diff --git a/TODO.md b/TODO.md
index bdf65cb6..8e22d09c 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,5 +1,3 @@
-drop the `net` prefix for `graph/` functions
-
 use unicode for subscript number
 
 rename PortConnect to PortReconnect
diff --git a/src/console/commands/RenderCommand.ts b/src/console/commands/RenderCommand.ts
index 455ebf26..2772a211 100644
--- a/src/console/commands/RenderCommand.ts
+++ b/src/console/commands/RenderCommand.ts
@@ -4,7 +4,7 @@ import ty from "@xieyuheng/ty"
 import fs from "fs"
 import Path from "path"
 import { Net } from "../../lang/graph"
-import { netRun } from "../../lang/graph/netRun"
+import { run } from "../../lang/graph/run"
 import { Mod } from "../../lang/mod"
 import { createMod } from "../../lang/mod/createMod"
 import { modAllNetNames } from "../../lang/mod/modAllNetNames"
@@ -80,7 +80,7 @@ export class RenderCommand extends Command<Args, Opts> {
 async function renderNet(mod: Mod, file: string, name: string): Promise<void> {
   const net = modBuildNet(mod, name)
   renderFile(net, `${file}.${name}.initial.txt`)
-  netRun(net)
+  run(net)
   renderFile(net, `${file}.${name}.finial.txt`)
 }
 
diff --git a/src/lang/definitions/NodeDefinition.ts b/src/lang/definitions/NodeDefinition.ts
index 81b0c713..39eb27b4 100644
--- a/src/lang/definitions/NodeDefinition.ts
+++ b/src/lang/definitions/NodeDefinition.ts
@@ -1,6 +1,6 @@
 import { Definition } from "../definition"
 import { Net, Node, createNode } from "../graph"
-import { netConnectPorts } from "../graph/netConnectPorts"
+import { connectPorts } from "../graph/connectPorts"
 import { Mod } from "../mod"
 import { PortExp } from "../stmts"
 
@@ -22,7 +22,7 @@ export class NodeDefinition implements Definition {
         throw new Error(`I expect a port on top of the stack`)
       }
 
-      netConnectPorts(net, top, port)
+      connectPorts(net, top, port)
     }
 
     net.portStack.push(...node.output)
diff --git a/src/lang/graph/cleanUpWires.ts b/src/lang/graph/cleanUpWires.ts
new file mode 100644
index 00000000..105b9621
--- /dev/null
+++ b/src/lang/graph/cleanUpWires.ts
@@ -0,0 +1,20 @@
+import { Net } from "./Net"
+import { connectPorts } from "./connectPorts"
+import { removeEdge } from "./removeEdge"
+import { removeNode } from "./removeNode"
+
+export function cleanUpWires(net: Net): void {
+  for (const wire of net.wires) {
+    if (wire.start.connection && wire.end.connection) {
+      removeEdge(net, wire.start.connection.edge)
+      removeEdge(net, wire.end.connection.edge)
+
+      removeNode(net, wire.start.node)
+      removeNode(net, wire.end.node)
+
+      connectPorts(net, wire.start.connection.port, wire.end.connection.port)
+    }
+  }
+
+  net.wires = []
+}
diff --git a/src/lang/graph/netCloseFreePorts.ts b/src/lang/graph/closeFreePorts.ts
similarity index 78%
rename from src/lang/graph/netCloseFreePorts.ts
rename to src/lang/graph/closeFreePorts.ts
index 1f003202..45ce72a5 100644
--- a/src/lang/graph/netCloseFreePorts.ts
+++ b/src/lang/graph/closeFreePorts.ts
@@ -1,8 +1,8 @@
+import { Node } from "."
 import * as Definitions from "../definitions"
-import { Node } from "../graph"
 import { Net } from "./Net"
 
-export function netCloseFreePorts(net: Net): Node | undefined {
+export function closeFreePorts(net: Net): Node | undefined {
   if (net.portStack.length === 0) return undefined
 
   const name = "*free-ports-closer*"
diff --git a/src/lang/graph/netConnectPorts.ts b/src/lang/graph/connectPorts.ts
similarity index 83%
rename from src/lang/graph/netConnectPorts.ts
rename to src/lang/graph/connectPorts.ts
index 9dadc925..280771dd 100644
--- a/src/lang/graph/netConnectPorts.ts
+++ b/src/lang/graph/connectPorts.ts
@@ -2,7 +2,7 @@ import { Net, Port, createEdge } from "."
 import { lookupRuleByPorts } from "../mod/lookupRuleByPorts"
 import { createActiveEdge } from "./createActiveEdge"
 
-export function netConnectPorts(net: Net, start: Port, end: Port): void {
+export function connectPorts(net: Net, start: Port, end: Port): void {
   const rule = lookupRuleByPorts(net.mod, start, end)
 
   if (rule !== undefined) {
diff --git a/src/lang/graph/interact.ts b/src/lang/graph/interact.ts
index 049ed252..8886c056 100644
--- a/src/lang/graph/interact.ts
+++ b/src/lang/graph/interact.ts
@@ -1,7 +1,7 @@
 import { ActiveEdge, Net, Node } from "../graph"
 import { Mod } from "../mod"
-import { netRemoveEdge } from "./netRemoveEdge"
-import { netRemoveNode } from "./netRemoveNode"
+import { removeEdge } from "./removeEdge"
+import { removeNode } from "./removeNode"
 
 export function interact(mod: Mod, net: Net, activeEdge: ActiveEdge): void {
   disconnectNode(net, activeEdge.end.node)
@@ -14,12 +14,12 @@ export function interact(mod: Mod, net: Net, activeEdge: ActiveEdge): void {
 
 function disconnectNode(net: Net, node: Node): void {
   for (const port of node.input) {
-    port.connection && netRemoveEdge(net, port.connection.edge)
+    port.connection && removeEdge(net, port.connection.edge)
   }
 
   for (const port of node.output) {
-    port.connection && netRemoveEdge(net, port.connection.edge)
+    port.connection && removeEdge(net, port.connection.edge)
   }
 
-  netRemoveNode(net, node)
+  removeNode(net, node)
 }
diff --git a/src/lang/graph/netCleanUpWires.ts b/src/lang/graph/netCleanUpWires.ts
deleted file mode 100644
index d1772ae8..00000000
--- a/src/lang/graph/netCleanUpWires.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-import { Net } from "./Net"
-import { netConnectPorts } from "./netConnectPorts"
-import { netRemoveEdge } from "./netRemoveEdge"
-import { netRemoveNode } from "./netRemoveNode"
-
-export function netCleanUpWires(net: Net): void {
-  for (const wire of net.wires) {
-    if (wire.start.connection && wire.end.connection) {
-      netRemoveEdge(net, wire.start.connection.edge)
-      netRemoveEdge(net, wire.end.connection.edge)
-
-      netRemoveNode(net, wire.start.node)
-      netRemoveNode(net, wire.end.node)
-
-      netConnectPorts(net, wire.start.connection.port, wire.end.connection.port)
-    }
-  }
-
-  net.wires = []
-}
diff --git a/src/lang/graph/netReleaseFreePorts.ts b/src/lang/graph/releaseFreePorts.ts
similarity index 55%
rename from src/lang/graph/netReleaseFreePorts.ts
rename to src/lang/graph/releaseFreePorts.ts
index 62459106..a89b9b33 100644
--- a/src/lang/graph/netReleaseFreePorts.ts
+++ b/src/lang/graph/releaseFreePorts.ts
@@ -1,10 +1,10 @@
+import { Node } from "."
 import { InternalError } from "../errors"
-import { Node } from "../graph"
 import { Net } from "./Net"
-import { netRemoveEdge } from "./netRemoveEdge"
-import { netRemoveNode } from "./netRemoveNode"
+import { removeEdge } from "./removeEdge"
+import { removeNode } from "./removeNode"
 
-export function netReleaseFreePorts(net: Net, closer: Node | undefined): void {
+export function releaseFreePorts(net: Net, closer: Node | undefined): void {
   if (closer === undefined) return
 
   for (const port of closer.input.reverse()) {
@@ -15,8 +15,8 @@ export function netReleaseFreePorts(net: Net, closer: Node | undefined): void {
     }
 
     net.portStack.push(port.connection.port)
-    netRemoveEdge(net, port.connection.edge)
+    removeEdge(net, port.connection.edge)
   }
 
-  netRemoveNode(net, closer)
+  removeNode(net, closer)
 }
diff --git a/src/lang/graph/netRemoveEdge.ts b/src/lang/graph/removeEdge.ts
similarity index 50%
rename from src/lang/graph/netRemoveEdge.ts
rename to src/lang/graph/removeEdge.ts
index 1bfb752a..6f4913d8 100644
--- a/src/lang/graph/netRemoveEdge.ts
+++ b/src/lang/graph/removeEdge.ts
@@ -1,6 +1,6 @@
-import { Edge, Net } from "../graph"
+import { Edge, Net } from "."
 
-export function netRemoveEdge(net: Net, edge: Edge): void {
+export function removeEdge(net: Net, edge: Edge): void {
   const index = net.edges.indexOf(edge)
   if (index !== -1) {
     net.edges.splice(index, 1)
diff --git a/src/lang/graph/netRemoveNode.ts b/src/lang/graph/removeNode.ts
similarity index 50%
rename from src/lang/graph/netRemoveNode.ts
rename to src/lang/graph/removeNode.ts
index 9064b3fe..c3079e16 100644
--- a/src/lang/graph/netRemoveNode.ts
+++ b/src/lang/graph/removeNode.ts
@@ -1,6 +1,6 @@
-import { Net, Node } from "../graph"
+import { Net, Node } from "."
 
-export function netRemoveNode(net: Net, node: Node): void {
+export function removeNode(net: Net, node: Node): void {
   const index = net.nodes.indexOf(node)
   if (index !== -1) {
     net.nodes.splice(index, 1)
diff --git a/src/lang/graph/netRun.ts b/src/lang/graph/run.ts
similarity index 60%
rename from src/lang/graph/netRun.ts
rename to src/lang/graph/run.ts
index 57e99eac..01c7c2af 100644
--- a/src/lang/graph/netRun.ts
+++ b/src/lang/graph/run.ts
@@ -1,19 +1,19 @@
 import { InternalError } from "../errors"
 import { Net } from "./Net"
+import { cleanUpWires } from "./cleanUpWires"
+import { closeFreePorts } from "./closeFreePorts"
 import { interact } from "./interact"
-import { netCleanUpWires } from "./netCleanUpWires"
-import { netCloseFreePorts } from "./netCloseFreePorts"
-import { netReleaseFreePorts } from "./netReleaseFreePorts"
+import { releaseFreePorts } from "./releaseFreePorts"
 
-export function netRun(net: Net): void {
-  const closer = netCloseFreePorts(net)
+export function run(net: Net): void {
+  const closer = closeFreePorts(net)
 
   while (net.activeEdges.length > 0) {
     netStep(net)
   }
 
-  netCleanUpWires(net)
-  netReleaseFreePorts(net, closer)
+  cleanUpWires(net)
+  releaseFreePorts(net, closer)
 }
 
 function netStep(net: Net): void {
diff --git a/src/lang/mod/defineBuiltInOperators.ts b/src/lang/mod/defineBuiltInOperators.ts
index 3d9698e3..7ae4350b 100644
--- a/src/lang/mod/defineBuiltInOperators.ts
+++ b/src/lang/mod/defineBuiltInOperators.ts
@@ -1,5 +1,5 @@
 import { Port, createNode } from "../graph"
-import { netConnectPorts } from "../graph/netConnectPorts"
+import { connectPorts } from "../graph/connectPorts"
 import { Mod } from "../mod"
 import { defineOperator } from "./defineOperator"
 
@@ -20,7 +20,7 @@ export function defineBuiltInOperators(mod: Mod): void {
   defineOperator(mod, "connect", (net) => {
     const start = net.portStack.pop() as Port
     const end = net.portStack.pop() as Port
-    netConnectPorts(net, start, end)
+    connectPorts(net, start, end)
   })
 
   defineOperator(mod, "wire", (net) => {
diff --git a/src/lang/mod/modBuildNet.ts b/src/lang/mod/modBuildNet.ts
index 19afb81e..fad0b657 100644
--- a/src/lang/mod/modBuildNet.ts
+++ b/src/lang/mod/modBuildNet.ts
@@ -1,12 +1,12 @@
 import { Net } from "../graph"
+import { cleanUpWires } from "../graph/cleanUpWires"
 import { createNet } from "../graph/createNet"
-import { netCleanUpWires } from "../graph/netCleanUpWires"
 import { Mod } from "./Mod"
 import { lookupNetDefinitionOrFail } from "./lookupNetDefinitionOrFail"
 
 export function modBuildNet(mod: Mod, name: string): Net {
   const net = createNet(mod)
   lookupNetDefinitionOrFail(mod, name).meaning(net)
-  netCleanUpWires(net)
+  cleanUpWires(net)
   return net
 }
diff --git a/src/lang/words/PortConnect.ts b/src/lang/words/PortConnect.ts
index 3a60e885..0ab03dee 100644
--- a/src/lang/words/PortConnect.ts
+++ b/src/lang/words/PortConnect.ts
@@ -1,6 +1,6 @@
 import { Net } from "../graph"
+import { connectPorts } from "../graph/connectPorts"
 import { findPortInActiveEdge } from "../graph/findPortInActiveEdge"
-import { netConnectPorts } from "../graph/netConnectPorts"
 import { Mod } from "../mod"
 import { Span } from "../span"
 import { Word, WordOptions } from "../word"
@@ -33,6 +33,6 @@ export class PortConnect implements Word {
       throw new Error(`[PortConnect.apply] expect top port`)
     }
 
-    netConnectPorts(net, topPort, found)
+    connectPorts(net, topPort, found)
   }
 }