Move decompiler

decompile_module is the only tool that needs an external binary, and every code question can be answered without it:

• disassemble_module returns Move bytecode assembly via the GraphQL endpoint; its function_name argument returns one function.
• get_move_function returns a function’s signature and visibility.
• diff_package_upgrade diffs two versions of a package, function by function.
• analyze_package summarizes a package’s API and runs a heuristic risk scan.

Use the decompiler when you want higher-level, source-like Move output instead of bytecode.

Build the binary

The binary is Revela’s move-decompiler, built from Rust. It is not bundled in the npm package because a published tarball could only carry one platform’s build, so you compile it once yourself and point the server at it with SUI_DECOMPILER_PATH. This works the same whether you installed via npx or from source. You need a Rust toolchain (rustup.rs); the build takes a few minutes.

git clone --depth 1 https://github.com/verichains/revela_sui.git
cd revela_sui/external-crates/move
cargo build --release --bin move-decompiler
# binary lands at target/release/move-decompiler

If you already cloned this repo, npm run build:decompiler does the same clone and build and copies the result to bin/move-decompiler.

Point the server at it

Add its absolute path to your client config:

{
  "mcpServers": {
    "sui": {
      "command": "npx",
      "args": ["-y", "sui-analytics-mcp"],
      "env": {
        "SUI_DECOMPILER_PATH": "/absolute/path/to/revela_sui/external-crates/move/target/release/move-decompiler"
      }
    }
  }
}

Without SUI_DECOMPILER_PATH the server falls back to looking for move-decompiler on PATH. Prefer the absolute path: desktop clients often launch servers with a minimal environment that doesn’t include your shell’s PATH, so a binary you can run in a terminal may still be invisible to the server.

When the binary is missing

If it’s found in neither place, or SUI_DECOMPILER_PATH is set to an empty string, decompile_module returns an error naming the tools that read bytecode without it, its module listing reports decompiler_available: false, and every other tool is unaffected.