diff --git a/.github/workflows/gemini-cli.yml b/.github/workflows/gemini-cli.yml
index 23179d0f2..4d37e31ed 100644
--- a/.github/workflows/gemini-cli.yml
+++ b/.github/workflows/gemini-cli.yml
@@ -57,6 +57,8 @@ jobs:
       )
     timeout-minutes: 10
     runs-on: 'ubuntu-latest'
+    env:
+      ACTIONS_STEP_DEBUG: true # Default to debug logging
 
     steps:
       - name: 'Generate GitHub App Token'
@@ -203,8 +205,10 @@ jobs:
           gcp_service_account: '${{ vars.SERVICE_ACCOUNT_EMAIL }}'
           use_vertex_ai: '${{ vars.GOOGLE_GENAI_USE_VERTEXAI }}'
           use_gemini_code_assist: '${{ vars.GOOGLE_GENAI_USE_GCA }}'
+          # Default to debug logging. Disable debug logging by removing '"debug": true,'
           settings: |-
             {
+              "debug": true,
               "maxSessionTurns": 50,
               "telemetry": {
                 "enabled": true,
diff --git a/.github/workflows/gemini-issue-automated-triage.yml b/.github/workflows/gemini-issue-automated-triage.yml
index 4652f53f0..1e93a03e9 100644
--- a/.github/workflows/gemini-issue-automated-triage.yml
+++ b/.github/workflows/gemini-issue-automated-triage.yml
@@ -41,6 +41,8 @@ jobs:
       )
     timeout-minutes: 5
     runs-on: 'ubuntu-latest'
+    env:
+      ACTIONS_STEP_DEBUG: true # Default to debug logging
 
     steps:
       - name: 'Checkout repository'
@@ -73,8 +75,10 @@ jobs:
           gemini_api_key: '${{ secrets.GEMINI_API_KEY }}'
           use_vertex_ai: '${{ vars.GOOGLE_GENAI_USE_VERTEXAI }}'
           use_gemini_code_assist: '${{ vars.GOOGLE_GENAI_USE_GCA }}'
+          # Default to debug logging. Disable debug logging by removing '"debug": true,'
           settings: |-
             {
+              "debug": true,
               "maxSessionTurns": 25,
               "coreTools": [
                 "run_shell_command(echo)",
diff --git a/.github/workflows/gemini-issue-scheduled-triage.yml b/.github/workflows/gemini-issue-scheduled-triage.yml
index 5cb44ffd3..15d5c1b2e 100644
--- a/.github/workflows/gemini-issue-scheduled-triage.yml
+++ b/.github/workflows/gemini-issue-scheduled-triage.yml
@@ -23,6 +23,8 @@ jobs:
   triage-issues:
     timeout-minutes: 5
     runs-on: 'ubuntu-latest'
+    env:
+      ACTIONS_STEP_DEBUG: true # Default to debug logging
 
     steps:
       - name: 'Checkout repository'
@@ -81,8 +83,10 @@ jobs:
           gemini_api_key: '${{ secrets.GEMINI_API_KEY }}'
           use_vertex_ai: '${{ vars.GOOGLE_GENAI_USE_VERTEXAI }}'
           use_gemini_code_assist: '${{ vars.GOOGLE_GENAI_USE_GCA }}'
+          # Default to debug logging. Disable debug logging by removing '"debug": true,'
           settings: |-
             {
+              "debug": true,
               "maxSessionTurns": 25,
               "coreTools": [
                 "run_shell_command(echo)",
diff --git a/.github/workflows/gemini-pr-review.yml b/.github/workflows/gemini-pr-review.yml
index 30555f042..ea0c09e25 100644
--- a/.github/workflows/gemini-pr-review.yml
+++ b/.github/workflows/gemini-pr-review.yml
@@ -62,6 +62,8 @@ jobs:
       )
     timeout-minutes: 5
     runs-on: 'ubuntu-latest'
+    env:
+      ACTIONS_STEP_DEBUG: true # Default to debug logging
 
     steps:
       - name: 'Checkout PR code'
@@ -159,8 +161,10 @@ jobs:
           gemini_api_key: '${{ secrets.GEMINI_API_KEY }}'
           use_vertex_ai: '${{ vars.GOOGLE_GENAI_USE_VERTEXAI }}'
           use_gemini_code_assist: '${{ vars.GOOGLE_GENAI_USE_GCA }}'
+          # Default to debug logging. Disable debug logging by removing '"debug": true,'
           settings: |-
             {
+              "debug": true,
               "maxSessionTurns": 20,
               "mcpServers": {
                 "github": {
diff --git a/examples/workflows/gemini-cli/gemini-cli.yml b/examples/workflows/gemini-cli/gemini-cli.yml
index 3fbaedc70..18e2ca735 100644
--- a/examples/workflows/gemini-cli/gemini-cli.yml
+++ b/examples/workflows/gemini-cli/gemini-cli.yml
@@ -57,6 +57,8 @@ jobs:
       )
     timeout-minutes: 10
     runs-on: 'ubuntu-latest'
+    env:
+      ACTIONS_STEP_DEBUG: true # Default to debug logging
 
     steps:
       - name: 'Generate GitHub App Token'
@@ -203,8 +205,10 @@ jobs:
           gcp_service_account: '${{ vars.SERVICE_ACCOUNT_EMAIL }}'
           use_vertex_ai: '${{ vars.GOOGLE_GENAI_USE_VERTEXAI }}'
           use_gemini_code_assist: '${{ vars.GOOGLE_GENAI_USE_GCA }}'
+          # Default to debug logging. Disable debug logging by removing '"debug": true,'
           settings: |-
             {
+              "debug": true,
               "maxSessionTurns": 50,
               "telemetry": {
                 "enabled": false,
diff --git a/examples/workflows/issue-triage/gemini-issue-automated-triage.yml b/examples/workflows/issue-triage/gemini-issue-automated-triage.yml
index 141df3fc6..f0d8cabaf 100644
--- a/examples/workflows/issue-triage/gemini-issue-automated-triage.yml
+++ b/examples/workflows/issue-triage/gemini-issue-automated-triage.yml
@@ -41,6 +41,8 @@ jobs:
       )
     timeout-minutes: 5
     runs-on: 'ubuntu-latest'
+    env:
+      ACTIONS_STEP_DEBUG: true # Default to debug logging
 
     steps:
       - name: 'Checkout repository'
@@ -73,8 +75,10 @@ jobs:
           gemini_api_key: '${{ secrets.GEMINI_API_KEY }}'
           use_vertex_ai: '${{ vars.GOOGLE_GENAI_USE_VERTEXAI }}'
           use_gemini_code_assist: '${{ vars.GOOGLE_GENAI_USE_GCA }}'
+          # Default to debug logging. Disable debug logging by removing '"debug": true,'
           settings: |-
             {
+              "debug": true,
               "maxSessionTurns": 25,
               "coreTools": [
                 "run_shell_command(echo)",
diff --git a/examples/workflows/issue-triage/gemini-issue-scheduled-triage.yml b/examples/workflows/issue-triage/gemini-issue-scheduled-triage.yml
index f44205973..88da14dbb 100644
--- a/examples/workflows/issue-triage/gemini-issue-scheduled-triage.yml
+++ b/examples/workflows/issue-triage/gemini-issue-scheduled-triage.yml
@@ -23,6 +23,8 @@ jobs:
   triage-issues:
     timeout-minutes: 5
     runs-on: 'ubuntu-latest'
+    env:
+      ACTIONS_STEP_DEBUG: true # Default to debug logging
 
     steps:
       - name: 'Checkout repository'
@@ -81,8 +83,10 @@ jobs:
           gemini_api_key: '${{ secrets.GEMINI_API_KEY }}'
           use_vertex_ai: '${{ vars.GOOGLE_GENAI_USE_VERTEXAI }}'
           use_gemini_code_assist: '${{ vars.GOOGLE_GENAI_USE_GCA }}'
+          # Default to debug logging. Disable debug logging by removing '"debug": true,'
           settings: |-
             {
+              "debug": true,
               "maxSessionTurns": 25,
               "coreTools": [
                 "run_shell_command(echo)",
diff --git a/examples/workflows/pr-review/gemini-pr-review.yml b/examples/workflows/pr-review/gemini-pr-review.yml
index b05b2f3fb..f79e22a28 100644
--- a/examples/workflows/pr-review/gemini-pr-review.yml
+++ b/examples/workflows/pr-review/gemini-pr-review.yml
@@ -62,6 +62,8 @@ jobs:
       )
     timeout-minutes: 5
     runs-on: 'ubuntu-latest'
+    env:
+      ACTIONS_STEP_DEBUG: true # Default to debug logging
 
     steps:
       - name: 'Checkout PR code'
@@ -159,8 +161,10 @@ jobs:
           gemini_api_key: '${{ secrets.GEMINI_API_KEY }}'
           use_vertex_ai: '${{ vars.GOOGLE_GENAI_USE_VERTEXAI }}'
           use_gemini_code_assist: '${{ vars.GOOGLE_GENAI_USE_GCA }}'
+          # Default to debug logging. Disable debug logging by removing '"debug": true,'
           settings: |-
             {
+              "debug": true,
               "maxSessionTurns": 20,
               "mcpServers": {
                 "github": {