About atomise
An agent skill for decomposing complex questions into small, verifiable reasoning steps, with confidence tracking and backtracking. It is intended for tasks such as security analysis, architectural decisions, and complex debugging, not simple lookups.
Key features
- 01Atomic problem decomposition
- 02Verification of hypotheses
- 03Heuristic confidence tracking
- 04Backtracking when confidence drops
- 05Light, standard, and deep modes
Use cases
- 01Analyzing security questions
- 02Evaluating architecture decisions
- 03Debugging complex behavior
- 04Checking multi-step proofs
Install
Copy the command and run it in a terminal.
npx skills add https:/ / github.com/ 0xdarkmatter/ claude-mods --skill atomiseAfter installing, type/atomisein Claude Code to confirm it loaded.
Bundled files
References and scripts installed along with SKILL.md.
assets/.gitkeepreferences/.gitkeepscripts/.gitkeepDetails
From the project READMEAtomise - 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
Modes
Depth:
--light- Fast: max 3 levels, 0.70 confidence threshold- (default) - Standard: max 5 levels, 0.85 threshold
--deep- Exhaustive: max 7 levels, 0.90 threshold
Domain (adjusts verification style):
--math- Arithmetic checks, proof validation, boundary tests--code- Type checking, invariant verification, test generation--security- Threat modeling, attack surface, adversarial thinking--design- Tradeoff analysis, constraint satisfaction, feasibility
Output
ANSWER: {result}
CONFIDENCE: {0.0-1.0} - {why}
KEY CHAIN: P1 -> R1 -> H1 -> V1 -> C1
ATOMS:
| id | type | content | conf | verified |
|----|------|---------|------|----------|
| P1 | premise | Given: ... | 1.0 | Y |
| R1 | reasoning | Therefore: ... | 0.95 | Y |
| ... | ... | ... | ... | ... |
RISKS: {what could change this}
Add --verbose for full trace, --quiet for just the answer.
Execution Guide
Phase 0: Setup
- Restate the problem in one sentence
- Extract premises as atoms (given facts = 1.0, assumptions = 0.6)
- Sketch approaches: Direct solve? Decompose? Reframe? Pick best.
Phase 1+: Iterate
- Atomicity gate: Can you answer from verified atoms? Yes -> solve. No -> decompose.
- Decompose: Build dependency tree of atomic subquestions
- Solve + Verify: Leaves first, propagate up. Every hypothesis needs verification.
- Contract: Summarize in <=2 sentences. Drop everything else.
- Evaluate:
- Confident? -> Terminate
- Uncertain but viable? -> Continue
- Low confidence? -> Backtrack, try alternative
Backtracking
When a path yields confidence < 0.5 after verification:
- Prune that branch
- Restore to last contracted state
- Try alternative from initial sketch
Examples
# Complex debugging
/atomise "Why does this function return null on the second call?" --code
# Security review
/atomise "Is this authentication flow vulnerable to session fixation?" --security
# Architecture decision
/atomise "Should we use event sourcing for this domain?" --deep --design
# Quick decision (light mode)
/atomise "Redis vs Memcached for this cache layer?" --light
Anti-Patterns
BAD: /atomise "What's 2+2?" -> Just answer it
BAD: /atomise "Rewrite this function" -> That's implementation, not reasoning
BAD: Forcing conclusion despite low confidence -> Let it backtrack
GOOD: /atomise for genuine uncertainty requiring structured decomposition
Remember
- Atomic = minimal. 1-2 sentences per atom.
- Verify everything. Hypotheses need tests.
- Contract aggressively. Keep only what's needed for next step.
- Backtrack freely. Low confidence means try another path.
- Confidence is heuristic. Useful for structure, not actual probabilities.