feat(user-action): add TransferCrossToIso / TransferIsoToCross call messages (BE-418) - #86
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feat(user-action): add TransferCrossToIso / TransferIsoToCross call messages (BE-418)#860xtristan wants to merge 1 commit into
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…sages (BE-418) Add two intra-account, delegate-authorizable USDC transfer variants between the cross margin pool and a market's isolated margin bucket, using the previously reserved discriminants 18/19 (ABI-safe). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PypqF2ZyuPApGKuc3szjLA
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What
Adds two intra-account USDC transfer call messages to
UserAction:TransferCrossToIso { market_id, amount, sub_account_index }= 18TransferIsoToCross { market_id, amount, sub_account_index }= 19They move collateral between the account's cross pool and a market's isolated-margin bucket. Funds never leave the account, so these are delegate-authorizable (same risk class as
PlaceOrders) — unlike the externalDepositIso/WithdrawIso. Uses the previously-reserved discriminants 18/19 (ABI-safe: explicit#[repr(u8)]+borsh(use_discriminant)).Why
Enables Hyperliquid/CEX-parity isolated-margin UX: fund an iso position from your existing cross balance, agent-signed and instant — no external deposit, no wallet popup. Today there is no cross↔iso primitive at all.
Downstream (separate PRs)
transferCrossToIso/transferIsoToCrossfactories auto-generate from the schema on the version bump.🤖 Generated with Claude Code
Summary by cubic
Adds two intra-account
UserActionmessages to move USDC between cross margin and a market’s isolated margin, enabling instant, agent-signed iso funding without external deposits (Linear BE-418). Uses reserved discriminants 18/19 to keep the ABI stable.TransferCrossToIso { market_id, amount, sub_account_index }= 18TransferIsoToCross { market_id, amount, sub_account_index }= 19PlaceOrders)#[repr(u8)]+borsh(use_discriminant)Written for commit 868da34. Summary will update on new commits.