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Markdown Post Frontmatter Validation

Agent skill
1 skill

Use when authoring or reviewing the frontmatter of a markdown post — checking required fields (title, date, slug, tags), validating against the content schema in lib/content/schema.ts, catching ambiguous date formats or tags not in the controlled vocabulary, and ensuring the slug matches the file path. Activate this skill whenever the task touches files under content/posts//.md, the parsePostFrontmatter() helper, or any code path that reads YAML frontmatter from a content file. Do NOT use for general YAML schema design (use a generic schema-design skill) or for chasing a specific build-time validation failure (use debugging).

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

Skill stats

Skills1CategoryEngineeringStars0

About this skill

Use when authoring or reviewing the frontmatter of a markdown post — checking required fields (title, date, slug, tags), validating against the content schema in lib/content/schema.ts, catching ambiguous date formats or tags not in the controlled vocabulary, and ensuring the slug matches the file path. Activate this skill whenever the task touches files under content/posts//.md, the parsePostFrontmatter() helper, or any code path that reads YAML frontmatter from a content file. Do NOT use for general YAML schema design (use a generic schema-design skill) or for chasing a specific build-time validation failure (use debugging).

Quick start

  1. Copy the install prompt. Use the green button above this README.
  2. Send it to your agent. Paste it into your coding agent’s chat and send.
  3. Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
Review the source before using this skill

This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 108f4a7747fb0f275582864cb7e184ac447ebd1edade2ffa00db4cb81764a0d1

About scan coverage and limitations

About this listing

Category
Engineering
Reported license
Not specified
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Markdown Post Frontmatter Validation | Agent Skills Atlas