systems-thinking

systems-thinking is a skill for Claude Code, Codex from docxology/codomyrmex. It costs 29 tokens per session (217 once invoked), scanned A, original, MIT.

A way to study how a change affects the larger system around it, including dependencies, delays, incentives, and feedback between parts.

In plain words
What is it for?
Use it to map system boundaries and cause-and-effect links, choose where a change will have the most useful effect, and define risks, rollback conditions, and checks.
Why use it?
It helps reveal indirect effects that a local code change may cause, such as extra work, weaker safety, or problems in later workflows.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/docxology/codomyrmex/systems-thinking
Any agent
npx skills add docxology/codomyrmex --skill systems-thinking
Clone the repo
git clone --depth 1 https://github.com/docxology/codomyrmex

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 systems-thinking

README.md
[![agentmods](https://agentmods.dev/badge/skills/docxology/codomyrmex/systems-thinking.svg)](https://agentmods.dev/skills/docxology/codomyrmex/systems-thinking)
Your own site
<a href="https://agentmods.dev/skills/docxology/codomyrmex/systems-thinking"><img src="https://agentmods.dev/badge/skills/docxology/codomyrmex/systems-thinking.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 217 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00029 $0.00217
Opus 5 $0.00015 $0.00109
Sonnet 5 $0.00006 $0.00043
Haiku 4.5 $0.00003 $0.00022

Measured 4d ago against content hash f65629e3c2c1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

systems-thinking 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.

.agents/skills/systems-thinking/SKILL.md · 18 lines

What it actually says

Systems Thinking

Use this skill when a local change may alter agent behavior, tool safety, documentation discoverability, operational load, or downstream workflows.

  1. Define the system boundary, purpose, owners, users, and external dependencies.
  2. Map inputs, outputs, stocks, flows, constraints, and state transitions.
  3. Trace direct and indirect dependencies, feedback loops, delays, bottlenecks, and incentives.
  4. Look for second-order effects: what the change makes easier, harder, more likely, or invisible.
  5. Prefer interventions at high-leverage points: information quality, interfaces, defaults, feedback, and constraints before adding complexity.
  6. Define leading indicators, guardrails, rollback conditions, and a verification plan.

Output a small causal map or table plus the proposed intervention, expected downstream effects, risks, and measurements. Treat local optimization as suspect when it worsens system-level outcomes.

Files

What ships with it

2 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. 4d ago First seen · 18 lines · 29 tokens per session scan A f65629e3c2c1

Subscribe to this mod's changes

systems-thinking is a skill published in the GitHub repository docxology/codomyrmex (11 stars, last pushed today), licensed MIT. It adds 29 tokens to every session and 217 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 2026-08-30.

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