docs: Add Marp slide deck with mkdocs integration

[cmungall]

Adds a presentation slide deck for linkml-term-validator.

Contents (~30 slides)

• Ontology background and why term validation matters
• LinkML enumerations (static vs dynamic)
• LTV architecture (3 plugins: binding, dynamic enum, permissible value)
• Contrast with vskit materialization approach
• Anti-hallucination dual validation pattern
• Multi-level caching system
• Real-world dismech case study (500+ disorders, 16 ontologies)
• LTV's position in the LinkML ecosystem (not in core yet)

Setup (matching valuesets repo pattern)

• docs/slides/ltv-slides.md — Marp source
• docs/slides/ltv-slides.html — Pre-built HTML
• docs/slides/index.md — mkdocs wrapper with iframe embed
• justfile — gen-slides recipe
• mkdocs.yml — nav points to wrapper, not raw marp

[claude]

Claude finished @cmungall's task —— View job

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PR Review: Marp Slide Deck Integration

I've thoroughly reviewed this PR that adds a presentation slide deck for linkml-term-validator. Here's my detailed feedback:

Todo List:

• Read and analyze all changed files
• Review slide content structure and accuracy
• Examine build system integration (justfile, mkdocs.yml)
• Check for security concerns
• Assess performance considerations
• Evaluate test coverage needs
• Provide comprehensive feedback

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✅ Overall Assessment: Excellent Implementation

This PR adds a well-structured presentation that follows established patterns and integrates cleanly with the existing documentation system.

🎯 Strengths

Content Quality

• Comprehensive coverage: 30 slides covering ontology background, LinkML enumerations, LTV architecture, and real-world use cases
• Technical accuracy: Content aligns with CLAUDE.md project description and demonstrates deep understanding of the tool
• Practical examples: Good balance of theory and practical CLI examples
• Clear narrative flow: Logical progression from problem identification to solution presentation

Build Integration

• Clean setup: Follows valuesets repo pattern with proper separation of concerns
• Proper tooling: Uses industry-standard Marp CLI with appropriate flags (--allow-local-files)
• mkdocs integration: Smart iframe wrapper approach preserves full Marp styling while integrating with docs site
• Build automation: gen-slides recipe properly placed in main justfile

File Organization

docs/slides/
├── ltv-slides.md      # Source (694 lines)
├── ltv-slides.html    # Pre-built output (167KB)
└── index.md           # mkdocs wrapper with iframe

🔧 Technical Implementation Review

Build System (justfile:113-115)

gen-slides:
  cd docs/slides && npx @marp-team/marp-cli ltv-slides.md --allow-local-files -o ltv-slides.html

• ✅ Proper working directory change
• ✅ Correct output file specification
• ✅ --allow-local-files flag appropriately used for local development

mkdocs Integration (mkdocs.yml:45)

nav:
  - Explanation:
      - Presentation: slides/index.md

• ✅ Logical placement under "Explanation" section
• ✅ Points to wrapper, not raw Marp file (correct pattern)

Duplicate Recipe Issue ⚠️

Minor Issue: There are now two gen-slides recipes:

1. justfile:113-115 (this PR):

   gen-slides:
     cd docs/slides && npx @marp-team/marp-cli ltv-slides.md --allow-local-files -o ltv-slides.html

2. project.justfile:57-62 (existing):

   gen-slides:
     @echo "Building slides with Marp..."
     @mkdir -p docs/slides/output
     npx @marp-team/marp-cli docs/slides/ltv-slides.md -o docs/slides/output/ltv-slides.html

The main justfile's recipe will override the project.justfile one due to import order, but this creates inconsistency.

📊 Performance Considerations

File Sizes

• Source markdown: 19.7KB (reasonable)
• Generated HTML: 167KB (acceptable for slide deck with embedded styles)
• Total addition: ~188KB (minimal impact)

Caching Strategy

• ✅ Pre-built HTML committed to repo (good for CI/CD performance)
• ✅ No runtime compilation required for docs serving

🔒 Security Review

• ✅ No security concerns: Slide content is static markdown with no dynamic content
• ✅ Safe build process: Uses standard Marp CLI with appropriate flags
• ✅ Clean iframe embedding: Standard mkdocs iframe integration
• ✅ No external dependencies: Self-contained presentation

📝 Content Highlights

The slide content demonstrates excellent technical communication:

1. Problem identification: Clear explanation of ontology validation challenges
2. Solution architecture: Well-illustrated 3-plugin system
3. Comparison with alternatives: Thoughtful vskit vs LTV comparison
4. Real-world evidence: DisMech case study with concrete metrics
5. AI integration: Forward-looking anti-hallucination patterns

🛠 Recommendations

1. Fix Recipe Duplication

Choose one approach and remove the other:

Option A (recommended): Keep main justfile recipe, remove from project.justfile
Option B: Keep project.justfile recipe with output directory, update main justfile

2. Consider Documentation

Add a brief note in CLAUDE.md about slide generation:

### Documentation
just gen-slides       # Generate Marp slide deck

✅ Test Coverage

No additional test coverage needed - this is documentation/presentation content that:

• Uses standard Marp tooling (well-tested)
• Contains static content (no business logic)
• Follows established patterns (iframe embedding)

🎯 Summary

This is a high-quality addition that enhances the project's documentation with a professional presentation. The technical implementation is sound, follows established patterns, and integrates well with the existing toolchain.

Recommendation: Approve after addressing the minor recipe duplication issue.

[Copilot]

Pull request overview

Adds a Marp-based presentation slide deck to the documentation site and wires it into MkDocs navigation, along with Just recipes to (re)generate the rendered outputs.

Changes:

• Add Marp slide source (docs/slides/ltv-slides.md) and a pre-built HTML export (docs/slides/ltv-slides.html).
• Add an MkDocs page wrapper (docs/slides/index.md) and link it into mkdocs.yml nav.
• Add gen-slides Just recipes intended to generate HTML/PDF outputs.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
project.justfile	Adds a gen-slides recipe to build slide outputs via npx marp-cli.
justfile	Imports project.justfile and adds another gen-slides recipe.
mkdocs.yml	Adds “Presentation” to the MkDocs nav under “Explanation”.
docs/slides/index.md	MkDocs page that links to and embeds the generated slides via iframe.
docs/slides/ltv-slides.md	Marp markdown source for the slide deck.
docs/slides/ltv-slides.html	Pre-built Marp HTML export of the slide deck.

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