rivetkit hard-depends on @rivet-dev/agent-os-core (~1.1 GB incl. AI SDKs) even when Agent OS is not used #5910

Environment

• rivetkit 2.3.27, npm, Node 22, macOS arm64 and linux (Docker image build)

Expected

Docs list Agent OS as a separate integration (@rivet-dev/agentos). An app that only uses actors,
workflows, queues and cron should install rivetkit without the Agent OS runtime and AI SDKs.

Actual

rivetkit@2.3.27 lists "@rivet-dev/agent-os-core": "^0.1.1" under dependencies, which pulls in
@agentos-software/* and AI SDKs (@anthropic-ai/*, @google/*, @mistralai/*,
@mariozechner/pi-*).

Repro

mkdir lean && cd lean && npm init -y
npm install rivetkit@2.3.27
npm view rivetkit@2.3.27 dependencies | grep agent-os
npm explain @rivet-dev/agent-os-core
du -sh node_modules node_modules/@rivet-dev node_modules/@agentos-software

Measured

• node_modules after npm install rivetkit@2.3.27: 1.8 GB — @rivet-dev 683 MB,
  @agentos-software 418 MB, engine CLI binary 97 MB, NAPI 41 MB.
• ~1.1 GB of that is attributable to the Agent OS chain; it ships in every app/worker image and in
  self-hosted bundles, and widens the supply-chain review (several AI vendor SDKs we never call).

Question / suggested fix

Could @rivet-dev/agent-os-core become an optional or peer dependency (or move behind the
@rivet-dev/agentos package), so actor-only users get a lean install? If there's a supported way to
exclude it today, please document it.