Trustabl Vscode MCP Server

Trustabl for VS Code and Cursor

Runs the Trustabl agent-reliability scanner on save and surfaces findings as native diagnostics (Problems panel), in a Trustabl activity-bar sidebar (Findings / Scores / Dependencies / Vulnerabilities / Help & Feedback, with per-surface readiness scores), and in a webview detail panel when you click a finding or a vulnerability.

The Dependencies view is the repo's bill of materials (every declared dependency, grouped by ecosystem) and is populated on every scan. The Vulnerabilities view lists known CVEs matched against those dependencies and is populated only when a scan runs with the OSV vulnerability check (see trustabl.vulnScan and the Scan with Vulnerabilities command below).

The extension does not bundle a scanner, import SARIF, or run a language server — it shells out to the trustabl CLI and parses its JSON report.

Install

VS Code

Search Trustabl in the Extensions view, or install it from the Marketplace listing.

Cursor, Windsurf, VSCodium

These read the Open VSX registry, where the extension is not published yet, so install from a .vsix instead. The steps below also cover installing a development build into any of these editors, VS Code included.

1. Build the VSIX

Requires Node.js 18+.

npm ci            # install dev dependencies (first time only)
npm run package   # bundles, then writes trustabl-<version>.vsix to the repo root

npm run package runs vsce package (after npm run bundle) and writes trustabl-<version>.vsix to the repo root — e.g. trustabl-0.1.0.vsix.

2. Install the VSIX

VS Code, Cursor, Windsurf, VSCodium, and other VS Code-compatible editors all accept a VSIX two ways:

• From the UI — open the Extensions view (Ctrl/Cmd+Shift+X), click the … menu at the top of the panel, choose Install from VSIX…, and pick the file.

• From the editor's CLI — each fork ships its own command:

  code     --install-extension trustabl-0.1.0.vsix   # VS Code
  cursor   --install-extension trustabl-0.1.0.vsix   # Cursor
  windsurf --install-extension trustabl-0.1.0.vsix   # Windsurf
  codium   --install-extension trustabl-0.1.0.vsix   # VSCodium
  

  Pass --force to replace an already-installed copy. If the command isn't found, install it from the editor's command palette (e.g. Shell Command: Install 'code' command in PATH, or the cursor/windsurf equivalent), then reopen your terminal.

Reload the window afterwards (Developer: Reload Window). You don't need to install the trustabl CLI separately — the extension resolves or downloads a compatible binary on first scan (see How it works).

How it works

On save of a relevant file (Python/TypeScript source, .claude/agents/*.md, or a dependency manifest) the extension runs trustabl scan --format json over your workspace and renders the results. It can also scan automatically when a workspace is opened (trustabl.scanOnOpen). The first scan of a session refreshes the rule packs; later scans reuse the cached rules.

The trustabl binary is resolved in this order: the trustabl.path setting if set; otherwise a compatible trustabl already on your PATH (Homebrew/Scoop/Docker); otherwise a copy the extension downloads and caches on first run from GitHub Releases, verified against the published checksums.txt (sha256) before it is used.

Settings

See the Trustabl section in Settings:

• trustabl.scanOnSave — scan when a relevant file is saved (default true).
• trustabl.scanOnOpen — scan the workspace automatically when it is opened (default true).
• trustabl.groupBy — how to group findings in the Trustabl view (severity | file | scope | rule; default severity).
• trustabl.detectors — comma-separated detector categories (claude_sdk, openai_sdk, google_adk, mcp, langchain, crewai, pydantic_ai, vercel_ai, autogen). Empty = all.
• trustabl.minSeverity — hide findings below this severity (info | low | medium | high | critical).
• trustabl.strict — pass --strict (affects the CLI exit code only).
• trustabl.vulnScan — match dependencies against the OSV database on every scan (default false; does network I/O and downloads the OSV database on first use). Leave off and use the Scan with Vulnerabilities command for one-off checks.
• trustabl.scanTimeoutSeconds — kill a scan after this many seconds.
• trustabl.rulesRepo / trustabl.rulesRef — advanced rule-source overrides.
• trustabl.path — explicit path to the trustabl binary.

Commands

• Trustabl: Scan Workspace — run a scan now (uses cached rules).
• Trustabl: Refresh Rules and Scan — fetch the latest rules, then scan.
• Trustabl: Scan with Vulnerabilities — scan and match dependencies against the OSV database (downloads it on first use), populating the Vulnerabilities view. Also available from that view's title bar.
• Trustabl: Group Findings By… — change how the Findings view is grouped (also available from the view title bar).

License

Apache-2.0.