agentmods.dev

first-principles-thinking

first-principles-thinking is a skill for Claude Code from findscripter/everything-skills. It costs 58 tokens per session (1,367 once invoked), scanned A, original, no licence file.

A way to analyse a difficult or unfamiliar problem by starting with basic facts instead of relying on comparisons or common practice. It breaks the problem into simpler assumptions and rebuilds an answer from there.

In plain words
What is it for?
Use it to decompose unfamiliar questions, challenge conventional approaches, and derive a solution from first principles.
Why use it?
It can expose assumptions hidden by habits or analogies and make a complex problem easier to reason about. The description does not promise testing, evidence gathering, or expert validation.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the 00-meta plugin — 43 skills shipped together

not rated 11repo today A scan 58 tokens custom licence

Good fit Use it to decompose unfamiliar questions, challenge conventional approaches, and derive a solution from first principles.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/findscripter/everything-skills/first-principles-thinking
View source ↗ findscripter/everything-skills findscripter.github.io
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 findscripter/everything-skills --skill first-principles-thinking
Clone the repo
git clone --depth 1 https://github.com/findscripter/everything-skills

Made for: Claude Code.

Or install 00-meta, the plugin that ships this one along with the rest of its 43 skills.

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 first-principles-thinking

README.md
[![agentmods](https://agentmods.dev/badge/skills/findscripter/everything-skills/first-principles-thinking/github.svg)](https://agentmods.dev/skills/findscripter/everything-skills/first-principles-thinking)
Your own site
<a href="https://agentmods.dev/skills/findscripter/everything-skills/first-principles-thinking"><img src="https://agentmods.dev/badge/skills/findscripter/everything-skills/first-principles-thinking/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 first-principles-thinking

Your own site · 80×15
<a href="https://agentmods.dev/skills/findscripter/everything-skills/first-principles-thinking"><img src="https://agentmods.dev/badge/skills/findscripter/everything-skills/first-principles-thinking.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,367 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.
Origin unknown 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 $0.00058 $0.01367
Opus 5.5 $0.00023 $0.00547
Sonnet 5.5 $0.00012 $0.00273
Haiku 4.5 $0.00006 $0.00137

Measured today against content hash 794c509e010f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

first-principles-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 today.

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.

00-meta/first-principles-thinking/SKILL.md · 107 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. today First seen · 107 lines · 58 tokens per session scan A 794c509e010f

Subscribe to this mod's changes

first-principles-thinking is a skill published in the GitHub repository findscripter/everything-skills (11 stars, last pushed today), with no licence file. It adds 58 tokens to every session and 1,367 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-11-12.

LLMPlanningReasoningagent-skillsai-agentschinesemcpproblem-solvingthinking
Related

first-principles-thinking compared with skills from other repositories

first-principles-thinking next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
first-principles-thinkingfindscripter/everything-skillsSkill11todaynoneA58Claude Code
thinkellmos-ai/skillsSkill9yesterdayMITA246Claude Code, Codex
deep-reasoningAP3X-Dev/AG3NTSkill105mo agoMITA24Claude Code, Codex
ultrathinkchainlesschain/chainlesschainSkill11todaynoneA31Claude Code
deep-reasoningdesy-design/AG3NTSkill21mo agoMITA24Claude Code, Codex
admet-reasoningsynthetic-sciences/openscienceSkill4.4kyesterdayApache-2.0A47Claude Code, Codex
interview-collectorZchary1106/agent-interview-hubSkill95120d agoMITA32Claude Code, Codex