d2-diagram-creator
D2 Diagram Creator - Auto-activating skill for Visual Content. Triggers on: d2 diagram creator, d2 diagram creator Part of the Visual Content skill category.
34
Quality
3%
Does it follow best practices?
Impact
87%
0.92xAverage score across 3 eval scenarios
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./planned-skills/generated/18-visual-content/d2-diagram-creator/SKILL.mdEvaluation results
100%
8%Fintech Startup Architecture Documentation
Production-ready D2 diagram with best practices
Meaningful node names
100%
100%
Labeled connections
100%
100%
D2 shape declarations
100%
100%
Containers or groups
0%
100%
Valid D2 syntax operators
100%
100%
Styled elements
100%
100%
Complete diagram
100%
100%
README explains components
100%
100%
README walkthrough structure
100%
100%
No placeholder text
100%
100%
Without context: $0.2641 · 1m 17s · 16 turns · 17 in / 3,818 out tokens
With context: $0.3571 · 1m 33s · 22 turns · 95 in / 4,860 out tokens
90%
CI/CD Pipeline Documentation for SOC 2 Compliance
Step-by-step D2 guidance and D2 validation workflow
Labeled stage nodes
100%
100%
Labeled connections
100%
100%
Shape differentiation
100%
100%
Containers for pipeline phases
100%
100%
Valid D2 connection syntax
100%
100%
Deployment guide structure
100%
100%
Deployment guide coverage
100%
100%
Validation attempted
100%
100%
No placeholder content
100%
100%
D2 comments or annotations
0%
0%
Without context: $0.3532 · 1m 43s · 20 turns · 20 in / 5,422 out tokens
With context: $0.5729 · 2m 3s · 33 turns · 1,800 in / 6,565 out tokens
73%
-27%Database Schema Diagram for Multi-Tenant SaaS Application
D2 ERD with output validation
SQL table shape
100%
100%
Field declarations
100%
100%
Relationship labels
100%
70%
Meaningful entity names
100%
100%
All five entities present
100%
100%
Primary keys marked
100%
100%
Consistent naming convention
100%
100%
FK connections present
100%
100%
Validation attempted
100%
20%
Validation result recorded
100%
7%
Without context: $0.3052 · 1m 7s · 22 turns · 21 in / 3,618 out tokens
With context: $0.3889 · 1m 14s · 25 turns · 25 in / 4,344 out tokens
- Commit
0c08951
- Evaluated
- Agent
- Claude Code
- Model
- Claude Sonnet 4.6
Table of Contents
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