lamina-systems

lamina-systems is a skill for Claude Code, Codex from aryaniyaps/lamina. It costs 74 tokens per session (415 once invoked), scanned A, original, Apache-2.0.

A systems-thinking guide for understanding how parts of a product affect one another and change over time. It covers feedback, delays, recurring problems, and ways to change rules safely.

In plain words
What is it for?
Use it to map product structure, diagnose reinforcing or balancing feedback, identify recurring system traps, choose where to intervene, and plan safer rule changes.
Why use it?
It helps explain why local fixes can fail, backfire, or move the problem elsewhere. It provides named lenses for finding causes and choosing higher-impact changes.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to map product structure, diagnose reinforcing or balancing feedback, identify recurring system traps, choose where to intervene, and plan safer rule changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aryaniyaps/lamina/lamina-systems
Install

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.

Any agent
npx skills add aryaniyaps/lamina --skill lamina-systems
Clone the repo
git clone --depth 1 https://github.com/aryaniyaps/lamina

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for lamina-systems

README.md
[![agentmods](https://agentmods.dev/badge/skills/aryaniyaps/lamina/lamina-systems/github.svg)](https://agentmods.dev/skills/aryaniyaps/lamina/lamina-systems)
Your own site
<a href="https://agentmods.dev/skills/aryaniyaps/lamina/lamina-systems"><img src="https://agentmods.dev/badge/skills/aryaniyaps/lamina/lamina-systems/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.

agentmods 80×15 button for lamina-systems

Your own site · 80×15
<a href="https://agentmods.dev/skills/aryaniyaps/lamina/lamina-systems"><img src="https://agentmods.dev/badge/skills/aryaniyaps/lamina/lamina-systems.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 415 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00074 $0.00415
Opus 5 $0.00037 $0.00208
Sonnet 5 $0.00015 $0.00083
Haiku 4.5 $0.00007 $0.00042

Measured 10d ago against content hash 3058d463bd51, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

lamina-systems 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 10d 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.

skills/lamina-systems/SKILL.md · 32 lines

What it actually says

Lamina Systems

Reference-loading protocol

  1. Match the request's primary system question to one row below.
  2. Open that linked reference before answering. Add another only when a second question materially changes the answer; do not preload the directory.
  3. Start the response with Using lamina-systems: <topic path(s)> so the selected system lens is auditable.

Topic index

System signal Read Adds
Need to map purpose, elements, relationships, stocks, flows, or delays System Structure a coherent system boundary before screen design
Local fixes recur, backfire, shift burden, or create unfair resource use System Traps named structural failure patterns and responses
Need to choose between copy/UI tweaks, information changes, rules, or goals Leverage Points intervention ranking by structural leverage
Outputs amplify or balance future inputs, especially with visible delay Feedback Loops reinforcing/balancing loops and oscillation risks
Need safe change under uncertainty or protection against rule regression Evolutionary Rules reversible choices, deferred commitment, and invariant rechecks

Working rule

Use the smallest sufficient reference set. Diagnose recurring behavior with system traps + feedback loops, then use leverage points to choose an intervention. Add evolutionary rules only when the question includes rollout, reversibility, or future change.

Files

What ships with it

5 files 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.

Changes

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.

  1. 10d ago First seen · 32 lines · 74 tokens per session scan A 3058d463bd51

Subscribe to this mod's changes

lamina-systems is a skill published in the GitHub repository aryaniyaps/lamina (114 stars, last pushed 5d ago), licensed Apache-2.0. It adds 74 tokens to every session and 415 once invoked, about $0.0004 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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