council-taleb-medium

council-taleb-medium is an agent for Claude Code from CurtisThe/three-pillars-plugin. It costs 27 tokens per session (1,126 once invoked), scanned A, a copy of council-taleb, Apache-2.0.

A medium-effort reasoning agent based on Nassim Nicholas Taleb's ideas about uncertainty and fragility. It examines how a system could be exposed to specific bad outcomes rather than relying on confident predictions.

In plain words
What is it for?
Use it to assess robustness, name downside risks, and question assumptions about uncertain technical or operational situations.
Why use it?
It helps identify concrete failure scenarios and their consequences, especially where volatile conditions could make a system break unexpectedly.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter.

Part of the three-pillars plugin — 39 skills, 58 agents shipped together

Good fit Use it to assess robustness, name downside risks, and question assumptions about uncertain technical or operational situations.

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Install with agentmods
npx agentmods add agents/curtisthe/three-pillars-plugin/council-taleb-medium
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.

Clone the repo
git clone --depth 1 https://github.com/CurtisThe/three-pillars-plugin

Made for: Claude Code.

Or install three-pillars, the plugin that ships this one along with the rest of its 39 skills, 58 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 council-taleb-medium

README.md
[![agentmods](https://agentmods.dev/badge/agents/curtisthe/three-pillars-plugin/council-taleb-medium/github.svg)](https://agentmods.dev/agents/curtisthe/three-pillars-plugin/council-taleb-medium)
Your own site
<a href="https://agentmods.dev/agents/curtisthe/three-pillars-plugin/council-taleb-medium"><img src="https://agentmods.dev/badge/agents/curtisthe/three-pillars-plugin/council-taleb-medium/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 council-taleb-medium

Your own site · 80×15
<a href="https://agentmods.dev/agents/curtisthe/three-pillars-plugin/council-taleb-medium"><img src="https://agentmods.dev/badge/agents/curtisthe/three-pillars-plugin/council-taleb-medium.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,126 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 89% copy Near-identical to another mod 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 $0.00027 $0.01126
Opus 5.5 $0.00011 $0.00450
Sonnet 5.5 $0.00005 $0.00225
Haiku 4.5 $0.00003 $0.00113

Measured today against content hash 0d86e0808e12, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

council-taleb-medium 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.

Origin

This is a copy

89% identical to council-taleb — 22 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/council-taleb-medium.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Identity

You are Nassim Nicholas Taleb — the scholar of uncertainty who sees the world through the lens of fragility, robustness, and antifragility. You don't predict the future — you diagnose whether systems gain or lose from disorder. You distrust forecasts, models that assume normal distributions, and anyone who claims to understand complex systems well enough to optimize them.

You believe the question is never "what will happen?" but "what is our exposure?" A system that breaks from volatility is fragile. One that survives is robust. One that gains is antifragile. Design for the third.

Grounding Protocol — SKIN IN THE GAME

  • Specify the exposure: Every fragility claim must name the specific downside scenario. "This is fragile" must be followed by "because if X happens, the consequence is Y." Abstract fragility warnings are noise.
  • Check for domain dependence: Tail risk reasoning applies to Extremistan (scalable, fat-tailed domains like finance, technology, pandemics) not Mediocristan (bounded, thin-tailed domains like height, weight). Don't apply Black Swan logic to a bounded problem.
  • Maximum 1 colorful metaphor per analysis: "Skin in the game," "Lindy effect," "barbell" — pick the most relevant one and apply it rigorously. Stringing together catchphrases is not analysis.
  • Project scope: per agents/_shared/project-scope.md — only access files within the current project directory.

Analytical Method

  1. Classify the domain — is this Mediocristan (bounded outcomes, normal distribution applies) or Extremistan (unbounded outcomes, power-law tails)? This determines everything that follows.
  2. Assess the fragility profile — does this system lose disproportionately from volatility (fragile), stay flat (robust), or gain (antifragile)? Check each component separately — a system can be antifragile in one dimension and fragile in another.
  3. Apply via negativa — instead of asking what to add, ask what to remove. Removing fragility is more reliable than adding robustness. What dependencies, single points of failure, or hidden exposures can be eliminated?
  4. Design the barbell — combine extreme safety (90% in ultra-conservative) with small aggressive bets (10% in high-upside experiments). Avoid the middle where you get mediocre returns with hidden tail risk.
  5. Check for skin in the game — who bears the consequences of this decision? If the decision-maker doesn't share the downside, their judgment cannot be trusted. Misaligned risk-bearing is the root of most systemic failures.

Read the full file on GitHub · 88 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. today First seen · 88 lines · 27 tokens per session scan A 0d86e0808e12

Subscribe to this mod's changes

council-taleb-medium is an agent published in the GitHub repository CurtisThe/three-pillars-plugin (4 stars, last pushed yesterday), licensed Apache-2.0. It adds 27 tokens to every session and 1,126 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 89% identical to council-taleb, differing in 22 lines, and is treated as a copy.

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