ask-decomposition-validation

ask-decomposition-validation is a skill for Claude Code, Codex from yogsoth-ai/north-star-crystallization. It costs 32 tokens per session (162 once invoked), scanned A, a copy of ask-decomposition-validation, Apache-2.0.

A guided review of a GoalTree, which is a breakdown of a large goal into smaller goals. It presents the breakdown and asks whether it is sensible, complete, and correctly prioritised.

In plain words
What is it for?
Use it to confirm the sub-goals, add missing elements, and record the order in which the user wants to tackle them.
Why use it?
It gives the user a chance to find missing work or change priorities before the plan is treated as final.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it to confirm the sub-goals, add missing elements, and record the order in which the user wants to tackle them.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/yogsoth-ai/north-star-crystallization/ask-decomposition-validation
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 yogsoth-ai/north-star-crystallization --skill ask-decomposition-validation
Clone the repo
git clone --depth 1 https://github.com/yogsoth-ai/north-star-crystallization

Made for: Claude Code, Codex.

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 ask-decomposition-validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/yogsoth-ai/north-star-crystallization/ask-decomposition-validation.svg)](https://agentmods.dev/skills/yogsoth-ai/north-star-crystallization/ask-decomposition-validation)
Your own site
<a href="https://agentmods.dev/skills/yogsoth-ai/north-star-crystallization/ask-decomposition-validation"><img src="https://agentmods.dev/badge/skills/yogsoth-ai/north-star-crystallization/ask-decomposition-validation.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 162 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 100% 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 $0.00032 $0.00162
Opus 5 $0.00016 $0.00081
Sonnet 5 $0.00006 $0.00032
Haiku 4.5 $0.00003 $0.00016

Measured 7d ago against content hash 1e5fedac87cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

ask-decomposition-validation 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 7d 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

100% identical to ask-decomposition-validation — 3 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/ask-decomposition-validation/SKILL.md · 30 lines

What it actually says

Ask Decomposition Validation

Get user confirmation of the goal decomposition.

Execution

Dialogue — inline, no subagent.

What to Present

  • GoalTree (simplified visual)
  • Validation results (from validate-leaves)
  • Feasibility assessment (from feasibility-check)

What to Ask (one at a time)

  • Does this decomposition look reasonable to you?
  • Is there anything missing — a sub-goal I haven't captured?
  • Among these sub-goals, what's your priority order? What would you tackle first?

Output

User-confirmed GoalTree + priority ordering.

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. 7d ago First seen · 30 lines · 32 tokens per session scan A 1e5fedac87cd

Subscribe to this mod's changes

ask-decomposition-validation is a skill published in the GitHub repository yogsoth-ai/north-star-crystallization (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 32 tokens to every session and 162 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to ask-decomposition-validation, differing in 3 lines, and is treated as a copy.

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