diff --git a/hive-c0re/Cargo.toml b/hive-c0re/Cargo.toml
index 54e97769..9476a73d 100644
--- a/hive-c0re/Cargo.toml
+++ b/hive-c0re/Cargo.toml
@@ -20,12 +20,15 @@ clap.workspace = true
 clap_complete.workspace = true
 clap-markdown = "0.1"
 # OTEL SDK for the per-agent container-resource metrics exporter
-# (stats/otel_metrics.rs). Same versions/features as hive-metric — the
-# blocking OTLP client is deliberate: the metrics SDK's PeriodicReader runs
-# on a background thread with no Tokio reactor, where the async client panics.
+# (stats/otel_metrics.rs). Same versions as hive-metric — the blocking OTLP
+# client is deliberate: the metrics SDK's PeriodicReader runs on a background
+# thread with no Tokio reactor, where the async client panics.
 opentelemetry = "0.32"
 opentelemetry_sdk = { version = "0.32", features = ["metrics"] }
 opentelemetry-otlp = { version = "0.32", default-features = false, features = [
+  # Not a transport: it is in `default`, so `default-features = false` drops the
+  # exporter's own diagnostics unless it is named here.
+  "internal-logs",
   "metrics",
   "http-json",
   "reqwest-blocking-client",
diff --git a/hive-metric/Cargo.toml b/hive-metric/Cargo.toml
index 741d3419..e066970c 100644
--- a/hive-metric/Cargo.toml
+++ b/hive-metric/Cargo.toml
@@ -19,6 +19,8 @@ opentelemetry_sdk = { version = "0.32", features = ["metrics"] }
 # so the async client panics there with "no reactor running". The blocking
 # client sends on that thread directly — and for a fire-and-forget CLI that
 # records one point then `shutdown()`s, a synchronous send is exactly right.
+# No `internal-logs` here, unlike hive-c0re: this binary installs no tracing
+# subscriber, so the SDK's diagnostics would have nowhere to go.
 opentelemetry-otlp = { version = "0.32", default-features = false, features = [
   "metrics",
   "http-json",