greenfield-architect SKILL.md skillA
greenfield-architect from jdanigo/hydraia is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jdanigo/hydraia/greenfield-architect@git:20260703.c5a2b92Pins git:20260703.c5a2b92 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jdanigo/hydraia
- Path
skills/greenfield-architect/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260703.c5a2b92, committed Jul 3, 2026
- Size
- 3,253 bytes
- Repository stars
- 8
- License
- MIT
Use when the user wants a new app, service, or system designed from scratch — greenfield work with no existing code to anchor to. Interactive architect: elicits requirements one question at a time, drives architecture proposals, recommends a stack with rationale, designs the API contract, and records every decision as an ADR. Never assumes scale, stack, or constraints.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Greenfield Architect — design the system before the first line Runs in the MAIN session (interactive). The "app from scratch" route of the Hydraia pipeline: everything here happens BEFORE the normal Phase 2 spec, and feeds it. <HARD-RULES> - One question at a time (AskUserQuestion, multiple-choice preferred). Never a questionnaire wall. - Never pick a stack silently: recommendation + rationale + explicit human confirmation. - Default architecture is a well-structured monolith. Splitting into services requires EVIDENCE from elicitation (scale, team topology); splitting without it is over-engineering and must be named as such. - Every load-bearing decision becomes an ADR (adr skill). No decision lives only in chat. - "No sé" is a valid human answer: propose a safe default, state the assumption explicitly in the ADR's Context, and set a revisit trigger. </HARD-RULES> ## Flow 1. **Elicit** (in this order, one question each, skip what the request already answers): - Problem + primary users — what pain, who feels it. - Scale honesty — expected users/data/requests as ranges (10? 10k? 10M?). Push back on fantasy numbers. …
Read the whole file at its exact version.
How to install
mdr add jdanigo/hydraia/greenfield-architect@sha256:5c7b3b18e24c8b93The line at the top of this page pins the label git:20260703.c5a2b92, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_tq2qwr3chqtkr66k)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 3, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3253 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jdanigo/hydraia · 8 stars · license MIT · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tq2qwr3chqtkr66k GET https://markdownregistry.com/api/v1/resolve?ref=jdanigo/hydraia/greenfield-architect GET https://markdownregistry.com/api/v1/blob/5c7b3b18e24c8b93fcbf61aa3b4e00cc4594640c38c3c37630efeb25721a90e1
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.