Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
mcpls
Overview
Description from the maker (original English)
Universal MCP to LSP bridge exposing language server code intelligence as MCP tools
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- The registry lists no key to fill in.
The maker has not listed install details in the registry. See the maker’s README below.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account bug-ops, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Otheri
- More stars than 0% of the other 32417 servers in this category
- Published to the registry more recently than 87% of the other 32417 servers in this category
- Basic checks equal to or better than 100% of the other 32417 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is mcpls safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.9.1) reached the registry 4 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Rust on your computer.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, FOGA node
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated yesterday
Install
FOGA node
by garyyang-finchip
A Finch OG Agent cell as an MCP server: read the world, dry-run and take ERC-8414 tenders by policy.
Computer or cloudUpdated today
Install
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
mcpls
Give your AI coding agent a compiler's understanding of your code.
mcpls is a bridge between the Model Context Protocol (MCP) and the Language Server Protocol (LSP). It runs the language servers for your project (rust-analyzer, pyright, gopls, and others) and exposes their type information, references, diagnostics and refactoring as 31 MCP tools, so an AI client reasons about code the way an IDE does.
flowchart LRC["AI client"] <-->|MCP| M["mcpls"] <-->|LSP| S["rust-analyzer / pyright / gopls / ..."]
Documentation
The full documentation is the mcpls book: [https://bug-ops.github.io/mcpls/](https://bug-ops.github.io/mcpls/)
| Topic | Chapter |
|---|---|
| Install and first run | Installation |
| Connect Claude Code or another client | Connect an AI Client |
| Configure language servers | Configuration |
| All 31 tools | Tools Overview |
| Something does not work | Troubleshooting |
| HTTP transport and allowlists | Transports |
| Security model and untrusted workspaces | Security and Trust |
| Every flag and config key | Reference |
Installation
Linux and macOS:
curl -fsSL https://raw.githubusercontent.com/bug-ops/mcpls/main/scripts/install.sh | shWindows (PowerShell):
irm https://raw.githubusercontent.com/bug-ops/mcpls/main/scripts/install.ps1 | iexOr with Cargo:
cargo install mcplsPrebuilt archives for Linux, macOS and Windows (x86_64 and aarch64) with SHA256 checksums and build-provenance attestations are on GitHub Releases.
mcpls is also listed in the official MCP Registry as io.github.bug-ops/mcpls (cargo package, stdio transport), so registry-aware clients can discover it there. The listing installs the same crate as cargo install mcpls.
You also need at least one language server, for example rustup component add rust-analyzer. See Installation for other methods and servers.
Quick start
Register mcpls with Claude Code:
claude mcp add --scope user mcpls -- mcplsThen ask about your code:
You: What is the return type of process_request?Claude: [get_hover] It returns Result .
You: Find everywhere ApiError::Timeout is handled. Claude: [get_references] Found 4 matches: src/handlers/api.rs:89, ...
Rust projects need no configuration. Other languages and clients are covered in the book.
Features
- Type information and documentation at any position
- Cross-references, definitions, implementations across the whole workspace
- Real diagnostics from the compiler, not guesses
- Rename and code-action edits returned for the client to apply
- Call and type hierarchies, formatting, inlay hints, selection and folding ranges
- Workspace symbol search across every language server of a polyglot project, with each symbol tagged by its server
- Address code by symbol name as well as by position, and restart language servers on demand
- Several language servers at once, started concurrently and stopped with mcpls, with graceful degradation when one fails
- stdio by default, optional HTTP transport with Host and Origin allowlists and resource subscriptions
- Untrusted-workspace mode for analyzing code you do not trust
- Single Rust binary, no runtime dependencies, no
unsafecode; release archives carry build-provenance attestations
Security
Language servers run code that comes with the workspace, and mcpls does not sandbox them. Read SECURITY.md and the Security and Trust chapter before pointing mcpls at code you did not write.
Agent skill
skills/mcpls is a packaged Agent Skill that teaches an AI coding agent to install, configure and run mcpls.
Development
cargo buildcargo nextest run --workspace --all-features
Requires Rust 1.99 or later (edition 2024). The book lives in book/ and is built with mdBook. See CONTRIBUTING.md.
Community
Participation is governed by the Code of Conduct. Accessibility of the output and documentation is described in ACCESSIBILITY.md.
License
Dual-licensed under Apache 2.0 or MIT at your option.