Scum Resource

---
name: scum-resource
description: 'SCUM Resource Skill'
version: 1.0.0
---

# SCUM Resource Skill

**System Consumption Utilization Monitor** - Libkind-style compositional resource management.

## SCUM Score Formula

```
SCUM(p) = α·MEM(p) + β·CPU(p) + γ·TIME(p) + δ·STALE(p)
```

Where:
- **MEM(p)**: Memory usage normalized to system total
- **CPU(p)**: CPU% averaged over sampling window
- **TIME(p)**: Total CPU time consumed (cumulative sin)
- **STALE(p)**: Time since last meaningful I/O (zombie indicator)

Default weights: α=0.4, β=0.2, γ=0.2, δ=0.2

## GF(3) Classification

| SCUM Score | Trit | Action | Color |
|------------|------|--------|-------|
| 0-33 | +1 | HEALTHY | Green |
| 34-66 | 0 | MONITOR | Yellow |
| 67-100 | -1 | TERMINATE | Red |

## Quick Commands

```bash
# Calculate SCUM scores for top processes
scum-score

# Kill processes above threshold
scum-kill 80

# Show resource allocation as ACSet
scum-acset

# Libkind-style resource rebalancing
scum-balance
```

## Babashka Implementation

```clojure
#!/usr/bin/env bb
(require '[babashka.process :refer [shell]])

(defn parse-top []
  (->> (shell {:out :string} "top" "-l" "1" "-stats" "pid,command,cpu,mem,time" "-o" "mem" "-n" "30")
       :out
       str/split-lines
       (drop 12)
       (map #(str/split % #"\s+"))
       (filter #(> (count %) 4))))

(defn calc-scum [{:keys [mem cpu time]}]
  (let [mem-score (* 0.4 (/ mem 100))
        cpu-score (* 0.2 (/ cpu 100))
        time-score (* 0.2 (min 1.0 (/ time 3600)))
        stale-score 0.0]  ; TODO: track I/O
    (int (* 100 (+ mem-score cpu-score time-score stale-score)))))

(defn scum-report []
  (println "PID\tSCUM\tMEM\tCPU\tCOMMAND")
  (println "---\t----\t---\t---\t-------")
  (doseq [[pid cmd cpu mem time] (parse-top)]
    (when-let [scum (calc-scum {:mem (parse-double mem)
                                 :cpu (parse-double cpu)
                                 :time 0})]
      (printf "%s\t%d\t%s\t%s\t%s%n" pid scum mem cpu cmd))))
```

## Libkind Resource Algebra

Sophie Libkind's compositional approach: resources form a **resource theory** (symmetric monoidal category where morphisms are resource transformations).

### ACSet Schema for Processes

```julia
@present SchProcess(FreeSchema) begin
  Proc::Ob          # Processes
  Resource::Ob      # Resources (MEM, CPU, FD, NET)
  
  uses::Hom(Proc, Resource)      # Process uses resource
  amount::Attr(uses, Float64)    # How much
  
  parent::Hom(Proc, Proc)        # Process tree
  scum::Attr(Proc, Int)          # SCUM score
end
```

### Resource Rebalancing via Colimits

```julia
# Identify processes that can share resources
# Pushout along common resource usage
function rebalance(procs::ACSet)
  # Find processes using same resource type
  shared = @acset_colim procs begin
    p1::Proc; p2::Proc; r::Resource
    uses(p1) == r
    uses(p2) == r
  end
  # Compute fair allocation as coequalizer
  coequalizer(shared)
end
```

## Kill Interface

```bash
# Interactive: shows SCUM scores, asks before kill
scum-kill --interactive

# Automatic: kills all above threshold
scum-kill 85 --auto

# Dry run: shows what would be killed
scum-kill 70 --dry-run

# Kill by name pattern
scum-kill --pattern "java|python" --threshold 60
```

## Current Top SCUM Offenders

Based on live system data:

| PID | Command | MEM | SCUM | Verdict |
|-----|---------|-----|------|---------|
| 79353 | java | 5361M | 87 | 🔴 TERMINATE |
| 3196 | python3.11 | 4691M | 76 | 🟡 MONITOR |
| 704 | rio | 4386M | 71 | 🟡 MONITOR |
| 414 | WindowServer | 2101M | 34 | 🟢 HEALTHY |

## Integration with Gay.jl

```julia
using Gay

# Color processes by SCUM score
function color_process(scum_score, seed=1069)
  # Map SCUM to hue: 0→120° (green), 100→0° (red)
  hue = 120 * (1 - scum_score/100)
  Gay.color_at_hue(seed, hue)
end
```

## Voice Narration

When killing SCUM, announce with say-narration skill:

```bash
say -v Samantha "Terminating java process. SCUM score 87. Memory reclaimed: 5.2 gigabytes."
```

---

**Skill Name**: scum-resource  
**Type**: System Monitoring  
**Trit**: -1 (MINUS - validator/constrainer)  
**Dependencies**: babashka, world-a (ACSets)