content-dates SKILL.md skillA
content-dates from thedaviddias/front-end-checklist is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add thedaviddias/front-end-checklist/content-dates@git:20261004.4b0ddb9Pins git:20261004.4b0ddb9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- thedaviddias/front-end-checklist
- Path
skills/content-dates/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261004.4b0ddb9, committed Oct 4, 2026
- First version recorded
- May 29, 2026
- Size
- 2,766 bytes
- Repository stars
- 74,516
- License
- MIT
Use when auditing article or blog pages for date markup, generating Article JSON-LD with datePublished/dateModified, or checking whether a CMS template surfaces dates correctly.
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
# Show published and updated dates
Google uses publication and modification dates to assess content freshness, which influences rankings for time-sensitive queries. Visible dates also build user trust by signalling that content is current and maintained.
## Quick Reference
- Include a visible published date and a `dateModified` in JSON-LD for every article or blog post
- Use ISO 8601 format (`2024-03-15T10:00:00Z`) in structured data; human-readable in the visible UI
- Update `dateModified` only when content meaningfully changes — not on trivial edits
## Check
On each article or blog page, check: (1) Is there a visible published date in the page body or byline? (2) Does the JSON-LD `Article` or `BlogPosting` block include `datePublished` and `dateModified` properties in ISO 8601 format? (3) Does the `<head>` include `<meta property="article:published_time">` and `<meta property="article:modified_time">` Open Graph tags?
## Fix
1. Add a visible publication date in the page byline: `<time datetime="2024-03-15">March 15, 2024</time>`.
2. Add `datePublished` and `dateModified` to the Article JSON-LD block:
```json
{
"@type": "Article",
…Read the whole file at its exact version.
How to install
mdr add thedaviddias/front-end-checklist/content-dates@sha256:8d538d5ac9293292The line at the top of this page pins the label git:20261004.4b0ddb9, 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_vgghjt54ddw7e2zy)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between May 29, 2026 and Oct 4, 2026, about one every 128 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261004.4b0ddb9 latest | 2026-10-04 | 4b0ddb9 | 2,766 B | A | view · diff |
| git:20260529.7c05904 | 2026-05-29 | 7c05904 | 2,772 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 (2766 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
thedaviddias/front-end-checklist · 74,516 stars · license MIT · pushed 2026-10-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vgghjt54ddw7e2zy GET https://markdownregistry.com/api/v1/resolve?ref=thedaviddias/front-end-checklist/content-dates GET https://markdownregistry.com/api/v1/blob/8d538d5ac9293292b8bfa6e799c0ab42e1278e875fc937d6dbd6b8cd1fd339e2
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.