diff --git a/Makefile b/Makefile
index 4340b5f..2a84fdf 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ LDFLAGS = ""
 
 # If VERSION is set, inject into binary
 ifdef VERSION
-	LDFLAGS = -ldflags "-X '$(MODULE_PATH).version=$(VERSION)'"
+	LDFLAGS = -ldflags "-X '$(MODULE_PATH).Version=$(VERSION)'"
 endif
 
 .PHONY: build install agent-dev test coverage
diff --git a/cmd/core-agent/commands_test.go b/cmd/core-agent/commands_test.go
index a8497c1..2075f70 100644
--- a/cmd/core-agent/commands_test.go
+++ b/cmd/core-agent/commands_test.go
@@ -7,6 +7,7 @@ import (
 	"os"
 	"testing"
 
+	agentpkg "dappco.re/go/agent"
 	"dappco.re/go/core"
 	"github.com/stretchr/testify/assert"
 )
@@ -85,9 +86,9 @@ func TestCommands_RegisterAppCommands_Good(t *testing.T) {
 
 func TestCommands_Version_Good(t *testing.T) {
 	c := newTestCore(t)
-	version = "0.8.0"
+	agentpkg.Version = "0.8.0"
 	t.Cleanup(func() {
-		version = ""
+		agentpkg.Version = ""
 	})
 
 	r := c.Cli().Run("version")
@@ -96,7 +97,7 @@ func TestCommands_Version_Good(t *testing.T) {
 
 func TestCommands_VersionDev_Bad(t *testing.T) {
 	c := newTestCore(t)
-	version = ""
+	agentpkg.Version = ""
 	c.App().Version = "dev"
 
 	r := c.Cli().Run("version")
diff --git a/cmd/core-agent/main.go b/cmd/core-agent/main.go
index d3bb324..f1b6638 100644
--- a/cmd/core-agent/main.go
+++ b/cmd/core-agent/main.go
@@ -6,6 +6,7 @@ import (
 	"context"
 	"syscall"
 
+	agentpkg "dappco.re/go/agent"
 	"dappco.re/go/core"
 
 	"dappco.re/go/agent/pkg/agentic"
@@ -49,11 +50,11 @@ func newCoreAgent() *core.Core {
 
 // appVersion resolves the build version injected at link time.
 //
-//	version = "0.15.0"
+//	agentpkg.Version = "0.15.0"
 //	appVersion() // "0.15.0"
 func appVersion() string {
-	if version != "" {
-		return version
+	if agentpkg.Version != "" {
+		return agentpkg.Version
 	}
 	return "dev"
 }
diff --git a/cmd/core-agent/main_example_test.go b/cmd/core-agent/main_example_test.go
index 6c2d9d9..72a7f41 100644
--- a/cmd/core-agent/main_example_test.go
+++ b/cmd/core-agent/main_example_test.go
@@ -2,12 +2,15 @@
 
 package main
 
-import core "dappco.re/go/core"
+import (
+	agentpkg "dappco.re/go/agent"
+	core "dappco.re/go/core"
+)
 
 func Example_newCoreAgent() {
-	oldVersion := version
-	version = "0.15.0"
-	defer func() { version = oldVersion }()
+	oldVersion := agentpkg.Version
+	agentpkg.Version = "0.15.0"
+	defer func() { agentpkg.Version = oldVersion }()
 
 	c := newCoreAgent()
 	core.Println(c.App().Name)
@@ -20,9 +23,9 @@ func Example_newCoreAgent() {
 }
 
 func Example_appVersion() {
-	oldVersion := version
-	version = "0.15.0"
-	defer func() { version = oldVersion }()
+	oldVersion := agentpkg.Version
+	agentpkg.Version = "0.15.0"
+	defer func() { agentpkg.Version = oldVersion }()
 
 	core.Println(appVersion())
 	// Output: 0.15.0
diff --git a/cmd/core-agent/main_test.go b/cmd/core-agent/main_test.go
index 7900f5c..9e400c6 100644
--- a/cmd/core-agent/main_test.go
+++ b/cmd/core-agent/main_test.go
@@ -5,6 +5,7 @@ package main
 import (
 	"testing"
 
+	agentpkg "dappco.re/go/agent"
 	"dappco.re/go/agent/pkg/agentic"
 	"dappco.re/go/agent/pkg/brain"
 	"dappco.re/go/agent/pkg/monitor"
@@ -16,9 +17,9 @@ import (
 
 func withVersion(t *testing.T, value string) {
 	t.Helper()
-	oldVersion := version
-	version = value
-	t.Cleanup(func() { version = oldVersion })
+	oldVersion := agentpkg.Version
+	agentpkg.Version = value
+	t.Cleanup(func() { agentpkg.Version = oldVersion })
 }
 
 func TestMain_NewCoreAgent_Good(t *testing.T) {
diff --git a/cmd/core-agent/update.go b/cmd/core-agent/update.go
index 68890d4..33a9655 100644
--- a/cmd/core-agent/update.go
+++ b/cmd/core-agent/update.go
@@ -2,26 +2,19 @@
 
 package main
 
-// version is set at build time via ldflags:
-//
-//	go build -ldflags "-X 'dappco.re/go/agent.version=0.15.0'" ./cmd/core-agent/
-var version string
+import agentpkg "dappco.re/go/agent"
 
 // updateChannel maps the build version to the release channel.
 //
-//	version = "0.15.0"
+//	agentpkg.Version = "0.15.0"
 //	updateChannel() // "stable"
 func updateChannel() string {
 	switch {
-	case version == "" || version == "dev":
+	case agentpkg.Version == "" || agentpkg.Version == "dev":
 		return "dev"
-	case len(version) > 0 && (version[len(version)-1] >= 'a'):
+	case len(agentpkg.Version) > 0 && (agentpkg.Version[len(agentpkg.Version)-1] >= 'a'):
 		return "prerelease"
 	default:
 		return "stable"
 	}
 }
-
-// TODO: wire go-update UpdateService for self-update command
-// Channels: stable → GitHub releases, prerelease → GitHub dev, dev → Forge main
-// Parked until version var moves to module root package (dappco.re/go/agent.Version)
diff --git a/cmd/core-agent/update_example_test.go b/cmd/core-agent/update_example_test.go
index 1e99b38..8062a1b 100644
--- a/cmd/core-agent/update_example_test.go
+++ b/cmd/core-agent/update_example_test.go
@@ -2,12 +2,15 @@
 
 package main
 
-import core "dappco.re/go/core"
+import (
+	agentpkg "dappco.re/go/agent"
+	core "dappco.re/go/core"
+)
 
 func Example_updateChannel() {
-	oldVersion := version
-	version = "0.15.0-alpha"
-	defer func() { version = oldVersion }()
+	oldVersion := agentpkg.Version
+	agentpkg.Version = "0.15.0-alpha"
+	defer func() { agentpkg.Version = oldVersion }()
 
 	core.Println(updateChannel())
 	// Output: prerelease
diff --git a/cmd/core-agent/update_test.go b/cmd/core-agent/update_test.go
index 3200da8..36fe48f 100644
--- a/cmd/core-agent/update_test.go
+++ b/cmd/core-agent/update_test.go
@@ -5,56 +5,57 @@ package main
 import (
 	"testing"
 
+	agentpkg "dappco.re/go/agent"
 	"github.com/stretchr/testify/assert"
 )
 
 func TestUpdate_UpdateChannel_Good(t *testing.T) {
-	version = "1.0.0"
+	agentpkg.Version = "1.0.0"
 	t.Cleanup(func() {
-		version = ""
+		agentpkg.Version = ""
 	})
 	assert.Equal(t, "stable", updateChannel())
 }
 
 func TestUpdate_UpdateChannelDev_Good(t *testing.T) {
-	version = "dev"
+	agentpkg.Version = "dev"
 	t.Cleanup(func() {
-		version = ""
+		agentpkg.Version = ""
 	})
 	assert.Equal(t, "dev", updateChannel())
 }
 
 func TestUpdate_UpdateChannelEmpty_Bad(t *testing.T) {
-	version = ""
+	agentpkg.Version = ""
 	assert.Equal(t, "dev", updateChannel())
 }
 
 func TestUpdate_UpdateChannelPrerelease_Ugly(t *testing.T) {
-	version = "0.8.0-alpha"
+	agentpkg.Version = "0.8.0-alpha"
 	t.Cleanup(func() {
-		version = ""
+		agentpkg.Version = ""
 	})
 	assert.Equal(t, "prerelease", updateChannel())
 }
 
 func TestUpdate_UpdateChannelNumericSuffix_Ugly(t *testing.T) {
-	version = "0.8.0-beta.1"
+	agentpkg.Version = "0.8.0-beta.1"
 	t.Cleanup(func() {
-		version = ""
+		agentpkg.Version = ""
 	})
 	// Ends in '1' which is < 'a', so stable
 	assert.Equal(t, "stable", updateChannel())
 }
 
 func TestUpdate_AppVersion_Good(t *testing.T) {
-	version = "1.2.3"
+	agentpkg.Version = "1.2.3"
 	t.Cleanup(func() {
-		version = ""
+		agentpkg.Version = ""
 	})
 	assert.Equal(t, "1.2.3", appVersion())
 }
 
 func TestUpdate_AppVersion_Bad(t *testing.T) {
-	version = ""
+	agentpkg.Version = ""
 	assert.Equal(t, "dev", appVersion())
 }
diff --git a/version.go b/version.go
new file mode 100644
index 0000000..f81b8c3
--- /dev/null
+++ b/version.go
@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: EUPL-1.2
+
+package agent
+
+// Version is injected at build time via ldflags.
+//
+//	go build -ldflags "-X 'dappco.re/go/agent.Version=0.15.0'" ./cmd/core-agent/
+var Version string