C4 Code Level: [Directory Name] workflow skill. Use this skill when the user needs Expert C4 Code-level documentation specialist. Analyzes code directories to create comprehensive C4 code-level documentation including function signatures, arguments, dependencies, and code structure and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.
C4 Code Level: [Directory Name] workflow skill. Use this skill when the user needs Expert C4 Code-level documentation specialist. Analyzes code directories to create comprehensive C4 code-level documentation including function signatures, arguments, dependencies, and code structure and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.
This public intake copy packages plugins/antigravity-awesome-skills-claude/skills/c4-code from https://github.com/sickn33/antigravity-awesome-skills into the native Omni Skills editorial shape without hiding its origin.
Use it when the operator needs the upstream workflow, support files, and repository context to stay intact while the public validator and private enhancer continue their normal downstream flow.
This intake keeps the copied upstream files intact and uses the external_source block in metadata.json plus ORIGIN.md as the provenance anchor for review.
C4 Code Level: [Directory Name]
Imported source sections that did not map cleanly to the public headings are still preserved below or in the support files. Notable imported sections: Code Elements, Dependencies, Relationships, Notes, Key Distinctions, Limitations.
When to Use This Skill
Use this section as the trigger filter. It should make the activation boundary explicit before the operator loads files, runs commands, or opens a pull request.
Working on c4 code level: [directory name] tasks or workflows
Needing guidance, best practices, or checklists for c4 code level: [directory name]
The task is unrelated to c4 code level: [directory name]
You need a different domain or tool outside this scope
Use when the request clearly matches the imported source intent: Expert C4 Code-level documentation specialist. Analyzes code directories to create comprehensive C4 code-level documentation including function signatures, arguments, dependencies, and code structure.
Use when the operator should preserve upstream workflow detail instead of rewriting the process from scratch.
Operating Table
Situation
Start here
Why it matters
First-time use
metadata.json
Confirms repository, branch, commit, and imported path through the external_source block before touching the copied workflow
Provenance review
ORIGIN.md
Gives reviewers a plain-language audit trail for the imported source
Workflow execution
SKILL.md
Starts with the smallest copied file that materially changes execution
Supporting context
SKILL.md
Adds the next most relevant copied source file without loading the entire package
Handoff decision
## Related Skills
Helps the operator switch to a stronger native skill when the task drifts
Workflow
This workflow is intentionally editorial and operational at the same time. It keeps the imported source useful to the operator while still satisfying the public intake standards that feed the downstream enhancer flow.
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.
Confirm the user goal, the scope of the imported workflow, and whether this skill is still the right router for the task.
Read the overview and provenance files before loading any copied upstream support files.
Load only the references, examples, prompts, or scripts that materially change the outcome for the current request.
Imported Workflow Notes
Imported: 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.
Imported: Overview
Name: [Descriptive name for this code directory]
Description: [Short description of what this code does]
Use @c4-code to handle <task>. Start from the copied upstream workflow, load only the files that change the outcome, and keep provenance visible in the answer.
Explanation: This is the safest starting point when the operator needs the imported workflow, but not the entire repository.
Example 2: Ask for a provenance-grounded review
Review @c4-code against metadata.json and ORIGIN.md, then explain which copied upstream files you would load first and why.
Explanation: Use this before review or troubleshooting when you need a precise, auditable explanation of origin and file selection.
Example 3: Narrow the copied support files before execution
Use @c4-code for <task>. Load only the copied references, examples, or scripts that change the outcome, and name the files explicitly before proceeding.
Explanation: This keeps the skill aligned with progressive disclosure instead of loading the whole copied package by default.
Example 4: Build a reviewer packet
Review @c4-code using the copied upstream files plus provenance, then summarize any gaps before merge.
Explanation: This is useful when the PR is waiting for human review and you want a repeatable audit packet.
Imported Usage Notes
Imported: Example Interactions
Object-Oriented Codebases
"Analyze the src/api directory and create C4 Code-level documentation"
"Document the service layer code with complete class hierarchies and dependencies"
"Create C4 Code documentation showing interface implementations in the repository layer"
Functional/Procedural Codebases
"Document all functions in the authentication module with their signatures and data flow"
"Create a data pipeline diagram for the ETL transformers in src/pipeline"
"Analyze the utils directory and document all pure functions and their composition patterns"
"Document the Rust modules in src/handlers showing function dependencies"
"Create C4 Code documentation for the Elixir GenServer modules"
Mixed Paradigm
"Document the Go handlers package showing structs and their associated functions"
"Analyze the TypeScript codebase that mixes classes with functional utilities"
Imported: Output Examples
When analyzing code, provide:
Complete function/method signatures with all parameters and return types
Clear descriptions of what each code element does
Links to actual source code locations
Complete dependency lists (internal and external)
Structured documentation following C4 Code-level template
Mermaid diagrams for complex code relationships when needed
Consistent naming and formatting across all code documentation
## Best Practices
Treat the generated public skill as a reviewable packaging layer around the upstream repository. The goal is to keep provenance explicit and load only the copied source material that materially improves execution.
- Keep the imported skill grounded in the upstream repository; do not invent steps that the source material cannot support.
- Prefer the smallest useful set of support files so the workflow stays auditable and fast to review.
- Keep provenance, source commit, and imported file paths visible in notes and PR descriptions.
- Point directly at the copied upstream files that justify the workflow instead of relying on generic review boilerplate.
- Treat generated examples as scaffolding; adapt them to the concrete task before execution.
- Route to a stronger native skill when architecture, debugging, design, or security concerns become dominant.
## Troubleshooting
### Problem: The operator skipped the imported context and answered too generically
**Symptoms:** The result ignores the upstream workflow in `plugins/antigravity-awesome-skills-claude/skills/c4-code`, fails to mention provenance, or does not use any copied source files at all.
**Solution:** Re-open `metadata.json`, `ORIGIN.md`, and the most relevant copied upstream files. Check the `external_source` block first, then restate the provenance before continuing.
### Problem: The imported workflow feels incomplete during review
**Symptoms:** Reviewers can see the generated `SKILL.md`, but they cannot quickly tell which references, examples, or scripts matter for the current task.
**Solution:** Point at the exact copied references, examples, scripts, or assets that justify the path you took. If the gap is still real, record it in the PR instead of hiding it.
### Problem: The task drifted into a different specialization
**Symptoms:** The imported skill starts in the right place, but the work turns into debugging, architecture, design, security, or release orchestration that a native skill handles better.
**Solution:** Use the related skills section to hand off deliberately. Keep the imported provenance visible so the next skill inherits the right context instead of starting blind.
## Related Skills
- `@00-andruia-consultant` - Use when the work is better handled by that native specialization after this imported skill establishes context.
- `@00-andruia-consultant-v2` - Use when the work is better handled by that native specialization after this imported skill establishes context.
- `@10-andruia-skill-smith` - Use when the work is better handled by that native specialization after this imported skill establishes context.
- `@10-andruia-skill-smith-v2` - Use when the work is better handled by that native specialization after this imported skill establishes context.
## Additional Resources
Use this support matrix and the linked files below as the operator packet for this imported skill. They should reflect real copied source material, not generic scaffolding.
| Resource family | What it gives the reviewer | Example path |
| --- | --- | --- |
| `references` | copied reference notes, guides, or background material from upstream | `references/n/a` |
| `examples` | worked examples or reusable prompts copied from upstream | `examples/n/a` |
| `scripts` | upstream helper scripts that change execution or validation | `scripts/n/a` |
| `agents` | routing or delegation notes that are genuinely part of the imported package | `agents/n/a` |
| `assets` | supporting assets or schemas copied from the source package | `assets/n/a` |
### Imported Reference Notes
#### Imported: Dependencies
### Internal Dependencies
- [List of internal code dependencies]
### External Dependencies
- [List of external libraries, frameworks, services]
#### Imported: Relationships
Optional Mermaid diagrams for complex code structures. Choose the diagram type based on the programming paradigm. Code diagrams show the **internal structure of a single component**.
### Object-Oriented Code (Classes, Interfaces)
Use `classDiagram` for OOP code with classes, interfaces, and inheritance:
```mermaid
---
title: Code Diagram for [Component Name]
---
classDiagram
namespace ComponentName {
class Class1 {
+attribute1 Type
+method1() ReturnType
}
class Class2 {
-privateAttr Type
+publicMethod() void
}
class Interface1 {
<<interface>>
+requiredMethod() ReturnType
}
}
Class1 ..|> Interface1 : implements
Class1 --> Class2 : uses
### Functional/Procedural Code (Modules, Functions)
For functional or procedural code, you have two options:
**Option A: Module Structure Diagram** - Use `classDiagram` to show modules and their exported functions:
```mermaid
---
title: Module Structure for [Component Name]
---
classDiagram
namespace DataProcessing {
class validators {
<<module>>
+validateInput(data) Result~Data, Error~
+validateSchema(schema, data) bool
+sanitize(input) string
}
class transformers {
<<module>>
+parseJSON(raw) Record
+normalize(data) NormalizedData
+aggregate(items) Summary
}
class io {
<<module>>
+readFile(path) string
+writeFile(path, content) void
}
}
transformers --> validators : uses
transformers --> io : reads from
```
**Option B: Data Flow Diagram** - Use `flowchart` to show function pipelines and data transformations:
```mermaid
---
title: Data Pipeline for [Component Name]
---
flowchart LR
subgraph Input
A[readFile]
end
subgraph Transform
B[parseJSON]
C[validateInput]
D[normalize]
E[aggregate]
end
subgraph Output
F[writeFile]
end
A -->|raw string| B
B -->|parsed data| C
C -->|valid data| D
D -->|normalized| E
E -->|summary| F
```
**Option C: Function Dependency Graph** - Use `flowchart` to show which functions call which:
```mermaid
---
title: Function Dependencies for [Component Name]
---
flowchart TB
subgraph Public API
processData[processData]
exportReport[exportReport]
end
subgraph Internal Functions
validate[validate]
transform[transform]
format[format]
cache[memoize]
end
subgraph Pure Utilities
compose[compose]
pipe[pipe]
curry[curry]
end
processData --> validate
processData --> transform
processData --> cache
transform --> compose
transform --> pipe
exportReport --> format
exportReport --> processData
```
### Choosing the Right Diagram
| Code Style | Primary Diagram | When to Use |
| -------------------------------- | -------------------------------- | ------------------------------------------------------- |
| OOP (classes, interfaces) | `classDiagram` | Show inheritance, composition, interface implementation |
| FP (pure functions, pipelines) | `flowchart` | Show data transformations and function composition |
| FP (modules with exports) | `classDiagram` with `<<module>>` | Show module structure and dependencies |
| Procedural (structs + functions) | `classDiagram` | Show data structures and associated functions |
| Mixed | Combination | Use multiple diagrams if needed |
**Note**: According to the [C4 model](https://c4model.com/diagrams), code diagrams are typically only created when needed for complex components. Most teams find system context and container diagrams sufficient. Choose the diagram type that best communicates the code structure regardless of paradigm.
#### Imported: Notes
[Any additional context or important information]
```
#### Imported: Key Distinctions
- **vs C4-Component agent**: Focuses on individual code elements; Component agent synthesizes multiple code files into components
- **vs C4-Container agent**: Documents code structure; Container agent maps components to deployment units
- **vs C4-Context agent**: Provides code-level detail; Context agent creates high-level system diagrams
#### Imported: Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
