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---
name: function-analysis
description: "FMEA Step 3: Decompose artifact into function tree — identify what each component is supposed to do before analyzing how it can fail."
execution: subagent
prompt: ./prompt.md
input: artifact (string), artifact_type (string), analysis_mode (string)
used-by: [failure-anticipation]
---
# Function Analysis
Decomposes artifact into a hierarchical function tree per FMEA Step 3.
## Execution
Subagent — spawned via subagent-spawning/spawn-agent.
## Why Subagent
Function decomposition requires systematic analytical thinking without premature failure identification. Isolated context prevents jumping to conclusions.
## Input
- **artifact**: The artifact to decompose
- **artifact_type**: Type for tailored decomposition
- **analysis_mode**: "design" (what it should do) or "process" (how it executes)
## Output
- **function_tree**: Hierarchical list of functions and sub-functions
- **function_requirements**: What each function must achieve to succeed
