diff --git a/src/analysis/types.js b/src/analysis/types.js
new file mode 100644
index 0000000..955cfcd
--- /dev/null
+++ b/src/analysis/types.js
@@ -0,0 +1,18 @@
+// @flow
+
+import {type NodeAddressT, type EdgeAddressT} from "../core/graph";
+
+export type EdgeType = {|
+  +forwardName: string,
+  +backwardName: string,
+  +defaultForwardWeight: number,
+  +defaultBackwardWeight: number,
+  +prefix: EdgeAddressT,
+|};
+
+export type NodeType = {|
+  +name: string,
+  +pluralName: string,
+  +prefix: NodeAddressT,
+  +defaultWeight: number,
+|};
diff --git a/src/app/adapters/adapterSet.js b/src/app/adapters/adapterSet.js
index 0d66455..97bc00c 100644
--- a/src/app/adapters/adapterSet.js
+++ b/src/app/adapters/adapterSet.js
@@ -5,12 +5,8 @@ import {NodeTrie, EdgeTrie} from "../../core/trie";
 import type {Assets} from "../assets";
 import type {RepoId} from "../../core/repoId";
 
-import type {
-  StaticPluginAdapter,
-  DynamicPluginAdapter,
-  NodeType,
-  EdgeType,
-} from "./pluginAdapter";
+import type {StaticPluginAdapter, DynamicPluginAdapter} from "./pluginAdapter";
+import type {EdgeType, NodeType} from "../../analysis/types";
 
 import {FallbackStaticAdapter} from "./fallbackAdapter";
 
diff --git a/src/app/adapters/demoAdapters.js b/src/app/adapters/demoAdapters.js
index 0d35eb3..d138955 100644
--- a/src/app/adapters/demoAdapters.js
+++ b/src/app/adapters/demoAdapters.js
@@ -7,12 +7,8 @@ import {
   type NodeAddressT,
   EdgeAddress,
 } from "../../core/graph";
-import type {
-  StaticPluginAdapter,
-  DynamicPluginAdapter,
-  EdgeType,
-  NodeType,
-} from "./pluginAdapter";
+import type {StaticPluginAdapter, DynamicPluginAdapter} from "./pluginAdapter";
+import type {EdgeType, NodeType} from "../../analysis/types";
 
 import {StaticAdapterSet} from "./adapterSet";
 import {makeRepoId, type RepoId} from "../../core/repoId";
diff --git a/src/app/adapters/pluginAdapter.js b/src/app/adapters/pluginAdapter.js
index 2a5851b..1bf601f 100644
--- a/src/app/adapters/pluginAdapter.js
+++ b/src/app/adapters/pluginAdapter.js
@@ -4,21 +4,7 @@ import {type Node as ReactNode} from "react";
 import {Graph, type NodeAddressT, type EdgeAddressT} from "../../core/graph";
 import type {Assets} from "../assets";
 import type {RepoId} from "../../core/repoId";
-
-export type EdgeType = {|
-  +forwardName: string,
-  +backwardName: string,
-  +defaultForwardWeight: number,
-  +defaultBackwardWeight: number,
-  +prefix: EdgeAddressT,
-|};
-
-export type NodeType = {|
-  +name: string,
-  +pluralName: string,
-  +prefix: NodeAddressT,
-  +defaultWeight: number,
-|};
+import type {EdgeType, NodeType} from "../../analysis/types";
 
 export interface StaticPluginAdapter {
   name(): string;
diff --git a/src/app/credExplorer/pagerankTable/Aggregation.test.js b/src/app/credExplorer/pagerankTable/Aggregation.test.js
index 9303eb1..a7c8cf3 100644
--- a/src/app/credExplorer/pagerankTable/Aggregation.test.js
+++ b/src/app/credExplorer/pagerankTable/Aggregation.test.js
@@ -5,7 +5,7 @@ import {shallow} from "enzyme";
 
 import * as NullUtil from "../../../util/null";
 import {NodeAddress, EdgeAddress} from "../../../core/graph";
-import type {NodeType, EdgeType} from "../../adapters/pluginAdapter";
+import type {EdgeType, NodeType} from "../../../analysis/types";
 import {
   AggregationRowList,
   AggregationRow,
diff --git a/src/app/credExplorer/pagerankTable/aggregate.js b/src/app/credExplorer/pagerankTable/aggregate.js
index 47b5796..1305e8c 100644
--- a/src/app/credExplorer/pagerankTable/aggregate.js
+++ b/src/app/credExplorer/pagerankTable/aggregate.js
@@ -4,7 +4,7 @@ import sortBy from "lodash.sortby";
 import stringify from "json-stable-stringify";
 import * as MapUtil from "../../../util/map";
 import {NodeTrie, EdgeTrie} from "../../../core/trie";
-import type {NodeType, EdgeType} from "../../adapters/pluginAdapter";
+import type {EdgeType, NodeType} from "../../../analysis/types";
 import type {ScoredConnection} from "../../../analysis/pagerankNodeDecomposition";
 
 // Sorted by descending `summary.score`
diff --git a/src/app/credExplorer/weights/weights.js b/src/app/credExplorer/weights/weights.js
index 4fbdb52..c689f44 100644
--- a/src/app/credExplorer/weights/weights.js
+++ b/src/app/credExplorer/weights/weights.js
@@ -2,7 +2,7 @@
 
 import * as MapUtil from "../../../util/map";
 import {type NodeAddressT, type EdgeAddressT} from "../../../core/graph";
-import type {NodeType, EdgeType} from "../../adapters/pluginAdapter";
+import type {EdgeType, NodeType} from "../../../analysis/types";
 import type {StaticPluginAdapter} from "../../adapters/pluginAdapter";
 import type {StaticAdapterSet} from "../../adapters/adapterSet";