spec-driven-development SKILL.md skillA
spec-driven-development from magnus919/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add magnus919/agent-skills/spec-driven-development@git:20261016.237c9c5Pins git:20261016.237c9c5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- magnus919/agent-skills
- Path
spec-driven-development/SKILL.md- Versions recorded
- 9
- Latest version
- git:20261016.237c9c5, committed Oct 16, 2026
- First version recorded
- Jul 6, 2026
- Size
- 18,667 bytes
- Repository stars
- 162
- License
- MIT
Design and run a Spec-Driven Development (SDD) pipeline for AI software factories — where structured specifications are the input, AI agents generate the code, and quality gates enforce correctness at each phase: SPECIFY → DECOMPOSE → IMPLEMENT → VERIFY → DELIVER. Use when building or refining a spec-driven pipeline any AI coding tool (Claude Code, Cursor, Hermes Agent, Devin, OpenHands, droid) can follow, or when you need spec quality gates, phase-gate verdicts, NFR encoding, or format…
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
# Spec-Driven Development for AI Software Factories
A methodology for building software where **specifications are the executable input** to an AI code generation pipeline. The factory model: specs are blueprints, AI agents are the assembly line, verification is quality control, and gates catch defects before they compound.
## Pipeline Overview
```
INCEPTION → [SPECIFY] → REVIEW → [DECOMPOSE] → REVIEW → [IMPLEMENT] → REVIEW → [VERIFY] → DELIVER
↑ ↑ ↑ ↑ ↑ ↑ ↑ ↓
Phase 1 Gate 1 Phase 2 Gate 2 Phase 3 Gate 3 Phase 4 Gate 4
```
Each phase passes through a gate before the next begins. A defect caught at Gate 1 costs minutes to fix; the same defect found at Gate 4 costs hours.
Use an existing approved PRD, architecture document or issue set as the specification
when it supplies the minimum handoff in `references/factory-review-lanes.md`.
Throughout this workflow, SPEC.md denotes that authoritative specification; it need
not be a new file or competing copy. Validate equivalent content and traceability.
…Read the whole file at its exact version.
How to install
mdr add magnus919/agent-skills/spec-driven-development@sha256:6133cd3b755fb533The line at the top of this page pins the label git:20261016.237c9c5, 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_zyynufern4zihysn)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 9 versions of this file, between Jul 6, 2026 and Oct 16, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.237c9c5 latest | 2026-10-16 | 237c9c5 | 18,667 B | A | view · diff |
| git:20261015.4be4646 | 2026-10-15 | 4be4646 | 17,597 B | A | view · diff |
| git:20261009.0138b46 | 2026-10-09 | 0138b46 | 16,759 B | A | view · diff |
| git:20261009.b45615b | 2026-10-09 | b45615b | 16,166 B | A | view · diff |
| git:20260824.e10508b | 2026-08-24 | e10508b | 15,442 B | A | view · diff |
| git:20260719.bd66202 | 2026-07-19 | bd66202 | 14,397 B | A | view · diff |
| git:20260713.ef60002 | 2026-07-13 | ef60002 | 14,632 B | A | view · diff |
| git:20260711.a5f7e74 | 2026-07-11 | a5f7e74 | 14,461 B | A | view · diff |
| git:20260706.980f870 | 2026-07-06 | 980f870 | 14,443 B | A | view |
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 (18667 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
magnus919/agent-skills · 162 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_zyynufern4zihysn GET https://markdownregistry.com/api/v1/resolve?ref=magnus919/agent-skills/spec-driven-development GET https://markdownregistry.com/api/v1/blob/6133cd3b755fb5338ec91cee6378b7e1b55ea3f1cb11c8c175a1d6821d5195b0
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.
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