Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Rule-based product method: scores an idea, finds its riskiest assumption, sequences the build.
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://mcp.modernmustardseed.com/idea-sequencerRun this in your terminal
claude mcp add --transport http idea-sequencer https://mcp.modernmustardseed.com/idea-sequencerPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"idea-sequencer": {
"url": "https://mcp.modernmustardseed.com/idea-sequencer"
}
}
}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": {
"idea-sequencer": {
"type": "http",
"url": "https://mcp.modernmustardseed.com/idea-sequencer"
}
}
}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://mcp.modernmustardseed.com/idea-sequencerMenu 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 8, 2026. The maker wrote them, not us; we show them as plain text.
classify_ideaClassify a product or business idea with fixed rules (no AI model): one of 10 product types and 9 buyer types with the words that matched, a 0 to 100 risk score on each of 10 assumptions (problem, buyer access, willingness to pay, solution fit, feasibility, retention, supply, reg
validation_planPick the cheapest test that can prove one assumption about an idea wrong within the days available, from a library of 18 named tests (for example Five Past-Behavior Interviews, Pay Link Pre-sale, Smoke Test Landing Page, Letter of Intent Round, Concierge MVP, Wizard of Oz, Feasib
cut_mvpSort a feature list into must, should and not now using 15 explicit rules on each feature's tags (core_job, revenue, compliance, trust_safety, onboarding, measurement, retention, integration, automation, admin, growth, analytics, customization, platform, scale, delight), whether
sequence_buildTurn a feature list with dependencies into a dated build plan: applies the MVP cut, orders tasks by dependency, schedules them across the given number of builders on working days (weekends skipped), computes the critical path and each task's slack, adds the method's own tasks (re
kill_or_continueMake a push, iterate, park or kill call on 1 to 12 products from their metrics (target, actual, kill line, must-hit), evidence, stage, review date, last activity, and monthly revenue and cost, using 10 named decision rules: a must-hit metric past its kill line on the review date
build_scope_and_sequenceRun the full Idea to Product method on one idea and its feature list and return a Scope and Sequence plan as a Markdown document, followed by a short JSON summary. The document covers the problem and buyer, the riskiest assumption with its risk table, this week's validation test
explain_methodReturn one of the method's reference tables: the four stages and their exit gates, the 10 assumptions, the evidence ladder, the 18 validation tests, the MVP cut rules, the feature tags, the 10 product types with their risk priors and build rules, the 9 buyer types, the decision r
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 9, 2026
The registry lists no source repo, so we cannot match the publisher (modernmustardseed.com) to the code
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
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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 (1.0.0) reached the registry 28 days ago.
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, erateradar
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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No README found in the repo