Calldata Pipeline

7

Pipeline stages

Intent to broadcast

2,457

Selectors

Known function signatures

44+

Recipes

Deterministic TX templates

12+

Protocols

Full recipe coverage

The pipeline

Seven stages. One intent.

Understand

NL → JSON

Lookup

Route recipe

Assemble

Build calldata

Simulate

Anvil fork

Approve

State diff

Sign

Your device

Verify

Then broadcast

Routing

Three paths to calldata.

Express

Direct contract calls with pre-built templates. Fastest path for common actions.

~2s

Recipe

SQL lookup in tx.db. Pure template + parameter assembly. Zero LLM. Deterministic.

Instant

Discovery

Fetch real TXs from chain. Decode calldata. Classify. Write new recipe. Then re-run.

Learns

Transparency

You see everything before signing.

State diff — Euler USDC Deposit

Step 1/2: Approve USDC spending

Step 2/2: Deposit into Euler vault

USDC: 50,000.00 → 25,000.00 -25,000.00

eUSDC: 0.00 → 24,987.50 +24,987.50

ETH: 0.4521 → 0.4498 -0.0023

Gas: $2.30 · Flags: none

Comparison

Before x0x1 vs. after.

Manual flow (MetaMask + dApp)

1

Open protocol frontend in browser

2

No verification the frontend is legitimate

3

Approve unlimited token allowance

4

Sign opaque hex blob

5

No pre-execution simulation

6

Infinite approval remains active indefinitely

6 steps. No verification. Infinite approval left behind.

x0x1 pipeline

1

"Deposit 25k USDC into Euler"

2

Recipe lookup + exact-amount approval built

3

Full state diff on Anvil fork shown

4

Sign on air-gapped device with decoded TX

5

Post-sign verification before broadcast

6

Approval scoped to exact amount, auto-tracked

One sentence in. Verified calldata out. Approval cleaned up.

Resilience

Self-healing. Infinite retry.

TX reverts on fork. Pipeline fetches working TXs from chain, diffs calldata, patches the recipe. Permanent fix.

TX reverts on fork

Fetch successful TXs from Etherscan

Decode & compare calldata

Fix recipe in database

Re-simulate on fresh fork

30 same errors → change approach

Safety

Code-enforced. Not suggestions.

BLOCK — pipeline halts

SEND_ALL_IMPLICIT

No explicit "all" in intent

UNVERIFIED_CONTRACT

No verified source code

APPROVAL_MAX

Infinite approval blocked

HEALTH_FACTOR

HF would drop below 1.5

BALANCE_LOW

Insufficient for amount + gas

FLAG — warn at approval

LARGE_AMOUNT

> 50% of wallet balance

HIGH_GAS

> $50 L1, > $5 L2

DUPLICATE_TX

Same action within 24h

TRANSFER_TO_CONTRACT

Destination is contract, not EOA