[FEAT] Implement Standalone Language Server Protocol (LSP) Service

[mijinummi]

Labels: high-difficulty, lsp, backend, typescript
Difficulty: High
Module: apps/lsp-server/

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🧠 Concept

Build a standalone Language Server Protocol (LSP) daemon in TypeScript that communicates with any LSP-compliant editor (Neovim, VS Code, JetBrains, Sublime).

⚠️ Problem

Building editor extensions individually for every IDE is inefficient; an LSP server brings GasGuard features to all developer environments simultaneously.

📁 Implementation Scope

• apps/lsp-server/src/server.ts
• apps/lsp-server/src/handlers/text-document.ts

🛠️ Requirements

1. Implement standard LSP specification (vscode-languageserver/node).
2. Listen for textDocument/didOpen, textDocument/didChange, and textDocument/didSave events.
3. Return diagnostic array payloads and code action refactor proposals.

🎯 Acceptance Criteria

• LSP server communicates successfully over stdio/IPC with test editor clients.
• Real-time diagnostic updates are delivered within $<100\text{ms}$ of typing pauses.

[Sughter99]

@Sughter99 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Can this be assigned to me

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Sughter99 to this issue.

[funds0033-cmyk]

@funds0033-cmyk has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Pls will like to work on this I will deliver a highly recommended solution to the request with a well tested code for easy merging pls kindly assign

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[usmanimamu17-create]

@usmanimamu17-create has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello, can I take this issue please? Thank you.

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[drips-wave]

Congratulations, @usmanimamu17-create! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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