The Solana VS Code Extension is a free, open source add-on for Visual Studio Code that helps developers building Solana programs catch security problems while they write code. It is aimed at Rust developers who want static analysis and fuzzing feedback without switching to a separate tool.
The extension adds built-in static analysis detectors that flag common vulnerabilities as you type, starting with checks for code that fails to verify required signers. It also visualizes which lines your Trident fuzz tests actually reach, so you can see gaps in test coverage directly beside your source. The latest release in the repository is release/1.0.2, and the code was last updated on March 15, 2026.
What Problem Does This Extension Solve?
Solana programs handle token balances, program authorities and user funds, and a single missed check can let an attacker act on an account they do not control. Many of the bugs that cause these losses are simple patterns: an account is read without confirming it signed, or a privileged instruction is callable by anyone. These issues are easy to overlook when you are focused on making a feature work.
A security scanner that runs inside the editor closes the gap between writing code and learning about a flaw. Instead of waiting for a pull request review or an external audit to surface the problem, you see the warning on the line where the mistake was made. That shortens the feedback loop and makes it more likely that issues are fixed while the context is still fresh.
How Fuzz Coverage Helps Find Untested Logic
Fuzz testing sends large numbers of generated inputs into a program to find crashes, panics and unexpected state transitions. The weakness of fuzzing is that it only tests what it reaches. A fuzzer can run for hours and still never exercise an error branch that matters.
Coverage visualization answers the question of what was actually executed. When lines of a program are marked as covered or uncovered, you can see whether a harness reaches the instruction handler you care about, or whether a rarely used path has never been tried. Developers often use this view to decide where to write a new test input rather than simply running the fuzzer longer.
Who Is This Extension For?
The extension is most useful for developers who build Solana programs in Rust and already use Visual Studio Code as their main editor. Teams that maintain Anchor-style projects with a Trident testing setup will find the workflow familiar, since the extension expects a trident-tests folder in the workspace.
It is also relevant for developers preparing a program for review. Running the static detectors and inspecting coverage before an external audit can remove obvious issues and let auditors spend time on deeper design questions. It is not a replacement for a professional audit, but it fits well as a routine check during development.
Typical Workflow in Practice
A common day looks like this: you add a new instruction that transfers tokens on behalf of a user. The static detectors flag a possible missing signer check, and you add it before moving on. Later you run your Trident fuzzers and open the coverage view, which shows that the error branch for an invalid authority is never reached.
You then extend the harness to generate that case, rerun the fuzzer and watch the coverage update. Each step happens in one window, so the cycle of writing code, finding gaps and fixing them stays short. Saving the coverage JSON from a CI run lets the team review the same results later without repeating the build.
Key features
Built-in Missing Signer Detection
Code Coverage Visualization
Static Coverage Report Loading
Live Updates During Fuzzing
Automatic Workspace Detection
Standard Coverage Format
Supported coins
The documentation refers to Solana (SOL) as the network the extension is designed for. It is intended for Solana program development rather than for managing wallets or assets.
How to install Solana VS Code Extension on Windows
- 1
Download the Extension or Source Code
Get the extension from the official project page or from the Visual Studio Code marketplace listing if one is available. You can also obtain the source from the GitHub repository and build it yourself. Download only from official sources.
- 2
Install in Visual Studio Code
Open Visual Studio Code, go to the Extensions view, and install the package from a VSIX file or the marketplace. Restart the editor so the extension loads. If you built from source, follow the repository instructions to package and install the result.
- 3
Prepare Your Project
Open your Solana project as a workspace folder. Make sure a trident-tests directory exists, since this is what activates the extension. Install Rust and the cargo llvm-cov tool if you plan to generate coverage reports.
-
Verify the Download
If the project publishes SHA-256 checksums or signatures for release files, compare them with your downloaded file before installing. This step confirms the file was not altered in transit.
System requirements
- Visual Studio Code, a current version
- A Windows build of the extension, which the project indicates is likely supported; check the releases page for the exact package
- Rust toolchain and cargo llvm-cov if you want to generate JSON coverage reports
- A Solana project with a trident-tests directory for the extension to activate
How to use Solana VS Code Extension
Once the extension is installed and your workspace contains a trident-tests folder, the editor integrates the security checks and coverage tools into your normal work. The steps below cover the most common path from opening a project to reviewing coverage.
- Open your Solana program folder in Visual Studio Code so that trident-tests is at the root of the workspace.
- Write or edit your program code. The static detectors run on your source and display warnings in the editor, including the missing signer check.
- Fix the flagged lines, for example by adding a check that the required account is a signer before the instruction proceeds.
- Run your Trident fuzzers to generate test activity. To produce a coverage report, use cargo llvm-cov to output JSON.
- Open the command palette and run solana: Show Code Coverage to overlay the results on your source files.
- Review uncovered lines and decide whether to extend your fuzz harness or write a targeted test.
- When you finish, run solana: Close Code Coverage to clear the overlay from the editor.
- If you need to review a saved report, load the existing coverage file rather than rerunning the tests.
Pros & cons
- Free and open source, with the code available on GitHub
- Brings static security checks and coverage into the editor
- Highlights missing signer checks, a common Solana authorization issue
- Shows which lines Trident fuzzers actually reach
- Supports real-time coverage updates during fuzzing
- Activates automatically when a trident-tests directory is present
- Uses the widely known cargo llvm-cov JSON format
- Focused on Solana and Trident; not useful for other chains without adaptation
- Currently centers on one detector, so it does not replace a full audit toolset
- Requires a Rust toolchain and cargo llvm-cov for coverage generation
- Windows support is indicated as likely rather than confirmed, so verify the build
- Depends on a specific directory layout to activate
Is Solana VS Code Extension safe?
This extension runs inside your development environment and reads your source code and test output, so treat installation like any other developer tool. Download it only from the official GitHub repository or the verified marketplace listing. Compare the SHA-256 checksum or signature of the file with the value published by the maintainers before installing. Because the extension analyzes code rather than handling keys or funds, the main risk is a tampered package, which checksum verification addresses. Keep Visual Studio Code and your Rust toolchain updated, and review the extension's permissions in the editor before granting them.
- Official source only. Download from github.com/Ackee-Blockchain/solana-vscode. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
Compared with general-purpose static analyzers such as Slither or Aderyn, which focus on Solidity or cover a broad set of Rust patterns from the command line, this extension is tightly integrated with the Solana development workflow and the Trident fuzzer. Its distinctive feature is coverage visualization inside the editor, which makes fuzzing results easier to act on. Fuzzing tools such as Honggfuzz RS find crashes in Rust code generally, but they do not show coverage on your source lines the same way. For Ethereum-based work, Medusa and Echidna serve a similar fuzzing role, and Halmos addresses symbolic testing. This extension is the closest fit if your program is written for Solana and your team uses Trident.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- release/1.0.2
- Last update
- 15 Mar 2026
- Windows support
- Likely (builds for Windows; check releases)
- Source code
- github.com/Ackee-Blockchain/solana-vscode
Frequently asked questions
Yes. The extension is listed as free and open source, and its source code is available on GitHub. You can read the code, build it yourself, or install the packaged release without paying a fee.
The project indicates that Windows builds are likely supported, but it does not confirm this for every release. Check the releases page in the repository for the build that matches your system and follow the install steps there.
The current detector checks whether code fails to verify required signers, which is a common cause of authorization bugs in Solana programs. The extension is best treated as one layer of review rather than a complete security audit.
The coverage features depend on Trident fuzzers and the trident-tests directory. The extension activates only when that directory is present in your workspace, so a Trident setup is needed for the full set of features.
Coverage reports are produced with cargo llvm-cov, which outputs JSON. Run your tests with coverage enabled, save the JSON file where the extension expects it, then open the coverage view from the command palette.
Yes. The extension can load an existing coverage report file. This is useful for reviewing a CI run or sharing results with a colleague who does not want to rebuild the entire project.
The extension is built for Solana programs. The documentation mentions Solana (SOL) as the network it targets, so it is not designed for Ethereum or other chains without significant changes.
Verdict
The Solana VS Code Extension is a practical choice for Rust developers who write Solana programs and use Trident for fuzz testing. It brings a missing signer check and fuzz coverage visualization into the editor, shortening the time between writing a flaw and seeing it. It works best as a routine development check alongside fuzzing and professional review, not as a substitute for either. Teams already using Trident and Visual Studio Code will get the most value from it.