Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Read your Yellowhead Diagnostics, scans and action items in an AI assistant, and start Diagnostics.
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://api.yellowhead.digital/mcpRun this in your terminal
claude mcp add --transport http agent-door https://api.yellowhead.digital/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"agent-door": {
"url": "https://api.yellowhead.digital/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": {
"agent-door": {
"type": "http",
"url": "https://api.yellowhead.digital/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://api.yellowhead.digital/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.
list_diagnosticsLists the Diagnostics in the connected Yellowhead account, newest first. Each item has its id, business name, website, status (queued, processing, completed or failed; a run with no result after 15 minutes is reported as failed), client_id, MIDAS score once complete, and created
get_diagnosticReturns one Diagnostic by id: its status, business name, website, client_id, MIDAS score and created date, plus report_id once it has completed. Fits checking whether a particular run has finished; the findings themselves come from get_report.
get_reportReturns the report of a completed Diagnostic by id: the ten area scores as the owner rated them (side_a_scores) and as detected (side_b_scores), the MIDAS score, executive summary, blind spots, budget and investment reads, business profile, detected tech stack, brand visibility a
list_action_itemsLists the action items in the connected account, newest first. Each has its id, title, description, rationale, status, priority, area (pillar), phase, estimated cost range, suggested tools, remediation guidance, the Diagnostic it came from (source_id), client_id, assignee and due
get_action_itemReturns one action item by id with its full detail: why it matters (rationale), what to do (description and remediation guidance), the tools involved, its status and dates, and the Diagnostic it came from. Fits explaining or planning one fix. Fixes happen on the business's own sy
get_usageReturns this month's Diagnostic allowance for the connected account: how many included Diagnostics are used (used), the monthly allowance (limit), how many remain (remaining), the plan, whose allowance a run draws on (pool), and the date the allowance resets (resets_on). On the F
list_strategic_assessmentsLists the published Strategic Assessments in the connected account, newest first, with their ids, the Diagnostic each was based on, client_id and dates. Only published assessments appear: one that is booked or still being written appears once it is published, so an empty page doe
get_strategic_assessmentReturns one published Strategic Assessment by id: the deliverable written for the business after its live session. Fits working from its priorities and recommendations.
list_infrastructure_auditsLists the published Infrastructure Audits in the connected account, newest first, with their ids, the Diagnostic each followed, client_id and dates. Only published audits appear: one that is in progress appears once it is published. Filters: client_id and diagnostic_report_id.
get_infrastructure_auditReturns one published Infrastructure Audit by id, as published to the account. Fits working from its findings and recommendations.
list_citation_scansLists the Citation Scans in the connected account, newest first. A Citation Scan asks a fixed set of buyer questions in one category and country across several AI answer engines and records which websites the answers cite. Each item has its id, the website scanned (target_domain)
get_citation_scanReturns one Citation Scan by id: its website, category, country, status and dates, the named competitors (competitor_domains), and once completed its results: the ranking of every domain the answers cited with each one's share of answered cells, the coverage (how many answer cell
list_crawlability_scansLists the Crawlability Scans in the connected account, newest first. A Crawlability Scan checks, URL by URL from the website's sitemap, whether AI crawlers are allowed in by robots.txt and whether pages answer AI crawler identities the way they answer a browser. Each item has its
get_crawlability_scanReturns one Crawlability Scan by id: its website, sitemap, status, dates and page counts (imported, approved, measured, not measured, dead, stale or missing last-modified dates, duplicates, linked but not in the sitemap), and once completed its run summary (results): whether robo
list_accessibility_scansLists the Accessibility Scans in the connected account, newest first. An Accessibility Scan measures a sample of the website's pages against automated WCAG 2.x A and AA checks, grouped by page template. Each item has its id, the website (target_domain), status (draft, importing,
get_accessibility_scanReturns one Accessibility Scan by id: its website, sitemap, status, dates and page counts, and once completed its results: the run summary (pages measured on both viewports, templates sampled, and the note on what automated checks can and cannot show), the per-template roll-up of
get_approval_statusReturns the state of a held request by its approval_id (from update_action_item, add_action_item_comment or run_diagnostic): pending_approval (waiting for an account admin in the Yellowhead app), applying, applied, denied, expired or failed, with the request and decision times an
update_action_itemRequests a change to one action item: its status (queued, in_progress, completed or dismissed), assignee, due date or resolution notes. Available only on a connection an account admin set up in the Yellowhead app and allowed to make this request; a connection made through an assi
add_action_item_commentRequests a comment on one action item's timeline: what was done, what was found, or what is needed from a person. Available only on a connection an account admin set up in the Yellowhead app and allowed to make this request; a connection made through an assistant's sign-in cannot
run_diagnosticRequests a new Diagnostic of the same website and business as an earlier one (prior_diagnostic_id), reusing that run's answers. Available only on a connection an account admin set up in the Yellowhead app and allowed to make this request; a connection made through an assistant's
describe_yellowheadDescribes Yellowhead Digital, with no sign-in needed: what it is; the free Diagnostic (the ten areas it checks, how long it takes, what the Free plan includes, and that an account is needed to run one); every plan with its price and monthly Diagnostics; the paid scans and human s
list_portfolioLists the client workspaces of the connected team account (brand workspaces on Business Enterprise), one page at a time, with the total so an answer can say how many are shown out of how many. Each row has the client_id, client name and website, the latest Diagnostic (report_id a
get_portfolio_changesLists the client workspaces whose MIDAS score moved since a date (default: the last 30 days), largest move first. A client appears when its most recent scored Diagnostic is on or after that date and its MIDAS changed, against the scored Diagnostic before it, by more than the usua
start_diagnosticStarts a Diagnostic of a website for the signed-in person, in two calls. The first call returns a preview and starts nothing: the website, the business name, the ten 1-to-10 self-ratings (which were answered, carried over or entered as 5 for "not sure"), the monthly tools budget,
get_run_statusReports whether a Diagnostic is queued, running, completed or failed, by its id (diagnostic_id, as start_diagnostic and list_diagnostics give it), with when it started and how many minutes have passed. A Diagnostic usually takes 5 to 10 minutes; one taking longer is reported as 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 7, 2026
The registry lists no source repo, so we cannot match the publisher (yellowhead.digital) to the code
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 417 ms (HTTP 200)
No sign-in needed
Read 25 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 (0.1.0) 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, LexPact UK Contracts
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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