BSL Language Server — Claude Code Plugin

Claude Code plugin that integrates BSL Language Server as an LSP server for 1C:Enterprise (BSL) and OneScript (OS) files.

Features

Provides Claude Code with code intelligence for .bsl and .os files via Language Server Protocol:

Diagnostics (code quality checks)
Go to definition
Find references
Hover information
Code actions and quick fixes
Symbol navigation
Formatting
Auto-update — checks for new releases on session start

Installation

Via Claude Code CLI

copilot /plugin install 1c-syntax/claude-code-bsl-lsp

Manual

Clone this repository and register it as a local plugin:

git clone https://github.com/1c-syntax/claude-code-bsl-lsp.git
copilot /plugin add /path/to/claude-code-bsl-lsp

How It Works

On each session start the plugin:

Checks if BSL Language Server is already installed
Queries the GitHub API for the latest release (throttled to once per 8 minutes)
Downloads and installs the native binary if a newer version is available
Cleans up old versions automatically

Platform-Specific Binary Paths

Platform	Archive	Binary path after extraction
Linux	`bsl-language-server_nix.zip`	`bsl-language-server/bin/bsl-language-server`
macOS	`bsl-language-server_mac.zip`	`bsl-language-server.app/Contents/MacOS/bsl-language-server`
Windows	`bsl-language-server_win.zip`	`bsl-language-server/bsl-language-server.exe`

Install Locations

Platform	Data directory	Symlink / wrapper
Linux / macOS	`~/.local/share/bsl-language-server/`	`~/.local/bin/bsl-language-server`
Windows	`%LOCALAPPDATA%\Programs\bsl-language-server\`	— (add binary dir to PATH)

Prerequisites

The plugin automatically downloads BSL Language Server on first session start. If automatic installation fails, install manually:

Download the latest release for your platform from GitHub Releases and place the bsl-language-server binary in your PATH.

Windows Note

On Windows, the plugin works via both:

Git Bash (comes with Git for Windows) — used by default
PowerShell 6+ — fallback if bash is not available

Configuration

BSL Language Server can be configured via .bsl-language-server.json in your project root. See the BSL Language Server documentation for available options.

Supported File Types

Extension	Language
`.bsl`	1C:Enterprise (BSL)
`.os`	OneScript