Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add markmhendrickson/neotoma --skill create-prototypegit clone --depth 1 https://github.com/markmhendrickson/neotomaWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/markmhendrickson/neotoma/create-prototype)<a href="https://agentmods.dev/skills/markmhendrickson/neotoma/create-prototype"><img src="https://agentmods.dev/badge/skills/markmhendrickson/neotoma/create-prototype/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/markmhendrickson/neotoma/create-prototype"><img src="https://agentmods.dev/badge/skills/markmhendrickson/neotoma/create-prototype.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Agent Snooping · line 6 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00006 | $0.00722 |
| Opus 5.5 | $0.00002 | $0.00289 |
| Sonnet 5.5 | $0.00001 | $0.00144 |
| Haiku 4.5 | $0.00001 | $0.00072 |
Grade A, and why
create-prototype scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
3 near-identical copies found in the catalogue:
- create-prototype — 95% identical, 7 lines differ
- create_prototype — 92% identical, 12 lines differ
- create-prototype — 91% identical, 10 lines differ
How it starts
The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.
name: create-prototype description: Create prototype per foundation command. triggers:
- create prototype
- /create_prototype
- create-prototype
Create Prototype
Create fully functional client-side prototype for Feature Unit {{input:feature_id}}.
Follow foundation/development/feature_unit_workflow.md Step 1 (Prototype Creation). Configuration is read from foundation-config.yaml.
This happens after Checkpoint 0 (spec creation) and before Checkpoint 1 (prototype review).
Implements prototype creation after Checkpoint 0 (spec) is complete. Creates a fully interactive, client-side prototype with mocked APIs.
Trigger
- Spec created with UI requirements (Checkpoint 0 complete, UI changes present) OR
- No UI changes required (skip prototype)
Tasks
-
Load configuration:
- Read
foundation-config.yamlto get feature unit settings - Determine directory structure and prototype paths
- Read
-
Load spec and manifest:
{configured_directory}/in_progress/{{input:feature_id}}/{{input:feature_id}}_spec.md(orcompleted/if completed){configured_directory}/in_progress/{{input:feature_id}}/manifest.yaml(orcompleted/if completed)
-
Check if UI changes present:
- Review spec and manifest for UI components
- Verify UX Requirements section exists in spec (from Checkpoint 0)
- If no UI changes → skip to implementation
- If UI changes present → proceed
-
Create prototype:
- Use configured prototype directory structure (or default:
frontend/src/prototype/) - Create prototype component(s):
{prototype_dir}/components/{{input:feature_id}}_*.tsx - Create mock API fixtures:
{prototype_dir}/fixtures/{{input:feature_id}}_*.ts - Integrate into prototype main file
- Use configured prototype directory structure (or default:
-
Prototype requirements:
- Fully interactive (click, type, navigate)
- All API calls mocked (no real backend)
- All UI states testable (empty, error, loading, success)
- Accessible (keyboard nav, ARIA if applicable)
- Uses existing design system components (if available)
- Documented mock API responses
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 99 lines · 6 tokens per session scan A cb3f1f895a93
create-prototype is a skill published in the GitHub repository markmhendrickson/neotoma (34 stars, last pushed today), licensed MIT. It adds 6 tokens to every session and 722 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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