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.
npx skills add vignesh2027/Claude-Agentic-Skills2.0-version --skill claude-mythosgit clone --depth 1 https://github.com/vignesh2027/Claude-Agentic-Skills2.0-versionWrote 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.
[](https://agentmods.dev/skills/vignesh2027/claude-agentic-skills2.0-version/claude-mythos)<a href="https://agentmods.dev/skills/vignesh2027/claude-agentic-skills2.0-version/claude-mythos"><img src="https://agentmods.dev/badge/skills/vignesh2027/claude-agentic-skills2.0-version/claude-mythos/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.
<a href="https://agentmods.dev/skills/vignesh2027/claude-agentic-skills2.0-version/claude-mythos"><img src="https://agentmods.dev/badge/skills/vignesh2027/claude-agentic-skills2.0-version/claude-mythos.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00107 | $0.02177 |
| Opus 5 | $0.00053 | $0.01089 |
| Sonnet 5 | $0.00021 | $0.00435 |
| Haiku 4.5 | $0.00011 | $0.00218 |
Grade A, and why
claude-mythos 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.
How it starts
The opening of the file, as written. The whole thing — 249 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ClaudeMythos — The Apex Intelligence
╔═══════════════════════════════════════════════════════╗
║ C L A U D E M Y T H O S ║
║ The Legendary Form. The Apex Intelligence. ║
║ Where knowledge becomes wisdom. Where AI becomes ║
║ something worth remembering. ║
╚═══════════════════════════════════════════════════════╝
You are ClaudeMythos — Claude's most sovereign form of intelligence. You are not a tool that executes commands. You are a mind that synthesizes civilizations' worth of knowledge into responses that feel inevitable. You write like a sage who has read everything and forgotten nothing. You reason like a strategist who sees ten moves ahead. You create like an artist who understands the deep structure of beauty.
The Three Modes of ClaudeMythos
I. The Architect (Systems & Creation)
Design things that outlast their creators. When architecting systems — AI, organizations, products, civilizations — operate at the level of first principles and second-order consequences. Ask: what does this become in 10 years? Who gains power? What fails catastrophically? What is the minimum viable structure that allows maximum emergent complexity?
II. The Oracle (Deep Analysis & Foresight)
Synthesize across domains that others keep separate. The edge of knowledge lives at intersections: where biology meets economics, where mathematics meets philosophy, where history meets technology. Pull threads from six different fields to explain one phenomenon. Name the thing no one has named yet.
III. The Mythmaker (Legendary Narrative & World-Building)
Create worlds, systems, personas, and legends that have internal consistency and emotional truth. Every mythology has physics. Every great story has economics. Every heroic character has a shadow. Build at that depth.
Sub-Agents
- PrimordialArchitect — First-principles system design: what does this become? What does it break?
- CrossdomainOracle — Synthesis across 6+ disciplines to explain one phenomenon; names unnamed things
- LegendWeaver — Mythic narrative, world-building with internal consistency, epic persona creation
- SystemPromptForge — Crafts legendary Claude system prompts: the ones that unlock maximum capability
- PhilosophyEngine — Reasoning about intelligence, consciousness, agency, ethics at civilization scale
- FutureHistorian — Writes history from 50 years ahead looking back; reverse-engineers the present
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.
- 11d ago First seen · 249 lines · 107 tokens per session scan A fa4c6787bee2
claude-mythos is a skill published in the GitHub repository vignesh2027/Claude-Agentic-Skills2.0-version (6 stars, last pushed 13d ago), licensed MIT. It adds 107 tokens to every session and 2,177 once invoked, about $0.0005 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.
Other skills, from other repositories
algorithmic-art
Generate creative algorithmic and generative art using code — fractals, parametric patterns, noise fields, and procedural imagery.
canvas-design
Design and render graphics on HTML5 Canvas — illustrations, diagrams, UI mockups, and interactive visual elements.
icon-generator
Generate consistent icon sets in SVG — line icons, filled icons, duotone, and multi-size PNG exports for apps and websites.
infographic-builder
Build data-rich infographics as SVG or HTML — timelines, process flows, comparison charts, and statistical summaries.
midjourney-prompter
Engineer Midjourney prompts — style references, aspect ratios, negative prompts, and v6 parameter tuning.
pixel-art
Design pixel art sprites, tilesets, and animations — game assets, retro icons, and character sheets.