How do I install the Sui Build skill?

Run npx skillmds@latest add mystenlabs/sui-build in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Sui Build safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Sui Build?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Sui Build free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Sui Build?

MystenLabs (@mystenlabs) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Sui Build by mystenlabs — Agent Skill

Name: Sui Build
Author: MystenLabs

File contents

Building Packages

MCP tool: When available in your environment, also query the Sui documentation MCP server (https://sui.mcp.kapa.ai) for up-to-date answers. Use it for verification and for details not covered by these reference files.

Source constraint: All information sourced exclusively from docs.sui.io and move-book.com.

Building

sui move build

This compiles all modules, validates types, enforces resource safety, and produces bytecode. Fix any errors before proceeding.

For the canonical hello-world repository, run build commands from sui-stack-hello-world/move/hello-world.

`--build-env` flag

When a package has an [environments] section in Move.toml with multiple networks, use --build-env to target a specific environment:

sui move build --build-env testnet
sui move build --build-env mainnet

This resolves dependencies and package addresses for the specified environment. Without --build-env, the build uses the default environment or may fail with "Could not determine the correct dependencies" if multiple environments are defined and no default is set.

The --build-env flag also applies to sui move test:

sui move test --build-env testnet

Testing

sui move test

Key testing modules

sui::test_scenario — Multi-transaction, multi-sender test scenarios. Simulates realistic transaction flows with begin, next_tx, and end.
std::unit_test — Assertion macros for unit tests (assert_eq!, assert_ne!).

Code coverage

Track which lines your tests exercise:

sui move test --coverage

View coverage results for a specific module:

sui move coverage source --module <name>

Move Analyzer

Install via suiup:

suiup install move-analyzer

Then install the Move Analyzer extension in VS Code. It provides code completion, go-to-definition, inline diagnostics, and hover documentation. It activates automatically for .move files — no additional configuration needed.

Debugging

Move Trace Debugger: Step-through debugger for Move execution traces with variable inspection.
sui replay: Locally re-execute any past onchain transaction and compare effects. Useful for diagnosing production issues.
std::debug::print: Print values during test execution.

---name: sui-builddescription: Use this skill when the user needs to build Move code, or when when the user asks about sui move build.---# Building Packages> **MCP tool:** When available in your environment, also query the Sui documentation MCP server (`https://sui.mcp.kapa.ai`) for up-to-date answers. Use it for verification and for details not covered by these reference files.> **Source constraint:** All information sourced exclusively from [docs.sui.io](https://docs.sui.io) and [move-book.com](https://move-book.com).## Building```bashsui move build```This compiles all modules, validates types, enforces resource safety, and produces bytecode. Fix any errors before proceeding.For the canonical hello-world repository, run build commands from `sui-stack-hello-world/move/hello-world`.### `--build-env` flagWhen a package has an `[environments]` section in `Move.toml` with multiple networks, use `--build-env` to target a specific environment:```bashsui move build --build-env testnetsui move build --build-env mainnet```This resolves dependencies and package addresses for the specified environment. Without `--build-env`, the build uses the default environment or may fail with "Could not determine the correct dependencies" if multiple environments are defined and no default is set.The `--build-env` flag also applies to `sui move test`:```bashsui move test --build-env testnet```## Testing```bashsui move test```### Key testing modules- **`sui::test_scenario`** — Multi-transaction, multi-sender test scenarios. Simulates realistic transaction flows with `begin`, `next_tx`, and `end`.- **`std::unit_test`** — Assertion macros for unit tests (`assert_eq!`, `assert_ne!`).### Code coverageTrack which lines your tests exercise:```bashsui move test --coverage```View coverage results for a specific module:```bashsui move coverage source --module <name>```### Move AnalyzerInstall via suiup:```bashsuiup install move-analyzer```Then install the **Move Analyzer** extension in VS Code. It provides code completion, go-to-definition, inline diagnostics, and hover documentation. It activates automatically for `.move` files — no additional configuration needed.### Debugging- **Move Trace Debugger:** Step-through debugger for Move execution traces with variable inspection.- **`sui replay`:** Locally re-execute any past onchain transaction and compare effects. Useful for diagnosing production issues.- **`std::debug::print`:** Print values during test execution.

Frequently asked questions

Sui Build