QAmcp

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Directory / Lexington

Lexington

Q: Is Lexington MCP server safe?

QAmcp's test on 8 Nov 2026: None of the hidden-instruction wordings we know were found in its 7 tool descriptions. 0 of its 7 tools are labeled read-only; the others may change or send things. Overall it scored 83/100 on 8 Nov 2026. A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

by lexingtonthemes.com · https://mcp.lexingtonthemes.com/mcp

Finished Tailwind sections and design systems from every Lexington theme, as Astro, React or HTML.

7 tools✓ no account neededPricing: on their site

See pricing →Visit website

83 /100

PASS · WITH NOTES

Partial: 8 of 11 checks · 8 Nov 2026

Test it now for current results

At a glance

Runs where: On their server. What you send to it goes to them.
What you need: Nothing: it answered without a login
Tools: 7 tools
Its own safety labels: 0 read-only, 7 with no label
Memory it takes: About 1,000 tokens of your AI's memory, just for its tool descriptions

Tokens are an estimate: the characters in its tool names, descriptions and inputs, divided by 4. The exact number depends on your AI model. Safety labels are what the server says about itself. From our latest test, 8 Nov 2026.

Is Lexington MCP server safe?

None of the hidden-instruction wordings we know were found in its 7 tool descriptions.
0 of its 7 tools are labeled read-only; the others may change or send things.
Overall it scored 83/100 on 8 Nov 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What this test does not check

Its source code and packages.
What a tool quietly does behind the scenes, such as writing a file or calling another service.
Instructions hidden inside live tool answers. We only look for those in tool descriptions.
Hidden instructions worded in a way our list doesn't know yet.
Tools that could change something. Those are read, never run.

What QAmcp can and can't see · How to tell if an MCP server is safe · Hidden instructions · Prompt injection

Known security advisories

It lists no public code, so there is nothing to look up in GitHub Security Advisories or OSV.dev. QAmcp tests how a server behaves. It does not scan source code.

What it can do

7 tools, in the server's own words.

get_guidelines

Read this first.

list_themes

Every theme available, with who it is for, its visual personality, fonts, light/dark mode and section count.

search_sections

Find sections by role and description.

get_theme_setup

Once per project, per theme: tokens.css and Fonts.astro to write, plus the two setup steps.

get_design

The theme's design system: typography recipes, what each colour scale means, spacing rhythm, components, do and don't, plus roles.json (the same as data: actio…

get_skill

The companion skill for a theme, to write into the project so the agent keeps the theme's rules on every later edit without calling this server: the theme's ow…

get_sections

One or more sections with every file they need (fundations, icons, placeholder images), each with the path to write it to.

Test results

Safe mode: only tools labeled read-only were run. How the test works

!
Every tool is described
3 warnings
- !get_theme_setup: Inputs with no description: theme
- !get_design: Inputs with no description: theme
- !get_skill: Inputs with no description: theme
note
!
Tools are labeled safe or dangerous
1 warning
- !7 of 7 tools have no safety label (read-only or dangerous): get_guidelines, list_themes, search_sections, get_theme_setup, get_design, get_skill, get_sections
note
!
Follows MCP best practices (not scored yet)
2 tips (not scored)
- !7 tools not labeled read-only don't say whether running them twice is safe (idempotentHint): get_guidelines, list_themes, search_sections, get_theme_setup, get_design, get_skill and 1 more
- !7 tools don't say whether they reach outside services like the web (openWorldHint): get_guidelines, list_themes, search_sections, get_theme_setup, get_design, get_skill and 1 more
note
✓
ConnectsConnected in 320 ms
pass
✓
Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
pass
✓
Lists its toolsFound 7 tools
pass
✓
No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
pass
✓
Fast enough
All good
- ✓Connecting took 320 ms
- ✓Listing tools took 172 ms
pass
–
Tools work with good inputs
Not tested
- –get_guidelines: Not run: no safety label (if you own this server, test again in owner mode)
- –list_themes: Not run: no safety label (if you own this server, test again in owner mode)
- –search_sections: Not run: no safety label (if you own this server, test again in owner mode)
- –get_theme_setup: Not run: no safety label (if you own this server, test again in owner mode)
- –get_design: Not run: no safety label (if you own this server, test again in owner mode)
- –get_skill: Not run: no safety label (if you own this server, test again in owner mode)
- –get_sections: Not run: no safety label (if you own this server, test again in owner mode)
not tested
–
Bad inputs give a clean errorNot tested
not tested
–
Tools work togetherNo safe tool returned data to start a chain from, so chains were not tested (not counted either way)
not tested
–
No secrets leakedNo error messages to check
not tested

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://mcp.lexingtonthemes.com/mcp

Show this score on GitHub

Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.

[![QAmcp score](https://qamcp.dev/s/com-lexingtonthemes-lexington.svg)](https://qamcp.dev/s/com-lexingtonthemes-lexington.html)

Score over time

8 Nov 202683

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Lexington, signed in with GitHub, one per person. Reviews never change the score.

Is this your server? Get an alert the moment it breaks.

QAmcp Monitor tests it every hour and emails you when it goes down, the score drops, a tool changes or a secret leaks. Free for 1 server, no card.

Have a concern, or want it removed? Ask us and we'll take it off the list. How the directory works