
-      else
-        "org.scala-lang" % "scala-reflect" % scalaVersion.value
+      "junit" % "junit" % Version.junit % Optional
     )
   )
 
diff --git a/docs/assets/oops.png b/docs/assets/oops.png
index 5bc6fd3c..2872a281 100644
Binary files a/docs/assets/oops.png and b/docs/assets/oops.png differ
diff --git a/docs/features/expectations.md b/docs/features/expectations.md
index b3196e0a..cbd0c365 100644
--- a/docs/features/expectations.md
+++ b/docs/features/expectations.md
@@ -3,7 +3,7 @@ Expectations (assertions)
 
 Expectations are pure, composable values. This forces developers to separate the test's checks from the scenario, which is generally cleaner/clearer.
 
-The easiest way to construct expectactions is to call the `expect` macro, which is built using the [expecty](https://github.com/eed3si9n/expecty/) library.
+The easiest way to construct expectactions is to call the `expect` macro. The `clue` function can be used to investigate failures.
 
 ## TL;DR
 
@@ -13,6 +13,12 @@ The easiest way to construct expectactions is to call the `expect` macro, which
    expect(myVar == 25 && list.size == 4)
    ```
 
+- Investigate failures using `clue`:
+
+   ```scala mdoc:compile-only
+   expect(clue(myVar) == 25 && clue(list).size == 4)
+   ```
+
 - Compose expectations using `and`/`or`
   
   ```scala mdoc:compile-only
@@ -132,7 +138,7 @@ object ExpectationsSuite extends SimpleIOSuite {
   pureTest("Simple expectations (failure)") {
     val z = 15
     
-    expect(A.B.C.test(z) % 7 == 0)
+    expect(clue(A.B.C.test(z)) % 7 == 0)
   }
 
 
@@ -141,7 +147,7 @@ object ExpectationsSuite extends SimpleIOSuite {
   }
 
   pureTest("And/Or composition (failure)") {
-    (expect(1 != 2) and expect(2 == 1)) or expect(2 == 3)
+    (expect(1 != clue(2)) and expect(2 == clue(1))) or expect(2 == clue(3))
   }
 
   pureTest("Varargs composition (success)") {
@@ -151,7 +157,7 @@ object ExpectationsSuite extends SimpleIOSuite {
 
   pureTest("Varargs composition (failure)") {
     // expect(1 + 1 == 2) && expect (2 + 2 == 4) && expect(4 * 2 == 8)
-    expect.all(1 + 1 == 2, 2 + 2 == 5, 4 * 2 == 8)
+    expect.all(clue(1 + 1) == 2, clue(2 + 2) == 5, clue(4 * 2) == 8)
   }
 
   pureTest("Working with collections (success)") {
@@ -166,7 +172,7 @@ object ExpectationsSuite extends SimpleIOSuite {
   }
 
   pureTest("Working with collections (failure 2)") {
-    exists(Option(39))(i => expect(i > 50))
+    exists(Option(39))(i => expect(clue(i) > 50))
   }
 
   import cats.Eq
@@ -220,7 +226,7 @@ object ExpectationsSuite extends SimpleIOSuite {
   test("Failing fast expectations") {
     for {
       h <- IO.pure("hello")
-      _ <- expect(h.isEmpty).failFast
+      _ <- expect(clue(h).isEmpty).failFast
     } yield success
   }
 }
diff --git a/docs/samples/multiple_suites_failures.md b/docs/samples/multiple_suites_failures.md
index f66f234c..2f6451fc 100644
--- a/docs/samples/multiple_suites_failures.md
+++ b/docs/samples/multiple_suites_failures.md
@@ -26,7 +26,7 @@ object MyAnotherSuite extends SimpleIOSuite {
     } yield check(x).traced(here)
   }
 
-  def check(x : String) = expect(x.length > 10)
+  def check(x : String) = expect(clue(clue(x).length) > 10)
 }
 ```
 
diff --git a/modules/core/shared/src/main/scala-2/weaver/Expect.scala b/modules/core/shared/src/main/scala-2/weaver/Expect.scala
deleted file mode 100644
index cef82988..00000000
--- a/modules/core/shared/src/main/scala-2/weaver/Expect.scala
+++ /dev/null
@@ -1,18 +0,0 @@
-package weaver
-
-import com.eed3si9n.expecty._
-
-import internals._
-
-class Expect
-    extends Recorder[Boolean, Expectations]
-    with UnaryRecorder[Boolean, Expectations]
-    with ExpectSame {
-
-  def all(recordings: Boolean*): Expectations =
-    macro VarargsRecorderMacro.apply[Boolean, Expectations]
-
-  override lazy val listener: RecorderListener[Boolean, Expectations] =
-    new ExpectyListener
-
-}
diff --git a/modules/core/shared/src/main/scala-2/weaver/ExpectMacro.scala b/modules/core/shared/src/main/scala-2/weaver/ExpectMacro.scala
new file mode 100644
index 00000000..8aab92d4
--- /dev/null
+++ b/modules/core/shared/src/main/scala-2/weaver/ExpectMacro.scala
@@ -0,0 +1,162 @@
+package weaver
+
+import scala.reflect.macros.blackbox
+import weaver.internals.ClueHelpers
+
+private[weaver] trait ExpectMacro {
+
+  /**
+   * Asserts that a boolean value is true.
+   *
+   * Use the [[Expectations.Helpers.clue]] function to investigate any failures.
+   */
+  def apply(value: Boolean): Expectations = macro ExpectMacro.applyImpl
+
+  /**
+   * Asserts that a boolean value is true and displays a failure message if not.
+   *
+   * Use the [[Expectations.Helpers.clue]] function to investigate any failures.
+   */
+  def apply(value: Boolean, message: => String): Expectations =
+    macro ExpectMacro.messageImpl
+
+  /**
+   * Asserts that boolean values are all true.
+   *
+   * Use the [[Expectations.Helpers.clue]] function to investigate any failures.
+   */
+  def all(values: Boolean*): Expectations = macro ExpectMacro.allImpl
+}
+
+private[weaver] object ExpectMacro {
+
+  /**
+   * Constructs [[Expectations]] from several boolean values.
+   *
+   * If any value evaluates to false, all generated clues are displayed as part
+   * of the failed expectation.
+   */
+  def allImpl(c: blackbox.Context)(values: c.Tree*): c.Tree = {
+    import c.universe._
+    val sourceLoc = new weaver.macros.Macros(c).fromContext.asInstanceOf[c.Tree]
+    val (cluesName, cluesValDef) = makeClues(c)
+    val clueMethodSymbol         = getClueMethodSymbol(c)
+
+    val transformedValues =
+      values.toList.map(replaceClueMethodCalls(c)(clueMethodSymbol,
+                                                  cluesName,
+                                                  _))
+    makeExpectations(c)(cluesName,
+                        cluesValDef,
+                        transformedValues,
+                        sourceLoc,
+                        q"None")
+  }
+
+  /**
+   * Constructs [[Expectations]] from a boolean value and message.
+   *
+   * If the value evaluates to false, the message is displayed as part of the
+   * failed expectation.
+   */
+  def messageImpl(c: blackbox.Context)(
+      value: c.Tree,
+      message: c.Tree): c.Tree = {
+    import c.universe._
+    val sourceLoc = new weaver.macros.Macros(c).fromContext.asInstanceOf[c.Tree]
+    val (cluesName, cluesValDef) = makeClues(c)
+    val clueMethodSymbol         = getClueMethodSymbol(c)
+
+    val transformedValue =
+      replaceClueMethodCalls(c)(clueMethodSymbol, cluesName, value)
+    makeExpectations(c)(cluesName,
+                        cluesValDef,
+                        List(transformedValue),
+                        sourceLoc,
+                        q"Some($message)")
+  }
+
+  /**
+   * Constructs [[Expectations]] from a boolean value.
+   *
+   * A macro is needed to support clues. The value expression may contain calls
+   * to [[ClueHelpers.clue]], which generate clues for values under test.
+   *
+   * This macro constructs a local collection of [[Clues]] and adds the
+   * generated clues to it. Calls to [[ClueHelpers.clue]] are rewritten to calls
+   * to [[Clues.addClue]].
+   *
+   * After the value is evaluated, the [[Clues]] collection is used to contruct
+   * [[Expectations]].
+   */
+  def applyImpl(c: blackbox.Context)(value: c.Tree): c.Tree = {
+
+    import c.universe._
+    val sourceLoc = new weaver.macros.Macros(c).fromContext.asInstanceOf[c.Tree]
+    val (cluesName, cluesValDef) = makeClues(c)
+    val clueMethodSymbol         = getClueMethodSymbol(c)
+
+    val transformedValue =
+      replaceClueMethodCalls(c)(clueMethodSymbol, cluesName, value)
+    makeExpectations(c)(cluesName,
+                        cluesValDef,
+                        List(transformedValue),
+                        sourceLoc,
+                        q"None")
+  }
+
+  /** Constructs [[Expectations]] from the local [[Clues]] collection. */
+  private def makeExpectations(c: blackbox.Context)(
+      cluesName: c.TermName,
+      cluesValDef: c.Tree,
+      values: List[c.Tree],
+      sourceLoc: c.Tree,
+      message: c.Tree): c.Tree = {
+    import c.universe._
+    val block =
+      q"$cluesValDef; _root_.weaver.internals.Clues.toExpectations($sourceLoc, $message, $cluesName, ..$values)"
+    val untyped = c.untypecheck(block)
+    val retyped = c.typecheck(untyped, pt = c.typeOf[Expectations])
+    retyped
+
+  }
+
+  /** Get the [[ClueHelpers.clue]] symbol. */
+  private def getClueMethodSymbol(c: blackbox.Context): c.Symbol = {
+    import c.universe._
+    symbolOf[ClueHelpers].info.member(TermName("clue"))
+  }
+
+  /** Construct a [[Clues]] collection local to the `expect` call. */
+  private def makeClues(c: blackbox.Context): (c.TermName, c.Tree) = {
+    import c.universe._
+    val cluesName = TermName(c.freshName("clues$"))
+    val cluesValDef =
+      q"val $cluesName: _root_.weaver.internals.Clues = new _root_.weaver.internals.Clues()"
+    (cluesName, cluesValDef)
+  }
+
+  /**
+   * Replaces all calls to [[ClueHelpers.clue]] with calls to [[Clues.addClue]].
+   */
+  private def replaceClueMethodCalls(c: blackbox.Context)(
+      clueMethodSymbol: c.Symbol,
+      cluesName: c.TermName,
+      value: c.Tree): c.Tree = {
+
+    import c.universe._
+    object transformer extends Transformer {
+
+      override def transform(input: Tree): Tree = input match {
+        case c.universe.Apply(fun, List(clueValue))
+            if fun.symbol == clueMethodSymbol =>
+          val transformedClueValue = super.transform(clueValue)
+          val clueName             = TermName(c.freshName("clue$"))
+          q"""{val $clueName = ${transformedClueValue}; ${cluesName}.addClue($clueName)}"""
+        case o => super.transform(o)
+      }
+    }
+
+    transformer.transform(value)
+  }
+}
diff --git a/modules/core/shared/src/main/scala-2/weaver/SourceLocationMacro.scala b/modules/core/shared/src/main/scala-2/weaver/SourceLocationMacro.scala
index e188b65b..aeccffe3 100644
--- a/modules/core/shared/src/main/scala-2/weaver/SourceLocationMacro.scala
+++ b/modules/core/shared/src/main/scala-2/weaver/SourceLocationMacro.scala
@@ -2,7 +2,7 @@ package weaver
 
 // kudos to https://github.com/monix/minitest
 // format: off
-import scala.reflect.macros.whitebox
+import scala.reflect.macros.blackbox
 
 trait SourceLocationMacro {
 
@@ -22,10 +22,10 @@ trait SourceLocationMacro {
 }
 
 object macros {
-  class Macros(val c: whitebox.Context) {
+  class Macros(val c: blackbox.Context) {
     import c.universe._
 
-    def fromContext: Tree = {
+    def fromContext: c.Tree = {
       val (pathExpr, relPathExpr, lineExpr) = getSourceLocation
       val SourceLocationSym = symbolOf[SourceLocation].companion
       q"""$SourceLocationSym($pathExpr, $relPathExpr, $lineExpr)"""
diff --git a/modules/core/shared/src/main/scala-2/weaver/internals/Clue.scala b/modules/core/shared/src/main/scala-2/weaver/internals/Clue.scala
new file mode 100644
index 00000000..4b865cfe
--- /dev/null
+++ b/modules/core/shared/src/main/scala-2/weaver/internals/Clue.scala
@@ -0,0 +1,50 @@
+package weaver.internals
+
+import cats.Show
+
+/**
+ * Captures the source code, type information, and runtime representation of a
+ * value.
+ *
+ * Clues are useful for investigating failed assertions. A clue for a given
+ * value is summoned with the [[ClueHelpers.clue]] function. This constructs a
+ * clue for a given value using an implicit conversion.
+ *
+ * @param source
+ *   The source code of the value
+ * @param value
+ *   The runtime value
+ * @param valueType
+ *   The string representation of the type of the value
+ * @param show
+ *   The [[cats.Show]] typeclass used to display the value.
+ */
+private[weaver] class Clue[T](
+    source: String,
+    private[internals] val value: T,
+    valueType: String,
+    show: Show[T]
+) {
+  private[internals] def prettyPrint: String =
+    s"${source}: ${valueType} = ${show.show(value)}"
+}
+
+private[internals] trait LowPriorityClueImplicits {
+
+  /**
+   * Generates a clue for a given value using the [[toString]] function to print
+   * the value.
+   */
+  implicit def generateClueFromToString[A](value: A): Clue[A] =
+    macro ClueMacro.showFromToStringImpl
+}
+private[weaver] object Clue extends LowPriorityClueImplicits {
+
+  /**
+   * Generates a clue for a given value using a [[Show]] instance to print the
+   * value.
+   */
+  implicit def generateClue[A](value: A)(implicit catsShow: Show[A]): Clue[A] =
+    macro ClueMacro.impl
+
+}
diff --git a/modules/core/shared/src/main/scala-2/weaver/internals/ClueHelpers.scala b/modules/core/shared/src/main/scala-2/weaver/internals/ClueHelpers.scala
new file mode 100644
index 00000000..a1ff4069
--- /dev/null
+++ b/modules/core/shared/src/main/scala-2/weaver/internals/ClueHelpers.scala
@@ -0,0 +1,19 @@
+package weaver.internals
+
+import scala.annotation.compileTimeOnly
+import org.typelevel.scalaccompat.annotation.unused
+
+private[weaver] trait ClueHelpers {
+
+  /**
+   * Used to investigate failures in `expect` or `assert` statements.
+   *
+   * Surround a value with a call to `clue` to display it on failure.
+   */
+  @compileTimeOnly(
+    "This function can only be used within `expect` or `assert`.")
+  final def clue[A](@unused a: Clue[A]): A = {
+    // This function is removed as part of the `expect` macro expansion.
+    throw new Error("compileTimeOnly annotation not respected! This is likely to be a bug in weaver-test. Report it at https://github.com/typelevel/weaver-test/issues/new")
+  }
+}
diff --git a/modules/core/shared/src/main/scala-2/weaver/internals/ClueMacro.scala b/modules/core/shared/src/main/scala-2/weaver/internals/ClueMacro.scala
new file mode 100644
index 00000000..9b97fe03
--- /dev/null
+++ b/modules/core/shared/src/main/scala-2/weaver/internals/ClueMacro.scala
@@ -0,0 +1,48 @@
+package weaver.internals
+
+import scala.reflect.macros.blackbox.Context
+
+// This code is heavily borrowed from munit's Clue macro: https://github.com/scalameta/munit/blob/426e79708accb5b7136689d781f7593b473589f4/munit/shared/src/main/scala/munit/internal/MacroCompatScala2.scala#L25
+private[weaver] object ClueMacro {
+  def showFromToStringImpl(c: Context)(value: c.Tree): c.Tree = {
+    import c.universe._
+    impl(c)(value)(q"cats.Show.fromToString[${value.tpe}]")
+  }
+
+  /**
+   * Constructs a clue by extracting the source code and type information of a
+   * value.
+   */
+  def impl(c: Context)(value: c.Tree)(catsShow: c.Tree): c.Tree = {
+    import c.universe._
+    val text: String =
+      if (value.pos != null && value.pos.isRange) {
+        val chars = value.pos.source.content
+        val start = value.pos.start
+        val end   = value.pos.end
+        if (end > start &&
+          start >= 0 && start < chars.length &&
+          end >= 0 && end < chars.length) {
+          new String(chars, start, end - start)
+        } else {
+          ""
+        }
+      } else {
+        ""
+      }
+    def simplifyType(tpe: Type): Type = tpe match {
+      case TypeRef(ThisType(pre), sym, args) if pre == sym.owner =>
+        simplifyType(c.internal.typeRef(NoPrefix, sym, args))
+      case t =>
+        t.widen
+    }
+    val source    = Literal(Constant(text.trim))
+    val valueType = Literal(Constant(simplifyType(value.tpe).toString()))
+    val clueTpe = c.internal.typeRef(
+      NoPrefix,
+      c.mirror.staticClass(classOf[Clue[_]].getName()),
+      List(value.tpe.widen)
+    )
+    q"new $clueTpe(..$source, $value, $valueType, $catsShow)"
+  }
+}
diff --git a/modules/core/shared/src/main/scala-3/weaver/Expect.scala b/modules/core/shared/src/main/scala-3/weaver/Expect.scala
deleted file mode 100644
index dfc9f4bb..00000000
--- a/modules/core/shared/src/main/scala-3/weaver/Expect.scala
+++ /dev/null
@@ -1,18 +0,0 @@
-package weaver
-
-import com.eed3si9n.expecty._
-import internals._
-
-import scala.quoted._
-
-class Expect
-    extends Recorder[Boolean, Expectations]
-    with UnaryRecorder[Boolean, Expectations]
-    with ExpectSame {
-
-  inline def all(inline recordings: Boolean*): Expectations =
-    ${ RecorderMacro.varargs('recordings, 'listener) }
-
-  override lazy val listener = new ExpectyListener
-
-}
diff --git a/modules/core/shared/src/main/scala-3/weaver/ExpectMacro.scala b/modules/core/shared/src/main/scala-3/weaver/ExpectMacro.scala
new file mode 100644
index 00000000..a509832f
--- /dev/null
+++ b/modules/core/shared/src/main/scala-3/weaver/ExpectMacro.scala
@@ -0,0 +1,92 @@
+package weaver
+
+import scala.quoted._
+import scala.language.experimental.macros
+import weaver.internals.Clues
+
+private[weaver] trait ExpectMacro {
+
+  /**
+   * Asserts that a boolean value is true.
+   *
+   * Use the [[ClueHelpers.clue]] function to investigate any failures.
+   */
+  inline def apply(assertion: Clues ?=> Boolean): Expectations =
+    ${ ExpectMacro.applyImpl('assertion) }
+
+    /**
+     * Asserts that a boolean value is true and displays a failure message if
+     * not.
+     *
+     * Use the [[ClueHelpers.clue]] function to investigate any failures.
+     */
+  inline def apply(
+      assertion: Clues ?=> Boolean,
+      message: => String): Expectations =
+    ${ ExpectMacro.applyMessageImpl('assertion, 'message) }
+
+  /**
+   * Asserts that boolean values are all true.
+   *
+   * Use the [[ClueHelpers.clue]] function to investigate any failures.
+   */
+  inline def all(assertions: (Clues ?=> Boolean)*): Expectations =
+    ${ ExpectMacro.allImpl('assertions) }
+}
+private[weaver] object ExpectMacro {
+
+  /**
+   * Constructs [[Expectations]] from an assertion.
+   *
+   * A macro is needed to extract the source location of the `expect` call.
+   *
+   * This macro constructs a local collection of [[Clues]]. Calls to
+   * [[ClueHelpers.clue]] add to this collection.
+   *
+   * After the assertion is evaluated, the [[Clues]] collection is used to
+   * contruct [[Expectations]].
+   */
+  def applyImpl[T: Type](assertion: Expr[Clues ?=> Boolean])(using
+  q: Quotes): Expr[Expectations] = {
+    val sourceLoc = weaver.macros.fromContextImpl(using q)
+    '{
+      val clues  = new Clues
+      val result = ${ assertion }(using clues)
+      Clues.toExpectations($sourceLoc, None, clues, result)
+    }
+  }
+
+  /**
+   * Constructs [[Expectations]] from an assertion and message.
+   *
+   * If the assertion evaluates to false, the message is displayed as part of
+   * the failed expectation.
+   */
+  def applyMessageImpl[T: Type](
+      assertion: Expr[Clues ?=> Boolean],
+      message: => Expr[String])(using q: Quotes): Expr[Expectations] = {
+    val sourceLoc = weaver.macros.fromContextImpl(using q)
+    '{
+      val clues  = new Clues
+      val result = ${ assertion }(using clues)
+      Clues.toExpectations($sourceLoc, Some($message), clues, result)
+    }
+  }
+
+  /**
+   * Constructs [[Expectations]] from several assertions.
+   *
+   * If any assertion evaluates to false, all generated clues are displayed as
+   * part of the failed expectation.
+   */
+  def allImpl[T: Type](assertions: Expr[Seq[(Clues ?=> Boolean)]])(using
+  q: Quotes): Expr[Expectations] = {
+    val sourceLoc = weaver.macros.fromContextImpl(using q)
+    '{
+      val clues   = new Clues
+      val results = ${ assertions }.map(assertion => assertion(using clues))
+      Clues.toExpectations($sourceLoc, None, clues, results: _*)
+    }
+  }
+
+}
diff --git a/modules/core/shared/src/main/scala-3/weaver/internals/Clue.scala b/modules/core/shared/src/main/scala-3/weaver/internals/Clue.scala
new file mode 100644
index 00000000..ee1c18d3
--- /dev/null
+++ b/modules/core/shared/src/main/scala-3/weaver/internals/Clue.scala
@@ -0,0 +1,31 @@
+package weaver.internals
+
+import cats.Show
+
+/**
+ * Captures the source code, type information, and runtime representation of a
+ * value.
+ *
+ * Clues are useful for investigating failed assertions. A clue for a given
+ * value is summoned with the [[ClueHelpers.clue]] function. This constructs a
+ * clue for a given value using an implicit conversion.
+ *
+ * @param source
+ *   The source code of the value
+ * @param value
+ *   The runtime value
+ * @param valueType
+ *   The string representation of the type of the value
+ * @param show
+ *   The [[cats.Show]] typeclass used to display the value.
+ */
+private[weaver] class Clue[T](
+    source: String,
+    private[internals] val value: T,
+    valueType: String,
+    show: Show[T]
+) {
+
+  private[internals] def prettyPrint: String =
+    s"${source}: ${valueType} = ${show.show(value)}"
+}
diff --git a/modules/core/shared/src/main/scala-3/weaver/internals/ClueHelpers.scala b/modules/core/shared/src/main/scala-3/weaver/internals/ClueHelpers.scala
new file mode 100644
index 00000000..645cc7c7
--- /dev/null
+++ b/modules/core/shared/src/main/scala-3/weaver/internals/ClueHelpers.scala
@@ -0,0 +1,16 @@
+package weaver.internals
+import cats.Show
+import scala.quoted._
+import scala.language.experimental.macros
+
+private[weaver] trait ClueHelpers {
+
+  /**
+   * Used to investigate failures in `expect` or `assert` statements.
+   *
+   * Surround a value with a call to `clue` to display it on failure.
+   */
+  inline def clue[A](value: A)(
+      using catsShow: Show[A] = Show.fromToString[A],
+      clues: Clues): A = ${ ClueMacro.clueImpl('value, 'catsShow, 'clues) }
+}
diff --git a/modules/core/shared/src/main/scala-3/weaver/internals/ClueMacro.scala b/modules/core/shared/src/main/scala-3/weaver/internals/ClueMacro.scala
new file mode 100644
index 00000000..410c82cb
--- /dev/null
+++ b/modules/core/shared/src/main/scala-3/weaver/internals/ClueMacro.scala
@@ -0,0 +1,25 @@
+package weaver.internals
+import cats.Show
+import scala.quoted._
+import scala.language.experimental.macros
+
+private[weaver] object ClueMacro {
+
+  /**
+   * Constructs a clue for a given value and adds it to a collection of
+   * [[Clues]], then returns the value.
+   */
+  def clueImpl[T: Type](
+      value: Expr[T],
+      catsShow: Expr[Show[T]],
+      clues: Expr[Clues])(using Quotes): Expr[T] = {
+    import quotes.reflect._
+    val source    = value.asTerm.pos.sourceCode.getOrElse("")
+    val valueType = TypeTree.of[T].show(using Printer.TreeShortCode)
+    '{
+      val clue =
+        new Clue(${ Expr(source) }, $value, ${ Expr(valueType) }, $catsShow)
+      $clues.addClue(clue)
+    }
+  }
+}
diff --git a/modules/core/shared/src/main/scala/weaver/Expect.scala b/modules/core/shared/src/main/scala/weaver/Expect.scala
new file mode 100644
index 00000000..e58e2596
--- /dev/null
+++ b/modules/core/shared/src/main/scala/weaver/Expect.scala
@@ -0,0 +1,5 @@
+package weaver
+
+import internals._
+
+class Expect extends ExpectSame with ExpectMacro
diff --git a/modules/core/shared/src/main/scala/weaver/Expectations.scala b/modules/core/shared/src/main/scala/weaver/Expectations.scala
index 6480b4fe..d52d2a3f 100644
--- a/modules/core/shared/src/main/scala/weaver/Expectations.scala
+++ b/modules/core/shared/src/main/scala/weaver/Expectations.scala
@@ -157,7 +157,7 @@ object Expectations {
           ))
     }
 
-  trait Helpers {
+  trait Helpers extends weaver.internals.ClueHelpers {
 
     /**
      * Expect macros
diff --git a/modules/core/shared/src/main/scala/weaver/internals/Clues.scala b/modules/core/shared/src/main/scala/weaver/internals/Clues.scala
new file mode 100644
index 00000000..e9508ed3
--- /dev/null
+++ b/modules/core/shared/src/main/scala/weaver/internals/Clues.scala
@@ -0,0 +1,70 @@
+package weaver.internals
+import scala.annotation.implicitNotFound
+import cats.data.{ NonEmptyList, Validated }
+
+import weaver.Expectations
+import weaver.AssertionException
+import weaver.SourceLocation
+import cats.data.Chain
+
+// For Scala 3, the Clues collection is provided implicitly using a context function.
+// If users attempt to call the `clue` function outside of the `expect` context, they will get this implicitNotFound error.
+@implicitNotFound(
+  "The `clue` function can only be called within `expect` or `assert`.")
+/**
+ * A collection of all the clues defined within a call to `expect`.
+ *
+ * Each call to `expect` has its own unique clue collection. When a [[Clue]] is
+ * evaluated, it is added to the collection with [[addClue]].
+ */
+final class Clues {
+  private var clues: Chain[Clue[?]] = Chain.empty
+
+  /**
+   * Adds a clue to the collection.
+   *
+   * This function is called as part of the expansion of the `expect` macro. It
+   * should not be called explicitly.
+   */
+  def addClue[A](clue: Clue[A]): A = {
+    clues = clues :+ clue
+    clue.value
+  }
+
+  private[Clues] def getClues: List[Clue[?]] = clues.toList
+}
+
+object Clues {
+
+  /**
+   * Constructs [[Expectations]] from the collection of clues.
+   *
+   * If the results are successful, the clues are discarded. If any result has
+   * failed, the clues are printed as part of the failure message.
+   *
+   * This function is called as part of the expansion of the `expect` macro. It
+   * should not be called explicitly.
+   */
+  def toExpectations(
+      sourceLoc: SourceLocation,
+      message: Option[String],
+      clues: Clues,
+      results: Boolean*): Expectations = {
+    val success = results.toList.forall(identity)
+    if (success) {
+      Expectations(Validated.valid(()))
+    } else {
+      val header   = "assertion failed" + message.fold("")(msg => s": $msg")
+      val clueList = clues.getClues
+      val cluesMessage = if (clueList.nonEmpty) {
+        val lines = clueList.map(clue => s"  ${clue.prettyPrint}")
+        lines.mkString("Clues {\n", "\n", "\n}")
+      } else ""
+      val fullMessage = header + "\n\n" + cluesMessage
+
+      val exception =
+        new AssertionException(fullMessage, NonEmptyList.of(sourceLoc))
+      Expectations(Validated.invalidNel(exception))
+    }
+  }
+}
diff --git a/modules/core/shared/src/main/scala/weaver/internals/ExpectyListener.scala b/modules/core/shared/src/main/scala/weaver/internals/ExpectyListener.scala
deleted file mode 100644
index 17ae27e8..00000000
--- a/modules/core/shared/src/main/scala/weaver/internals/ExpectyListener.scala
+++ /dev/null
@@ -1,43 +0,0 @@
-package weaver
-package internals
-
-import cats.data.{ NonEmptyList, ValidatedNel }
-import cats.syntax.all._
-
-import com.eed3si9n.expecty._
-
-private[weaver] class ExpectyListener
-    extends RecorderListener[Boolean, Expectations] {
-  def sourceLocation(loc: Location): SourceLocation = {
-    SourceLocation(loc.path, loc.relativePath, loc.line)
-  }
-
-  override def expressionRecorded(
-      recordedExpr: RecordedExpression[Boolean],
-      recordedMessage: Function0[String]): Unit = {}
-
-  override def recordingCompleted(
-      recording: Recording[Boolean],
-      recordedMessage: Function0[String]): Expectations = {
-    type Exp = ValidatedNel[AssertionException, Unit]
-    val res = recording.recordedExprs.foldMap[Exp] {
-      expr =>
-        lazy val rendering: String =
-          new ExpressionRenderer(showTypes = false, shortString = true).render(
-            expr)
-
-        if (!expr.value) {
-          val msg = recordedMessage()
-          val header =
-            "assertion failed" +
-              (if (msg == "") ""
-               else ": " + msg)
-          val fullMessage = header + "\n\n" + rendering
-          val sourceLoc   = sourceLocation(expr.location)
-          val sourceLocs  = NonEmptyList.of(sourceLoc)
-          new AssertionException(fullMessage, sourceLocs).invalidNel
-        } else ().validNel
-    }
-    Expectations(res)
-  }
-}
diff --git a/modules/framework-cats/shared/src/test/scala/DogFoodTests.scala b/modules/framework-cats/shared/src/test/scala/DogFoodTests.scala
index ffa4affb..89d91b34 100644
--- a/modules/framework-cats/shared/src/test/scala/DogFoodTests.scala
+++ b/modules/framework-cats/shared/src/test/scala/DogFoodTests.scala
@@ -175,18 +175,16 @@ object DogFoodTests extends IOSuite {
           case LoggedEvent.Error(msg) => msg
         }.get
 
-        // HONESTLY.
-        val (location, capturedExpression) =
-          if (Platform.isScala3) (31, "1 == 2") else (32, "expect(1 == 2)")
-
         val expected = s"""
         |- lots 0ms
         |  of
         |  multiline
         |  (failure)
-        |  assertion failed (modules/framework-cats/shared/src/test/scala/Meta.scala:$location)
+        |  assertion failed (modules/framework-cats/shared/src/test/scala/Meta.scala:34)
         |
-        |  $capturedExpression
+        |  Clues {
+        |    x: Int = 1
+        |  }
         |
         """.stripMargin.trim
 
@@ -300,6 +298,163 @@ object DogFoodTests extends IOSuite {
     }
   }
 
+  test("successes with clues are rendered correctly") {
+    _.runSuite(Meta.Clue).map {
+      case (logs, _) =>
+        val actual = extractLogEventBeforeFailures(logs) {
+          case LoggedEvent.Info(msg) if msg.contains("(success)") =>
+            msg
+        }.get
+
+        val expected = s"""
+        |+ (success) 0ms
+        |
+        """.stripMargin.trim
+
+        expect.same(expected, actual)
+    }
+  }
+
+  test("failures with clues are rendered correctly") {
+    _.runSuite(Meta.Clue).map {
+      case (logs, _) =>
+        val actual = extractLogEventAfterFailures(logs) {
+          case LoggedEvent.Error(msg) if msg.contains("(failure)") =>
+            msg
+        }.get
+
+        val expected = s"""
+        |- (failure) 0ms
+        |  assertion failed (modules/framework-cats/shared/src/test/scala/Meta.scala:83)
+        |
+        |  Clues {
+        |    x: Int = 1
+        |    y: Int = 2
+        |  }
+        |
+        """.stripMargin.trim
+
+        expect.same(expected, actual)
+    }
+  }
+
+  test("failures with nested clues are rendered correctly") {
+    _.runSuite(Meta.Clue).map {
+      case (logs, _) =>
+        val actual = extractLogEventAfterFailures(logs) {
+          case LoggedEvent.Error(msg) if msg.contains("(nested)") =>
+            msg
+        }.get
+
+        val expected = s"""
+        |- (nested) 0ms
+        |  assertion failed (modules/framework-cats/shared/src/test/scala/Meta.scala:89)
+        |
+        |  Clues {
+        |    x: Int = 1
+        |    y: Int = 2
+        |    List(clue(x), clue(y)): List[Int] = List(1, 2)
+        |  }
+        |
+        """.stripMargin.trim
+
+        expect.same(expected, actual)
+    }
+  }
+
+  test("failures with identical clue expressions are rendered correctly") {
+    _.runSuite(Meta.Clue).map {
+      case (logs, _) =>
+        val actual = extractLogEventAfterFailures(logs) {
+          case LoggedEvent.Error(msg) if msg.contains("(map)") =>
+            msg
+        }.get
+
+        val expected = s"""
+        |- (map) 0ms
+        |  assertion failed (modules/framework-cats/shared/src/test/scala/Meta.scala:95)
+        |
+        |  Clues {
+        |    v: Int = 1
+        |    v: Int = 2
+        |  }
+        |
+        """.stripMargin.trim
+
+        expect.same(expected, actual)
+    }
+  }
+
+  test("values of clues are rendered with the given show") {
+    _.runSuite(Meta.Clue).map {
+      case (logs, _) =>
+        val actual = extractLogEventAfterFailures(logs) {
+          case LoggedEvent.Error(msg) if msg.contains("(show)") =>
+            msg
+        }.get
+
+        val expected = s"""
+        |- (show) 0ms
+        |  assertion failed (modules/framework-cats/shared/src/test/scala/Meta.scala:102)
+        |
+        |  Clues {
+        |    x: Int = int-1
+        |    y: Int = int-2
+        |  }
+        |
+        """.stripMargin.trim
+
+        expect.same(expected, actual)
+    }
+  }
+
+  test("values of clues are rendered with show constructed from toString if no show is given") {
+    _.runSuite(Meta.Clue).map {
+      case (logs, _) =>
+        val actual = extractLogEventAfterFailures(logs) {
+          case LoggedEvent.Error(msg)
+              if msg.contains("(show-from-to-string)") =>
+            msg
+        }.get
+
+        val expected = s"""
+        |- (show-from-to-string) 0ms
+        |  assertion failed (modules/framework-cats/shared/src/test/scala/Meta.scala:112)
+        |
+        |  Clues {
+        |    x: Foo = foo-1
+        |    y: Foo = foo-2
+        |  }
+        |
+        """.stripMargin.trim
+
+        expect.same(expected, actual)
+    }
+  }
+  test("clue calls are replaced when using helper objects") {
+    _.runSuite(Meta.Clue).map {
+      case (logs, _) =>
+        val actual = extractLogEventAfterFailures(logs) {
+          case LoggedEvent.Error(msg) if msg.contains("(helpers)") =>
+            msg
+        }.get
+
+        val expected = s"""
+        |- (helpers) 0ms
+        |  assertion failed (modules/framework-cats/shared/src/test/scala/Meta.scala:121)
+        |
+        |  Clues {
+        |    x: Int = 1
+        |    y: Int = 2
+        |    z: Int = 3
+        |  }
+        |
+        """.stripMargin.trim
+
+        expect.same(expected, actual)
+    }
+  }
+
   private def outputBeforeFailures(logs: Chain[LoggedEvent]): Chain[String] = {
     logs
       .takeWhile {
diff --git a/modules/framework-cats/shared/src/test/scala/Meta.scala b/modules/framework-cats/shared/src/test/scala/Meta.scala
index 6d6b5e33..7fc7a7f4 100644
--- a/modules/framework-cats/shared/src/test/scala/Meta.scala
+++ b/modules/framework-cats/shared/src/test/scala/Meta.scala
@@ -3,9 +3,9 @@ package framework
 package test
 
 import org.typelevel.scalaccompat.annotation._
+import cats.Show
 
 import cats.effect._
-
 // The build tool will only detect and run top-level test suites. We can however nest objects
 // that contain failing tests, to allow for testing the framework without failing the build
 // because the framework will have ran the tests on its own.
@@ -29,7 +29,9 @@ object Meta {
     }
 
     pureTest("lots\nof\nmultiline\n(failure)") {
-      expect(1 == 2)
+      val x = 1
+      val y = 2
+      expect(clue(x) == y)
     }
 
     test("lots\nof\nmultiline\n(ignored)") {
@@ -64,6 +66,63 @@ object Meta {
     }
   }
 
+  object Clue extends SimpleIOSuite {
+    override implicit protected def effectCompat: UnsafeRun[IO] =
+      SetTimeUnsafeRun
+    implicit val sourceLocation: SourceLocation = TimeCop.sourceLocation
+
+    pureTest("(success)") {
+      val x = 1
+      val y = 1
+      expect(clue(x) == clue(y))
+    }
+
+    pureTest("(failure)") {
+      val x = 1
+      val y = 2
+      expect(clue(x) == clue(y))
+    }
+
+    pureTest("(nested)") {
+      val x = 1
+      val y = 2
+      expect(clue(List(clue(x), clue(y))) == List(x, x))
+    }
+
+    pureTest("(map)") {
+      val x = 1
+      val y = 2
+      expect(List(x, y).map(v => clue(v)) == List(x, x))
+    }
+
+    pureTest("(show)") {
+      implicit val intShow: Show[Int] = i => s"int-$i"
+      val x                           = 1
+      val y                           = 2
+      expect(clue(x) == clue(y))
+    }
+
+    pureTest("(show-from-to-string)") {
+      class Foo(i: Int) {
+        override def toString = s"foo-$i"
+      }
+      val x: Foo = new Foo(1)
+      val y: Foo = new Foo(2)
+
+      expect(clue(x) == clue(y))
+    }
+
+    pureTest("(helpers)") {
+      val x = 1
+      val y = 2
+      val z = 3
+      import Expectations.Helpers.{ clue => otherclue }
+      object CustomHelpers extends Expectations.Helpers
+      expect(CustomHelpers.clue(x) == otherclue(y) || x == clue(z))
+    }
+
+  }
+
   object FailingTestStatusReporting extends SimpleIOSuite {
     override implicit protected def effectCompat: UnsafeRun[IO] =
       SetTimeUnsafeRun