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Kayos 9556b7812d fix(dao): audit H-2 + H-5 + H-6 (per memory/audit-aldabra-dao-2026-05-05) 
H-2: drop ExUnits to 5M/2G for spend, 2M/1G for mint
  Was 14M/10G each = per-tx Conway cap. With 3 plutus contracts running
  (governor spend + stake spend + ProposalST mint), total claim 42M/30G
  exceeds per-tx limit and node rejects pre-phase-2.

H-5: propagate malformed wallet asset keys instead of silently dropping
  Previous filter_map silently dropped any key < 56 chars. Could let a
  corrupt Koios response burn assets on submit. Now returns explicit
  Err with the offending UTxO + key.

H-6: tighten StakeST detection to asset_name == stake_validator_hash
  Per Stake/Scripts.hs:188-190 (pscriptHashToTokenName), StakeST
  asset_name is the stake validator's script hash. Previous code took
  "first non-gov-token asset" which would silently pick a wrong policy
  if a stake UTxO accidentally carried a junk NFT. Regression test
  h6_junk_token_does_not_pollute_stake_st_detection added.

3 of 7 audit punch-list items closed. C-1 + C-2 + C-3 next.
2026-05-05 20:52:22 -07:00
crates fix(dao): audit H-2 + H-5 + H-6 (per memory/audit-aldabra-dao-2026-05-05) 2026-05-05 20:52:22 -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 audit fixes: all 9 findings resolved + wallet generation tooling 2026-05-04 14:52:08 -07:00
Cargo.toml feat(dao): scaffold aldabra-dao crate (Phase 1 reads) 2026-05-05 13:40:12 -07:00
Dockerfile phase 1: full read path — bip39 + cip-3 + cip-1852 + koios + age-mnemonic + rmcp 2026-05-04 11:09:00 -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