Every third-party system the platform depends on, with the owning service
and protocol noted on each edge. Cost or quota notes appear inline where
they constrain capacity.
No external-validator bridges, ever. Value crosses chains only via
Circle CCTP (USDC) or mutual-signature adjudication with operator float
pools — no Wormhole/LayerZero-style trust roots. Per-chain RPC lists,
addresses, and stakes live in the chain registry crate, never hardcoded.
Oracle calls are confined to dedicated adapters: Switchboard behind
the verifier’s attestor seam (devnet-gated), platform metrics behind the
read-only PlatformClient trait.
The deterministic VOW path deliberately has no external oracle
dependency — verification is sandbox re-execution plus a signed
attestation, reproducible by anyone from the artifact.
Discovery surfaces (MCP Registry entry, SKILL.md, llms.txt, the A2A card)
are described in L1 — Discovery & MCP.