product-design-spec SKILL.md skillA
product-design-spec from mgiovani/cc-arsenal is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mgiovani/cc-arsenal/product-design-spec@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mgiovani/cc-arsenal
- Path
skills/product-design-spec/SKILL.md- Versions recorded
- 5
- Latest version
- v1.0.0, committed Oct 5, 2026
- First version recorded
- Jul 27, 2026
- Size
- 10,590 bytes
- Repository stars
- 8
- License
- MIT
Authors the design specification for an approved PRD (information architecture, user flows, a screen inventory, and per-screen state and interaction specs), reusing the project's existing component library first and tracing every screen back to a PRD requirement ID. Lean by default: one design-spec.md, full specs for only the 2-3 most critical screens, WCAG 2.2 AA delegated to review-design. Use for "write a design spec", "map the user flows", "screen inventory with states", or…
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
# Product Design Spec Turn an approved PRD into the design half of the spec (IA, flows, a screen inventory, and per-screen state/interaction specs), spec'ing only as much as the work warrants. This skill writes no UI code; it produces the design the build (`implement-feature`) then works from. Output lands under `docs/specs/design/`. `<skill-dir>` below is this skill's directory. ## Input $ARGUMENTS Parse the source (first match wins), then read it: | Pattern | Source | Read via | |---|---|---| | existing `docs/specs/prd/*.md` or any path | the approved PRD / a file | Read it (grab every `PRD-<CAT>-NNN` ID) | | `PROJ-123` | Jira | `jira issue view PROJ-123` | | `#42` / `owner/repo#42` | GitHub issue | `gh issue view 42 --json title,body,labels,comments` | | `http(s)://` | URL | `WebFetch` | | anything else | plain text | the idea itself | A trailing `--tier small|medium|big` overrides the size assessment. ## Prerequisites & fallback Component-library detection and flow research use the `Task` tool with `Explore`/haiku subagents. No `Task` tool? Run every detection and research step inline, sequentially: the phase → gate → phase structure below …
Read the whole file at its exact version.
How to install
mdr add mgiovani/cc-arsenal/product-design-spec@sha256:a094e3fe484bc864The line at the top of this page pins the label v1.0.0, 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_gylmpyyvwjyp2jiq)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 27, 2026 and Oct 5, 2026, about one every 18 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-10-05 | b620662 | 10,590 B | A | view · diff |
| v1.0.0 | 2026-09-25 | ca015cc | 10,717 B | A | view · diff |
| v1.0.0 | 2026-09-24 | a80f9cd | 10,745 B | A | view · diff |
| v1.0.0 | 2026-09-16 | 0d6e629 | 10,816 B | A | view · diff |
| v1.0.0 | 2026-07-27 | fa2e9cf | 10,706 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 (10590 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
mgiovani/cc-arsenal · 8 stars · license MIT · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gylmpyyvwjyp2jiq GET https://markdownregistry.com/api/v1/resolve?ref=mgiovani/cc-arsenal/product-design-spec GET https://markdownregistry.com/api/v1/blob/a094e3fe484bc864942f46a3bbf563f53d47c5a474762d2e4f9dce9ccb74c041
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.