Ricardo Guilherme Schmidt f8cbcc6956 fix(ata): lock down ATA::Transfer recipient contract
Enforce at the ATA layer that the recipient token holding is already
initialized, owned by the same token program as the sender ATA, decodes
to a valid `TokenHolding`, and points at the same token definition as
the sender. Align the core instruction doc and guest wrapper doc with
that contract, and cover the boundary with unit tests (default,
foreign-owned, malformed, mismatched-definition recipients, plus the
missing-owner-auth and happy paths) and end-to-end integration tests
(default and mismatched-definition recipients).

Without this, the downstream `token::Transfer` default-recipient
`Claim::Authorized` path was reachable through ATA, so integrators had
to reverse-engineer recipient semantics from token/runtime internals.
2026-05-13 13:32:09 +02:00
2026-05-12 08:46:36 +02:00
2026-03-17 10:18:51 +01:00

lez-programs

Essential programs for the Logos Execution Zone (LEZ) — a zkVM-based execution environment built on RISC Zero. Programs run inside the RISC Zero zkVM (riscv32im-risc0-zkvm-elf target) and interact with the LEZ runtime via the nssa_core library.

Prerequisites

  • Rust — install via rustup. The pinned toolchain version is 1.91.1 (set in rust-toolchain.toml).

  • RISC Zero toolchain — required to build guest ZK binaries:

    cargo install cargo-risczero
    cargo risczero install
    
  • SPEL toolchain — provides spel and wallet CLI tools. Install from logos-co/spel.

  • LEZ — provides wallet CLI. Install from logos-blockchain/logos-execution-zone

Build & Test

# Lint the entire workspace (skips expensive guest ZK builds)
RISC0_SKIP_BUILD=1 cargo clippy --workspace --all-targets -- -D warnings

# Format check
cargo fmt --all

# Run unit tests for all programs (no zkVM, no ZK proof generation)
RISC0_DEV_MODE=1 cargo test -p token_program -p amm_program -p ata_program

# Run integration tests (dev mode skips ZK proof generation)
RISC0_DEV_MODE=1 cargo test -p integration_tests

# Run all tests
RISC0_DEV_MODE=1 cargo test --workspace

Integration tests live in integration_tests/tests/ and cover token, amm, and ata programs end-to-end through the zkVM using RISC0_DEV_MODE=1 to skip proof generation. Each test file corresponds to a program:

  • integration_tests/tests/token.rs
  • integration_tests/tests/amm.rs
  • integration_tests/tests/ata.rs

Compile Guest Binaries

The guest binaries are compiled to the riscv32im-risc0-zkvm-elf target. This requires the RISC Zero toolchain.

cargo risczero build --manifest-path <PROGRAM>/methods/guest/Cargo.toml

Binaries are output to:

<PROGRAM>/methods/guest/target/riscv32im-risc0-zkvm-elf/docker/<PROGRAM>.bin

Deployment

# Deploy a program binary to the sequencer
wallet deploy-program <path-to-binary>

# Example
wallet deploy-program token/methods/guest/target/riscv32im-risc0-zkvm-elf/docker/token.bin
wallet deploy-program amm/methods/guest/target/riscv32im-risc0-zkvm-elf/docker/amm.bin

To inspect the ProgramId of a built binary:

spel inspect <path-to-binary>

Interacting with Programs via spel

Generate an IDL

The IDL describes the program's instructions and can be used to interact with a deployed program.

Using the idl-gen crate (no external toolchain required — this is what CI uses):

cargo run -p idl-gen -- token/methods/guest/src/bin/token.rs > artifacts/token-idl.json
cargo run -p idl-gen -- amm/methods/guest/src/bin/amm.rs > artifacts/amm-idl.json
cargo run -p idl-gen -- ata/methods/guest/src/bin/ata.rs > artifacts/ata-idl.json

Using the spel CLI (requires the SPEL toolchain):

spel generate-idl token/methods/guest/src/bin/token.rs > artifacts/token-idl.json
spel generate-idl amm/methods/guest/src/bin/amm.rs > artifacts/amm-idl.json
spel generate-idl ata/methods/guest/src/bin/ata.rs > artifacts/ata-idl.json

Generated IDL files are committed under artifacts/. CI will fail if a program's IDL is missing or out of date.

Invoke Instructions

Use spel --idl <IDL> <INSTRUCTION> [ARGS...] to call a deployed program instruction:

spel --idl artifacts/token-idl.json <instruction> [args...]
spel --idl artifacts/amm-idl.json <instruction> [args...]
Description
Essential programs for the Logos Execution Zone built by Logos.
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