Routescore

Routescore is a read-only pre-sign evidence layer for onchain agents — one element of the agentic execution stack, not the executor and not a guarantee. Primary tool: check_swap. Call it AFTER you have constructed a proposed swap and BEFORE you sign it or hand it to an executor. Given the notional, chain, and (optionally) the route and token, it returns a clear / caution / unsupported verdict with machine-readable reasons and caveats, and persists a hash-verifiable record of exactly what was known before signing. check_swap never signs, executes, routes funds, or custodies assets — the calling agent still decides whether to proceed. Relay the verdict, reasons, and caveats to the user or downstream executor verbatim: do not paraphrase away a caution or drop a caveat. Treat a verdict of "unsupported" as first-class evidence ("not evaluated"), not an error to retry around. Every check_swap call returns a record_id; use get_preflight_record to fetch that durable, offline-re-verifiab