vibe-start-informed

vibe-start-informed is a skill for Claude Code from mracal/vibe-engineering. It costs 45 tokens per session (682 once invoked), scanned A, a copy of vibe-start-informed, MIT.

A research step that looks for real projects, papers, and documented failures before proposing a new feature, architecture, or technology choice.

In plain words
What is it for?
Use it for creative software-design tasks with multiple possible approaches. It is not intended for implementing an already-defined specification or fixing a known bug.
Why use it?
It brings evidence and lessons from existing work into early design decisions.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Good fit Use it for creative software-design tasks with multiple possible approaches. It is not intended for implementing an already-defined specification or fixing a known bug.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mracal/vibe-engineering/vibe-start-informed
Install

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.

Any agent
npx skills add mracal/vibe-engineering --skill vibe-start-informed
Clone the repo
git clone --depth 1 https://github.com/mracal/vibe-engineering

Made for: Claude Code.

Wrote 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.

agentmods badge for vibe-start-informed

README.md
[![agentmods](https://agentmods.dev/badge/skills/mracal/vibe-engineering/vibe-start-informed/github.svg)](https://agentmods.dev/skills/mracal/vibe-engineering/vibe-start-informed)
Your own site
<a href="https://agentmods.dev/skills/mracal/vibe-engineering/vibe-start-informed"><img src="https://agentmods.dev/badge/skills/mracal/vibe-engineering/vibe-start-informed/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.

agentmods 80×15 button for vibe-start-informed

Your own site · 80×15
<a href="https://agentmods.dev/skills/mracal/vibe-engineering/vibe-start-informed"><img src="https://agentmods.dev/badge/skills/mracal/vibe-engineering/vibe-start-informed.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 682 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 91% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00045 $0.00682
Opus 5 $0.00023 $0.00341
Sonnet 5 $0.00009 $0.00136
Haiku 4.5 $0.00005 $0.00068

Measured 9d ago against content hash afb1f7e16a88, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

vibe-start-informed 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.

Origin

This is a copy

91% identical to vibe-start-informed — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/vibe-start-informed/SKILL.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

vibe-start-informed

Other people's documented failures count as observed failure. Research SOTA before proposing anything.

When to Use

  • Brainstorming new features or capabilities
  • Designing architecture for a new sub-system
  • Choosing between technology approaches
  • Any creative/design task where multiple valid approaches exist

Not for: Implementing already-designed specs, bug fixes, or tasks with clear requirements.

The Rule

BEFORE proposing any approach, dispatch a research agent to find real papers, real projects, and real production systems that solve the same (or adjacent) problem.

digraph start_informed {
    "Design question identified" [shape=doublecircle];
    "Decompose into sub-problems" [shape=box];
    "Dispatch research agent (WebSearch)" [shape=box];
    "For each sub-problem find:" [shape=box];
    "Synthesize imported failures" [shape=box];
    "NOW propose approaches" [shape=doublecircle];

    "Design question identified" -> "Decompose into sub-problems";
    "Decompose into sub-problems" -> "Dispatch research agent (WebSearch)";
    "Dispatch research agent (WebSearch)" -> "For each sub-problem find:";
    "For each sub-problem find:" -> "Synthesize imported failures";
    "Synthesize imported failures" -> "NOW propose approaches";
}

Research Requirements

For each sub-problem, find:

Requirement Minimum Example
Named projects 2+ with stars/adoption "Graphiti (23k stars)"
Papers with venue 1+ with year "RAPTOR (ICLR 2024)"
Mechanism described What it actually does Not marketing copy
Known failures What went wrong "Flat RAG failed at multi-hop"
Applicability assessment How it maps to our system Specific, not generic

Red Flags

Thought Reality
"I already know the best approach" You know ONE approach. Research finds others.
"This is too niche for research" If someone built it, someone documented failures.
"Research will slow us down" Uninformed design causes rewrites. Research prevents them.
"The textbook answer is obvious" JK: "These are very very weak suggestions." Do real research.
"Let me just propose something" Proposals without research are guesses with confidence.

Read the full file on GitHub · 70 lines

Changes

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.

  1. 9d ago First seen · 70 lines · 45 tokens per session scan A afb1f7e16a88

Subscribe to this mod's changes

vibe-start-informed is a skill published in the GitHub repository mracal/vibe-engineering (3 stars, last pushed today), licensed MIT. It adds 45 tokens to every session and 682 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to vibe-start-informed, differing in 7 lines, and is treated as a copy.

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