atomise

atomise is a skill for Claude Code from 0xDarkMatter/claude-mods. It costs 55 tokens per session (1,347 once invoked), scanned A, original, MIT.

A reasoning method that breaks a difficult problem into small questions, checks each answer, and revisits uncertain conclusions.

In plain words
What is it for?
Use it for security analysis, architecture decisions, complex debugging, and multi-step proofs. It is intended for genuinely difficult problems rather than routine questions.
Why use it?
It makes complex analysis easier to verify and limits the effect of an early mistaken assumption.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the claude-mods plugin — 103 skills, 3 commands, 3 agents, 4 hooks shipped together

Good fit Use it for security analysis, architecture decisions, complex debugging, and multi-step proofs. It is intended for genuinely difficult problems rather than routine questions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/0xdarkmatter/claude-mods/atomise
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 0xDarkMatter/claude-mods --skill atomise
Clone the repo
git clone --depth 1 https://github.com/0xDarkMatter/claude-mods

Made for: Claude Code.

Or install claude-mods, the plugin that ships this one along with the rest of its 103 skills, 3 commands, 3 agents, 4 hooks.

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 atomise

README.md
[![agentmods](https://agentmods.dev/badge/skills/0xdarkmatter/claude-mods/atomise.svg)](https://agentmods.dev/skills/0xdarkmatter/claude-mods/atomise)
Your own site
<a href="https://agentmods.dev/skills/0xdarkmatter/claude-mods/atomise"><img src="https://agentmods.dev/badge/skills/0xdarkmatter/claude-mods/atomise.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,347 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 $0.00055 $0.01347
Opus 5 $0.00028 $0.00674
Sonnet 5 $0.00011 $0.00269
Haiku 4.5 $0.00006 $0.00135

Measured 7d ago against content hash a5ba040f6d38, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

atomise 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.

skills/atomise/SKILL.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Atomise - Atom of Thoughts Reasoning

Decompose complex problems into minimal, verifiable "atoms" of thought. Unlike chain-of-thought (linear, error-accumulating), AoT treats each step as independently verifiable and backtracks when confidence drops.

Use for: Security analysis, architectural decisions, complex debugging, multi-step proofs. Don't use for: Simple questions, trivial calculations, information lookup.

/atomise "<problem>" [--light | --deep] [--math | --code | --security | --design]

The Core Loop

1. DECOMPOSE -> Break into atomic subquestions (1-2 sentences each)
2. SOLVE     -> Answer leaf nodes first, propagate up
3. VERIFY    -> Test each hypothesis (counterexample, consistency, domain check)
4. CONTRACT  -> Summarize verified state in 2 sentences (drop history)
5. EVALUATE  -> Confident enough? Done. Too uncertain? Backtrack and try another path.

Repeat until confident or all paths exhausted.


Atoms

Each atom is a minimal unit:

{id, type, content, depends_on[], confidence, verified}
Type Purpose Starting Confidence
premise Given facts 1.0
reasoning Logical inference Inherited from parents
hypothesis Claim to test Max 0.7 until verified
verification Test result Based on test outcome
conclusion Final answer Propagated from chain

Confidence propagates: A child can't be more confident than its least-confident parent.


Confidence (Honest Caveat)

These numbers are heuristic, not calibrated probabilities. They're useful for tracking relative certainty, not for actual risk assessment.

Threshold Meaning
> 0.85 Confident enough to conclude
0.6 - 0.85 Needs more verification
< 0.6 Decompose further or backtrack
< 0.5 Backtrack - this path isn't working

Verification adjusts confidence:

  • Confirmed -> maintain or slight boost
  • Partial -> reduce ~15%
  • Refuted -> major reduction, likely backtrack

Read the full file on GitHub · 177 lines

Files

What ships with it

3 files 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. 7d ago First seen · 177 lines · 55 tokens per session scan A a5ba040f6d38

Subscribe to this mod's changes

atomise is a skill published in the GitHub repository 0xDarkMatter/claude-mods (32 stars, last pushed 14d ago), licensed MIT. It adds 55 tokens to every session and 1,347 once invoked, about $0.0003 per session on Opus 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 2026-08-30.

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