skill-ultra

skill-ultra is a command for Claude Code from gaia-research/gaia-skill-heaven. It costs 16 tokens per session (343 once invoked), scanned A, original, no licence file.

A command that enables an advanced operating mode and chooses how much work to do based on what is missing.

In plain words
What is it for?
Use it when you want the agent to decide the direction and depth of work automatically.
Why use it?
It helps select the level of analysis or implementation effort needed for a task.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the skill-heaven plugin — 5 skills, 5 commands, 1 MCP server shipped together

Good fit Use it when you want the agent to decide the direction and depth of work automatically.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/gaia-research/gaia-skill-heaven/skill-ultra
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/gaia-research/gaia-skill-heaven

Made for: Claude Code.

Or install skill-heaven, the plugin that ships this one along with the rest of its 5 skills, 5 commands, 1 MCP server.

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 skill-ultra

README.md
[![agentmods](https://agentmods.dev/badge/commands/gaia-research/gaia-skill-heaven/skill-ultra/github.svg)](https://agentmods.dev/commands/gaia-research/gaia-skill-heaven/skill-ultra)
Your own site
<a href="https://agentmods.dev/commands/gaia-research/gaia-skill-heaven/skill-ultra"><img src="https://agentmods.dev/badge/commands/gaia-research/gaia-skill-heaven/skill-ultra/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 skill-ultra

Your own site · 80×15
<a href="https://agentmods.dev/commands/gaia-research/gaia-skill-heaven/skill-ultra"><img src="https://agentmods.dev/badge/commands/gaia-research/gaia-skill-heaven/skill-ultra.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 343 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 $0.00016 $0.00343
Opus 5 $0.00008 $0.00171
Sonnet 5 $0.00003 $0.00069
Haiku 4.5 $0.00002 $0.00034

Measured 3d ago against content hash 88b45895d605, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

skill-ultra 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 3d 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/skill-heaven/commands/skill-ultra.md · 33 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 3d ago Changed · +6 lines 88b45895d605
  2. 12d ago First seen · 27 lines · 16 tokens per session scan A 551f6d97ef4f

Subscribe to this mod's changes

skill-ultra is a command published in the GitHub repository gaia-research/gaia-skill-heaven (4 stars, last pushed 2d ago), with no licence file. It adds 16 tokens to every session and 343 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 2026-08-31.