@glideco/safe-encoder

Pure encoders for Safe v1.4.1 multisig transactions.

What's in here

• Canonical 10-field tx shape (SafeCanonicalTx) — load-bearing for cross-SDK-version safety. Different versions of @safe-global/protocol-kit default baseGas / gasPrice / refundReceiver differently; persisting the canonical shape and rebuilding execTransaction from it (instead of SDK defaults) prevents silent "user clicked execute, nothing happened" signature mismatches.
• MultiSendCallOnly bundle encoder for atomic multi-call signing (recovery-module enable, batch transfers, etc.).
• Canonical Safe v1.4.1 contract-address registry — same address on every EVM chain, vendored from safe-deployments to avoid dragging the full protocol-kit dependency graph into a tiny constant lookup.

Usage

import {
  assembleSafeCanonicalTx,
  encodeMultiSendCallOnly,
  safeSingletonFor,
  SAFE_PROXY_FACTORY_ADDRESS,
  SAFE_VERSION,
} from '@glideco/safe-encoder';

const tx = assembleSafeCanonicalTx({
  to: '0x…',
  value: '0',
  data: '0xa9059cbb…',
  nonce: 5,
});

// Multi-send: bundle 2 calls into one execTransaction
const bundle = encodeMultiSendCallOnly([
  { to: factory, value: 0n, data: deployModuleCalldata },
  { to: safeAddress, value: 0n, data: enableModuleCalldata },
]);

License

MIT