fairy-tale

Enforce budgeted, validation-gated workflows for autonomous agent execution.

18|3|Updated Jun 13, 2026
One-click install
npx skills add https://github.com/bonginkan/fairy_tale --skill fairy-tale
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fairy-tale
Source: https://github.com/bonginkan/fairy_tale/tree/main/plugins/fairy-tale/skills/fairy-tale
Command: npx skills add https://github.com/bonginkan/fairy_tale --skill fairy-tale

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Unstructured agent runs often exceed budgets, skip validation, or miss hidden gaps in code, documents, or requirements. This Skill imposes a disciplined harness with budget caps, evidence tracking, and multi-layer validation to keep complex workflows reliable and reproducible.

Core Features & Use Cases

  • Budgeted Execution: Define time, tool-call, and context limits before starting long tasks.
  • Validation Gates: Enforce residency checks, closure checks, negative-space discovery, and e2e completion discipline.
  • Use Case: Run a multi-file codebase migration with scoped edits and rollback paths, or execute a defensive security review with authorized-target enforcement and responsible-disclosure framing.

Quick Start

Invoke the fairy-tale skill to run your next complex agent workflow with automatic budget limits, evidence maps, and validation gates.

Frequently Asked Questions about fairy-tale

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

FAQPage Schema
How do I keep autonomous agent workflows from exceeding time and context budgets?

Budgeted agent workflows enforce time, tool-call, and context limits before starting long tasks to prevent unstructured runs from spiraling out of control. This harness applies caps automatically, ensuring complex coding tasks stay within resource boundaries.

What is evidence-driven validation for codebase migrations?

Evidence-driven validation tracks proof of correct execution throughout codebase migrations by enforcing residency checks, closure checks, and negative-space discovery. This ensures scoped edits are verified and no hidden requirement gaps remain in the migrated code.

How do I enforce validation gates in autonomous agent execution?

You enforce validation gates in autonomous agent execution by applying multi-layer checks like residency verification, closure checks, and e2e completion discipline. These gates ensure complex workflows remain reliable and reproducible before concluding.

Can I use a validation-gated workflow harness for defensive security reviews?

Yes, a validation-gated workflow harness supports defensive security reviews by enforcing authorized-target constraints and responsible-disclosure framing. It applies evidence tracking and budgeted execution to keep security audits structured and reproducible.

What is negative-space discovery in long coding tasks?

Negative-space discovery identifies hidden gaps and missing requirements in long coding tasks. By enforcing this validation check, the workflow harness prevents agents from skipping untested edge cases or incomplete documentation during complex migrations.