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 Dqz00116/skill-lib --skill mvp-designgit clone --depth 1 https://github.com/Dqz00116/skill-libWrote 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/dqz00116/skill-lib/mvp-design)<a href="https://agentmods.dev/skills/dqz00116/skill-lib/mvp-design"><img src="https://agentmods.dev/badge/skills/dqz00116/skill-lib/mvp-design/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/dqz00116/skill-lib/mvp-design"><img src="https://agentmods.dev/badge/skills/dqz00116/skill-lib/mvp-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00023 | $0.01334 |
| Opus 5 | $0.00012 | $0.00667 |
| Sonnet 5 | $0.00005 | $0.00267 |
| Haiku 4.5 | $0.00002 | $0.00133 |
Grade A, and why
mvp-design 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MVP Design Skill
Overview
This skill guides the design of minimal, production-ready code prototypes with clear architecture and self-documenting code, emphasizing design decisions over implementation details.
Design minimal, production-ready code prototypes with clear architecture and self-documenting code.
When to Use
Use this skill when you need to:
- Design a new module or subsystem from scratch
- Create a minimal viable prototype (MVP) for rapid iteration
- Establish coding patterns and architectural decisions
- Plan implementation before writing actual code
- Design replacement systems alongside existing ones
Core Principles
1. Code as Documentation
- Code itself is readable - clear naming, simple structure
- Minimal comments - code explains itself
- Self-documenting functions - verb-based naming, obvious parameters
2. Documentation as Design
- No code in documentation - code lives in the project
- Document "why", not "how" - architectural decisions and rationale
- Focus on design patterns - data flow, component interaction
- Interface contracts - what goes in, what comes out
3. Minimal Viable Scope
- 5-6 files maximum - forces focus on essentials
- 500 lines of code - small enough to complete quickly
- Core functionality only - defer edge cases to later phases
4. Architectural Alignment
- Use existing infrastructure - leverage project's patterns
- Follow established conventions - naming, structure, serialization
- Zero-intrusive design - parallel development, not replacement
Workflow
Phase 1: Architecture Definition
-
Identify Core Data Structure
- What is the fundamental entity?
- Example: MissionInstance (id, kind, status, progress, target)
-
Define Primary Operations
- What actions can be performed?
- Example: Participate, AddProgress, AcceptReward
-
Map Infrastructure Dependencies
- What existing systems to leverage?
- Example: Tinker serialization, SharedTable config, NetMessage
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.
- 9d ago First seen · 226 lines · 23 tokens per session scan A b5661ee9fe59
mvp-design is a skill published in the GitHub repository Dqz00116/skill-lib (22 stars, last pushed 3mo ago), licensed MIT. It adds 23 tokens to every session and 1,334 once invoked, about $0.0001 per session on Opus 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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