Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Knobs.co cabinet-hardware advisor: sizing, fits, finishes, prices, plans, cart and sample links.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://sienna.knobs.co/mcpRun this in your terminal
claude mcp add --transport http sienna https://sienna.knobs.co/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"sienna": {
"url": "https://sienna.knobs.co/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"sienna": {
"type": "http",
"url": "https://sienna.knobs.co/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://sienna.knobs.co/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 7, 2026. The maker wrote them, not us; we show them as plain text.
ask_siennaAsk Knobs.co's automated cabinet-hardware advisor one question in plain words and get one complete answer with the exact products named (title, vendor, finish, size, list price, URL). Best for: which pull length for a drawer width, what fits existing holes (center-to-center), kno
search_catalogSearch the live Knobs.co catalog by item type, size, finish, brand or series ("5 inch pull satin nickel", "Top Knobs Lynwood", "3 inch matte black pull"). Returns up to 10 products with vendor, center-to-center size, overall length, finishes, list prices, variant ids and product
get_productEvery variant (finish, SKU, list price, variant id) of one product by its handle (from search_catalog or a knobs.co/products/ URL), with sizes and description.
sizing_guideKnobs.co's sizing rules: which pull length for which drawer width, the standard 128 mm size, knobs versus pulls, one pull or two, and how to measure existing holes. No arguments.
store_infoWhat Knobs.co is, what it sells, how to buy, samples, trade program, how to reach a person, and how this service works. No arguments.
searchSearch Knobs.co products. Returns {results:[{id,title,url}]} where id is the product handle for fetch.
fetchFetch one Knobs.co product document by id (the handle from search). Returns {id,title,text,url,metadata}.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
The registry lists no source repo, so we cannot match the publisher (knobs.co) to the code
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 176 ms (HTTP 200)
No sign-in needed
Read 7 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (1.1.1) reached the registry today.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, Filesystem MCP
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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No README found in the repo