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Kayos b9124ee5d9 feat(wallet): reference-script + extras on payment outputs 
Adds Babbage/Conway-era reference-script attachment to wallet_send
and wallet_send_unsigned. The output can now carry any combination
of {native assets, inline datum, reference script}.

Why: deploying Plutus validators / minting policies as on-chain
reference UTxOs is the standard Cardano dApp pattern (Agora, Liqwid,
SundaeSwap all do this). Without it every spend or mint that uses
a script has to inline-witness the full CBOR — kilobytes per tx and
quadratic with tx size. Reference scripts let downstream txs witness
via `read_only_input` for ~32 bytes overhead.

API surface:

aldabra-core:
- new `ReferenceScriptSpec<'a> { kind: ScriptKind, cbor: &'a [u8] }`
- `ScriptKind` re-exported from pallas_txbuilder (PlutusV1/V2/V3/Native)
- new `build_signed_payment_extras(...)` and
  `build_unsigned_payment_extras(...)` — supersets of the existing
  `_with_assets` functions; take both `to_inline_datum_cbor` and
  `to_reference_script` Options
- existing `_with_assets` functions kept as thin wrappers that pass
  None for ref script — backwards compatible
- internal `output_with_assets`, `prepare_payment`, and
  `build_staging_with_fee` thread the new ref-script Option through

aldabra-mcp:
- `SendArgs` and `UnsignedSendArgs` gain
  `reference_script_cbor_hex: Option<String>` and
  `reference_script_kind: Option<String>`
- Both must be set or both omitted; mismatched returns a clean error
- `parse_script_kind` helper — case-insensitive, accepts
  PlutusV1/V2/V3/Native (plus shortcut V1/V2/V3)

Reference scripts are intentionally never attached to change outputs.
The change goes back to the wallet's own address, where a script
attachment would lock value into a publicized script that we'd then
have to spend BACK out — pointless. Ref-script attachment is only
on the recipient (`to`) output.

This unblocks Track B-fast step 3 of the preprod DAO bringup —
deploying the 11 Agora script bytecodes (governor / stakes /
proposal / treasury / mutate / noOp / treasuryWithdrawal validators
+ GST / StakeST / ProposalST / GAT minting policies) as reference
UTxOs against Kayos's preprod wallet.

No new tests in this commit — Phase 2 (Plutus-policy mint with
custom output) lands in a follow-up that will exercise this path
end-to-end against a real chain submit on preprod.
2026-05-07 06:17:07 -07:00
.cargo build: strip Gitea token from pallas patch URLs + add cargo config 2026-05-06 07:45:37 -07:00
crates feat(wallet): reference-script + extras on payment outputs 2026-05-07 06:17:07 -07:00
docs rename: sulkta-wallet → aldabra (per Cobb 2026-05-04) 2026-05-04 10:11:23 -07:00
.dockerignore phase 1: full read path — bip39 + cip-3 + cip-1852 + koios + age-mnemonic + rmcp 2026-05-04 11:09:00 -07:00
.gitignore phase 1 scaffold: cargo workspace + 3 crates + roadmap + architecture 2026-05-04 10:02:32 -07:00
Cargo.lock fix(dao): audit punch list — H-1 to H-4 + M-2 + pallas bump 2026-05-06 08:06:44 -07:00
Cargo.toml build: switch aldabra-pallas patch URLs to SSH 2026-05-06 07:55:32 -07:00
Dockerfile build(docker): mount git credentials as buildkit secret for pallas SSH→HTTP fetch 2026-05-06 13:45:55 -07:00
LICENSE phase 1 scaffold: cargo workspace + 3 crates + roadmap + architecture 2026-05-04 10:02:32 -07:00
README.md rename: sulkta-wallet → aldabra (per Cobb 2026-05-04) 2026-05-04 10:11:23 -07:00
ROADMAP.md rename: sulkta-wallet → aldabra (per Cobb 2026-05-04) 2026-05-04 10:11:23 -07:00

README.md

aldabra

Rust-native Cardano lite wallet with an MCP-server interface — built for LLM-first usage (send, receive, mint, Plutus interaction).

Status: Phase 1 scaffold (2026-05-04). Compiles, structure in place, real wallet primitives still landing. See ROADMAP.md.

Why

The existing Cardano MCP servers are either read-only doc gateways (Jimmyh-world/Cardano_MCP) or built on Blockfrost (web3-mcp) which is a centralized API we deliberately don't depend on. Sulkta runs its own Koios + Ogmios endpoints on Rackham; we want a wallet that talks directly to those.

Also: it's the first Sulkta Rust project — useful as a workout for crafting-table's Rust toolchain (per Sulkta-Coop/lucy-infra spec-crafting-table.md).

Architecture

Three crates in a Cargo workspace:

Crate Responsibility
aldabra-core Pure crypto + types. Mnemonic → root key (CIP-3), root → payment + stake key (CIP-1852), address construction, signing. No I/O, no network. This is the security boundary.
aldabra-chain Pluggable backends for chain queries. ChainBackend trait, with Koios as the phase-1 implementation. Ogmios + submission paths in phase 2.
aldabra-mcp Binary. MCP server speaking stdio. Glues core + chain together, exposes tools to the LLM client. 
            ┌─────────────────────────────┐
LLM client  │       aldabra-mcp (bin)      │  stdio
─────────►  │   tool handlers, lifecycle  │  ────►
            └──────────┬──────────────────┘
                       │
              ┌────────┴────────┐
              ▼                 ▼
       ┌──────────────┐  ┌──────────────┐
       │ aldabra-core  │  │ aldabra-chain │
       │ keys, sign   │  │ Koios/Ogmios │
       └──────────────┘  └──────────────┘

MCP tools (target)

Phase 1:

  • wallet.address — derived base address at account 0, index 0
  • wallet.balance — ADA + native asset balance at the wallet's address
  • wallet.utxos — list UTXOs

Phase 2:

  • wallet.send — build, sign, submit a payment (ADA or native)
  • wallet.tx_status — poll a submitted tx hash

Phase 3:

  • wallet.mint — mint a CIP-25 / CIP-68 native asset
  • wallet.policy.create — generate a policy script (timelock, multisig)

Phase 4:

  • wallet.script.attach — attach an inline datum + reference script
  • wallet.script.spend — spend a Plutus-locked UTXO with redeemer
  • wallet.stake.delegate — delegate to a pool

Build

# Local (requires rustc 1.75+)
cargo build --release

# Through crafting-table (preferred — validates the toolchain there)
crafting-table build aldabra

Run

# Direct invocation (smoke test only — does nothing useful in phase 1)
./target/release/aldabra

# As an MCP server registered with Claude Code:
# add to ~/.claude.json:
#   "aldabra": {
#     "command": "/path/to/aldabra",
#     "env": {
#       "ALDABRA_DATA": "/mnt/cache/appdata/aldabra"
#     }
#   }

Security model

  • Mnemonic source: interactive bootstrap on first run, paste once, encrypted at rest with age. Never written to disk in plaintext.
  • Derived keys: in-memory only, ZeroizeOnDrop on every container.
  • Network exposure: stdio MCP transport — never opens a TCP socket. Only the spawning client process can reach it.
  • Multi-network: mainnet by default, but --network preview / --network preprod for testing without real ADA.

See also