GitNexus (Akon Labs)

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The nervous system for agent context.

Indexes any codebase into a knowledge graph — every dependency, call chain, cluster, and execution flow —
then exposes it through smart MCP tools so AI agents never miss code.







💬 <a href="https://discord.gg/MgJrmsqr62">Discord</a> ·
🌐 <a href="https://gitnexus.vercel.app">Web UI</a> ·
🏢 <a href="https://akonlabs.com">Enterprise (SaaS & self-hosted)</a>

https://github.com/user-attachments/assets/172685ba-8e54-4ea7-9ad1-e31a3398da72

Like DeepWiki, but deeper. DeepWiki helps you understand code. GitNexus lets you analyze it — a knowledge graph tracks every relationship, not just descriptions.

TL;DR: The CLI + MCP makes your AI agent reliable — it gives Cursor, Claude Code, Antigravity, Codex, and friends a deep architectural view of your codebase so they stop missing dependencies, breaking call chains, and shipping blind edits. Even smaller models get full architectural clarity. The Web UI is a quick way to chat with any repo in the browser.

Quick Start

# 1. Index your repo (run from repo root)
npx gitnexus analyze

# 2. Connect your editors (one-time, auto-detects Claude Code, Cursor, Codex, …)
npx gitnexus setup

That's it. analyze indexes the codebase, installs agent skills, registers Claude Code hooks, and creates AGENTS.md / CLAUDE.md context files — all in one command. setup writes the MCP config so your AI agent can use the graph.

Install problems? npm 11 crash · slow cold install · no C++ toolchain

On npm 11.x? npx can crash during install with Cannot destructure property 'package' of 'node.target' (an npm/arborist bug, before GitNexus runs). Use pnpm instead — it builds the native deps explicitly:

bash pnpm --allow-build=@ladybugdb/core --allow-build=gitnexus --allow-build=tree-sitter dlx gitnexus@latest analyze

Or install globally (npm install -g gitnexus@latest) and run gitnexus analyze. See #1939.

Fastest MCP startup: install globally (npm i -g gitnexus) before running gitnexus setup — this writes an absolute-path MCP config that bypasses npx entirely. On a cold cache, an npx-based MCP install can exceed Claude Code's MCP_TIMEOUT default (~30s).

No C++ toolchain? Set GITNEXUS_SKIP_OPTIONAL_GRAMMARS=1 before npm install -g gitnexus to skip the vendored grammar materialize/build for tree-sitter-dart, tree-sitter-proto, tree-sitter-swift, and tree-sitter-kotlin — those four languages won't be parsed, but install completes in seconds without python3/make/g++. Strict =1 only — any other value falls through to the rebuild.

Behind an HTTP proxy / regional firewall? onnxruntime-node's postinstall downloads optional CUDA binaries from api.nuget.org and ignores HTTP_PROXY/HTTPS_PROXY (#2370). The embedding stack is an optional dependency, so a failed download no longer breaks the install — and it self-heals: the first gitnexus analyze --embeddings (or gitnexus embeddings install) fetches the stack through your npm registry config (mirrors/proxies apply, no NuGet) into ~/.gitnexus/embedding-runtime (override with GITNEXUS_EMBEDDING_RUNTIME_DIR). The on-demand prefix needs Node with module.registerHooks (≥ 22.15 on 22.x, ≥ 23.5 on 23.x); on older Node, keep the stack in the install itself with ONNXRUNTIME_NODE_INSTALL=skip npm install -g gitnexus (works on every supported Node).

About tree-sitter-kotlin: like Dart/Proto/Swift, Kotlin is a vendored grammar (under gitnexus/vendor/tree-sitter-kotlin). Upstream ships source only (no prebuilt binaries), so GitNexus cross-builds the platform prebuilds itself (via the build-tree-sitter-prebuilds GitHub Actions workflow) and vendors them — the same uniform pipeline used for Dart, Proto, and Swift. node-gyp-build selects the right .node at require time, so no C/C++ toolchain is needed. If no prebuild matches your platform-arch, only Kotlin (.kt/.kts) parsing is unavailable; the rest of gitnexus is unaffected.

Deploy to Render

Deploy GitNexus in one click:

The Blueprint creates two services. gitnexus-server runs gitnexus serve as a private service: no public URL, reachable only over Render's private network, with a persistent disk for indexes and cloned repos. gitnexus-web is the public one. It serves the UI and reverse-proxies /api/* to the server, so the browser talks to a single origin.

At the Blueprint's defaults this runs about $35/month: $25 for the server's standard instance, $7 for the web service's starter instance, and $2.50 for the 10 GB disk. See Render's pricing for other plans.

The deploy generates an access token, and the UI asks for it on first use:

1. Open the gitnexus-web service in your Render dashboard.
2. Copy GITNEXUS_SERVE_AUTH_TOKEN from its Environment tab.
3. Load the site and paste the token into the prompt (or the settings panel).

Every /api/* request carries that token as a header, and the proxy answers 401 without it. The browser keeps it in sessionStorage, so a new tab asks again. To rotate it, edit the environment variable and redeploy.

The proxy strips Origin before forwarding, so the server's CSRF guard does nothing for proxied traffic; it passes Origin-less requests through by design. The token is the only control on this deploy, not a second layer behind the guard. Anyone holding it can read every indexed repo. See SECURITY.md.

Indexing is memory-bound. If gitnexus-server runs out of memory on a large repo, raise its plan, which sets available RAM: standard is 2 GB, pro is 4 GB. Raise sizeGB only if the disk fills with clones and indexes.

Two Ways to Use GitNexus

Bridge mode: gitnexus serve connects the two — the web UI auto-detects the local server and can browse all your CLI-indexed repos without re-uploading or re-indexing.

Why a Knowledge Graph?

Tools like Cursor, Claude Code, Codex, Cline, Roo Code, and Windsurf are powerful — but they don't truly know your codebase structure. So this happens:

1. AI edits UserService.validate()
2. Doesn't know 47 functions depend on its return type
3. Breaking changes ship

Traditional Graph RAG gives the LLM raw graph edges and hopes it explores enough. GitNexus precomputes structure at index time — clustering, tracing, scoring — so tools return complete context in one call:

flowchart TB
    subgraph Traditional["Traditional Graph RAG"]
        direction TB
        U1["User: What depends on UserService?"]
        U1 --> LLM1["LLM receives raw graph"]
        LLM1 --> Q1["Query 1: Find callers"]
        Q1 --> Q2["Query 2: What files?"]
        Q2 --> Q3["Query 3: Filter tests?"]
        Q3 --> Q4["Query 4: High-risk?"]
        Q4 --> OUT1["Answer after 4+ queries"]
    end

    subgraph GN["GitNexus Smart Tools"]
        direction TB
        U2["User: What depends on UserService?"]
        U2 --> TOOL["impact UserService upstream"]
        TOOL --> PRECOMP["Pre-structured response:
        8 callers, 3 clusters, all 90%+ confidence"]
        PRECOMP --> OUT2["Complete answer, 1 query"]
    end

Core innovation: Precomputed Relational Intelligence

• Reliability — the LLM can't miss context; it's already in the tool response
• Token efficiency — no 10-query chains to understand one function
• Model democratization — smaller LLMs work because the tools do the heavy lifting

What Your AI Agent Gets

17 MCP tools (15 per-repo + 2 group)

Per-repo tools take an optional repo parameter (omit it when only one repo is indexed) and an optional branch for indexes pinned with gitnexus analyze --branch. Omitting branch queries the workspace index, which follows your checked-out working tree — switching branches and re-running gitnexus analyze updates it incrementally. explain and pdg_query need an index built with gitnexus analyze --pdg.

Resources for instant context