Deixis MCP Server

Deixis is a Model Context Protocol (MCP) server that gives coding agents typed access to Language Server Protocol (LSP) operations. It manages explicitly configured language servers for one project and exposes their semantic capabilities without adding another filesystem, shell, editor, index, or memory layer.

People who work with Rust and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Rust.

VERIFIED ACTIVE

LAST COMMIT 2026-09-25 · ★ 2 · #900 OF 998 MAINTAINED OTHER · VERIFIED 2026-09-30

Apache-2.0 · Rust servers · how we verify → /methodology

01 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

repo age created 2026-09-03 - young repo, little track record yet

license Apache-2.0 - declared in the repository

registry namespace io.github.jolars is GitHub-verified and matches the repo owner

02 · What Deixis can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Limitations (from the README)

[!WARNING] Deixis is pre-alpha. Its semantic tools and guarded rename workflow work, but no stability guarantees are available yet.

Latest releases

v0.2.2 · 2026-09-25

wait for indexing before retrying empty results · migrate to rmcp 3.4 server config · retry transient semantic query results

v0.2.1 · 2026-09-16

publish releases to MCP registry

v0.2.0 · 2026-09-07

summarize language server status · add language server compatibility matrix · harden LSP lifecycle resilience · add stable tool renderers · add document symbols · bound language server resources · add workspace symbol…

03 · Who maintains Deixis

Deixis is maintained by jolars. It's the only MCP server we track from this author; the repo dates to Sep 2026.

04 · Facts

repository
github.com/jolars/deixis
website
https://github.com/jolars/deixis
category
other - ranked #900 of 998 actively-maintained other servers as of 2026-09-30.
release cadence
3 releases in the last 90 days (latest 2026-09-25)
registry
io.github.jolars/deixis (active, first published 2026-09-16 · 2 versions)
packages
cargo:deixis

05 · Deixis FAQ

What is Deixis?

Deixis is a Model Context Protocol (MCP) server that gives coding agents typed access to Language Server Protocol (LSP) operations. It manages explicitly configured language servers for one project and exposes their semantic capabilities without adding another filesystem, shell, editor, index, or memory layer.

Is Deixis still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-25 and it shipped 3 releases in the last 90 days. We re-verify nightly.

06 · Alternatives to Deixis

Alternatives to Deixis

Maintained other servers if Deixis isn't the fit.

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  6. Microsoft Fabric MCP Server MCP tools for interacting with Microsoft Fabric ★ 3,722 · 2026-09-29

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