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.
npx agentmods add skills/vudovn/ag-kit/simplify-codenpx skills add vudovn/ag-kit --skill simplify-codegit clone --depth 1 https://github.com/vudovn/ag-kitWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00032 | $0.00940 |
| Opus 5 | $0.00016 | $0.00470 |
| Sonnet 5 | $0.00006 | $0.00188 |
| Haiku 4.5 | $0.00003 | $0.00094 |
Grade A, and why
simplify-code 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Simplify Code — Reduce Unnecessary Complexity
The best code is the code you don't have to write. The second best is the code anyone can read.
Core Principle
Complexity is a cost. Every abstraction, every indirection, every clever pattern
adds cognitive load. Simplify ruthlessly unless complexity serves a clear purpose.
Simplification Checklist
1. Unnecessary Abstractions
| Smell | Simplification |
|---|---|
| Wrapper class that just delegates | Remove wrapper, use the inner class directly |
| Factory that creates only one type | Replace with direct constructor |
| Strategy pattern with one strategy | Replace with simple function |
| Interface with one implementation | Remove interface, use the class |
| Abstract class with one child | Merge into the child class |
| Config object for 2 values | Use function parameters |
2. Dead Code
| Smell | Action |
|---|---|
| Unused imports | Remove |
| Unreachable branches | Remove (check tests first) |
| Commented-out code | Remove (it's in git history) |
| Unused variables/functions | Remove |
| TODO comments older than 6 months | Remove or create issue |
| Feature flags for launched features | Remove flag, keep the code |
3. Deep Nesting
// ❌ Before: 4 levels deep
function process(data) {
if (data) {
if (data.items) {
for (const item of data.items) {
if (item.active) {
doSomething(item)
}
}
}
}
}
// ✅ After: Early returns + filter
function process(data) {
if (!data?.items) return
data.items
.filter(item => item.active)
.forEach(doSomething)
}
4. Over-Parameterized Functions
// ❌ Before: 8 parameters
function createUser(name, email, age, role, dept, active, verified, avatar) { }
// ✅ After: Object parameter
function createUser(opts: CreateUserOpts) { }
5. Premature Optimization
| Smell | Simplification |
|---|---|
| Custom cache for <100 items | Remove cache, measure first |
| Memoization on cheap functions | Remove memo |
| Lazy loading for small modules | Use direct import |
| Complex state machine for 3 states | Use simple if/else or switch |
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.
- yesterday First seen · 133 lines · 32 tokens per session scan A 1e2ab8d06593
simplify-code is a skill published in the GitHub repository vudovn/ag-kit (8,160 stars, last pushed yesterday), licensed MIT. It adds 32 tokens to every session and 940 once invoked, about $0.0002 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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