diff --git a/apollo-federation/src/sources/connect/json_selection/README.md b/apollo-federation/src/sources/connect/json_selection/README.md
index f80a78b89d3..d2e99b4c32b 100644
--- a/apollo-federation/src/sources/connect/json_selection/README.md
+++ b/apollo-federation/src/sources/connect/json_selection/README.md
@@ -834,6 +834,55 @@ Also, as a minor syntactic convenience, `LitObject` literals can have
 `Identifier` or `LitString` keys, whereas JSON objects can have only
 double-quoted string literal keys.
 
+### `LitPath ::=`
+
+![LitPath](./grammar/LitPath.svg)
+
+A `LitPath` is a special form of `PathSelection` (similar to `VarPath`,
+`KeyPath`, `AtPath`, and `ExprPath`) that can be used _only_ within `LitExpr`
+expressions, allowing the head of the path to be any `LitExpr` value, with a
+non-empty tail of `PathStep` items afterward:
+
+```graphql
+object: $({
+  sd: "asdf"->slice(1, 3),
+  sum: 1234->add(5678),
+  celsius: 98.6->sub(32)->mul(5)->div(9),
+  nine: -1->add(10),
+  false: true->not,
+  true: false->not,
+  twenty: { a: 1, b: 2 }.b->mul(10),
+  last: [1, 2, 3]->last,
+  justA: "abc"->first,
+  justC: "abc"->last,
+})
+```
+
+Note that expressions like `true->not` and `"asdf"->slice(1, 3)` have a
+different interpretation in the default selection syntax (outside of `LitExpr`
+parsing), since `true` and `"asdf"` will be interpreted as field names there,
+not as literal values. If you want to refer to a quoted field value within a
+`LitExpr`, you can use the `$.` variable prefix to disambiguate it:
+
+```graphql
+object: $({
+  fieldEntries: $."quoted field"->entries,
+  stringPrefix: "quoted field"->slice(0, "quoted"->size),
+})
+```
+
+You can still nest the `$(...)` inside itself (or use it within `->` method
+arguments), as in
+
+```graphql
+justA: $($("abc")->first)
+nineAgain: $($(-1)->add($(10)))
+```
+
+In these examples, only the outermost `$(...)` wrapper is required, though the
+inner wrappers may be used to clarify the structure of the expression, similar
+to parentheses in other languages.
+
 ### `LitPrimitive ::=`
 
 ![LitPrimitive](./grammar/LitPrimitive.svg)
diff --git a/apollo-federation/src/sources/connect/json_selection/grammar/LitExpr.svg b/apollo-federation/src/sources/connect/json_selection/grammar/LitExpr.svg
index 200f1d9bb60..05a3798e395 100644
--- a/apollo-federation/src/sources/connect/json_selection/grammar/LitExpr.svg
+++ b/apollo-federation/src/sources/connect/json_selection/grammar/LitExpr.svg
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<svg xmlns="http://www.w3.org/2000/svg" width="205" height="169">
+<svg xmlns="http://www.w3.org/2000/svg" width="205" height="213">
    <defs>
       <style type="text/css">
     @namespace "http://www.w3.org/2000/svg";
@@ -31,36 +31,43 @@
    </defs>
    <polygon points="9 17 1 13 1 21"/>
    <polygon points="17 17 9 13 9 21"/>
+   <a xmlns:xlink="http://www.w3.org/1999/xlink"
+      xlink:href="#LitPath"
+      xlink:title="LitPath">
+      <rect x="51" y="3" width="64" height="32"/>
+      <rect x="49" y="1" width="64" height="32" class="nonterminal"/>
+      <text class="nonterminal" x="59" y="21">LitPath</text>
+   </a>
    <a xmlns:xlink="http://www.w3.org/1999/xlink"
       xlink:href="#LitPrimitive"
       xlink:title="LitPrimitive">
-      <rect x="51" y="3" width="90" height="32"/>
-      <rect x="49" y="1" width="90" height="32" class="nonterminal"/>
-      <text class="nonterminal" x="59" y="21">LitPrimitive</text>
+      <rect x="51" y="47" width="90" height="32"/>
+      <rect x="49" y="45" width="90" height="32" class="nonterminal"/>
+      <text class="nonterminal" x="59" y="65">LitPrimitive</text>
    </a>
    <a xmlns:xlink="http://www.w3.org/1999/xlink"
       xlink:href="#LitObject"
       xlink:title="LitObject">
-      <rect x="51" y="47" width="76" height="32"/>
-      <rect x="49" y="45" width="76" height="32" class="nonterminal"/>
-      <text class="nonterminal" x="59" y="65">LitObject</text>
+      <rect x="51" y="91" width="76" height="32"/>
+      <rect x="49" y="89" width="76" height="32" class="nonterminal"/>
+      <text class="nonterminal" x="59" y="109">LitObject</text>
    </a>
    <a xmlns:xlink="http://www.w3.org/1999/xlink"
       xlink:href="#LitArray"
       xlink:title="LitArray">
-      <rect x="51" y="91" width="68" height="32"/>
-      <rect x="49" y="89" width="68" height="32" class="nonterminal"/>
-      <text class="nonterminal" x="59" y="109">LitArray</text>
+      <rect x="51" y="135" width="68" height="32"/>
+      <rect x="49" y="133" width="68" height="32" class="nonterminal"/>
+      <text class="nonterminal" x="59" y="153">LitArray</text>
    </a>
    <a xmlns:xlink="http://www.w3.org/1999/xlink"
       xlink:href="#PathSelection"
       xlink:title="PathSelection">
-      <rect x="51" y="135" width="106" height="32"/>
-      <rect x="49" y="133" width="106" height="32" class="nonterminal"/>
-      <text class="nonterminal" x="59" y="153">PathSelection</text>
+      <rect x="51" y="179" width="106" height="32"/>
+      <rect x="49" y="177" width="106" height="32" class="nonterminal"/>
+      <text class="nonterminal" x="59" y="197">PathSelection</text>
    </a>
    <path class="line"
-         d="m17 17 h2 m20 0 h10 m90 0 h10 m0 0 h16 m-146 0 h20 m126 0 h20 m-166 0 q10 0 10 10 m146 0 q0 -10 10 -10 m-156 10 v24 m146 0 v-24 m-146 24 q0 10 10 10 m126 0 q10 0 10 -10 m-136 10 h10 m76 0 h10 m0 0 h30 m-136 -10 v20 m146 0 v-20 m-146 20 v24 m146 0 v-24 m-146 24 q0 10 10 10 m126 0 q10 0 10 -10 m-136 10 h10 m68 0 h10 m0 0 h38 m-136 -10 v20 m146 0 v-20 m-146 20 v24 m146 0 v-24 m-146 24 q0 10 10 10 m126 0 q10 0 10 -10 m-136 10 h10 m106 0 h10 m23 -132 h-3"/>
+         d="m17 17 h2 m20 0 h10 m64 0 h10 m0 0 h42 m-146 0 h20 m126 0 h20 m-166 0 q10 0 10 10 m146 0 q0 -10 10 -10 m-156 10 v24 m146 0 v-24 m-146 24 q0 10 10 10 m126 0 q10 0 10 -10 m-136 10 h10 m90 0 h10 m0 0 h16 m-136 -10 v20 m146 0 v-20 m-146 20 v24 m146 0 v-24 m-146 24 q0 10 10 10 m126 0 q10 0 10 -10 m-136 10 h10 m76 0 h10 m0 0 h30 m-136 -10 v20 m146 0 v-20 m-146 20 v24 m146 0 v-24 m-146 24 q0 10 10 10 m126 0 q10 0 10 -10 m-136 10 h10 m68 0 h10 m0 0 h38 m-136 -10 v20 m146 0 v-20 m-146 20 v24 m146 0 v-24 m-146 24 q0 10 10 10 m126 0 q10 0 10 -10 m-136 10 h10 m106 0 h10 m23 -176 h-3"/>
    <polygon points="195 17 203 13 203 21"/>
    <polygon points="195 17 187 13 187 21"/>
 </svg>
diff --git a/apollo-federation/src/sources/connect/json_selection/grammar/LitPath.svg b/apollo-federation/src/sources/connect/json_selection/grammar/LitPath.svg
new file mode 100644
index 00000000000..670f5a19272
--- /dev/null
+++ b/apollo-federation/src/sources/connect/json_selection/grammar/LitPath.svg
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" width="327" height="141">
+   <defs>
+      <style type="text/css">
+    @namespace "http://www.w3.org/2000/svg";
+    .line                 {fill: none; stroke: #332900; stroke-width: 1;}
+    .bold-line            {stroke: #141000; shape-rendering: crispEdges; stroke-width: 2;}
+    .thin-line            {stroke: #1F1800; shape-rendering: crispEdges}
+    .filled               {fill: #332900; stroke: none;}
+    text.terminal         {font-family: Verdana, Sans-serif;
+                            font-size: 12px;
+                            fill: #141000;
+                            font-weight: bold;
+                          }
+    text.nonterminal      {font-family: Verdana, Sans-serif;
+                            font-size: 12px;
+                            fill: #1A1400;
+                            font-weight: normal;
+                          }
+    text.regexp           {font-family: Verdana, Sans-serif;
+                            font-size: 12px;
+                            fill: #1F1800;
+                            font-weight: normal;
+                          }
+    rect, circle, polygon {fill: #332900; stroke: #332900;}
+    rect.terminal         {fill: #FFDB4D; stroke: #332900; stroke-width: 1;}
+    rect.nonterminal      {fill: #FFEC9E; stroke: #332900; stroke-width: 1;}
+    rect.text             {fill: none; stroke: none;}
+    polygon.regexp        {fill: #FFF4C7; stroke: #332900; stroke-width: 1;}
+  </style>
+   </defs>
+   <polygon points="9 33 1 29 1 37"/>
+   <polygon points="17 33 9 29 9 37"/>
+   <a xmlns:xlink="http://www.w3.org/1999/xlink"
+      xlink:href="#LitPrimitive"
+      xlink:title="LitPrimitive">
+      <rect x="51" y="19" width="90" height="32"/>
+      <rect x="49" y="17" width="90" height="32" class="nonterminal"/>
+      <text class="nonterminal" x="59" y="37">LitPrimitive</text>
+   </a>
+   <a xmlns:xlink="http://www.w3.org/1999/xlink"
+      xlink:href="#LitObject"
+      xlink:title="LitObject">
+      <rect x="51" y="63" width="76" height="32"/>
+      <rect x="49" y="61" width="76" height="32" class="nonterminal"/>
+      <text class="nonterminal" x="59" y="81">LitObject</text>
+   </a>
+   <a xmlns:xlink="http://www.w3.org/1999/xlink"
+      xlink:href="#LitArray"
+      xlink:title="LitArray">
+      <rect x="51" y="107" width="68" height="32"/>
+      <rect x="49" y="105" width="68" height="32" class="nonterminal"/>
+      <text class="nonterminal" x="59" y="125">LitArray</text>
+   </a>
+   <a xmlns:xlink="http://www.w3.org/1999/xlink"
+      xlink:href="#PathStep"
+      xlink:title="PathStep">
+      <rect x="201" y="19" width="78" height="32"/>
+      <rect x="199" y="17" width="78" height="32" class="nonterminal"/>
+      <text class="nonterminal" x="209" y="37">PathStep</text>
+   </a>
+   <path class="line"
+         d="m17 33 h2 m20 0 h10 m90 0 h10 m-130 0 h20 m110 0 h20 m-150 0 q10 0 10 10 m130 0 q0 -10 10 -10 m-140 10 v24 m130 0 v-24 m-130 24 q0 10 10 10 m110 0 q10 0 10 -10 m-120 10 h10 m76 0 h10 m0 0 h14 m-120 -10 v20 m130 0 v-20 m-130 20 v24 m130 0 v-24 m-130 24 q0 10 10 10 m110 0 q10 0 10 -10 m-120 10 h10 m68 0 h10 m0 0 h22 m40 -88 h10 m78 0 h10 m-118 0 l20 0 m-1 0 q-9 0 -9 -10 l0 -12 q0 -10 10 -10 m98 32 l20 0 m-20 0 q10 0 10 -10 l0 -12 q0 -10 -10 -10 m-98 0 h10 m0 0 h88 m23 32 h-3"/>
+   <polygon points="317 33 325 29 325 37"/>
+   <polygon points="317 33 309 29 309 37"/>
+</svg>