pyramid-principle

pyramid-principle is a skill for Claude Code from HirogaKatageri/hirokata. It costs 120 tokens per session (1,252 once invoked), scanned A, original, MIT.

A writing method that puts the main conclusion first, followed by grouped reasons and supporting evidence. It is also called the Pyramid Principle.

In plain words
What is it for?
It helps structure board updates, executive messages, investor materials, decision memos, and other communications where the bottom line should come first.
Why use it?
It helps busy readers understand the decision or recommendation immediately, then inspect the reasoning underneath it.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Part of the storytelling plugin — 7 skills, 2 agents shipped together

Good fit It helps structure board updates, executive messages, investor materials, decision memos, and other communications where the bottom line should come first.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hirogakatageri/hirokata/pyramid-principle
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 HirogaKatageri/hirokata --skill pyramid-principle
Clone the repo
git clone --depth 1 https://github.com/HirogaKatageri/hirokata

Made for: Claude Code.

Or install storytelling, the plugin that ships this one along with the rest of its 7 skills, 2 agents.

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 pyramid-principle

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/hirogakatageri/hirokata/pyramid-principle"><img src="https://agentmods.dev/badge/skills/hirogakatageri/hirokata/pyramid-principle.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 120 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,252 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 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 $0.00120 $0.01252
Opus 5 $0.00060 $0.00626
Sonnet 5 $0.00024 $0.00250
Haiku 4.5 $0.00012 $0.00125

Measured 11d ago against content hash 9e69a20e47ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

pyramid-principle 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 11d 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.

plugins/storytelling/skills/pyramid-principle/SKILL.md · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pyramid Principle — Lead With the Answer

Barbara Minto (McKinsey). Busy decision-makers don't want your reasoning journey — they want the conclusion, then the support if they choose to dig. So invert the natural order: state the answer first, then the grouped arguments, then the data underneath. Ideas form a pyramid where every level summarizes the level below.

              ┌──────────────────────────┐
              │   GOVERNING THOUGHT        │   the answer / recommendation
              └──────────────────────────┘
             ╱            │            ╲
     ┌──────────┐  ┌──────────┐  ┌──────────┐
     │ Argument │  │ Argument │  │ Argument │   3–5, MECE
     └──────────┘  └──────────┘  └──────────┘
       │  │  │        │  │  │        │  │  │
     data data      data data      data data     evidence

The Structure

  1. Governing thought. The single main message — usually a recommendation or answer. One sentence. Everything below exists to support it.
  2. Key arguments (3–5), MECE. Mutually Exclusive (no overlap) and Collectively Exhaustive (nothing important missing). Each argument is itself a mini-conclusion, not a topic label.
  3. Evidence. Data, facts, and examples supporting each argument. This is where detail lives — out of the reader's way until they want it.

The SCQA opener (optional but powerful) sets up the governing thought in a way the reader already agrees with:

  • Situation — the stable context everyone accepts.
  • Complication — what changed or went wrong that demands a response.
  • Question — the question the complication raises (often implicit).
  • Answer — your governing thought. Then the pyramid unfolds beneath it.

When to use it (and when not)

Use it for: board and exec presentations, investor updates, decision and recommendation memos, strategy docs, executive summaries, any "we need a yes/no" moment.

Reach for something else when: you want to inspire or set a vision (→ golden-circle), you're telling a transformation story (→ pixar-pitch), or you need a 30-second hook (→ abt). The Pyramid is for clarity and decisions, not for emotion.

Read the full file on GitHub · 100 lines

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. 11d ago First seen · 100 lines · 120 tokens per session scan A 9e69a20e47ab

Subscribe to this mod's changes

pyramid-principle is a skill published in the GitHub repository HirogaKatageri/hirokata (5 stars, last pushed 2d ago), licensed MIT. It adds 120 tokens to every session and 1,252 once invoked, about $0.0006 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 2026-08-31.

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