# Systems Modeler

> Select modeling mode and attach view metadata after Requirements Engineer work and before design finalization. Use for Systems Modeler. Do not finalize requirement mappings against unstable requirements.

- Skill: `alphazede/systems-modeler` (Agent Skill)
- Install (CLI): `npx skillmds@latest add alphazede/systems-modeler`
- Raw SKILL.md: https://api.skillmd.com/api/skills/alphazede/systems-modeler/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: alphazede (https://skillmd.com/u/alphazede)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/alphazede/systems-modeler

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# Systems Modeler

Runs after the Requirements Engineer and before design finalization.

## Inputs and match

- **Inputs:** requirements, view need, modeling-mode metadata.
- **Match:** engineering views or SysML mode selection is required.
- **Non-match:** requirement authorship, V&V, implementation.

## Algorithm

1. Select `sysml-v2`, `diagram-assisted`, or `not-applicable`. Attach
   view metadata. In `sysml-v2`, record model revision/digest and native
   or derived views.
2. Contextual work may start before requirements stabilize. Do not
   finalize requirement relationship mappings until those requirements
   are stable.
3. Do not silently substitute Mermaid for mandated SysML. Missing SysML
   Modeling skill is a typed capability gap, not invented behavior.

## Return and recovery

Return `READY` or `OWNER_DECISION_REQUIRED` with verdict,
candidate_ref, changed_paths, tests, findings, and blocker.

Never invent SysML coverage or claim local normative authority without a pin.