C4 Context V2

C4 Context Level: System Context

Overview

This public intake copy packages plugins/antigravity-awesome-skills/skills/c4-context 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 Context Level: System Context

Imported source sections that did not map cleanly to the public headings are still preserved below or in the support files. Notable imported sections: System Overview, Personas, System Features, User Journeys, External Systems and Dependencies, System Context Diagram.

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 context level: system context tasks or workflows
• Needing guidance, best practices, or checklists for c4 context level: system context
• The task is unrelated to c4 context level: system context
• You need a different domain or tool outside this scope
• Use when the request clearly matches the imported source intent: Expert C4 Context-level documentation specialist. Creates high-level system context diagrams, documents personas, user journeys, system features, and external dependencies.
• Use when the operator should preserve upstream workflow detail instead of rewriting the process from scratch.

Operating Table

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.

1. Clarify goals, constraints, and required inputs.
2. Apply relevant best practices and validate outcomes.
3. Provide actionable steps and verification.
4. If detailed examples are required, open resources/implementation-playbook.md.
5. Confirm the user goal, the scope of the imported workflow, and whether this skill is still the right router for the task.
6. Read the overview and provenance files before loading any copied upstream support files.
7. 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: System Overview

Short Description

[One-sentence description of what the system does]

Long Description

[Detailed description of the system's purpose, capabilities, and the problems it solves]

Examples

Example 1: Ask for the upstream workflow directly

Use @c4-context-v2 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-context-v2 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-context-v2 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-context-v2 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

• "Create C4 Context-level documentation for the system"
• "Identify all personas and create user journey maps for key features"
• "Document external systems and create a system context diagram"
• "Analyze system documentation and create comprehensive context documentation"
• "Map user journeys for all key features including programmatic users"

Imported: Output Examples

When creating context documentation, provide:

• Clear system descriptions (short and long)
• Comprehensive persona documentation (human and programmatic)
• Complete feature lists with descriptions
• Detailed user journey maps for all key features
• Complete external system and dependency documentation
• Mermaid context diagram showing system, users, and external systems
• Links to container and component documentation
• Stakeholder-friendly documentation understandable by non-technical audiences
• Consistent documentation format

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/skills/c4-context, 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.

Imported Reference Notes

Imported: Personas

[Persona Name]

• Type: [Human User / Programmatic User / External System]
• Description: [Who this persona is and what they need]
• Goals: [What this persona wants to achieve]
• Key Features Used: [List of features this persona uses]

Imported: System Features

[Feature Name]

• Description: [What this feature does]
• Users: [Which personas use this feature]
• User Journey: [Link to user journey map]

Imported: User Journeys

[Feature Name] - [Persona Name] Journey

3. ...

[External System] Integration Journey

2. ...

Imported: External Systems and Dependencies

[External System Name]

• Type: [Database, API, Service, Message Queue, etc.]
• Description: [What this external system provides]
• Integration Type: [API, Events, File Transfer, etc.]
• Purpose: [Why the system depends on this]

Imported: System Context Diagram

[Mermaid diagram showing system, users, and external systems]

Imported: Context Diagram Template

According to the C4 model, a System Context diagram shows the system as a box in the center, surrounded by its users and the other systems that it interacts with. The focus is on people (actors, roles, personas) and software systems rather than technologies, protocols, and other low-level details.

Use proper Mermaid C4 syntax:

C4Context
    title System Context Diagram

    Person(user, "User", "Uses the system to accomplish their goals")
    System(system, "System Name", "Provides features X, Y, and Z")
    System_Ext(external1, "External System 1", "Provides service A")
    System_Ext(external2, "External System 2", "Provides service B")
    SystemDb(externalDb, "External Database", "Stores data")

    Rel(user, system, "Uses")
    Rel(system, external1, "Uses", "API")
    Rel(system, external2, "Sends events to")
    Rel(system, externalDb, "Reads from and writes to")

Key Principles (from c4model.com):

• Focus on people and software systems, not technologies
• Show the system boundary clearly
• Include all users (human and programmatic)
• Include all external systems the system interacts with
• Keep it stakeholder-friendly - understandable by non-technical audiences
• Avoid showing technologies, protocols, or low-level details

Imported: Key Distinctions

• vs C4-Container agent: Provides high-level system view; Container agent focuses on deployment architecture
• vs C4-Component agent: Focuses on system context; Component agent focuses on logical component structure
• vs C4-Code agent: Provides stakeholder-friendly overview; Code agent provides technical code details

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.