diff --git a/pkg/workflow/testdata/TestWasmGolden_CompileFixtures/basic-copilot.golden b/pkg/workflow/testdata/TestWasmGolden_CompileFixtures/basic-copilot.golden
index 7b8c80243d..0f28d6ab32 100644
--- a/pkg/workflow/testdata/TestWasmGolden_CompileFixtures/basic-copilot.golden
+++ b/pkg/workflow/testdata/TestWasmGolden_CompileFixtures/basic-copilot.golden
@@ -309,7 +309,7 @@ jobs:
             const determineAutomaticLockdown = require('${{ runner.temp }}/gh-aw/actions/determine_automatic_lockdown.cjs');
             await determineAutomaticLockdown(github, context, core);
       - name: Download container images
-        run: bash "${RUNNER_TEMP}/gh-aw/actions/download_docker_images.sh" ghcr.io/github/gh-aw-firewall/agent:0.25.20 ghcr.io/github/gh-aw-firewall/api-proxy:0.25.20 ghcr.io/github/gh-aw-firewall/squid:0.25.20 ghcr.io/github/gh-aw-mcpg:v0.2.17 ghcr.io/github/github-mcp-server:v0.32.0
+        run: bash "${RUNNER_TEMP}/gh-aw/actions/download_docker_images.sh" ghcr.io/github/gh-aw-firewall/agent:0.25.20 ghcr.io/github/gh-aw-firewall/api-proxy:0.25.20 ghcr.io/github/gh-aw-firewall/squid:0.25.20 ghcr.io/github/gh-aw-mcpg:v0.2.19 ghcr.io/github/github-mcp-server:v0.32.0
       - name: Start MCP Gateway
         id: start-mcp-gateway
         env:
@@ -332,7 +332,7 @@ jobs:
           export DEBUG="*"
           
           export GH_AW_ENGINE="copilot"
-          export MCP_GATEWAY_DOCKER_COMMAND='docker run -i --rm --network host -v /var/run/docker.sock:/var/run/docker.sock -e MCP_GATEWAY_PORT -e MCP_GATEWAY_DOMAIN -e MCP_GATEWAY_API_KEY -e MCP_GATEWAY_PAYLOAD_DIR -e MCP_GATEWAY_PAYLOAD_SIZE_THRESHOLD -e DEBUG -e MCP_GATEWAY_LOG_DIR -e GH_AW_MCP_LOG_DIR -e GH_AW_SAFE_OUTPUTS -e GH_AW_SAFE_OUTPUTS_CONFIG_PATH -e GH_AW_SAFE_OUTPUTS_TOOLS_PATH -e GH_AW_ASSETS_BRANCH -e GH_AW_ASSETS_MAX_SIZE_KB -e GH_AW_ASSETS_ALLOWED_EXTS -e DEFAULT_BRANCH -e GITHUB_MCP_SERVER_TOKEN -e GITHUB_MCP_GUARD_MIN_INTEGRITY -e GITHUB_MCP_GUARD_REPOS -e GITHUB_REPOSITORY -e GITHUB_SERVER_URL -e GITHUB_SHA -e GITHUB_WORKSPACE -e GITHUB_TOKEN -e GITHUB_RUN_ID -e GITHUB_RUN_NUMBER -e GITHUB_RUN_ATTEMPT -e GITHUB_JOB -e GITHUB_ACTION -e GITHUB_EVENT_NAME -e GITHUB_EVENT_PATH -e GITHUB_ACTOR -e GITHUB_ACTOR_ID -e GITHUB_TRIGGERING_ACTOR -e GITHUB_WORKFLOW -e GITHUB_WORKFLOW_REF -e GITHUB_WORKFLOW_SHA -e GITHUB_REF -e GITHUB_REF_NAME -e GITHUB_REF_TYPE -e GITHUB_HEAD_REF -e GITHUB_BASE_REF -v /tmp/gh-aw/mcp-payloads:/tmp/gh-aw/mcp-payloads:rw -v /opt:/opt:ro -v /tmp:/tmp:rw -v '"${GITHUB_WORKSPACE}"':'"${GITHUB_WORKSPACE}"':rw ghcr.io/github/gh-aw-mcpg:v0.2.17'
+          export MCP_GATEWAY_DOCKER_COMMAND='docker run -i --rm --network host -v /var/run/docker.sock:/var/run/docker.sock -e MCP_GATEWAY_PORT -e MCP_GATEWAY_DOMAIN -e MCP_GATEWAY_API_KEY -e MCP_GATEWAY_PAYLOAD_DIR -e MCP_GATEWAY_PAYLOAD_SIZE_THRESHOLD -e DEBUG -e MCP_GATEWAY_LOG_DIR -e GH_AW_MCP_LOG_DIR -e GH_AW_SAFE_OUTPUTS -e GH_AW_SAFE_OUTPUTS_CONFIG_PATH -e GH_AW_SAFE_OUTPUTS_TOOLS_PATH -e GH_AW_ASSETS_BRANCH -e GH_AW_ASSETS_MAX_SIZE_KB -e GH_AW_ASSETS_ALLOWED_EXTS -e DEFAULT_BRANCH -e GITHUB_MCP_SERVER_TOKEN -e GITHUB_MCP_GUARD_MIN_INTEGRITY -e GITHUB_MCP_GUARD_REPOS -e GITHUB_REPOSITORY -e GITHUB_SERVER_URL -e GITHUB_SHA -e GITHUB_WORKSPACE -e GITHUB_TOKEN -e GITHUB_RUN_ID -e GITHUB_RUN_NUMBER -e GITHUB_RUN_ATTEMPT -e GITHUB_JOB -e GITHUB_ACTION -e GITHUB_EVENT_NAME -e GITHUB_EVENT_PATH -e GITHUB_ACTOR -e GITHUB_ACTOR_ID -e GITHUB_TRIGGERING_ACTOR -e GITHUB_WORKFLOW -e GITHUB_WORKFLOW_REF -e GITHUB_WORKFLOW_SHA -e GITHUB_REF -e GITHUB_REF_NAME -e GITHUB_REF_TYPE -e GITHUB_HEAD_REF -e GITHUB_BASE_REF -v /tmp/gh-aw/mcp-payloads:/tmp/gh-aw/mcp-payloads:rw -v /opt:/opt:ro -v /tmp:/tmp:rw -v '"${GITHUB_WORKSPACE}"':'"${GITHUB_WORKSPACE}"':rw ghcr.io/github/gh-aw-mcpg:v0.2.19'
           
           mkdir -p /home/runner/.copilot
           cat << GH_AW_MCP_CONFIG_NORM_EOF | bash "${RUNNER_TEMP}/gh-aw/actions/start_mcp_gateway.sh"
diff --git a/pkg/workflow/testdata/TestWasmGolden_CompileFixtures/with-imports.golden b/pkg/workflow/testdata/TestWasmGolden_CompileFixtures/with-imports.golden
index d49e59cd45..b03bd40a75 100644
--- a/pkg/workflow/testdata/TestWasmGolden_CompileFixtures/with-imports.golden
+++ b/pkg/workflow/testdata/TestWasmGolden_CompileFixtures/with-imports.golden
@@ -310,7 +310,7 @@ jobs:
             const determineAutomaticLockdown = require('${{ runner.temp }}/gh-aw/actions/determine_automatic_lockdown.cjs');
             await determineAutomaticLockdown(github, context, core);
       - name: Download container images
-        run: bash "${RUNNER_TEMP}/gh-aw/actions/download_docker_images.sh" ghcr.io/github/gh-aw-firewall/agent:0.25.20 ghcr.io/github/gh-aw-firewall/api-proxy:0.25.20 ghcr.io/github/gh-aw-firewall/squid:0.25.20 ghcr.io/github/gh-aw-mcpg:v0.2.17 ghcr.io/github/github-mcp-server:v0.32.0
+        run: bash "${RUNNER_TEMP}/gh-aw/actions/download_docker_images.sh" ghcr.io/github/gh-aw-firewall/agent:0.25.20 ghcr.io/github/gh-aw-firewall/api-proxy:0.25.20 ghcr.io/github/gh-aw-firewall/squid:0.25.20 ghcr.io/github/gh-aw-mcpg:v0.2.19 ghcr.io/github/github-mcp-server:v0.32.0
       - name: Start MCP Gateway
         id: start-mcp-gateway
         env:
@@ -333,7 +333,7 @@ jobs:
           export DEBUG="*"
           
           export GH_AW_ENGINE="copilot"
-          export MCP_GATEWAY_DOCKER_COMMAND='docker run -i --rm --network host -v /var/run/docker.sock:/var/run/docker.sock -e MCP_GATEWAY_PORT -e MCP_GATEWAY_DOMAIN -e MCP_GATEWAY_API_KEY -e MCP_GATEWAY_PAYLOAD_DIR -e MCP_GATEWAY_PAYLOAD_SIZE_THRESHOLD -e DEBUG -e MCP_GATEWAY_LOG_DIR -e GH_AW_MCP_LOG_DIR -e GH_AW_SAFE_OUTPUTS -e GH_AW_SAFE_OUTPUTS_CONFIG_PATH -e GH_AW_SAFE_OUTPUTS_TOOLS_PATH -e GH_AW_ASSETS_BRANCH -e GH_AW_ASSETS_MAX_SIZE_KB -e GH_AW_ASSETS_ALLOWED_EXTS -e DEFAULT_BRANCH -e GITHUB_MCP_SERVER_TOKEN -e GITHUB_MCP_GUARD_MIN_INTEGRITY -e GITHUB_MCP_GUARD_REPOS -e GITHUB_REPOSITORY -e GITHUB_SERVER_URL -e GITHUB_SHA -e GITHUB_WORKSPACE -e GITHUB_TOKEN -e GITHUB_RUN_ID -e GITHUB_RUN_NUMBER -e GITHUB_RUN_ATTEMPT -e GITHUB_JOB -e GITHUB_ACTION -e GITHUB_EVENT_NAME -e GITHUB_EVENT_PATH -e GITHUB_ACTOR -e GITHUB_ACTOR_ID -e GITHUB_TRIGGERING_ACTOR -e GITHUB_WORKFLOW -e GITHUB_WORKFLOW_REF -e GITHUB_WORKFLOW_SHA -e GITHUB_REF -e GITHUB_REF_NAME -e GITHUB_REF_TYPE -e GITHUB_HEAD_REF -e GITHUB_BASE_REF -v /tmp/gh-aw/mcp-payloads:/tmp/gh-aw/mcp-payloads:rw -v /opt:/opt:ro -v /tmp:/tmp:rw -v '"${GITHUB_WORKSPACE}"':'"${GITHUB_WORKSPACE}"':rw ghcr.io/github/gh-aw-mcpg:v0.2.17'
+          export MCP_GATEWAY_DOCKER_COMMAND='docker run -i --rm --network host -v /var/run/docker.sock:/var/run/docker.sock -e MCP_GATEWAY_PORT -e MCP_GATEWAY_DOMAIN -e MCP_GATEWAY_API_KEY -e MCP_GATEWAY_PAYLOAD_DIR -e MCP_GATEWAY_PAYLOAD_SIZE_THRESHOLD -e DEBUG -e MCP_GATEWAY_LOG_DIR -e GH_AW_MCP_LOG_DIR -e GH_AW_SAFE_OUTPUTS -e GH_AW_SAFE_OUTPUTS_CONFIG_PATH -e GH_AW_SAFE_OUTPUTS_TOOLS_PATH -e GH_AW_ASSETS_BRANCH -e GH_AW_ASSETS_MAX_SIZE_KB -e GH_AW_ASSETS_ALLOWED_EXTS -e DEFAULT_BRANCH -e GITHUB_MCP_SERVER_TOKEN -e GITHUB_MCP_GUARD_MIN_INTEGRITY -e GITHUB_MCP_GUARD_REPOS -e GITHUB_REPOSITORY -e GITHUB_SERVER_URL -e GITHUB_SHA -e GITHUB_WORKSPACE -e GITHUB_TOKEN -e GITHUB_RUN_ID -e GITHUB_RUN_NUMBER -e GITHUB_RUN_ATTEMPT -e GITHUB_JOB -e GITHUB_ACTION -e GITHUB_EVENT_NAME -e GITHUB_EVENT_PATH -e GITHUB_ACTOR -e GITHUB_ACTOR_ID -e GITHUB_TRIGGERING_ACTOR -e GITHUB_WORKFLOW -e GITHUB_WORKFLOW_REF -e GITHUB_WORKFLOW_SHA -e GITHUB_REF -e GITHUB_REF_NAME -e GITHUB_REF_TYPE -e GITHUB_HEAD_REF -e GITHUB_BASE_REF -v /tmp/gh-aw/mcp-payloads:/tmp/gh-aw/mcp-payloads:rw -v /opt:/opt:ro -v /tmp:/tmp:rw -v '"${GITHUB_WORKSPACE}"':'"${GITHUB_WORKSPACE}"':rw ghcr.io/github/gh-aw-mcpg:v0.2.19'
           
           mkdir -p /home/runner/.copilot
           cat << GH_AW_MCP_CONFIG_NORM_EOF | bash "${RUNNER_TEMP}/gh-aw/actions/start_mcp_gateway.sh"
diff --git a/pkg/workflow/tools_validation_test.go b/pkg/workflow/tools_validation_test.go
index 6facbcc962..48db402fe7 100644
--- a/pkg/workflow/tools_validation_test.go
+++ b/pkg/workflow/tools_validation_test.go
@@ -3,8 +3,11 @@
 package workflow
 
 import (
+	"fmt"
 	"testing"
 
+	"github.com/github/gh-aw/pkg/constants"
+	"github.com/github/gh-aw/pkg/semverutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -639,21 +642,26 @@ func TestValidateReposScopeWithStringSlice(t *testing.T) {
 
 // TestMCPGSupportsIntegrityReactions verifies the version gate for integrity-reactions.
 func TestMCPGSupportsIntegrityReactions(t *testing.T) {
+	// Compute expected result for default-version cases dynamically so the test
+	// doesn't break every time DefaultMCPGatewayVersion is bumped.
+	defaultVersion := string(constants.DefaultMCPGatewayVersion)
+	minVersion := string(constants.MCPGIntegrityReactionsMinVersion)
+	defaultSupported := semverutil.Compare(defaultVersion, minVersion) >= 0
+
 	tests := []struct {
 		name          string
 		gatewayConfig *MCPGatewayRuntimeConfig
 		want          bool
 	}{
 		{
-			name:          "nil gateway config uses default (v0.2.17, below min)",
+			name:          fmt.Sprintf("nil gateway config uses default (%s)", defaultVersion),
 			gatewayConfig: nil,
-			// DefaultMCPGatewayVersion = "v0.2.17" < MCPGIntegrityReactionsMinVersion = "v0.2.18"
-			want: false,
+			want:          defaultSupported,
 		},
 		{
-			name:          "empty version uses default (v0.2.17, below min)",
+			name:          fmt.Sprintf("empty version uses default (%s)", defaultVersion),
 			gatewayConfig: &MCPGatewayRuntimeConfig{Container: "ghcr.io/test/mcpg"},
-			want:          false,
+			want:          defaultSupported,
 		},
 		{
 			name: "version exactly at minimum (v0.2.18)",