never-again

Analyze mistakes across customization layers and implement approved systemic repairs.

Updated Mar 18, 2026
One-click install
npx skills add https://github.com/dornstein/wingman --skill never-again
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: never-again
Source: https://github.com/dornstein/wingman/tree/main/skills/never-again
Command: npx skills add https://github.com/dornstein/wingman --skill never-again

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Root-cause a mistake and implement systemic repairs across the project's customization layers so the same class of mistake doesn't recur.

Core Features & Use Cases

  • Root-cause analysis across user prompts, conversation history, and project configurations.
  • Systemic repairs across customization layers (instructions, skills, agents, memory, docs) to prevent recurrence.
  • Guided, approvable fixes that are minimal, testable, and version-controlled.

Quick Start

Describe the mistake, or say "from this session" to analyze the most recent failure in conversation history.

Frequently Asked Questions about never-again

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I perform root-cause analysis on recurring AI agent mistakes?▼

Root-cause analysis on AI agent mistakes surveys customization layers like instructions, memory, and docs to identify systemic factors. It proposes targeted repairs and implements version-controlled changes to prevent the same class of error from recurring.

What is the best way to harden processes after a project failure?▼

Harden processes after a failure by implementing systemic repairs across customization layers. Use guided, approvable fixes that are minimal and testable, enforcing version-controlled changes to add reusable guardrails for postmortem workflows.

Can I automate postmortem workflows using conversation history?▼

Yes, you can automate postmortem workflows using conversation history. By analyzing recent session failures, the system identifies root causes across project configurations and applies version-controlled, testable fixes to prevent future recurrence.

How do I prevent an AI agent from repeating the same mistake?▼

Prevent an AI agent from repeating mistakes by implementing systemic repairs across its customization layers. This involves adding reusable guardrails, updating agent instructions, and enforcing version-controlled changes after a root-cause analysis.

Does root-cause analysis support version-controlled changes for agent instructions?▼

Yes, root-cause analysis supports version-controlled changes for agent instructions. It enforces testable modifications across customization layers and implements them only upon approval, ensuring safe and traceable process hardening.