agnix-lsp

Language Server Protocol implementation for agnix.

Provides real-time validation of agent configuration files in editors that support LSP.

Installation

cargo install agnix-lsp

Or build from the workspace root:

cargo build --release -p agnix-lsp

The binary will be at target/release/agnix-lsp.

Usage

The server communicates over stdin/stdout using the LSP protocol:

agnix-lsp

Editor Configuration

VS Code

A dedicated VS Code extension is available at editors/vscode. See editors/vscode/README.md for installation and usage.

Neovim (with nvim-lspconfig)

local lspconfig = require('lspconfig')
local configs = require('lspconfig.configs')

if not configs.agnix then
  configs.agnix = {
    default_config = {
      cmd = { 'agnix-lsp' },
      filetypes = { 'markdown', 'json' },
      root_dir = function(fname)
        return lspconfig.util.find_git_ancestor(fname)
      end,
      settings = {},
    },
  }
end

lspconfig.agnix.setup{}

Helix

Add to ~/.config/helix/languages.toml:

[[language]]
name = "markdown"
language-servers = ["agnix-lsp"]

[language-server.agnix-lsp]
command = "agnix-lsp"

Zed

Install the agnix extension from the Zed Extensions panel:

1. Open Zed > Extensions (cmd+shift+x)
2. Search for "agnix"
3. Click Install

The extension automatically downloads the agnix-lsp binary. See editors/zed/README.md for details.

Features

• Real-time diagnostics as you type (via textDocument/didChange)

• Real-time diagnostics on file open and save

• Supports all agnix validation rules (342 rules)

• Project-level validation for cross-file rules (AGM-006, XP-004/005/006, VER-001)

• Maps diagnostic severity levels (Error, Warning, Info)

• Rule codes shown in diagnostic messages

• Quick-fix code actions for auto-fixable diagnostics

• Hover documentation for frontmatter fields (name, version, model, etc.)

• Context-aware completions for frontmatter keys, values, and snippets

Supported File Types

The LSP server validates the same file types as the CLI:

• SKILL.md - Agent skill definitions
• CLAUDE.md, CLAUDE.local.md, AGENTS.md, AGENTS.local.md, AGENTS.override.md - Memory/instruction files
• .claude/settings.json, .claude/settings.local.json - Hook configurations
• plugin.json - Plugin manifests
• *.mcp.json, mcp.json, mcp-*.json - MCP tool configurations
• .github/copilot-instructions.md, .github/instructions/*.instructions.md, .github/agents/*.agent.md, .github/prompts/*.prompt.md, .github/hooks/hooks.json, .github/workflows/copilot-setup-steps.yml - GitHub Copilot configuration
• .cursor/rules/*.mdc, .cursorrules - Cursor project rules

Development

Run tests:

cargo test -p agnix-lsp

Build in debug mode:

cargo build -p agnix-lsp

Architecture

agnix-lsp/
├── src/
│   ├── lib.rs              # Public API and server setup
│   ├── main.rs             # Binary entry point
│   ├── backend.rs          # LSP backend facade and LanguageServer wiring
│   ├── backend/
│   │   ├── events.rs       # did_open/did_change/did_save/did_close handlers
│   │   ├── helpers.rs      # Diagnostics and path normalization helpers
│   │   ├── revalidation.rs # Config and project revalidation orchestration
│   │   └── tests.rs        # Backend unit and regression tests
│   ├── diagnostic_mapper.rs # Converts agnix diagnostics to LSP format
│   ├── code_actions.rs      # Quick-fix code action generation
│   ├── completion_provider.rs # Context-aware frontmatter completions
│   ├── hover_provider.rs    # Hover documentation for frontmatter fields
│   ├── locale.rs            # Localization support
│   ├── position.rs          # Byte offset to LSP position conversion
│   └── vscode_config.rs     # VS Code settings integration
└── tests/
    └── lsp_integration.rs  # Integration tests

License

MIT OR Apache-2.0