hyperhive: make the values the meta-flake render reads swarm-wide

Five host options whose values hive-c0re renders into every agent's
build move under services.hyperhive.swarm, so the swarm states each of
them once instead of every hive carrying its own copy:

  c0re.dashboardPort          -> swarm.dashboardPort
  c0re.claudeCodePackage      -> swarm.claudeCodePackage
  github.enable               -> swarm.github.enable
  otel.collector.port         -> swarm.hiveOtel.collectorPort
  otel.extraResourceAttributes -> swarm.hiveOtel.extraResourceAttributes

Every old path is a mkRenamedOptionModule alias, so a host that sets one
keeps its value and gets an eval warning naming the new path. Types and
defaults are unchanged, so the rendered meta flake, serve.json and
hive-c0re's environment are the same as before on a host that sets
none of them.

The readers move with them: serve.json and its gc-root assertion, the
hive-c0re environment, the hive collector's listen address and bridge
port, the swarm collector's port-collision assertion, and the
claude-login and review-classifier containers' claude pin. The
swarm-services-switch fixture sets the swarm path and now also checks
that serve.json carries the pinned claude.

Part of #4857 (slice 2).

docs/integrations/github.md

@@ -19,17 +19,17 @@ needed — an agent gains GitHub by having a PAT stored for it.
 
 <!-- vale write-good.Passive = YES -->
 
-To turn it off for the whole hive, set the host option:
+To turn it off for the whole swarm, set the swarm option:
 
 ```nix
-services.hyperhive.github.enable = false;
+services.hyperhive.swarm.github.enable = false;
 ```
 
 hive-c0re's meta-flake renderer then injects `services.hyperhive.agent.github.enable = false`
 into every agent, so no agent ships the `gh` wrapper, the credential helper
 or the token fetch.
 (`services.hyperhive.agent.github.enable` also exists per-agent for completeness, but the
-hive-wide host switch is the intended control.)
+swarm-wide switch is the intended control.)
 
 github.com only. The token **value** never touches nix — the agent writes it
 to `<state>/github-token` at runtime (see [Provisioning](#provisioning)).

docs/networking/gateway.md

@@ -129,7 +129,7 @@ The name sits under the swarm domain so authelia's session cookie reaches it, wh
 
 nginx is the one external entry point. The per-agent web-port range (`8100`–`8999`) stays closed: agents serve their UI on a unix socket ([Per-agent unix-socket upstream](#per-agent-unix-socket-upstream)), and the hashed TCP port (`lifecycle::agent_web_port`) is only a fallback bind for an agent missing `HIVE_WEB_SOCKET` — the gateway never proxies through it.
 
-The dashboard port (`services.hyperhive.c0re.dashboardPort`, default 7000) binds `127.0.0.1` only, so remote dashboard access goes through the gateway. The dashboard can stop, rebuild and destroy agents; don't expose it without a reverse proxy in front.
+The dashboard port (`services.hyperhive.swarm.dashboardPort`, default 7000) binds `127.0.0.1` only, so remote dashboard access goes through the gateway. The dashboard can stop, rebuild and destroy agents; don't expose it without a reverse proxy in front.
 
 nginx serves its `stub_status` counters on `127.0.0.1:<statusPort>` (`services.hyperhive.gateway.statusPort`, default 8085) at `/stub_status`, from a server of its own outside the vhost tree. The hive's collector reads them with its `nginx` receiver, and the `gateway` Grafana dashboard plots them. The receiver only dials `http://`, which is why this is loopback TCP rather than a unix socket.
 

docs/process/conventions.md

@@ -11,7 +11,7 @@ exist because something already went wrong without them.
 - `MAX_AGENT_NAME` in `hive-c0re/src/lifecycle/mod.rs` enforces the cap.
 - Per-agent web UI port = `WEB_PORT_BASE + FNV1a(name) % WEB_PORT_RANGE`
   (8100..8999) for every agent; dashboard
-  `services.hyperhive.c0re.dashboardPort` (default 7000).
+  `services.hyperhive.swarm.dashboardPort` (default 7000).
 
 ## Hive identity (label + domain + display names)
 

docs/process/gotchas.md

@@ -140,7 +140,7 @@ _different_ nixpkgs by itself: a container only ever sees the one
 nixpkgs the meta flake injects, so an `agent.nix` naming the host's
 `nixpkgs-unstable` has nothing to name. A release channel can trail
 unstable by weeks on this package, which is what
-`services.hyperhive.c0re.claudeCodePackage` is for — set it host-side
+`services.hyperhive.swarm.claudeCodePackage` is for — set it host-side
 and every agent runs that build.
 
 What crosses is the **store path**, not the derivation. Containers
@@ -228,7 +228,7 @@ agent (different hash → different port) and rebuilding. No state
 file, no probing, no port-allocation drift — the value is
 reproducible from just the name. Every agent hashes into
 8100..8999 via the same FNV-1a; dashboard
-at `services.hyperhive.c0re.dashboardPort` (default 7000).
+at `services.hyperhive.swarm.dashboardPort` (default 7000).
 
 ### Restart races on TCP bind
 

docs/scheduler/observability.md

@@ -179,9 +179,12 @@ To let agents reach some other host-local service of your own →
 The nix module (`nix/host-modules/otel.nix`) generates every
 `services.hyperhive.otel.*` option's full type, default, description and
 example into the [options reference](https://hyperhive.darkest.space/options/)
-(host options — `nix build .#docs-host` for a local render). That's the
+(host options — `nix build .#docs-host` for a local render). The values every
-reference; this page covers what a per-option listing can't: the two-tier
+hive and its agents share live in the same module under
-architecture, the security model, and how the options interact.
+`services.hyperhive.swarm.hiveOtel.*`: the collector port and
+`extraResourceAttributes`, set once for the swarm. That's the reference;
+this page covers what a per-option listing can't: the two-tier architecture,
+the security model, and how the options interact.
 
 ## Built-in resource labels
 

docs/swarm/claude-login.md

@@ -7,8 +7,8 @@ agent's harness installs them from there.
 
 Where it runs and how it's enabled: [`services.md`](services.md#claude-login-minter).
 
-The service runs the `claude-code` that `services.hyperhive.c0re.claudeCodePackage`
+The service runs the `claude-code` that `services.hyperhive.swarm.claudeCodePackage`
-pins for agents, and its container's own nixpkgs' where the hive pins none.
+pins for agents, and its container's own nixpkgs' where the swarm pins none.
 
 ## What happens on a login
 

docs/swarm/review-classifier.md

@@ -145,8 +145,8 @@ config) and an empty directory of its own. The prompt reaches it on stdin as
 one user message in `--input-format stream-json`, so that it can carry content
 blocks (see [Shared context](#shared-context)).
 
-The `claude` is the one `services.hyperhive.c0re.claudeCodePackage` pins for
+The `claude` is the one `services.hyperhive.swarm.claudeCodePackage` pins for
-agents, or its container's own nixpkgs' where the hive pins none.
+agents, or its container's own nixpkgs' where the swarm pins none.
 
 On the ACP runtime, each classification is one prompt on a new `opencode acp`
 session. Its config and opencode's state live in a directory of its own,

docs/turn-loop/claude-invocation.md

@@ -32,8 +32,8 @@ to the bus.
 harness unit's PATH. By default that's the `claude-code` in the agent's
 own nixpkgs (the meta flake's `nixpkgs` input) via
 `environment.systemPackages`. Since that's typically a release channel and
-this package moves fast, the operator can pin one hive-wide with
+this package moves fast, the operator can pin one swarm-wide with
-`services.hyperhive.c0re.claudeCodePackage`: hive-c0re writes its
+`services.hyperhive.swarm.claudeCodePackage`: hive-c0re writes its
 store path into each agent's flake, and `claude` on PATH becomes a symlink to it
 instead of the container's own `claude-code` — so there's only ever one
 `claude` in the container. Agents pick up a new build on their

hive-c0re/src/coordinator.rs

@@ -54,7 +54,7 @@ pub struct Coordinator {
     pub nixpkgs_flake: String,
     /// Store path of the `claude-code` build every agent runs, written
     /// into each per-agent flake as `services.hyperhive.agent.claudeCodePath`. Set by
-    /// the NixOS module option `services.hyperhive.c0re.claudeCodePackage`
+    /// the NixOS module option `services.hyperhive.swarm.claudeCodePackage`
     /// (which resolves the package and hands us its path). `None` = every
     /// agent keeps the `claude-code` from its own nixpkgs.
     ///

hive-c0re/src/meta.rs

@@ -551,8 +551,8 @@ fn hive_ca_source() -> Option<String> {
 }
 
 /// Hive-wide OTEL config injected into every agent's build, read off
-/// hive-c0re's own unit env (set from `services.hyperhive.otel.*`). A
+/// hive-c0re's own unit env (set from `services.hyperhive.otel.*` and
-/// present, non-empty
+/// `services.hyperhive.swarm.hiveOtel.*`). A present, non-empty
 /// `HYPERHIVE_OTEL_ENDPOINT` is the enable signal — the host module
 /// asserts the endpoint is set whenever `otel.enable` is true, so
 /// "endpoint present" == "OTEL on". The optional fields map to the
@@ -922,8 +922,8 @@ where
     // operation the tests exercise directly.
     push_forwarded_var_options(&mut out, &forwarded_env_vars());
     // GitHub integration is on by default in every agent
-    // (`services.hyperhive.agent.github.enable`); the host turns it off hive-wide via
+    // (`services.hyperhive.agent.github.enable`); the host turns it off swarm-wide via
-    // `services.hyperhive.github.enable = false`, surfaced here as the
+    // `services.hyperhive.swarm.github.enable = false`, surfaced here as the
     // `HYPERHIVE_GITHUB_DISABLED` env on hive-c0re's unit. Only the OFF
     // override is propagated — the enabled default needs no per-agent line.
     if std::env::var_os("HYPERHIVE_GITHUB_DISABLED").is_some() {
@@ -1986,7 +1986,7 @@ mod tests {
 
     #[test]
     fn render_flake_injects_github_disable_only_when_signalled() {
-        // services.hyperhive.github.enable = false -> HYPERHIVE_GITHUB_DISABLED
+        // services.hyperhive.swarm.github.enable = false -> HYPERHIVE_GITHUB_DISABLED
         // on hive-c0re's unit -> `services.hyperhive.agent.github.enable = false` injected into
         // every agent. On by default, so nothing is emitted unless disabled.
         //

nix/agent-modules/default.nix

@@ -96,7 +96,7 @@ in
       nixpkgs.
 
       Set by the generated meta flake when the operator sets
-      `services.hyperhive.c0re.claudeCodePackage` host-side, so a hive
+      `services.hyperhive.swarm.claudeCodePackage` host-side, so a swarm
       can run a claude built from a *different* nixpkgs than the one
       its agents evaluate against — a release channel can trail
       unstable by weeks on this one package. It arrives as a path and
@@ -109,7 +109,7 @@ in
       there is only ever one claude in the container. Note that neither
       the symlink nor anything else in the container's closure *refers*
       to the target — keeping it alive is the host's job, see
-      `services.hyperhive.c0re.claudeCodePackage`.
+      `services.hyperhive.swarm.claudeCodePackage`.
     '';
   };
 
@@ -255,7 +255,7 @@ in
           # The symlink registers no store reference — the target isn't
           # among this derivation's inputs, so nothing here keeps the
           # binary alive. That is deliberate and it is the host's job:
-          # see `services.hyperhive.c0re.claudeCodePackage`.
+          # see `services.hyperhive.swarm.claudeCodePackage`.
           pkgs.runCommandLocal "claude-code-pinned" { } ''
             mkdir -p "$out/bin"
             ln -s ${config.services.hyperhive.agent.claudeCodePath}/bin/claude "$out/bin/claude"

nix/agent-modules/github.nix

@@ -55,8 +55,8 @@ in
       a compromised agent can act within the token's scopes --- scope is the
       real blast-radius limiter.
 
-      On by default. Host-driven: set `services.hyperhive.github.enable = false`
+      On by default. Host-driven: set `services.hyperhive.swarm.github.enable = false`
-      to turn the integration off hive-wide (meta.rs propagates the override
+      to turn the integration off swarm-wide (meta.rs propagates the override
       into every agent).
     '';
   };

nix/agent-modules/otel.nix

@@ -125,7 +125,7 @@ in
         Extra comma-separated entries appended to
         `OTEL_RESOURCE_ATTRIBUTES` after the built-in
         `service.name` / `agent` / `swarm` labels.
-        Host-driven via `services.hyperhive.otel.extraResourceAttributes`.
+        Host-driven via `services.hyperhive.swarm.hiveOtel.extraResourceAttributes`.
       '';
     };
 

nix/host-modules/hive-c0re/default.nix

@@ -12,6 +12,7 @@
 }:
 let
   cfg = config.services.hyperhive.c0re;
+  swarmCfg = config.services.hyperhive.swarm;
 
   # `/run/hyperhive`'s mode. Held in one place because whichever of the two
   # units below activates first creates the directory, so they cannot be
@@ -110,8 +111,8 @@ let
     # anything that drops it. The failure mode is a garbage-collected
     # `claude` and a hive that can't take a turn, weeks after the commit
     # that caused it.
-    claude_code_path = cfg.claudeCodePackage;
+    claude_code_path = swarmCfg.claudeCodePackage;
-    dashboard_port = cfg.dashboardPort;
+    dashboard_port = swarmCfg.dashboardPort;
     agent_cpu_quota = cfg.agentCpuQuota;
     agent_memory_max = cfg.agentMemoryMax;
     agent_cpu_weight = cfg.agentCpuWeight;
@@ -163,9 +164,10 @@ in
         # `claude`, at whatever unrelated moment the gc runs. Cheap
         # enough to just check.
         assertion =
-          cfg.claudeCodePackage == null || builtins.hasContext (builtins.toJSON cfg.claudeCodePackage);
+          swarmCfg.claudeCodePackage == null
+          || builtins.hasContext (builtins.toJSON swarmCfg.claudeCodePackage);
         message = ''
-          services.hyperhive.c0re.claudeCodePackage lost its store
+          services.hyperhive.swarm.claudeCodePackage lost its store
           context on the way into /etc/hyperhive/serve.json, so the
           package is no longer gc-rooted by the system closure and
           `nix-collect-garbage` may delete the claude every agent runs.

nix/host-modules/hive-c0re/environment.nix

@@ -65,27 +65,29 @@ in
 // lib.optionalAttrs (config.services.hyperhive.swarm.name != null) {
   HYPERHIVE_SWARM_NAME = config.services.hyperhive.swarm.name;
 }
-// lib.optionalAttrs (!config.services.hyperhive.github.enable) {
+// lib.optionalAttrs (!config.services.hyperhive.swarm.github.enable) {
   # GitHub integration is on by default; only signal the OFF override to
   # meta.rs, which then injects `services.hyperhive.agent.github.enable = false` into
-  # every agent. See services.hyperhive.github.enable.
+  # every agent. See services.hyperhive.swarm.github.enable.
   HYPERHIVE_GITHUB_DISABLED = "1";
 }
 // lib.optionalAttrs config.services.hyperhive.otel.enable (
-  # Hive-wide OTEL config -> read by meta.rs::otel_config and
+  # OTEL config (`swarm.hiveOtel`, gated on this hive's `otel.enable`) ->
-  # injected as build-time `services.hyperhive.agent.otel.*` into every agent.
+  # read by meta.rs::otel_config and injected as build-time
+  # `services.hyperhive.agent.otel.*` into every agent.
   # Endpoint presence is the enable signal on the meta side; the
   # optional fields are only emitted when set so absent values
   # don't render no-op env lines.
   let
     otel = config.services.hyperhive.otel;
+    hiveOtel = config.services.hyperhive.swarm.hiveOtel;
     # The first hop, this hive's own collector, under the two spellings its
     # two kinds of caller need. Agents get the swarm-wide name, so their
     # builds carry nothing hive-specific; this daemon gets the bridge
     # address, because on the host the name may resolve to loopback
     # (`gateway.localHostsEntry`), where the receiver does not listen.
-    agentFirstHop = "http://${otel.collector.host}:${toString otel.collector.port}";
+    agentFirstHop = "http://${otel.collector.host}:${toString hiveOtel.collectorPort}";
-    hostFirstHop = "http://${config.services.hyperhive.network.bridgeIp}:${toString otel.collector.port}";
+    hostFirstHop = "http://${config.services.hyperhive.network.bridgeIp}:${toString hiveOtel.collectorPort}";
   in
   {
     # `otel.endpoint` means "where telemetry ultimately goes" and keeps
@@ -113,8 +115,8 @@ in
     # what has to honour it (see nix/host-modules/otel.nix).
     HYPERHIVE_OTEL_PROTOCOL = "http/protobuf";
   }
-  // lib.optionalAttrs (otel.extraResourceAttributes != "") {
+  // lib.optionalAttrs (hiveOtel.extraResourceAttributes != "") {
-    HYPERHIVE_OTEL_EXTRA_RESOURCE_ATTRIBUTES = otel.extraResourceAttributes;
+    HYPERHIVE_OTEL_EXTRA_RESOURCE_ATTRIBUTES = hiveOtel.extraResourceAttributes;
   }
   # HYPERHIVE_OTEL_HEADERS_CREDENTIAL is deliberately NOT emitted, and
   # its absence is the security half of this design: that variable would

nix/host-modules/hive-c0re/options.nix

@@ -3,17 +3,29 @@
 # `nixosModules.default` wires to its own outputs (they carry no
 # in-module defaults; see ../../../flake.nix). The read-only
 # `servedFrontend` option lives in ./theme.nix with the stylix wiring
-# that computes it.
+# that computes it. The swarm-wide values the meta-flake render hands
+# every agent are declared here too, under `services.hyperhive.swarm`.
 {
   pkgs,
   lib,
   ...
 }:
+let
+  renamedToSwarm =
+    name:
+    lib.mkRenamedOptionModule
+      [ "services" "hyperhive" "c0re" name ]
+      [ "services" "hyperhive" "swarm" name ];
+in
 {
   imports = [
     (lib.mkRemovedOptionModule [ "services" "hyperhive" "c0re" "managerToplevel" ] ''
       Every agent, ruth included, builds from `agentBaseToplevel`. Remove this definition.
     '')
+  ]
+  ++ map renamedToSwarm [
+    "claudeCodePackage"
+    "dashboardPort"
   ];
 
   options.services.hyperhive.c0re = {
@@ -119,56 +131,6 @@
         of the host's channel.
       '';
     };
-    claudeCodePackage = lib.mkOption {
-      type = lib.types.nullOr lib.types.package;
-      default = null;
-      example = lib.literalExpression "inputs.nixpkgs-unstable.legacyPackages.x86_64-linux.claude-code";
-      description = ''
-        The `claude-code` build every agent runs, or `null` (the
-        default) to leave each agent on the `claude-code` from its own
-        nixpkgs — i.e. whatever `nixpkgsFlake` resolves to.
-
-        This is the one binary the whole hive is built around, and it
-        moves fast enough that a release channel routinely trails
-        unstable by weeks on it. An agent cannot fix that for itself:
-        agents evaluate against the single nixpkgs hive-c0re injects,
-        so an `agent.nix` has no other tree to reach for. Set this from
-        a second nixpkgs in the host flake and every agent follows,
-        without moving the nixpkgs the rest of the container is built
-        from.
-
-        What travels into the container is the **store path**, not the
-        derivation: agents share the host's `/nix/store`, so the binary
-        and its full closure are already reachable there — nothing
-        needs rebuilding or copying. hive-c0re writes the path into
-        each agent's generated flake as a plain string literal (a bare
-        path fed to `lib.types.package` would run `builtins.storePath`,
-        which is illegal under pure evaluation) and the agent module
-        puts its `bin/` on the harness's PATH.
-
-        The flip side of a plain string is that nothing in the agent's
-        own closure refers to it, so the container cannot keep it
-        alive. The **host** does that instead: this package is
-        interpolated into `/etc/hyperhive/serve.json`, which puts it in
-        the host's system closure — so it is gc-rooted by the running
-        generation for exactly as long as that generation is the one
-        the agents were rendered from. The cost is that
-        `nix-collect-garbage` cannot reclaim an old `claude-code` until
-        every agent has been rebuilt past it and the old generations
-        are gone.
-
-        The swarm's `swarm-claude-login` and `swarm-review-classifier`
-        containers, where this host runs them, follow the same pin and
-        keep their own nixpkgs' `claude-code` when it is `null`. They are
-        not agents, so pinning an older build for an agent-side
-        regression pins them too.
-      '';
-    };
-    dashboardPort = lib.mkOption {
-      type = lib.types.port;
-      default = 7000;
-      description = "TCP port the hive-c0re dashboard listens on.";
-    };
     preBuildAgentTemplates = lib.mkOption {
       type = lib.types.bool;
       default = false;
@@ -377,4 +339,59 @@
       '';
     };
   };
+
+  # What every agent in the swarm is handed through the meta-flake render,
+  # whichever hive builds it. Swarm-wide so that no hive's agents differ.
+  options.services.hyperhive.swarm = {
+    claudeCodePackage = lib.mkOption {
+      type = lib.types.nullOr lib.types.package;
+      default = null;
+      example = lib.literalExpression "inputs.nixpkgs-unstable.legacyPackages.x86_64-linux.claude-code";
+      description = ''
+        The `claude-code` build every agent runs, or `null` (the
+        default) to leave each agent on the `claude-code` from its own
+        nixpkgs — i.e. whatever `c0re.nixpkgsFlake` resolves to.
+
+        This is the one binary the whole swarm is built around, and it
+        moves fast enough that a release channel routinely trails
+        unstable by weeks on it. An agent cannot fix that for itself:
+        agents evaluate against the single nixpkgs hive-c0re injects,
+        so an `agent.nix` has no other tree to reach for. Set this from
+        a second nixpkgs in the host flake and every agent follows,
+        without moving the nixpkgs the rest of the container is built
+        from.
+
+        What travels into the container is the **store path**, not the
+        derivation: agents share the host's `/nix/store`, so the binary
+        and its full closure are already reachable there — nothing
+        needs rebuilding or copying. hive-c0re writes the path into
+        each agent's generated flake as a plain string literal (a bare
+        path fed to `lib.types.package` would run `builtins.storePath`,
+        which is illegal under pure evaluation) and the agent module
+        puts its `bin/` on the harness's PATH.
+
+        The flip side of a plain string is that nothing in the agent's
+        own closure refers to it, so the container cannot keep it
+        alive. The **host** does that instead: this package is
+        interpolated into `/etc/hyperhive/serve.json`, which puts it in
+        the host's system closure — so it is gc-rooted by the running
+        generation for exactly as long as that generation is the one
+        the agents were rendered from. The cost is that
+        `nix-collect-garbage` cannot reclaim an old `claude-code` until
+        every agent has been rebuilt past it and the old generations
+        are gone.
+
+        The swarm's `swarm-claude-login` and `swarm-review-classifier`
+        containers, where this host runs them, follow the same pin and
+        keep their own nixpkgs' `claude-code` when it is `null`. They are
+        not agents, so pinning an older build for an agent-side
+        regression pins them too.
+      '';
+    };
+    dashboardPort = lib.mkOption {
+      type = lib.types.port;
+      default = 7000;
+      description = "TCP port every hive's hive-c0re dashboard listens on.";
+    };
+  };
 }

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

@@ -62,7 +62,7 @@ in
       description = ''
         TCP port the gateway proxies non-static requests to. Defaults
         to `7000` (hive-c0re's out-of-the-box dashboard port). Operators
-        who change `services.hyperhive.c0re.dashboardPort` should set
+        who change `services.hyperhive.swarm.dashboardPort` should set
         `upstreamPort` to match — kept as a hardcoded default rather
         than a cross-reference to keep this module's options eval
         independent of c0re's option tree shape.

nix/host-modules/hive-network.nix

@@ -29,7 +29,7 @@ let
   networkBase = builtins.bitAnd (ipToInt cfg.bridgeIp) (4294967295 - hostCount + 1);
 
   # Every switch that runs a hyperhive service on this host. Left out:
-  # `github.enable` (on by default, runs nothing by itself), the gateway's
+  # `swarm.github.enable` (on by default, runs nothing by itself), the gateway's
   # and matrix's sub-features, and `allSwarmServices`/`singleHostSwarm`,
   # which only take effect through the switches listed here.
   anyServiceEnabled =

nix/host-modules/hyperhive.nix

@@ -17,6 +17,10 @@ in
       ruth from the swarm dashboard like any other agent; a ruth container that
       already exists keeps starting with the hive.
     '')
+    (lib.mkRenamedOptionModule
+      [ "services" "hyperhive" "github" "enable" ]
+      [ "services" "hyperhive" "swarm" "github" "enable" ]
+    )
   ];
 
   # Canonical hive DNS domain shared by every subsystem that needs a
@@ -192,15 +196,15 @@ in
   # the values it asserts. It is a deployment mode rather than a setting
   # this module's options read, so it lives with its consequences.
 
-  options.services.hyperhive.github.enable = lib.mkOption {
+  options.services.hyperhive.swarm.github.enable = lib.mkOption {
     type = lib.types.bool;
     default = true;
     example = false;
     description = ''
-      Hive-wide switch for the per-agent GitHub integration (the `gh` CLI
+      Swarm-wide switch for the per-agent GitHub integration (the `gh` CLI
       wrapper + git credential helper, per `services.hyperhive.agent.github.enable`). On by
       default: every agent gets the integration, inert until an operator links
-      a PAT for it in the swarm UI. Set `false` to turn it off for the whole hive --- the
+      a PAT for it in the swarm UI. Set `false` to turn it off for the whole swarm --- the
       meta-flake renderer (`hive-c0re/src/meta.rs`) then injects
       `services.hyperhive.agent.github.enable = false` into every agent. Exposed to hive-c0re
       as `HYPERHIVE_GITHUB_DISABLED` (set only when the integration is off).

nix/host-modules/otel.nix

@@ -57,6 +57,14 @@ in
       hostUnit = true;
       enable = config.services.hyperhive.otel.enable;
     })
+    (lib.mkRenamedOptionModule
+      [ "services" "hyperhive" "otel" "collector" "port" ]
+      [ "services" "hyperhive" "swarm" "hiveOtel" "collectorPort" ]
+    )
+    (lib.mkRenamedOptionModule
+      [ "services" "hyperhive" "otel" "extraResourceAttributes" ]
+      [ "services" "hyperhive" "swarm" "hiveOtel" "extraResourceAttributes" ]
+    )
   ];
 
   options.services.hyperhive.otel = {
@@ -147,17 +155,6 @@ in
       '';
     };
 
-    extraResourceAttributes = lib.mkOption {
-      type = lib.types.str;
-      default = "";
-      example = "deployment.environment=prod";
-      description = ''
-        Extra comma-separated entries appended to
-        `OTEL_RESOURCE_ATTRIBUTES` after the built-in
-        `service.name` / `agent` / `hive` / `swarm` labels.
-      '';
-    };
-
     collector.upstreamHeaderName = lib.mkOption {
       type = lib.types.str;
       default = "Authorization";
@@ -178,21 +175,6 @@ in
       '';
     };
 
-    collector.port = lib.mkOption {
-      type = lib.types.port;
-      default = 4318;
-      description = ''
-        Port the collector's OTLP/HTTP receiver listens on, at
-        `services.hyperhive.network.bridgeIp`. 4318 is the OTLP/HTTP
-        default.
-
-        The port is contributed to
-        `services.hyperhive.network.exposeHostPorts`, which opens it on
-        the bridge interface only — so it is reachable from agent
-        containers and not from the outside world.
-      '';
-    };
-
     collector.host = lib.mkOption {
       type = lib.types.str;
       readOnly = true;
@@ -296,14 +278,46 @@ in
     };
   };
 
+  # Shared by every hive's otel tier and its agents, so an agent's build
+  # carries the same values whichever hive renders it.
+  options.services.hyperhive.swarm.hiveOtel = {
+    collectorPort = lib.mkOption {
+      type = lib.types.port;
+      default = 4318;
+      description = ''
+        Port of every hive collector's OTLP/HTTP receiver, at that hive's
+        `services.hyperhive.network.bridgeIp`: the port agents dial at
+        `services.hyperhive.otel.collector.host`. 4318 is the OTLP/HTTP
+        default.
+
+        The port is contributed to
+        `services.hyperhive.network.exposeHostPorts`, which opens it on
+        the bridge interface only — so it is reachable from agent
+        containers and not from the outside world.
+      '';
+    };
+
+    extraResourceAttributes = lib.mkOption {
+      type = lib.types.str;
+      default = "";
+      example = "deployment.environment=prod";
+      description = ''
+        Extra comma-separated entries appended to
+        `OTEL_RESOURCE_ATTRIBUTES` after the built-in
+        `service.name` / `agent` / `hive` / `swarm` labels.
+      '';
+    };
+  };
+
   config = lib.mkIf config.services.hyperhive.otel.enable (
     let
       otel = config.services.hyperhive.otel;
       autheliaCfg = config.services.hyperhive.swarm.authelia;
       deployCfg = config.services.hyperhive.deploy;
       swarmOtelCfg = config.services.hyperhive.swarm.otel;
+      hiveOtelCfg = config.services.hyperhive.swarm.hiveOtel;
       hiveName = config.services.hyperhive.hiveName;
-      listen = "${config.services.hyperhive.network.bridgeIp}:${toString otel.collector.port}";
+      listen = "${config.services.hyperhive.network.bridgeIp}:${toString hiveOtelCfg.collectorPort}";
       swarmName = "otlphttp/swarm";
       gatewayCfg = config.services.hyperhive.gateway;
       authName = "oauth2client/swarm";
@@ -351,7 +365,7 @@ in
     {
       # Reachable from agent containers and nowhere else: this opens
       # the port on the bridge interface only.
-      services.hyperhive.network.exposeHostPorts = [ otel.collector.port ];
+      services.hyperhive.network.exposeHostPorts = [ hiveOtelCfg.collectorPort ];
 
       # The name agents dial, answered with the bridge IP the receiver binds.
       services.hyperhive.gateway.localNames = [ otel.collector.host ];

nix/host-modules/swarm-claude-login.nix

@@ -23,12 +23,12 @@ let
   hyperhiveCfg = config.services.hyperhive;
 
   # The `claude-code` the agents run, so this container does not trail them on
-  # the CLI; `fallback`, the container's own nixpkgs', only where the hive pins
+  # the CLI; `fallback`, the container's own nixpkgs', only where the swarm pins
   # none.
   claudeCode =
     fallback:
-    if hyperhiveCfg.c0re.claudeCodePackage != null then
+    if hyperhiveCfg.swarm.claudeCodePackage != null then
-      hyperhiveCfg.c0re.claudeCodePackage
+      hyperhiveCfg.swarm.claudeCodePackage
     else
       fallback;
   cfg = hyperhiveCfg.deploy.claude-login;

nix/host-modules/swarm-otel-service.nix

@@ -67,7 +67,7 @@ in
         with it.
 
         ⚠️ **Deliberately not 4318**, the OTLP/HTTP default, because the
-        hive tier already uses it (`services.hyperhive.otel.collector.port`)
+        hive tier already uses it (`services.hyperhive.swarm.hiveOtel.collectorPort`)
         and every swarm container shares the host's network namespace. Two
         listeners claiming one port on one host is not a build failure —
         it is a runtime coin toss over which one gets it, with nothing in

nix/host-modules/swarm-otel.nix

@@ -779,7 +779,7 @@ in
             others = [
               cfg.telemetryPort
               cfg.producerPort
-              otelCfg.collector.port
+              config.services.hyperhive.swarm.hiveOtel.collectorPort
             ]
             ++ map (p: p.port) (lib.attrValues serviceProducers);
             all = derived ++ others;

nix/host-modules/swarm-review-classifier.nix

@@ -24,12 +24,12 @@ let
   hyperhiveCfg = config.services.hyperhive;
 
   # The `claude-code` the agents run, so this container does not trail them on
-  # the CLI; `fallback`, the container's own nixpkgs', only where the hive pins
+  # the CLI; `fallback`, the container's own nixpkgs', only where the swarm pins
   # none.
   claudeCode =
     fallback:
-    if hyperhiveCfg.c0re.claudeCodePackage != null then
+    if hyperhiveCfg.swarm.claudeCodePackage != null then
-      hyperhiveCfg.c0re.claudeCodePackage
+      hyperhiveCfg.swarm.claudeCodePackage
     else
       fallback;
   cfg = hyperhiveCfg.deploy.review-classifier;
@@ -100,7 +100,7 @@ let
   otelEnv = lib.optionalAttrs otelCfg.enable {
     CLAUDE_CODE_ENABLE_TELEMETRY = "1";
     OTEL_METRICS_EXPORTER = "otlp";
-    OTEL_EXPORTER_OTLP_ENDPOINT = "http://${networkCfg.bridgeIp}:${toString otelCfg.collector.port}";
+    OTEL_EXPORTER_OTLP_ENDPOINT = "http://${networkCfg.bridgeIp}:${toString hyperhiveCfg.swarm.hiveOtel.collectorPort}";
     OTEL_EXPORTER_OTLP_PROTOCOL = "http/protobuf";
     # Claude Code defaults to delta, which the metrics store drops.
     OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE = "cumulative";

nix/module-eval/swarm-services-switch.nix

@@ -99,11 +99,11 @@ let
     deploy.builder.enable = false;
   };
 
-  # Same, with the claude-code build the agents run pinned on the hive. Any
+  # Same, with the claude-code build the agents run pinned for the swarm. Any
   # package serves: only the path the containers are pointed at is read.
   swarmServicesPinnedClaude = hiveWithController {
     deploy.allSwarmServices = true;
-    c0re.claudeCodePackage = pkgs.hello;
+    swarm.claudeCodePackage = pkgs.hello;
   };
 
   # Same, with one of those services placed on another host. Every derivation
@@ -283,14 +283,23 @@ let
     {
       # The CLI is the one the agents run, not the container's own nixpkgs'.
       # Unpinned is the control: it falls back to the container's own `claude-code`.
-      name = "the claude login minter and the review classifier run the claude-code the hive pins";
+      # serve.json is what hive-c0re renders every agent's `claudeCodePath` from.
+      name = "the agents, the claude login minter and the review classifier run the claude-code the swarm pins";
       ok =
         let
           claudeOf =
             host: container: unit: var:
             host.containers.${container}.config.systemd.services.${unit}.environment.${var};
           pinned = "${pkgs.hello}/bin/claude";
+          servedClaude =
+            host:
+            (builtins.fromJSON (
+              builtins.unsafeDiscardStringContext host.environment.etc."hyperhive/serve.json".text
+            )).claude_code_path;
         in
+        servedClaude swarmServicesPinnedClaude == "${pkgs.hello}"
+        && servedClaude swarmServicesHere == null
+        &&
           claudeOf swarmServicesPinnedClaude "swarm-claude-login" "swarm-claude-login"
             "SWARM_CLAUDE_LOGIN_CLAUDE" == pinned
         &&