drop the remaining HYPERHIVE_OTEL_METRIC_INTERVAL_MS readers

Nothing sets the variable once otel.metricIntervalMs is gone, so the
turn-metrics, jobq-metrics and vcs-metrics exporters export at a fixed
60s, as hive-c0re's container-resource exporter already does. The
observability doc and the removal warning now say so.

docs/scheduler/observability.md

@@ -409,8 +409,8 @@ window used by agent** panel (health tab) divides one by the other.
 Resource attributes (`service.name`, `agent`, `swarm`) come from the
 same container-wide `OTEL_RESOURCE_ATTRIBUTES` as everything else in this
 section, and the swarm's collector adds `hive` — nothing extra to configure.
-Cadence follows `HYPERHIVE_OTEL_METRIC_INTERVAL_MS` (default 60s, the same
+The export cadence is a fixed 60s, the same
-cadence as `hive-c0re`'s container-resource export above). That only controls how often
+as `hive-c0re`'s container-resource export above. That only controls how often
 the harness flushes the batched points to the collector, not how often it
 records them (every turn, always).
 
@@ -486,8 +486,8 @@ store either a commit or a push anywhere as a row to count.
 
 A push with zero commits (a branch delete, or a force-push that doesn't add
 new commits) still increments `push.count`; `commit.count` only advances
-when the delivery actually carries commits. Same enable signal (`OTEL_EXPORTER_OTLP_ENDPOINT`), cadence variable
+when the delivery actually carries commits. Same enable signal (`OTEL_EXPORTER_OTLP_ENDPOINT`), fixed 60s cadence
-(`HYPERHIVE_OTEL_METRIC_INTERVAL_MS`) and `HYPERHIVE_OTEL_EXTRA_RESOURCE_ATTRIBUTES`
+and `HYPERHIVE_OTEL_EXTRA_RESOURCE_ATTRIBUTES`
 resource-attribute channel as `swarm-controller`'s other OTEL exporter (its
 `hive-jobq-metrics`-backed job-graph rollup, undocumented here — see that
 crate's own doc comment) — `swarm-controller` sets `service.name =

hive-agent/src/otel_turn_metrics.rs

@@ -39,10 +39,9 @@ use opentelemetry_sdk::metrics::{PeriodicReader, SdkMeterProvider};
 
 use crate::turn_stats::TurnStatRow;
 
-/// Default export cadence when `HYPERHIVE_OTEL_METRIC_INTERVAL_MS` is unset.
+/// Export cadence. Matches `hive-c0re`'s container-metrics exporter so the
-/// Matches `hive-c0re`'s container-metrics default so the two exporters
+/// two batch on the same rhythm.
-/// batch on the same rhythm by default.
+const EXPORT_INTERVAL: Duration = Duration::from_mins(1);
-const DEFAULT_INTERVAL: Duration = Duration::from_mins(1);
 
 struct Instruments {
     /// Kept alive for the process lifetime — the `PeriodicReader` only
@@ -177,7 +176,7 @@ fn build() -> Option<Instruments> {
         tracing::debug!("otel turn-metrics: no endpoint configured, exporter disabled");
         return None;
     }
-    let interval = interval();
+    let interval = EXPORT_INTERVAL;
     match build_provider(interval) {
         Ok(provider) => {
             tracing::info!(?interval, "otel turn-metrics: exporter enabled");
@@ -254,12 +253,3 @@ fn build_provider(interval: Duration) -> anyhow::Result<SdkMeterProvider> {
 pub fn enabled() -> bool {
     std::env::var("OTEL_EXPORTER_OTLP_ENDPOINT").is_ok_and(|s| !s.trim().is_empty())
 }
-
-/// Export cadence from `HYPERHIVE_OTEL_METRIC_INTERVAL_MS`, else the default.
-fn interval() -> Duration {
-    std::env::var("HYPERHIVE_OTEL_METRIC_INTERVAL_MS")
-        .ok()
-        .and_then(|s| s.trim().parse::<u64>().ok())
-        .filter(|ms| *ms > 0)
-        .map_or(DEFAULT_INTERVAL, Duration::from_millis)
-}

hive-jobq-metrics/src/lib.rs

@@ -55,11 +55,10 @@ impl HttpClient for BoxedHttpClient {
     }
 }
 
-/// Default export cadence when `HYPERHIVE_OTEL_METRIC_INTERVAL_MS` is unset.
+/// Export cadence, and the snapshot refresher's. Matches
-/// Matches `hive-c0re::stats::otel_metrics`'s default — no reason for the
+/// `hive-c0re::stats::otel_metrics` — no reason for the exporters across
-/// exporters across this tree to disagree on how fresh "current" means by
+/// this tree to disagree on how fresh "current" means.
-/// default.
+const EXPORT_INTERVAL: Duration = Duration::from_mins(1);
-const DEFAULT_INTERVAL: Duration = Duration::from_mins(1);
 
 /// Spawn a jobq-rollup OTEL exporter for `jobq` if OTEL is configured
 /// (`OTEL_EXPORTER_OTLP_ENDPOINT` non-empty) — `None` otherwise, same
@@ -97,7 +96,7 @@ where
 {
     let endpoint = endpoint()?;
     let snapshot: Arc<Mutex<Vec<StateCount>>> = Arc::new(Mutex::new(Vec::new()));
-    let interval = interval();
+    let interval = EXPORT_INTERVAL;
 
     let refresh = snapshot.clone();
     tokio::spawn(async move {
@@ -225,18 +224,6 @@ fn endpoint() -> Option<String> {
         .filter(|s| !s.is_empty())
 }
 
-/// Export cadence from `HYPERHIVE_OTEL_METRIC_INTERVAL_MS`, else the
-/// default. Same variable `hive-c0re::stats::otel_metrics` reads — one
-/// cadence knob for every OTEL exporter in the tree, not a new one per
-/// module.
-fn interval() -> Duration {
-    std::env::var("HYPERHIVE_OTEL_METRIC_INTERVAL_MS")
-        .ok()
-        .and_then(|s| s.trim().parse::<u64>().ok())
-        .filter(|ms| *ms > 0)
-        .map_or(DEFAULT_INTERVAL, Duration::from_millis)
-}
-
 /// Extra resource attributes from `HYPERHIVE_OTEL_EXTRA_RESOURCE_ATTRIBUTES`
 /// (`key=value,key=value`), same env `hive-c0re::stats::otel_metrics` reads.
 fn resource_attributes() -> Vec<(String, String)> {

nix/host-modules/hive-options-removed.nix

@@ -6,8 +6,9 @@
 # (hive-agent/prompts/system.md) names the operator's pronouns itself, the
 # harness (hive-agent/src/harness_state.rs) holds the per-model context
 # windows it uses until a turn reports the model's own, every OTEL exporter
-# on the hive runs at its SDK's default cadence, and an agent's own config
+# exports every 60 seconds (claude at its SDK default, the rest by a fixed
-# sets `services.hyperhive.agent.otel.debug`.
+# constant), and an agent's own config sets
+# `services.hyperhive.agent.otel.debug`.
 #
 # Self-contained and deletable, like ./swarm-peers-removed.nix: one file to
 # remove when the deprecation window closes.
@@ -52,8 +53,8 @@ in
       1000000, opus 1000000 tokens).
     ''
     ++ removed "otel.metricIntervalMs" cfg.otel.metricIntervalMs ''
-      claude in every agent and hive-c0re's container-resource exporter both
+      claude exports at its SDK default of 60 seconds, and every hyperhive
-      export metrics at the SDK default of 60 seconds.
+      exporter at a fixed 60 seconds.
     ''
     ++ removed "otel.debug" cfg.otel.debug ''
       to see one agent's OTEL SDK diagnostics, set

swarm-controller/src/vcs_metrics.rs

@@ -13,7 +13,7 @@
 //! exporter): blocking OTLP client on the `PeriodicReader`'s own background
 //! thread, `service.name` + `HYPERHIVE_OTEL_EXTRA_RESOURCE_ATTRIBUTES` for
 //! the resource, `OTEL_EXPORTER_OTLP_ENDPOINT` as the sole enable signal,
-//! `HYPERHIVE_OTEL_METRIC_INTERVAL_MS` for cadence. Recording is
+//! a fixed 60 s export cadence. Recording is
 //! synchronous (`counter.add`, called at the event site) rather than
 //! observable/polled — see `hive-agent::otel_turn_metrics`'s doc comment
 //! for why an occurrence, unlike a live gauge, has nothing to poll between
@@ -29,9 +29,8 @@ use opentelemetry_otlp::{MetricExporter, Protocol, WithExportConfig, WithHttpCon
 use opentelemetry_sdk::Resource;
 use opentelemetry_sdk::metrics::{PeriodicReader, SdkMeterProvider};
 
-/// Default export cadence when `HYPERHIVE_OTEL_METRIC_INTERVAL_MS` is
+/// Export cadence. Matches every other OTEL exporter in this tree.
-/// unset. Matches every other OTEL exporter in this tree.
+const EXPORT_INTERVAL: Duration = Duration::from_mins(1);
-const DEFAULT_INTERVAL: Duration = Duration::from_mins(1);
 
 /// One push delivery, as parsed off the webhook body — just the two fields
 /// this module needs, not a full mirror of Forgejo's push-event schema.
@@ -86,7 +85,7 @@ pub(super) fn record_push(activity: &PushActivity) {
 
 fn build() -> Option<Instruments> {
     let endpoint = endpoint()?;
-    let interval = interval();
+    let interval = EXPORT_INTERVAL;
     match build_provider(interval) {
         Ok(provider) => {
             tracing::info!(%endpoint, ?interval, "otel vcs-metrics: exporter enabled");
@@ -198,14 +197,6 @@ fn endpoint() -> Option<String> {
         .filter(|s| !s.is_empty())
 }
 
-fn interval() -> Duration {
-    std::env::var("HYPERHIVE_OTEL_METRIC_INTERVAL_MS")
-        .ok()
-        .and_then(|s| s.trim().parse::<u64>().ok())
-        .filter(|ms| *ms > 0)
-        .map_or(DEFAULT_INTERVAL, Duration::from_millis)
-}
-
 fn resource_attributes() -> Vec<(String, String)> {
     std::env::var("HYPERHIVE_OTEL_EXTRA_RESOURCE_ATTRIBUTES")
         .ok()