diff --git a/go.mod b/go.mod
index 27a6d5f8..c2630db6 100644
--- a/go.mod
+++ b/go.mod
@@ -2,6 +2,10 @@ module github.com/checkmarx/ast-cli
 
 go 1.26.6
 
+// TODO: remove once ast-cx-hooks publishes a release with Codex CLI support
+// (currently only on the "codex" branch, commit 8bafa41).
+replace github.com/Checkmarx/ast-cx-hooks => ../ast-cx-hooks
+
 require (
 	github.com/Checkmarx/ast-cx-hooks v1.0.6
 	github.com/Checkmarx/containers-resolver v1.0.34
diff --git a/go.sum b/go.sum
index 34b4cffe..d0346176 100644
--- a/go.sum
+++ b/go.sum
@@ -65,8 +65,6 @@ github.com/BurntSushi/toml v0.4.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbi
 github.com/BurntSushi/toml v1.6.0 h1:dRaEfpa2VI55EwlIW72hMRHdWouJeRF7TPYhI+AUQjk=
 github.com/BurntSushi/toml v1.6.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/Checkmarx/ast-cx-hooks v1.0.6 h1:8/Kcl9V0XKeY1vgTKJR6eIfXXoa4c9DgUOBuY1Ms268=
-github.com/Checkmarx/ast-cx-hooks v1.0.6/go.mod h1:GPHk8IJHQlCW7l8ye9/Bij57zYQGRG+pxJPiGgsR8cY=
 github.com/Checkmarx/containers-images-extractor v1.0.22 h1:kJZgwk28LwJZ7Xky+kzwL+JSZOlpwrGsZQhhz4L2t6s=
 github.com/Checkmarx/containers-images-extractor v1.0.22/go.mod h1:HyzVb8TtTDf56hGlSakalPXtzjJ6VhTYe9fmAcOS+V8=
 github.com/Checkmarx/containers-resolver v1.0.34 h1:KULN8s8xb1tQtdH4yzHVdwN8GyLqtPCAkFWra10k7V0=
diff --git a/internal/commands/agenthooks/cx/hooks.go b/internal/commands/agenthooks/cx/hooks.go
index 0bacd8b3..c333685a 100644
--- a/internal/commands/agenthooks/cx/hooks.go
+++ b/internal/commands/agenthooks/cx/hooks.go
@@ -276,6 +276,8 @@ func agentToString(agent agenthooks.AgentID) string {
 		return "Droid"
 	case agenthooks.AgentWindsurf:
 		return "Windsurf"
+	case agenthooks.AgentCodex:
+		return "Codex"
 	default:
 		return "Unknown"
 	}
diff --git a/internal/commands/agenthooks/cx/hooks_test.go b/internal/commands/agenthooks/cx/hooks_test.go
index e11f2da7..dd5fbde7 100644
--- a/internal/commands/agenthooks/cx/hooks_test.go
+++ b/internal/commands/agenthooks/cx/hooks_test.go
@@ -621,6 +621,7 @@ func TestAgentToString(t *testing.T) {
 		{"gemini", agenthooks.AgentGemini, "Gemini"},
 		{"droid", agenthooks.AgentDroid, "Droid"},
 		{"windsurf", agenthooks.AgentWindsurf, "Windsurf"},
+		{"codex", agenthooks.AgentCodex, "Codex"},
 		{"unknown", agenthooks.AgentID("something-else"), "Unknown"},
 	}
 	for _, tt := range tests {
diff --git a/internal/commands/agenthooks/cx/install.go b/internal/commands/agenthooks/cx/install.go
index a47e829a..9b3a7504 100644
--- a/internal/commands/agenthooks/cx/install.go
+++ b/internal/commands/agenthooks/cx/install.go
@@ -104,6 +104,18 @@ var Agents = []Agent{
 			{"copilot-cli-user-prompt-submit", "Gate GitHub Copilot CLI prompt"},
 		},
 	},
+	{
+		ID:          "codex",
+		DisplayName: "OpenAI Codex CLI",
+		ConfigPath:  "~/.codex/hooks.json",
+		Install:     install.InstallCodex,
+		Routes: []Route{
+			{"codex-stop", "Codex CLI agent finished"},
+			{"codex-pre-tool-use", "Gate Codex CLI tool use"},
+			{"codex-pre-file-write", "Gate Codex CLI file write"},
+			{"codex-user-prompt-submit", "Gate Codex CLI prompt"},
+		},
+	},
 }
 
 // FindAgent returns the Agent with the given ID, or nil if not found.
diff --git a/internal/commands/agenthooks/cx/install_test.go b/internal/commands/agenthooks/cx/install_test.go
index 1692bd60..e9d162b6 100644
--- a/internal/commands/agenthooks/cx/install_test.go
+++ b/internal/commands/agenthooks/cx/install_test.go
@@ -42,6 +42,44 @@ func TestFindAgentCopilot(t *testing.T) {
 	}
 }
 
+// TestFindAgentCodex pins the OpenAI Codex CLI agent entry: its config path
+// and the curated route set the installer mirrors. The route Use names must match
+// the codex-* routes ast-cx-hooks registers, or `cx hooks agenthooks install
+// codex` would write commands that don't resolve.
+func TestFindAgentCodex(t *testing.T) {
+	agent := FindAgent("codex")
+	if agent == nil {
+		t.Fatal("FindAgent(\"codex\") returned nil; Codex agent not registered")
+	}
+	if agent.DisplayName != "OpenAI Codex CLI" {
+		t.Errorf("DisplayName = %q, want %q", agent.DisplayName, "OpenAI Codex CLI")
+	}
+	if agent.ConfigPath != "~/.codex/hooks.json" {
+		t.Errorf("ConfigPath = %q, want %q", agent.ConfigPath, "~/.codex/hooks.json")
+	}
+	if agent.Install == nil {
+		t.Error("Install func is nil")
+	}
+
+	wantRoutes := []string{
+		"codex-stop",
+		"codex-pre-tool-use",
+		"codex-pre-file-write",
+		"codex-user-prompt-submit",
+	}
+	if len(agent.Routes) != len(wantRoutes) {
+		t.Fatalf("got %d routes, want %d: %+v", len(agent.Routes), len(wantRoutes), agent.Routes)
+	}
+	for i, want := range wantRoutes {
+		if agent.Routes[i].Use != want {
+			t.Errorf("Routes[%d].Use = %q, want %q", i, agent.Routes[i].Use, want)
+		}
+		if agent.Routes[i].Short == "" {
+			t.Errorf("Routes[%d] (%q) has empty Short description", i, want)
+		}
+	}
+}
+
 // TestFindAgentUnknown verifies FindAgent returns nil for an unregistered id.
 func TestFindAgentUnknown(t *testing.T) {
 	if a := FindAgent("not-a-real-agent"); a != nil {
diff --git a/internal/commands/hooks.go b/internal/commands/hooks.go
index 2f33419a..65c9b5c4 100644
--- a/internal/commands/hooks.go
+++ b/internal/commands/hooks.go
@@ -14,7 +14,7 @@ func NewHooksCommand(jwtWrapper wrappers.JWTWrapper, featureFlagsWrapper wrapper
 	hooksCmd := &cobra.Command{
 		Use:   "hooks",
 		Short: "Manage Git hooks and AI coding agent hooks",
-		Long:  "The hooks command manages Git hooks for secret detection and AI coding agent hooks for Claude, Cursor, Windsurf, Factory Droid, Gemini, and GitHub Copilot CLI.",
+		Long:  "The hooks command manages Git hooks for secret detection and AI coding agent hooks for Claude, Cursor, Windsurf, Factory Droid, Gemini, GitHub Copilot CLI, and OpenAI Codex CLI.",
 		Example: heredoc.Doc(
 			`
 			$ cx hooks pre-commit secrets-install-git-hook