From c9041770e208d1695b8c1c6cc2e7fb3e3d45947d Mon Sep 17 00:00:00 2001
From: Raphael Manke <raphael.manke@dash0.com>
Date: Sat, 7 Mar 2026 18:22:53 +0100
Subject: [PATCH 1/5] Add cloud.account.id resource attribute to all language
 wrapper scripts

Read the AWS account ID from the symlink written by the collector
extension during registration (/tmp/.otel-aws-account-id, introduced
in #2127) and append it as cloud.account.id to OTEL_RESOURCE_ATTRIBUTES
in the language-specific wrapper scripts.

This ensures the account ID is available as a resource attribute on
telemetry produced by the language SDKs (Node.js, Java, Python, Ruby),
since the wrapper scripts execute after the extension has registered
and created the symlink.
---
 java/layer-javaagent/scripts/otel-handler  |  9 +++++++++
 java/layer-wrapper/scripts/otel-handler    |  9 +++++++++
 nodejs/packages/layer/scripts/otel-handler |  9 +++++++++
 python/src/otel/otel_sdk/otel-instrument   | 10 ++++++++++
 ruby/src/otel/layer/otel-handler           | 10 ++++++++++
 5 files changed, 47 insertions(+)

diff --git a/java/layer-javaagent/scripts/otel-handler b/java/layer-javaagent/scripts/otel-handler
index adb31a263e..968812a5aa 100755
--- a/java/layer-javaagent/scripts/otel-handler
+++ b/java/layer-javaagent/scripts/otel-handler
@@ -8,6 +8,15 @@ if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
+ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [[ -n "$ACCOUNT_ID" ]]; then
+  if [[ $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
+    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
+  fi
+else
+  echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
+fi
+
 if [[ -z "$OTEL_PROPAGATORS" ]]; then
   export OTEL_PROPAGATORS="tracecontext,baggage,xray"
 fi
diff --git a/java/layer-wrapper/scripts/otel-handler b/java/layer-wrapper/scripts/otel-handler
index 0bc9d33dd6..2d42327adf 100755
--- a/java/layer-wrapper/scripts/otel-handler
+++ b/java/layer-wrapper/scripts/otel-handler
@@ -9,6 +9,15 @@ if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
+ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [[ -n "$ACCOUNT_ID" ]]; then
+  if [[ $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
+    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
+  fi
+else
+  echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
+fi
+
 if [[ -z "$OTEL_PROPAGATORS" ]]; then
   export OTEL_PROPAGATORS="tracecontext,baggage,xray"
 fi
diff --git a/nodejs/packages/layer/scripts/otel-handler b/nodejs/packages/layer/scripts/otel-handler
index b3c615e6d3..872d533cce 100755
--- a/nodejs/packages/layer/scripts/otel-handler
+++ b/nodejs/packages/layer/scripts/otel-handler
@@ -12,6 +12,15 @@ if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   fi
 fi
 
+ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [[ -n "$ACCOUNT_ID" ]]; then
+  if [[ $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
+    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
+  fi
+else
+  echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
+fi
+
 if [[ -z "$OTEL_PROPAGATORS" ]]; then
   export OTEL_PROPAGATORS="tracecontext,baggage,xray"
 fi
diff --git a/python/src/otel/otel_sdk/otel-instrument b/python/src/otel/otel_sdk/otel-instrument
index 9d89c96b62..abd5ae7880 100755
--- a/python/src/otel/otel_sdk/otel-instrument
+++ b/python/src/otel/otel_sdk/otel-instrument
@@ -146,6 +146,16 @@ else
     export OTEL_RESOURCE_ATTRIBUTES="$LAMBDA_RESOURCE_ATTRIBUTES,$OTEL_RESOURCE_ATTRIBUTES";
 fi
 
+ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [ -n "$ACCOUNT_ID" ]; then
+  case "$OTEL_RESOURCE_ATTRIBUTES" in
+    *cloud.account.id=*) ;;
+    *) export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}" ;;
+  esac
+else
+  echo "otel-instrument: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
+fi
+
 
 # - Uses the default `OTEL_PROPAGATORS` which is set to `tracecontext,baggage`
 
diff --git a/ruby/src/otel/layer/otel-handler b/ruby/src/otel/layer/otel-handler
index a7994f48ed..cb2f9d3097 100755
--- a/ruby/src/otel/layer/otel-handler
+++ b/ruby/src/otel/layer/otel-handler
@@ -19,4 +19,14 @@ else
     export OTEL_RESOURCE_ATTRIBUTES="$LAMBDA_RESOURCE_ATTRIBUTES,$OTEL_RESOURCE_ATTRIBUTES";
 fi
 
+ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [ -n "$ACCOUNT_ID" ]; then
+  case "$OTEL_RESOURCE_ATTRIBUTES" in
+    *cloud.account.id=*) ;;
+    *) export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}" ;;
+  esac
+else
+  echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
+fi
+
 exec "$@"

From 2b0137925a32a0e536483604c310742bdd19bf15 Mon Sep 17 00:00:00 2001
From: Raphael Manke <raphael.manke@dash0.com>
Date: Sat, 7 Mar 2026 18:26:24 +0100
Subject: [PATCH 2/5] Rename ACCOUNT_ID to CLOUD_ACCOUNT_ID in wrapper scripts

---
 java/layer-javaagent/scripts/otel-handler  | 6 +++---
 java/layer-wrapper/scripts/otel-handler    | 6 +++---
 nodejs/packages/layer/scripts/otel-handler | 6 +++---
 python/src/otel/otel_sdk/otel-instrument   | 6 +++---
 ruby/src/otel/layer/otel-handler           | 6 +++---
 5 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/java/layer-javaagent/scripts/otel-handler b/java/layer-javaagent/scripts/otel-handler
index 968812a5aa..1061a6f822 100755
--- a/java/layer-javaagent/scripts/otel-handler
+++ b/java/layer-javaagent/scripts/otel-handler
@@ -8,10 +8,10 @@ if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
-ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
-if [[ -n "$ACCOUNT_ID" ]]; then
+CLOUD_ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [[ -n "$CLOUD_ACCOUNT_ID" ]]; then
   if [[ $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
-    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
+    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
   fi
 else
   echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
diff --git a/java/layer-wrapper/scripts/otel-handler b/java/layer-wrapper/scripts/otel-handler
index 2d42327adf..43d100c182 100755
--- a/java/layer-wrapper/scripts/otel-handler
+++ b/java/layer-wrapper/scripts/otel-handler
@@ -9,10 +9,10 @@ if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
-ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
-if [[ -n "$ACCOUNT_ID" ]]; then
+CLOUD_ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [[ -n "$CLOUD_ACCOUNT_ID" ]]; then
   if [[ $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
-    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
+    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
   fi
 else
   echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
diff --git a/nodejs/packages/layer/scripts/otel-handler b/nodejs/packages/layer/scripts/otel-handler
index 872d533cce..2e7f033de2 100755
--- a/nodejs/packages/layer/scripts/otel-handler
+++ b/nodejs/packages/layer/scripts/otel-handler
@@ -12,10 +12,10 @@ if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   fi
 fi
 
-ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
-if [[ -n "$ACCOUNT_ID" ]]; then
+CLOUD_ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [[ -n "$CLOUD_ACCOUNT_ID" ]]; then
   if [[ $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
-    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
+    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
   fi
 else
   echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
diff --git a/python/src/otel/otel_sdk/otel-instrument b/python/src/otel/otel_sdk/otel-instrument
index abd5ae7880..e6910b6060 100755
--- a/python/src/otel/otel_sdk/otel-instrument
+++ b/python/src/otel/otel_sdk/otel-instrument
@@ -146,11 +146,11 @@ else
     export OTEL_RESOURCE_ATTRIBUTES="$LAMBDA_RESOURCE_ATTRIBUTES,$OTEL_RESOURCE_ATTRIBUTES";
 fi
 
-ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
-if [ -n "$ACCOUNT_ID" ]; then
+CLOUD_ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [ -n "$CLOUD_ACCOUNT_ID" ]; then
   case "$OTEL_RESOURCE_ATTRIBUTES" in
     *cloud.account.id=*) ;;
-    *) export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}" ;;
+    *) export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}" ;;
   esac
 else
   echo "otel-instrument: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
diff --git a/ruby/src/otel/layer/otel-handler b/ruby/src/otel/layer/otel-handler
index cb2f9d3097..10c544b55d 100755
--- a/ruby/src/otel/layer/otel-handler
+++ b/ruby/src/otel/layer/otel-handler
@@ -19,11 +19,11 @@ else
     export OTEL_RESOURCE_ATTRIBUTES="$LAMBDA_RESOURCE_ATTRIBUTES,$OTEL_RESOURCE_ATTRIBUTES";
 fi
 
-ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
-if [ -n "$ACCOUNT_ID" ]; then
+CLOUD_ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
+if [ -n "$CLOUD_ACCOUNT_ID" ]; then
   case "$OTEL_RESOURCE_ATTRIBUTES" in
     *cloud.account.id=*) ;;
-    *) export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}" ;;
+    *) export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}" ;;
   esac
 else
   echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2

From acd694b83537b858be3954323b004807bec72076 Mon Sep 17 00:00:00 2001
From: Raphael Manke <raphael.manke@dash0.com>
Date: Sat, 7 Mar 2026 19:00:53 +0100
Subject: [PATCH 3/5] Remove error log when symlink is not found

---
 java/layer-javaagent/scripts/otel-handler  | 8 ++------
 java/layer-wrapper/scripts/otel-handler    | 8 ++------
 nodejs/packages/layer/scripts/otel-handler | 8 ++------
 python/src/otel/otel_sdk/otel-instrument   | 2 --
 ruby/src/otel/layer/otel-handler           | 2 --
 5 files changed, 6 insertions(+), 22 deletions(-)

diff --git a/java/layer-javaagent/scripts/otel-handler b/java/layer-javaagent/scripts/otel-handler
index 1061a6f822..08cd69a747 100755
--- a/java/layer-javaagent/scripts/otel-handler
+++ b/java/layer-javaagent/scripts/otel-handler
@@ -9,12 +9,8 @@ if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
 fi
 
 CLOUD_ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
-if [[ -n "$CLOUD_ACCOUNT_ID" ]]; then
-  if [[ $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
-    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
-  fi
-else
-  echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
+if [[ -n "$CLOUD_ACCOUNT_ID" && $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
+  export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
 if [[ -z "$OTEL_PROPAGATORS" ]]; then
diff --git a/java/layer-wrapper/scripts/otel-handler b/java/layer-wrapper/scripts/otel-handler
index 43d100c182..155eaef865 100755
--- a/java/layer-wrapper/scripts/otel-handler
+++ b/java/layer-wrapper/scripts/otel-handler
@@ -10,12 +10,8 @@ if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
 fi
 
 CLOUD_ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
-if [[ -n "$CLOUD_ACCOUNT_ID" ]]; then
-  if [[ $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
-    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
-  fi
-else
-  echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
+if [[ -n "$CLOUD_ACCOUNT_ID" && $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
+  export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
 if [[ -z "$OTEL_PROPAGATORS" ]]; then
diff --git a/nodejs/packages/layer/scripts/otel-handler b/nodejs/packages/layer/scripts/otel-handler
index 2e7f033de2..32e612a1a6 100755
--- a/nodejs/packages/layer/scripts/otel-handler
+++ b/nodejs/packages/layer/scripts/otel-handler
@@ -13,12 +13,8 @@ if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
 fi
 
 CLOUD_ACCOUNT_ID=$(readlink /tmp/.otel-aws-account-id 2>/dev/null || true)
-if [[ -n "$CLOUD_ACCOUNT_ID" ]]; then
-  if [[ $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
-    export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
-  fi
-else
-  echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
+if [[ -n "$CLOUD_ACCOUNT_ID" && $OTEL_RESOURCE_ATTRIBUTES != *"cloud.account.id="* ]]; then
+  export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
 if [[ -z "$OTEL_PROPAGATORS" ]]; then
diff --git a/python/src/otel/otel_sdk/otel-instrument b/python/src/otel/otel_sdk/otel-instrument
index e6910b6060..90df003d30 100755
--- a/python/src/otel/otel_sdk/otel-instrument
+++ b/python/src/otel/otel_sdk/otel-instrument
@@ -152,8 +152,6 @@ if [ -n "$CLOUD_ACCOUNT_ID" ]; then
     *cloud.account.id=*) ;;
     *) export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}" ;;
   esac
-else
-  echo "otel-instrument: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
 fi
 
 
diff --git a/ruby/src/otel/layer/otel-handler b/ruby/src/otel/layer/otel-handler
index 10c544b55d..87ae1811af 100755
--- a/ruby/src/otel/layer/otel-handler
+++ b/ruby/src/otel/layer/otel-handler
@@ -25,8 +25,6 @@ if [ -n "$CLOUD_ACCOUNT_ID" ]; then
     *cloud.account.id=*) ;;
     *) export OTEL_RESOURCE_ATTRIBUTES="cloud.account.id=${CLOUD_ACCOUNT_ID},${OTEL_RESOURCE_ATTRIBUTES}" ;;
   esac
-else
-  echo "otel-handler: ERROR: could not read cloud.account.id from symlink /tmp/.otel-aws-account-id" >&2
 fi
 
 exec "$@"

From 150d8d41d3920d6ea06bddca4440a15799bc47f9 Mon Sep 17 00:00:00 2001
From: Raphael Manke <raphael.manke@dash0.com>
Date: Sat, 7 Mar 2026 19:08:56 +0100
Subject: [PATCH 4/5] Document wrapper script environment variable
 configuration in README

---
 README.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/README.md b/README.md
index 5256248624..440cec3841 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,23 @@ These 2 layers are meant to be used in conjunction to instrument your lambda fun
 
 To get a better understanding of the proposed design for the OpenTelemetry Lambda extension, you can see the [Design Proposal here.](docs/design_proposal.md)
 
+## Wrapper Script Configuration
+
+Each language layer includes a wrapper script (`otel-handler` or `otel-instrument`) that is invoked via `AWS_LAMBDA_EXEC_WRAPPER` before the Lambda runtime starts. These scripts configure the following environment variables:
+
+### `OTEL_PROPAGATORS`
+
+If not already set, the wrapper scripts default `OTEL_PROPAGATORS` to `tracecontext,baggage,xray`.
+
+### `OTEL_RESOURCE_ATTRIBUTES`
+
+The wrapper scripts extend `OTEL_RESOURCE_ATTRIBUTES` with:
+
+- **`service.name`** — set to the Lambda function name (`AWS_LAMBDA_FUNCTION_NAME`) if not already present.
+- **`cloud.account.id`** — the AWS account ID, read from a symlink at `/tmp/.otel-aws-account-id` that is created by the collector extension during registration (see [#2127](https://github.com/open-telemetry/opentelemetry-lambda/pull/2127)). This is added automatically when the collector layer is used alongside a language layer. If the symlink does not exist (e.g., when running without the collector layer), the attribute is silently skipped.
+
+User-provided values in `OTEL_RESOURCE_ATTRIBUTES` are never overwritten.
+
 ## Features
 
 The following is a list of features provided by the OpenTelemetry layers.

From 10accbc0c5cb834096c8fbad70dba23ee4e97d16 Mon Sep 17 00:00:00 2001
From: Raphael Manke <raphael.manke@dash0.com>
Date: Sat, 7 Mar 2026 19:13:28 +0100
Subject: [PATCH 5/5] Remove link from README to fix check-links CI

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 440cec3841..7b384acd8a 100644
--- a/README.md
+++ b/README.md
@@ -66,7 +66,7 @@ If not already set, the wrapper scripts default `OTEL_PROPAGATORS` to `tracecont
 The wrapper scripts extend `OTEL_RESOURCE_ATTRIBUTES` with:
 
 - **`service.name`** — set to the Lambda function name (`AWS_LAMBDA_FUNCTION_NAME`) if not already present.
-- **`cloud.account.id`** — the AWS account ID, read from a symlink at `/tmp/.otel-aws-account-id` that is created by the collector extension during registration (see [#2127](https://github.com/open-telemetry/opentelemetry-lambda/pull/2127)). This is added automatically when the collector layer is used alongside a language layer. If the symlink does not exist (e.g., when running without the collector layer), the attribute is silently skipped.
+- **`cloud.account.id`** — the AWS account ID, read from a symlink at `/tmp/.otel-aws-account-id` that is created by the collector extension during registration. This is added automatically when the collector layer is used alongside a language layer. If the symlink does not exist (e.g., when running without the collector layer), the attribute is silently skipped.
 
 User-provided values in `OTEL_RESOURCE_ATTRIBUTES` are never overwritten.