Venue error reference

not enough balance / allowance

Machine-readable preflight context for agents that see this venue failure mode.

class
R2_ALLOWANCE_BALANCE
code
ALLOWANCE_EVIDENCE_MISSING

What preflight checks

Check collateral mode, token, balance and exchange-contract allowance before constructing an order.

Agent instruction

Call /v1/preflight before retrying. Do not submit until allowance and token evidence are current.

GET /v1/preflight/{venue}/{market_id}
if verdict in ["DO_NOT_ACT", "INSUFFICIENT_EVIDENCE"]:
    do_not_submit()

Operational diagnostics only. No execution, no custody, no order signing, no advice.