From f770592834345b0e530bf24e19bad64988973152 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 20 May 2026 02:11:31 +0000
Subject: [PATCH 1/3] Initial plan


From 007461a4155227b47ea4feaff9039a9e0a286328 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 20 May 2026 02:18:09 +0000
Subject: [PATCH 2/3] Plan model inventory update

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
---
 .github/workflows/mcp-inspector.lock.yml       | 2 +-
 .github/workflows/smoke-otel-backends.lock.yml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/mcp-inspector.lock.yml b/.github/workflows/mcp-inspector.lock.yml
index 4eef8f439b3..2c996184978 100644
--- a/.github/workflows/mcp-inspector.lock.yml
+++ b/.github/workflows/mcp-inspector.lock.yml
@@ -1000,7 +1000,7 @@ jobs:
                 "url": "https://mcp.datadoghq.com/api/unstable/mcp-server/mcp?toolsets=core",
                 "headers": {
                   "DD_API_KEY": "\${DD_API_KEY}",
-                  "DD_APPLICATION_KEY": "\${DD_APP_KEY}",
+                  "DD_APPLICATION_KEY": "\${DD_APPLICATION_KEY}",
                   "DD_SITE": "\${DD_SITE}"
                 },
                 "tools": [
diff --git a/.github/workflows/smoke-otel-backends.lock.yml b/.github/workflows/smoke-otel-backends.lock.yml
index 092ac357201..6f51faa9a84 100644
--- a/.github/workflows/smoke-otel-backends.lock.yml
+++ b/.github/workflows/smoke-otel-backends.lock.yml
@@ -773,7 +773,7 @@ jobs:
                 "url": "https://mcp.datadoghq.com/api/unstable/mcp-server/mcp?toolsets=core",
                 "headers": {
                   "DD_API_KEY": "\${DD_API_KEY}",
-                  "DD_APPLICATION_KEY": "\${DD_APP_KEY}",
+                  "DD_APPLICATION_KEY": "\${DD_APPLICATION_KEY}",
                   "DD_SITE": "\${DD_SITE}"
                 },
                 "tools": [

From 085ed31a27d4b3c8fdf8499daa02ba7e7c3bf37b Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 20 May 2026 02:25:44 +0000
Subject: [PATCH 3/3] Add gemini-3.5-flash ET multiplier

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
---
 actions/setup/js/model_multipliers.json | 1 +
 pkg/cli/data/model_multipliers.json     | 1 +
 pkg/cli/effective_tokens_test.go        | 8 ++++++++
 3 files changed, 10 insertions(+)

diff --git a/actions/setup/js/model_multipliers.json b/actions/setup/js/model_multipliers.json
index be51d11a918..934da8d0e97 100644
--- a/actions/setup/js/model_multipliers.json
+++ b/actions/setup/js/model_multipliers.json
@@ -131,6 +131,7 @@
     "gemini-3.1-flash-lite-preview": 0.1,
     "gemini-3.1-flash-image-preview": 0.33,
     "gemini-3.1-flash-tts-preview": 0.1,
+    "gemini-3.5-flash": 14.0,
     "gemini-2.5-computer-use-preview": 0.2,
     "gemini-2.5-computer-use-preview-10-2025": 0.2,
     "gemini-robotics-er-1.5-preview": 0.2,
diff --git a/pkg/cli/data/model_multipliers.json b/pkg/cli/data/model_multipliers.json
index be51d11a918..934da8d0e97 100644
--- a/pkg/cli/data/model_multipliers.json
+++ b/pkg/cli/data/model_multipliers.json
@@ -131,6 +131,7 @@
     "gemini-3.1-flash-lite-preview": 0.1,
     "gemini-3.1-flash-image-preview": 0.33,
     "gemini-3.1-flash-tts-preview": 0.1,
+    "gemini-3.5-flash": 14.0,
     "gemini-2.5-computer-use-preview": 0.2,
     "gemini-2.5-computer-use-preview-10-2025": 0.2,
     "gemini-robotics-er-1.5-preview": 0.2,
diff --git a/pkg/cli/effective_tokens_test.go b/pkg/cli/effective_tokens_test.go
index 6ce89bcbb2b..fa7b440f9c4 100644
--- a/pkg/cli/effective_tokens_test.go
+++ b/pkg/cli/effective_tokens_test.go
@@ -109,6 +109,14 @@ func TestModelMultipliersInventoryUpdate20260519(t *testing.T) {
 	assert.InDelta(t, 1.0, loadedMultipliers["gpt-5-chat-latest"], 1e-9, "gpt-5-chat-latest should be present")
 }
 
+func TestModelMultipliersInventoryUpdate20260520(t *testing.T) {
+	loadedMultipliers = nil
+	initMultipliers()
+
+	require.NotNil(t, loadedMultipliers, "multipliers should be loaded from embedded JSON")
+	assert.InDelta(t, 14.0, loadedMultipliers["gemini-3.5-flash"], 1e-9, "gemini-3.5-flash should use the documented premium multiplier")
+}
+
 func TestPopulateEffectiveTokensWithCustomWeights(t *testing.T) {
 	loadedMultipliers = nil