agent-lsp

MCP server for language intelligence. Give AI agents structured access to language servers: go-to-definition, find-all-references, rename, diagnostics, completions, call hierarchy, and speculative execution.

66 tools. 23 agent workflows. 30 CI-verified languages. Single Go binary.

Why

AI coding agents navigate code with grep and file reads. This wastes 5-34x more tokens than necessary and produces 92-99% false positives on symbol lookups. Language servers already have the answers; agent-lsp makes them accessible via MCP.

Install

pip install agent-lsp

Or via other channels:

brew install blackwell-systems/tap/agent-lsp    # macOS/Linux
npm install -g @blackwell-systems/agent-lsp     # npm
curl -fsSL https://raw.githubusercontent.com/blackwell-systems/agent-lsp/main/install.sh | sh

Usage

# Start with auto-detection
agent-lsp

# Explicit language server
agent-lsp go:gopls typescript:typescript-language-server,--stdio

# HTTP mode
agent-lsp --http --port 8080 go:gopls

Then configure your AI tool's MCP settings to point at agent-lsp.

What it does

66 tools covering navigation, analysis, refactoring, diagnostics, formatting, speculative execution, composite exploration, safe editing, build, test, and more
23 agent workflows (skills) that encode correct multi-step operations: rename safely, analyze blast radius, simulate edits before applying
30 CI-verified languages: Go, Python, TypeScript, Rust, Java, C, C++, C#, Ruby, PHP, Kotlin, Swift, Scala, Zig, Lua, Elixir, Gleam, and more
Speculative execution: preview edits in memory, see what breaks before touching disk
Phase enforcement: blocks out-of-order operations so agents follow correct workflows

Token savings

Measured across 5 codebases (Go, TypeScript, Python):

Codebase	Lines	Savings
agent-lsp	15K	5x
Hono (TypeScript)	24K	13x
FastAPI (Python)	33K	2x
Next.js (TypeScript)	196K	5x
HashiCorp Consul (Go)	319K	34x

Full experiment: agent-lsp.com/token-savings

Works with

Claude Code, Cursor, Windsurf, GitHub Copilot, and any MCP-compatible client.

Metadata

Release files for agent-lsp 0.22.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Built distributions (wheels)

Table of built distributions (wheels) for agent-lsp 0.22.0
File	Interpreter	ABI	Platform	Reset
agent_lsp-0.22.0-py3-none-win_arm64.whl 10.9 MB Oct 7, 2026	Python 3	none	Windows ARM64	Details
agent_lsp-0.22.0-py3-none-win_amd64.whl 6.1 MB Oct 7, 2026	Python 3	none	Windows x86-64	Details
agent_lsp-0.22.0-py3-none-manylinux2014_x86_64.whl 12.0 MB Oct 7, 2026	Python 3	none	Linux glibc 2.17+ x86-64	Details
agent_lsp-0.22.0-py3-none-manylinux2014_aarch64.whl 11.5 MB Oct 7, 2026	Python 3	none	Linux glibc 2.17+ ARM64	Details
agent_lsp-0.22.0-py3-none-macosx_11_0_arm64.whl 11.7 MB Oct 7, 2026	Python 3	none	macOS 11.0+ ARM64	Details
agent_lsp-0.22.0-py3-none-macosx_10_12_x86_64.whl 12.1 MB Oct 7, 2026	Python 3	none	macOS 10.12+ x86-64	Details

Total release size: 64.3 MB

Release files / agent_lsp-0.22.0-py3-none-win_arm64.whl

Download URL	agent_lsp-0.22.0-py3-none-win_arm64.whl
Size	10.9 MB
Tags	Python 3 Windows ARM64
SHA-256 checksum How to use checksums	`c801572aca9b6459b3422ad7bf31bae771f0c86a2cd597d2fce6f6a188d0feb9`
BLAKE2b-256 checksum How to use checksums	`efa67fa7416fe4168373593449f74ff1d64df563dff86ec062051962b4a99a0c`
Upload date	Oct 7, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.15`

Release files / agent_lsp-0.22.0-py3-none-win_amd64.whl

Download URL	agent_lsp-0.22.0-py3-none-win_amd64.whl
Size	6.1 MB
Tags	Python 3 Windows x86-64
SHA-256 checksum How to use checksums	`fd7f1347a0f4d23d56cbae2de4b420a82bd5aa32650fecad1fae7fd62b0f8a25`
BLAKE2b-256 checksum How to use checksums	`08bd76d3af148de19d59081f8b672aeda643888d7917f12cf2e69ab694fc9cb3`
Upload date	Oct 7, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.15`

Release files / agent_lsp-0.22.0-py3-none-manylinux2014_x86_64.whl

Download URL	agent_lsp-0.22.0-py3-none-manylinux2014_x86_64.whl
Size	12.0 MB
Tags	Linux glibc 2.17+ x86-64 Python 3
SHA-256 checksum How to use checksums	`6ae9da3b1f834aeb47467b438b2aa544f08273345719ca4bfaf5625608fc1aa5`
BLAKE2b-256 checksum How to use checksums	`10c92433baaf8bd0cf7de7499717f8c27f488d0e247c0e8f5588459d2b871e01`
Upload date	Oct 7, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.15`

Release files / agent_lsp-0.22.0-py3-none-manylinux2014_aarch64.whl

Download URL	agent_lsp-0.22.0-py3-none-manylinux2014_aarch64.whl
Size	11.5 MB
Tags	Linux glibc 2.17+ ARM64 Python 3
SHA-256 checksum How to use checksums	`37ab1bef52479b4268543a6189d7fe930502c825620d7965743997a50411e7d0`
BLAKE2b-256 checksum How to use checksums	`715f41e727e3e44a95ccfc3e611373d710c4535e61084124e6881b981857467f`
Upload date	Oct 7, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.15`

Release files / agent_lsp-0.22.0-py3-none-macosx_11_0_arm64.whl

Download URL	agent_lsp-0.22.0-py3-none-macosx_11_0_arm64.whl
Size	11.7 MB
Tags	Python 3 macOS 11.0+ ARM64
SHA-256 checksum How to use checksums	`85ab81874b7330a51a2d979b3015bf73536e8b7f7fe2b13ceab230b209880af4`
BLAKE2b-256 checksum How to use checksums	`dd090557f93e60bc7dce53d34d32d7af2bbfc7f43813c019b8f5100c5fb5b47d`
Upload date	Oct 7, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.15`

Release files / agent_lsp-0.22.0-py3-none-macosx_10_12_x86_64.whl

Download URL	agent_lsp-0.22.0-py3-none-macosx_10_12_x86_64.whl
Size	12.1 MB
Tags	Python 3 macOS 10.12+ x86-64
SHA-256 checksum How to use checksums	`b2f861d27b12806fd0f1df58b4ae63e413591bd71e9be882fa0d35cdc5b794ab`
BLAKE2b-256 checksum How to use checksums	`8c3600438bfc4a4628bc8686b7aedbb6a39e9f8af2e0c401628cdc6c390e263e`
Upload date	Oct 7, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.15`