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Summary

This PR modernizes the AI Engineering curriculum (Chapter 3) by replacing the Harper Reed workflow with Liatrio's Spec-Driven Development (SDD) methodology, significantly expanding context engineering coverage, and restructuring exercises for structured learning.

Changes Overview

🎯 Task 1.0: Expand Context Engineering Coverage

  • File: docs/3-AI-Engineering/3.1.4-ai-best-practices.md
  • Expanded from 10 to 30 minutes reading time with comprehensive context engineering coverage
  • Added 7 new sections: Context Windows, Context Rot, Intentional Compaction, Progressive Disclosure, Context Tracking, Resources
  • Introduced key metrics: 40%+ degradation threshold, 60%+ compaction trigger, ~150-200 instruction limit
  • Integrated HumanLayer resources (12-Factor Agents, Advanced Context Engineering) and Chroma research

🔄 Task 2.0: Replace Harper Reed Workflow with SDD Methodology

  • File: docs/3-AI-Engineering/3.3.1-agentic-best-practices.md
  • Replaced 3-stage Harper Reed workflow with 4-stage SDD workflow:
    1. Generate Specification (SDD Stage 1)
    2. Task Breakdown (SDD Stage 2)
    3. Execute with Management (SDD Stage 3)
    4. Validate Implementation (SDD Stage 4)
  • Added Liatrio spec-driven-workflow repository links
  • Embedded "No Vibes Allowed" YouTube videos (primary + alternative)
  • Integrated context engineering cross-references throughout
  • Updated from 30 to 40 minutes reading time

📝 Task 3.0: Update Quiz Content

  • File: src/quizzes/chapter-3/3.3/agentic-best-practices-quiz.js
  • Replaced Harper Reed workflow question with SDD four-stage sequence
  • Added 5 new questions covering:
    • Context rot (40%+ dumb zone)
    • Intentional compaction (60%+ trigger)
    • Progressive disclosure patterns
    • Proof artifacts purpose in SDD
  • Updated AI limitations question to reference context rot

🛠️ Task 4.0: Modernize Tool Coverage with Claude Code

  • Files: 3.1.2-ai-agents.md, 3.3.1-agentic-best-practices.md, 3.3.2-agentic-ide.md
  • Added Claude Code to Agent Tools section with context management features
  • Integrated /context command examples for monitoring utilization
  • Added Claude Code to Popular Examples in Agentic IDEs section
  • Maintained VSCode as primary environment with balanced tool representation

📚 Task 5.0: Restructure Exercises with SDD Workflow

  • File: docs/3-AI-Engineering/3.3.2-agentic-ide.md
  • Renamed exercises from "VSCode Vibing" to "Structured MCP Server Development with SDD"
  • Added comprehensive 4-stage SDD workflow to both exercises
  • Added Context Management Tips section (monitoring, 60% compaction, progressive disclosure)
  • Added Proof Artifacts section explaining what they are and why they matter
  • Updated Deliverables with 8 SDD-focused questions

✅ Task 6.0: Integration, Cross-References, and Quality Assurance

  • Verified cross-references: 3.3.1 → 3.1.4, 3.3.2 → 3.3.1, 3.3.2 → 3.1.4
  • Confirmed terminology consistency across all files
  • Validated all external links (HumanLayer, Liatrio, YouTube, MCP resources)
  • Ensured logical content progression: Foundations → Workflows → Application
  • All linting checks passed (0 errors)
  • Front-matter metadata validated successfully

Impact

For Students

  • Structured Learning: Clear 4-stage workflow replaces exploratory "vibing"
  • Context Awareness: Understanding of context rot and management techniques
  • Professional Practices: SDD methodology used in real-world AI-assisted development
  • Modern Tools: Updated coverage including Claude Code alongside VSCode

For Curriculum

  • Consistency: Aligns with Liatrio's spec-driven-workflow methodology
  • Depth: Expanded from ~40 to ~70 minutes total reading time
  • Quality: Comprehensive cross-references and logical content flow
  • Evidence-Based: Includes research (Chroma context rot study) and industry resources

Testing & Validation

  • ✅ All markdown linting passed (0 errors across 166 files)
  • ✅ Front-matter metadata validated
  • ✅ 6 comprehensive proof artifact files created
  • ✅ Quiz questions aligned with updated content
  • ✅ Cross-references verified
  • ✅ External links functional

Files Changed

Documentation (4 files)

  • docs/3-AI-Engineering/3.1.4-ai-best-practices.md
  • docs/3-AI-Engineering/3.3.1-agentic-best-practices.md
  • docs/3-AI-Engineering/3.1.2-ai-agents.md
  • docs/3-AI-Engineering/3.3.2-agentic-ide.md

Quiz (1 file)

  • src/quizzes/chapter-3/3.3/agentic-best-practices-quiz.js

Specifications & Proof Artifacts (8 files)

  • docs/specs/98-spec-ai-engineering-modern-practices/ (task file + 6 proof artifacts)

Related Work

  • Specification: docs/specs/98-spec-ai-engineering-modern-practices/98-spec-ai-engineering-modern-practices.md
  • Task List: docs/specs/98-spec-ai-engineering-modern-practices/98-tasks-ai-engineering-modern-practices.md
  • Proof Artifacts: docs/specs/98-spec-ai-engineering-modern-practices/98-proofs/

References

🤖 Generated with Claude Code

jburns24 and others added 8 commits January 9, 2026 15:48
- Add comprehensive sections on context windows, context rot (40%+ dumb zone), intentional compaction (60%+ trigger), progressive disclosure, and context tracking
- Update estReadingMinutes from 10 to 30 minutes
- Include HumanLayer resources (12-Factor Agents, Advanced Context Engineering)
- Add /context command documentation for Claude Code and VSCode tools
- Expand deliverables with context engineering questions
- All markdown linting and front-matter validation passing

Related to T1.0 in Spec 98
- Replace 3 workflow sections with 4-stage SDD workflow (Generate Spec → Task Breakdown → Execute with Management → Validate)
- Add Liatrio spec-driven-workflow repository link
- Embed 'No Vibes Allowed' primary video and reference alternative recording
- Add comprehensive examples for each SDD stage with proof artifacts
- Integrate context engineering cross-references (40%+ degradation, 60%+ compaction triggers)
- Update estReadingMinutes from 30 to 40 minutes
- Update Deliverables with 6 SDD-focused questions
- Maintain 'Other Practical AI Techniques' section unchanged
- All markdown linting passing

Related to T2.0 in Spec 98
- Replace Harper Reed workflow question with SDD four-stage workflow question

- Add new questions on context rot (40% dumb zone), intentional compaction (60% threshold), progressive disclosure, and proof artifacts

- Update existing question about AI limitations to reference context rot

- Maintain rawQuizdown format and beginner-appropriate language

Related to T3.0 in Spec 98
- Add Claude Code to Agent Tools section in 3.1.2-ai-agents.md

- Add Claude Code to Popular Examples list in 3.3.2-agentic-ide.md

- Update exercises to mention Claude Code as viable alternative

- Include /context command guidance for context monitoring

- Maintain VSCode as primary environment throughout

Related to T4.0 in Spec 98
- Renamed Exercise 1 from "VSCode Vibing" to "Structured MCP Server Development with SDD"
- Renamed Exercise 2 from "Windsurf" to "Structured MCP Server Development with Windsurf IDE"
- Added comprehensive four-stage SDD workflow (Generate Spec → Task Breakdown → Execute → Validate)
- Added Context Management Tips section with monitoring, compaction, and progressive disclosure guidance
- Added Proof Artifacts section explaining what they are and why they matter
- Restructured exercise steps to follow four SDD stages with clear checkpoints
- Updated Deliverables with SDD-focused questions about workflow application and context management
- Added cross-references to 3.3.1 (SDD methodology) and 3.1.4 (context engineering)
- All linting and front-matter validation checks passing

Related to T5.0 in Spec 98

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Verified cross-references: 3.3.1 → 3.1.4, 3.3.2 → 3.3.1, 3.3.2 → 3.1.4
- Confirmed terminology consistency: context engineering, context rot, intentional compaction, proof artifacts
- Validated 12-Factor Agents integration in 3.1.4 Resources section
- Verified all external links correctly formatted (HumanLayer, Liatrio, YouTube, MCP resources)
- Confirmed logical content progression: Foundations (3.1.4) → Workflows (3.3.1) → Application (3.3.2)
- Validated Deliverables sections at end of all files with updated questions
- Verified quiz alignment with updated content (SDD workflow, context rot, compaction, proof artifacts)
- All linting checks passed (0 errors across 4 markdown files)
- Front-matter metadata validated successfully
- Reviewed all 5 commits for proper conventions (conventional commits, task references)
- Completed comprehensive quality review for beginner-friendliness and clarity
- Validated all proof artifacts from Tasks 1.0-5.0

Related to T6.0 in Spec 98

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
@jburns24 jburns24 merged commit 24866a6 into master Jan 10, 2026
2 checks passed
@jburns24 jburns24 deleted the feature/ai-engineering branch January 10, 2026 00:35
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2 participants