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 skills add PracticalSwan/agent-skills --skill simplification-cascadesgit clone --depth 1 https://github.com/PracticalSwan/agent-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/practicalswan/agent-skills/simplification-cascades)<a href="https://agentmods.dev/skills/practicalswan/agent-skills/simplification-cascades"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/simplification-cascades/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/practicalswan/agent-skills/simplification-cascades"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/simplification-cascades.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What 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 5.1 | $0.00029 | $0.01120 |
| Opus 5 | $0.00015 | $0.00560 |
| Sonnet 5 | $0.00006 | $0.00224 |
| Haiku 4.5 | $0.00003 | $0.00112 |
Grade A, and why
simplification-cascades 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 4d ago.
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 — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Simplification Cascades
Overview
Sometimes one insight eliminates 10 things. Look for the unifying principle that makes multiple components unnecessary.
Core principle: "Everything is a special case of..." collapses complexity dramatically.
Quick Reference
| Symptom | Likely Cascade |
|---|---|
| Same thing implemented 5+ ways | Abstract the common pattern |
| Growing special case list | Find the general case |
| Complex rules with exceptions | Find the rule that has no exceptions |
| Excessive config options | Find defaults that work for 95% |
The Pattern
Look for:
- Multiple implementations of similar concepts
- Special case handling everywhere
- "We need to handle A, B, C, D differently..."
- Complex rules with many exceptions
Ask: "What if they're all the same thing underneath?"
Examples
Cascade 1: Stream Abstraction
Before: Separate handlers for batch/real-time/file/network data Insight: "All inputs are streams - just different sources" After: One stream processor, multiple stream sources Eliminated: 4 separate implementations
Cascade 2: Resource Governance
Before: Session tracking, rate limiting, file validation, connection pooling (all separate) Insight: "All are per-entity resource limits" After: One ResourceGovernor with 4 resource types Eliminated: 4 custom enforcement systems
Cascade 3: Immutability
Before: Defensive copying, locking, cache invalidation, temporal coupling Insight: "Treat everything as immutable data + transformations" After: Functional programming patterns Eliminated: Entire classes of synchronization problems
Process
- List the variations - What's implemented multiple ways?
- Find the essence - What's the same underneath?
- Extract abstraction - What's the domain-independent pattern?
- Test it - Do all cases fit cleanly?
- Measure cascade - How many things become unnecessary?
Red Flags You're Missing a Cascade
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago Changed a008b5cabf84
- 6d ago Changed eb46a0e10e9a
- 9d ago First seen · 125 lines · 29 tokens per session scan A 77b3afe265d0
simplification-cascades is a skill published in the GitHub repository PracticalSwan/agent-skills (14 stars, last pushed 4d ago), licensed MIT. It adds 29 tokens to every session and 1,120 once invoked, about $0.0001 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 2026-09-03.
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