ultra-think

ultra-think is a command for Claude Code from muyen/vibe-to-prod. It costs 9 tokens per session (541 once invoked), scanned A, original, MIT.

A structured problem-solving command guides extended analysis of a question, including requirements, assumptions, constraints, risks, and several possible solutions.

In plain words
What is it for?
It is for analysing complex technical or product questions from technical, user, and system perspectives.
Why use it?
It helps organise difficult decisions instead of jumping to the first idea without considering alternatives or side effects.

Command for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: model in frontmatter.

Good fit It is for analysing complex technical or product questions from technical, user, and system perspectives.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/muyen/vibe-to-prod/ultra-think
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.

Clone the repo
git clone --depth 1 https://github.com/muyen/vibe-to-prod

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 ultra-think

README.md
[![agentmods](https://agentmods.dev/badge/commands/muyen/vibe-to-prod/ultra-think/github.svg)](https://agentmods.dev/commands/muyen/vibe-to-prod/ultra-think)
Your own site
<a href="https://agentmods.dev/commands/muyen/vibe-to-prod/ultra-think"><img src="https://agentmods.dev/badge/commands/muyen/vibe-to-prod/ultra-think/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 ultra-think

Your own site · 80×15
<a href="https://agentmods.dev/commands/muyen/vibe-to-prod/ultra-think"><img src="https://agentmods.dev/badge/commands/muyen/vibe-to-prod/ultra-think.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 541 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 original No closer match found 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 $0.00009 $0.00541
Opus 5.5 $0.00004 $0.00216
Sonnet 5.5 $0.00002 $0.00108
Haiku 4.5 $0.00001 $0.00054

Measured 12d ago against content hash d4b484b22dcd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ultra-think 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 12d 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.

.claude/commands/ultra-think.md · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Ultra Think Mode

Deep analysis and problem solving mode for complex decisions.

Problem/Question: $ARGUMENTS


Instructions

  1. Initialize Ultra Think Mode

    • Acknowledge the request for enhanced analytical thinking
    • Set context for deep, systematic reasoning
    • Prepare to explore the problem space comprehensively
  2. Parse the Problem

    • Extract the core challenge
    • Identify all stakeholders and constraints
    • Recognize implicit requirements
    • Question assumptions and surface unknowns
  3. Multi-Dimensional Analysis

    Technical Perspective

    • Analyze technical feasibility and constraints
    • Consider scalability, performance, maintainability
    • Evaluate security implications
    • Assess technical debt and future-proofing

    User Perspective

    • Analyze user needs and pain points
    • Consider usability and accessibility
    • Evaluate user experience implications
    • Think about edge cases and user journeys

    System Perspective

    • Consider system-wide impacts
    • Analyze integration points
    • Evaluate dependencies and coupling
    • Think about emergent behaviors
  4. Generate Multiple Solutions

    • Brainstorm at least 3-5 different approaches
    • For each approach, consider:
      • Pros and cons
      • Implementation complexity
      • Resource requirements
      • Potential risks
    • Include both conventional and creative solutions
    • Consider hybrid approaches
  5. Synthesize Insights

    • Combine insights from all perspectives
    • Identify key decision factors
    • Highlight critical trade-offs
    • Present a nuanced view of the problem space
  6. Provide Structured Recommendations

## Problem Analysis
- Core challenge
- Key constraints
- Critical success factors

## Solution Options

### Option 1: [Name]
- Description
- Pros/Cons
- Implementation approach

### Option 2: [Name]
...

## Recommendation
- Recommended approach
- Rationale
- Next steps

Usage Examples

Read the full file on GitHub · 114 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. 12d ago First seen · 114 lines · 9 tokens per session scan A d4b484b22dcd

Subscribe to this mod's changes

ultra-think is a command published in the GitHub repository muyen/vibe-to-prod (34 stars, last pushed 6mo ago), licensed MIT. It adds 9 tokens to every session and 541 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 2026-10-04.