Concept Prototyper
Turn semantic core, business constraints, and user feedback into a site concept and throwaway wireframe prototype before visual design. Use when a public site project needs a pre-design concept, content hierarchy, concept conflicts, or business-idea feedback before Stitch, Pencil, Figma, or code.
Install
$ agentstack add skill-sergekostenchuk-ui-ux-agent-skill-system-concept-prototyper ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-sergekostenchuk-ui-ux-agent-skill-system-concept-prototyper) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Concept Prototyper
This skill creates the concept bridge between SEO/semantic structure and UI design. Its prototype is a feedback artifact, not production code.
Operating Modes
concept: createdocs/site-concept.mdfrom semantic core and business logic.wireframe: create a throwaway HTML/wireframe prototype for feedback.feedback: structure user feedback intoreports/business-concept-feedback.json.conflict: producereports/concept-conflicts.mdand route unresolved conflicts to council.
Required Workflow
- Read [references/concept-prototype-contract.md](references/concept-prototype-contract.md).
- Load semantic core, project brief, known business facts, and existing content if available.
- Build a content hierarchy: primary journey, page map, required facts, trust signals, CTA logic.
- If prototyping, create a clearly non-production wireframe artifact with sections marked by source reason.
- Collect or structure feedback and merge it with semantic constraints.
- If conflicts remain, route to
senior-ui-ux-orchestratorcouncil mode before design exploration. - If conflicts are clear, hand off to
tech-stack-selector, then design exploration.
Non-Negotiable
The prototype is disposable. Do not use it as the production implementation base unless the user separately approves a rebuild/refactor plan.
Handoff Shape
Concept path:
Prototype path:
Feedback path:
Conflicts path:
Decision: clear | council-required
Next skills:Validation
python3 $CODEX_HOME/skills/.system/skill-creator/scripts/quick_validate.py $CODEX_HOME/skills/concept-prototyper
python3 $CODEX_HOME/skills/senior-skill-architect/scripts/lint_production_skill.py $CODEX_HOME/skills/concept-prototyperSource & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: sergekostenchuk
- Source: sergekostenchuk/ui-ux-agent-skill-system
- License: Apache-2.0
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.