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DevLens MCP server

by devlensio·io.github.devlensio/devlens·v0.7.2·61 stars
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Query a precomputed code graph (nodes, edges, summaries) of TS/JS/React/Next.js/Node repos via MCP.

B74/100grade B
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Safety scan
B74/100

full report

Adoption
Growing

61 stars175 downloads/wk

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

DevLens tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.10 · 2026-11-01 · same rubric, same numbers if you re-run it

2 medium
  • Code scan2 source files scanned15/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 4 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10

Findings (2)

  • mediumnpm install lifecycle script presentinstall.script
  • mediumnpm install lifecycle script presentinstall.script
    package.json: … "node scripts/stage-binaries.mjs", "postinstall": "node scripts/postinstall.mjs" }, "…
Overall 74/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How DevLens compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
74/100
higher than 40% of 48,255 servers
GitHub stars
61
more than 95% of 28,688 servers
Downloads a week
175
more than 73% of 12,191 servers with a package

Release history: 6 versions in the registry since 2026-08-22, latest 2026-10-28, typically one every 3 days.

Install DevLens in Claude Code, Cursor or VS Code

Runs npx -y @devlensio/cli on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add devlens -- npx -y @devlensio/cli
Add to Cursor

What the publisher says

From the DevLens repository's README, as published. We do not edit it. Read it on GitHub

DevLens

Intelligent codebase visualizer.

Turn any TypeScript, JavaScript, Python, Go, Rust, or Java repository into a living, queryable graph — every node carries a functional summary, a technical summary, and a security assessment.

Join the DevLens Cloud Waitlist →

Click the image to watch the demo

Table of Contents

  • What is DevLens?
  • Supported languages
  • Prerequisites
  • Quick Start
  • Screenshots
  • Why it's fast & cheaper
  • Ways to use DevLens
  • Web UI — visual exploration
  • CLI — terminal power
  • Agent Skill — AI-powered understanding
  • MCP Server — for any MCP-compatible AI agent
  • How to summarize

What is DevLens?

DevLens turns a codebase into a pre-built dependency graph. Instead of reading files one at a time, you (or your AI agent) query the graph: every component, class, function, route, struct, or trait is a node, and every connection is a typed edge (CALLS, IMPORTS, HANDLES, IMPLEMENTS, …). Each node carries:

  • Functional summary — what business purpose does this serve?
  • Technical summary — how does it work?
  • Security assessment — severity + explanation

This is the difference between an AI that re-reads your whole repo every session and an AI that already knows the architecture — architecture reviews, impact analysis, security audits, and onboarding take minutes, not hours.

Typical use cases:

  • Onboarding — a developer joining a new team sees the architecture, functional/ technical summaries, modules, and gotchas in minutes, not weeks.
  • Impact analysis — before touching a symbol, see its blast radius: what breaks if you change it?
  • Security reviews — every node carries a severity-ranked security assessment with real reach.
  • PR review — a review packet that explains the diff's impact, tests, and security delta.
  • AI agents — give Claude/Cursor/Kilo an MCP server + skill that queries the graph instead of re-reading files.

Supported languages

DevLens parses six languages with native parsers (no AI, no regex, no tree-sitter) and understands their frameworks:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Grade history

  • 2026-11-01restoreC → Bscore 74: npm install lifecycle script present; npm install lifecycle script present

DevLens: common questions

Is DevLens MCP server safe?
Mostly: it is graded B (74/100). Read the DevLens safety report
How do I install DevLens?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does DevLens need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is DevLens maintained?
The last commit was 7 days ago (2026-10-28). The latest release is v0.7.2.
How does DevLens compare with other MCP servers?
safety score 74/100 (higher than 40% of 48,255 servers); github stars 61 (more than 95% of 28,688 servers); downloads a week 175 (more than 73% of 12,191 servers with a package). Full comparison.