---
name: yogsoth-ai/occurrence-scoring
source: https://app.decimal.ai/s/yogsoth-ai-occurrence-scoring@1/SKILL.md
source_sha256: 0e6316a6a44b
---

# Occurrence Scoring

Rates each failure mode's occurrence probability on a 1-10 scale.

## Execution

Subagent — spawned via subagent-spawning/spawn-agent.

## Why Subagent

Occurrence estimation requires probabilistic reasoning isolated from severity and detection considerations. Prevents halo effects.

## Input

- **failure_modes**: Failure mode catalog
- **chains**: Cause chains (for root cause probability assessment)

## Output

- **scores**: List of (failure_mode_id, occurrence_score, justification)
- **uncertainty_flags**: Modes where occurrence is highly uncertain

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## Available SOPs

Optional, no fixed order; the final leaf is always a sop.

| SOP | When to use |
| --- | --- |
| spawn-agent | Spawn a customized CC subagent with full MCP tool access. Used by SOPs that declare execution: subagent. |

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