diff --git a/.changeset/patch-enable-append-only-comments-smoke-copilot.md b/.changeset/patch-enable-append-only-comments-smoke-copilot.md
new file mode 100644
index 0000000000..f2c79b123d
--- /dev/null
+++ b/.changeset/patch-enable-append-only-comments-smoke-copilot.md
@@ -0,0 +1,12 @@
+---
+"gh-aw": patch
+---
+
+Enable append-only comments for the `smoke-copilot` workflow.
+
+The workflow now posts new status comments for each run instead of editing
+the original activation comment. This adds `append-only-comments: true`
+to the messages configuration so timeline updates create discrete comments.
+
+Files changed: schema and `.github/workflows/smoke-copilot.md` (compiled lock updated).
+
diff --git a/.github/workflows/smoke-copilot.lock.yml b/.github/workflows/smoke-copilot.lock.yml
index 9ec82db67d..8e3bff4376 100644
--- a/.github/workflows/smoke-copilot.lock.yml
+++ b/.github/workflows/smoke-copilot.lock.yml
@@ -87,7 +87,7 @@ jobs:
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         env:
           GH_AW_WORKFLOW_NAME: "Smoke Copilot"
-          GH_AW_SAFE_OUTPUT_MESSAGES: "{\"footer\":\"\\u003e 📰 *BREAKING: Report filed by [{workflow_name}]({run_url})*\",\"runStarted\":\"📰 BREAKING: [{workflow_name}]({run_url}) is now investigating this {event_type}. Sources say the story is developing...\",\"runSuccess\":\"📰 VERDICT: [{workflow_name}]({run_url}) has concluded. All systems operational. This is a developing story. 🎤\",\"runFailure\":\"📰 DEVELOPING STORY: [{workflow_name}]({run_url}) reports {status}. Our correspondents are investigating the incident...\"}"
+          GH_AW_SAFE_OUTPUT_MESSAGES: "{\"footer\":\"\\u003e 📰 *BREAKING: Report filed by [{workflow_name}]({run_url})*\",\"appendOnlyComments\":true,\"runStarted\":\"📰 BREAKING: [{workflow_name}]({run_url}) is now investigating this {event_type}. Sources say the story is developing...\",\"runSuccess\":\"📰 VERDICT: [{workflow_name}]({run_url}) has concluded. All systems operational. This is a developing story. 🎤\",\"runFailure\":\"📰 DEVELOPING STORY: [{workflow_name}]({run_url}) reports {status}. Our correspondents are investigating the incident...\"}"
         with:
           script: |
             const { setupGlobals } = require('/opt/gh-aw/actions/setup_globals.cjs');
@@ -1141,7 +1141,7 @@ jobs:
           GH_AW_RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
           GH_AW_AGENT_CONCLUSION: ${{ needs.agent.result }}
           GH_AW_SECRET_VERIFICATION_RESULT: ${{ needs.agent.outputs.secret_verification_result }}
-          GH_AW_SAFE_OUTPUT_MESSAGES: "{\"footer\":\"\\u003e 📰 *BREAKING: Report filed by [{workflow_name}]({run_url})*\",\"runStarted\":\"📰 BREAKING: [{workflow_name}]({run_url}) is now investigating this {event_type}. Sources say the story is developing...\",\"runSuccess\":\"📰 VERDICT: [{workflow_name}]({run_url}) has concluded. All systems operational. This is a developing story. 🎤\",\"runFailure\":\"📰 DEVELOPING STORY: [{workflow_name}]({run_url}) reports {status}. Our correspondents are investigating the incident...\"}"
+          GH_AW_SAFE_OUTPUT_MESSAGES: "{\"footer\":\"\\u003e 📰 *BREAKING: Report filed by [{workflow_name}]({run_url})*\",\"appendOnlyComments\":true,\"runStarted\":\"📰 BREAKING: [{workflow_name}]({run_url}) is now investigating this {event_type}. Sources say the story is developing...\",\"runSuccess\":\"📰 VERDICT: [{workflow_name}]({run_url}) has concluded. All systems operational. This is a developing story. 🎤\",\"runFailure\":\"📰 DEVELOPING STORY: [{workflow_name}]({run_url}) reports {status}. Our correspondents are investigating the incident...\"}"
         with:
           github-token: ${{ secrets.GH_AW_GITHUB_TOKEN || secrets.GITHUB_TOKEN }}
           script: |
@@ -1160,7 +1160,7 @@ jobs:
           GH_AW_WORKFLOW_NAME: "Smoke Copilot"
           GH_AW_AGENT_CONCLUSION: ${{ needs.agent.result }}
           GH_AW_DETECTION_CONCLUSION: ${{ needs.detection.result }}
-          GH_AW_SAFE_OUTPUT_MESSAGES: "{\"footer\":\"\\u003e 📰 *BREAKING: Report filed by [{workflow_name}]({run_url})*\",\"runStarted\":\"📰 BREAKING: [{workflow_name}]({run_url}) is now investigating this {event_type}. Sources say the story is developing...\",\"runSuccess\":\"📰 VERDICT: [{workflow_name}]({run_url}) has concluded. All systems operational. This is a developing story. 🎤\",\"runFailure\":\"📰 DEVELOPING STORY: [{workflow_name}]({run_url}) reports {status}. Our correspondents are investigating the incident...\"}"
+          GH_AW_SAFE_OUTPUT_MESSAGES: "{\"footer\":\"\\u003e 📰 *BREAKING: Report filed by [{workflow_name}]({run_url})*\",\"appendOnlyComments\":true,\"runStarted\":\"📰 BREAKING: [{workflow_name}]({run_url}) is now investigating this {event_type}. Sources say the story is developing...\",\"runSuccess\":\"📰 VERDICT: [{workflow_name}]({run_url}) has concluded. All systems operational. This is a developing story. 🎤\",\"runFailure\":\"📰 DEVELOPING STORY: [{workflow_name}]({run_url}) reports {status}. Our correspondents are investigating the incident...\"}"
         with:
           github-token: ${{ secrets.GH_AW_GITHUB_TOKEN || secrets.GITHUB_TOKEN }}
           script: |
@@ -1390,7 +1390,7 @@ jobs:
     timeout-minutes: 15
     env:
       GH_AW_ENGINE_ID: "copilot"
-      GH_AW_SAFE_OUTPUT_MESSAGES: "{\"footer\":\"\\u003e 📰 *BREAKING: Report filed by [{workflow_name}]({run_url})*\",\"runStarted\":\"📰 BREAKING: [{workflow_name}]({run_url}) is now investigating this {event_type}. Sources say the story is developing...\",\"runSuccess\":\"📰 VERDICT: [{workflow_name}]({run_url}) has concluded. All systems operational. This is a developing story. 🎤\",\"runFailure\":\"📰 DEVELOPING STORY: [{workflow_name}]({run_url}) reports {status}. Our correspondents are investigating the incident...\"}"
+      GH_AW_SAFE_OUTPUT_MESSAGES: "{\"footer\":\"\\u003e 📰 *BREAKING: Report filed by [{workflow_name}]({run_url})*\",\"appendOnlyComments\":true,\"runStarted\":\"📰 BREAKING: [{workflow_name}]({run_url}) is now investigating this {event_type}. Sources say the story is developing...\",\"runSuccess\":\"📰 VERDICT: [{workflow_name}]({run_url}) has concluded. All systems operational. This is a developing story. 🎤\",\"runFailure\":\"📰 DEVELOPING STORY: [{workflow_name}]({run_url}) reports {status}. Our correspondents are investigating the incident...\"}"
       GH_AW_WORKFLOW_ID: "smoke-copilot"
       GH_AW_WORKFLOW_NAME: "Smoke Copilot"
     outputs:
diff --git a/.github/workflows/smoke-copilot.md b/.github/workflows/smoke-copilot.md
index dd740cfa15..3eb153ca5e 100644
--- a/.github/workflows/smoke-copilot.md
+++ b/.github/workflows/smoke-copilot.md
@@ -54,6 +54,7 @@ safe-outputs:
     remove-labels:
       allowed: [smoke]
     messages:
+      append-only-comments: true
       footer: "> 📰 *BREAKING: Report filed by [{workflow_name}]({run_url})*"
       run-started: "📰 BREAKING: [{workflow_name}]({run_url}) is now investigating this {event_type}. Sources say the story is developing..."
       run-success: "📰 VERDICT: [{workflow_name}]({run_url}) has concluded. All systems operational. This is a developing story. 🎤"
diff --git a/pkg/parser/schemas/main_workflow_schema.json b/pkg/parser/schemas/main_workflow_schema.json
index 8a61abc49a..23c1ea3212 100644
--- a/pkg/parser/schemas/main_workflow_schema.json
+++ b/pkg/parser/schemas/main_workflow_schema.json
@@ -5669,6 +5669,11 @@
               "type": "string",
               "description": "Custom message template for detection job failure. Available placeholders: {workflow_name}, {run_url}. Default: '⚠️ Security scanning failed for [{workflow_name}]({run_url}). Review the logs for details.'",
               "examples": ["⚠️ Security scanning failed for [{workflow_name}]({run_url}). Review the logs for details.", "⚠️ Detection job failed in [{workflow_name}]({run_url})."]
+            },
+            "append-only-comments": {
+              "type": "boolean",
+              "description": "When enabled, workflow completion notifier creates a new comment instead of editing the activation comment. Creates an append-only timeline of workflow runs. Default: false",
+              "default": false
             }
           },
           "additionalProperties": false