Agent Lsp MCP server
Language servers as 66 code-intelligence tools for AI agents, CI-verified on 32 languages.
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166 stars1.5k downloads/wk
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If you have run it, two minutes of your experience saves the next person an afternoon.
Agent Lsp tools
No tool declarations could be read from the package source. They show once the server is installed.
How Agent Lsp compares
Against every graded Developer tools MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 92/100
- higher than 90% of 1,119 Developer tools servers
- GitHub stars
- 166
- more than 95% of 856 Developer tools servers
- Downloads a week
- 1,463
- more than 95% of 442 Developer tools servers with a package
Release history: 12 versions in the registry since 2026-08-29, latest 2026-11-04, typically one every 4 days.
Install Agent Lsp in Claude Code, Cursor or VS Code
Runs npx -y @blackwell-systems/agent-lsp on your machine. Read the scan report first; the gateway never runs local packages.
claude mcp add agent-lsp -- npx -y @blackwell-systems/agent-lsp
What the publisher says
From the Agent Lsp repository's README, as published. We do not edit it. Read it on GitHub
Code intelligence infrastructure for AI agents. 65 tools, 31 CI-verified languages, 24 agent workflows. Single Go binary.
curl -fsSL https://raw.githubusercontent.com/blackwell-systems/agent-lsp/main/install.sh | sh && agent-lsp initWhat is it?
agent-lsp is an MCP server that orchestrates existing LSP servers (gopls, rust-analyzer, jdtls, etc.) into agent-native workflows.
Not an LSP server — it's an orchestration layer that manages language servers and exposes batch operations, speculative editing, and multi-step workflows via MCP tools.
Architecture:
- Language servers (gopls, rust-analyzer, etc.) → provide code intelligence
- agent-lsp (MCP server) → orchestrates workflows, maintains warm runtime
- AI agents → consume via MCP protocol
Why agent-lsp?
Persistent warm runtime Language servers stay indexed across agent sessions. First session: indexes workspace (~10s for typical projects). Subsequent sessions: instant. No cold-start penalty on each request.
Batch operations blast_radius → one call returns all exports + all callers (test vs non-test partitioned). Without orchestration: 20+ sequential LSP calls.
Speculative editing simulate_edit → preview changes in memory, check diagnostic delta, apply or discard. Test edits before touching disk.
Workflow orchestration 24 skills that chain LSP operations into complete pipelines:
- /lsp-refactor → impact analysis → preview → apply → verify build → run tests
- /lsp-safe-edit → preview → diagnostic diff → apply if safe
- /lsp-verify → LSP diagnostics → build → test suite
Multi-language, single session One agent-lsp process routes .go to gopls, .ts to tsserver, .py to pyright. No reconfiguration between projects. Session persists across files and repositories.
[!TIP]
Token-optimized output: Tool responses encoded in GCF instead of JSON. 30-84% fewer tokens depending on tool (up to 92.7% with session dedup). 100% LLM comprehension on every frontier model, 91.2% on complex code graphs where JSON averages 54.1%. See below for measured savings per tool.
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
Agent Lsp: common questions
- Is Agent Lsp MCP server safe?
- Yes, by our scan: it is graded A (92/100). Read the Agent Lsp safety report
- How do I install Agent Lsp?
- It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
- Does Agent Lsp need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Agent Lsp maintained?
- The last commit was 7 days ago (2026-10-30). The latest release is v0.24.2.
- What can I use instead of Agent Lsp?
- Servers from other publishers that do the same job: Repowise MCP server, Srclight MCP server and Contextatlas MCP server.
- How does Agent Lsp compare with other Developer tools MCP servers?
- safety score 92/100 (higher than 90% of 1,119 Developer tools servers); github stars 166 (more than 95% of 856 Developer tools servers); downloads a week 1,463 (more than 95% of 442 Developer tools servers with a package). Full comparison.
Alternatives to Agent Lsp
Same job from other publishers: the closest match first, then the best rated.
RepowiseCodebase intelligence for AI coding agents — graph, git history, docs, decisions, code health.not reviewedEstablishedB- SrclightDeep code indexing for AI agents. FTS5 + embeddings + call graphs + git intelligence. Fully local.not reviewedGrowingA
- ContextatlasPre-computed atlas of your codebase for Claude Code: LSP + ADRs + git. 45-72% token reduction.not reviewedGrowingA
