not-so-fast

not-so-fast is a skill for Claude Code from JakeTRogers/my-awesome-copilot. It costs 58 tokens per session (3,812 once invoked), scanned A, original, no licence file.

A constructive challenge skill that questions a plan, design, or decision after first asking about it, then tests it using methods such as a pre-mortem or red-team review.

In plain words
What is it for?
It is for reviewing plans and choices, comparing options, estimating consequences, and producing a rated verdict.
Why use it?
It exposes risks, weak assumptions, and alternative options before a decision is acted on.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Good fit It is for reviewing plans and choices, comparing options, estimating consequences, and producing a rated verdict.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jaketrogers/my-awesome-copilot/not-so-fast
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 JakeTRogers/my-awesome-copilot --skill not-so-fast
Clone the repo
git clone --depth 1 https://github.com/JakeTRogers/my-awesome-copilot

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 not-so-fast

README.md
[![agentmods](https://agentmods.dev/badge/skills/jaketrogers/my-awesome-copilot/not-so-fast/github.svg)](https://agentmods.dev/skills/jaketrogers/my-awesome-copilot/not-so-fast)
Your own site
<a href="https://agentmods.dev/skills/jaketrogers/my-awesome-copilot/not-so-fast"><img src="https://agentmods.dev/badge/skills/jaketrogers/my-awesome-copilot/not-so-fast/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 not-so-fast

Your own site · 80×15
<a href="https://agentmods.dev/skills/jaketrogers/my-awesome-copilot/not-so-fast"><img src="https://agentmods.dev/badge/skills/jaketrogers/my-awesome-copilot/not-so-fast.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,812 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 unknown 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 $0.00058 $0.03812
Opus 5.5 $0.00023 $0.01525
Sonnet 5.5 $0.00012 $0.00762
Haiku 4.5 $0.00006 $0.00381

Measured 5d ago against content hash 074feab9dfa0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

not-so-fast 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 5d 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.

skills/not-so-fast/SKILL.md · 213 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 213 lines · 58 tokens per session scan A 074feab9dfa0

Subscribe to this mod's changes

not-so-fast is a skill published in the GitHub repository JakeTRogers/my-awesome-copilot (1 stars, last pushed 5d ago), with no licence file. It adds 58 tokens to every session and 3,812 once invoked, about $0.0002 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 2026-10-30.

Related

Other skills, from other repositories

performance-optimization-dotnet

Optimizes .NET/C# application performance — measure first with BenchmarkDotNet / dotnet-counters / dotnet-trace / PerfView, then fix the specific bottleneck (EF Core N+1, sync-over-async, Gen2 GC pressure, thread-pool starvation, allocation hotspots, unbounded queries, missing pagination, Kestrel misconfiguration).…

peterblazejewicz/claude-plugins · 105 tokens

test-driven-development

Drives .NET/C# development with tests — RED/GREEN/REFACTOR with xUnit (v2 or v3) or MSTest, the Prove-It Pattern for bug fixes, the test pyramid with WebApplicationFactory for integration and Playwright/Avalonia.Headless for E2E. Supports both VSTest and Microsoft.Testing.Platform (MTP) runners. Use when implementing…

peterblazejewicz/claude-plugins · 103 tokens

api-and-interface-design

Guides stable API and interface design for .NET/C# — HTTP endpoints (Minimal APIs or controllers), library surface area, public records/interfaces, EF Core-backed contracts. Use when designing APIs, module boundaries, MyApp.Contracts DTOs, or any public interface where backward compatibility matters.

peterblazejewicz/claude-plugins · 64 tokens

ci-cd-and-automation

Automates CI/CD pipelines for .NET/C# projects — GitHub Actions (or Azure DevOps Pipelines) with setup-dotnet, quality gates (dotnet format --verify-no-changes, dotnet test, dotnet build -warnaserror, dotnet list package --vulnerable), EF Core migrations, preview deploys, feature-flag-driven rollouts, rollback. Use…

peterblazejewicz/claude-plugins · 105 tokens

code-review-and-quality

Conducts multi-axis code review for .NET/C# changes (correctness, readability, architecture, security, performance). Use before merging any change. Use when reviewing code written by yourself, another agent, or a human. Use when you need to assess code quality across multiple dimensions before it enters the main…

peterblazejewicz/claude-plugins · 68 tokens

code-simplification

Simplifies .NET/C# code for clarity without changing behavior. Use when refactoring C# code that works but is harder to read, maintain, or extend than it should be. Use when reviewing code that has accumulated unnecessary complexity. Preserves exact behavior; examples cover TypeScript, Python, React, and C#.

peterblazejewicz/claude-plugins · 69 tokens