Expert C4 Component-level documentation specialist. Synthesizes C4 Code-level documentation into Component-level architecture, defining component boundaries, interfaces, and relationships. Creates component diagrams and documentation.
SkillScore77Maintained
Automatic
◆Coding pack
Last verified 8/29/2026
What it changes
Passed 17 of 22 test cases with the skill, and 9 of 22 without it.
Without skill41%
With skill77%
Checks it passed that the model alone missed
The output links sub-skills for external dependencies.
The document contains links to code-level element files.
The component type is specified as a Library or Service.
and 8 more in the full report
9 fixed8 passed either way4 still failing1 broke
Pass-rate lift
+36 pp
Tokens
-42%
Agent turns
0%
Response time
-45%
Model gemini-3.6-flashMeasured 8/29/2026v117 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 9
Prompt
I'm refactoring a monolith's Notification module into a standalone component and need to map it using the C4 model component template. Please produce a component overview that lists its technology, internal code files, software features, and external system interfaces, along with verification steps for the implementation.
What was checked, without and with the skill
Checked
Without skill
With skill
The document structures the top-level heading with the C4 Component Level format.
Missed
Passed
The specification includes relative links to sub-skill markdown files for external interfaces and dependencies.
Missed
Passed
case-03 · gemini-3.6-flash · 8/29/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md52 linessingle file
C4 Component Level: [Component Name]
Use this skill when
Working on c4 component level: [component name] tasks or workflows
Needing guidance, best practices, or checklists for c4 component level: [component name]
Do not use this skill when
The task is unrelated to c4 component level: [component name]
You need a different domain or tool outside this scope
Instructions
Clarify goals, constraints, and required inputs.
Apply relevant best practices and validate outcomes.
Provide actionable steps and verification.
If detailed examples are required, open resources/implementation-playbook.md.
Overview
Name: [Component name]
Description: [Short description of component purpose]