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feat(#1184): make agent CPU quota and memory limit configurable

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damocles 2026-06-03 20:46:31 +02:00 • committed by mara
commit d1fbb4aef8
7 changed files with 80 additions and 12 deletions
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31
nix/modules/hive-c0re.nix
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@ -414,6 +414,35 @@ in
on the next `↻ R3BU1LD` — no per-agent approval needed.
'';
};
agentCpuQuota = lib.mkOption {
type = lib.types.str;
default = "200%";
example = "400%";
description = ''
systemd `CPUQuota=` applied to every agent container via a
`container@h-<name>.service.d/` drop-in written on each
spawn/rebuild. Expressed as a percentage of one CPU core —
`"200%"` allows each agent to use up to 2 cores. The old
hard-coded value was `"50%"`; bump this if agents are hitting
CPU limits during builds or heavy tool use.
For a hive-wide cap across all containers, set
`systemd.slices.machine.serviceConfig.CPUQuota` in your NixOS
config (all nspawn containers live in `machine.slice`).
'';
};
agentMemoryMax = lib.mkOption {
type = lib.types.str;
default = "4G";
example = "8G";
description = ''
systemd `MemoryMax=` applied to every agent container via the
same drop-in as `agentCpuQuota`. The old hard-coded value was
`"2G"`.
'';
};
};
config = lib.mkIf cfg.enable {
@ -616,7 +645,7 @@ in
);
};
serviceConfig = {
ExecStart = "${cfg.package}/bin/hive-c0re --socket /run/hyperhive/host.sock serve --hyperhive-flake ${cfg.hyperhiveFlake} --nixpkgs-flake ${cfg.nixpkgsFlake} --nixpkgs-unstable-flake ${cfg.nixpkgsUnstableFlake} --dashboard-port ${toString cfg.dashboardPort} --operator-pronouns ${lib.escapeShellArg cfg.operatorPronouns} --context-window-tokens ${lib.escapeShellArg (builtins.toJSON cfg.contextWindowTokens)}";
ExecStart = "${cfg.package}/bin/hive-c0re --socket /run/hyperhive/host.sock serve --hyperhive-flake ${cfg.hyperhiveFlake} --nixpkgs-flake ${cfg.nixpkgsFlake} --nixpkgs-unstable-flake ${cfg.nixpkgsUnstableFlake} --dashboard-port ${toString cfg.dashboardPort} --operator-pronouns ${lib.escapeShellArg cfg.operatorPronouns} --context-window-tokens ${lib.escapeShellArg (builtins.toJSON cfg.contextWindowTokens)} --agent-cpu-quota ${lib.escapeShellArg cfg.agentCpuQuota} --agent-memory-max ${lib.escapeShellArg cfg.agentMemoryMax}";
# Migrate hive-c0re's *own* state to the service user after an
# upgrade from a root-run install (systemd's StateDirectory only
# chowns the top-level dir, not pre-existing files inside it). The