hyperplan

hyperplan is a skill for Claude Code, Codex from code-yeongyu/oh-my-openagent. It costs 149 tokens per session (5,889 once invoked), scanned A, original, no licence file.

A planning process that asks several specialised agents to challenge a proposed plan, debate its weak points, and pass the surviving conclusions to a planning agent.

In plain words
What is it for?
Use it for adversarial planning, difficult design decisions, and plans that need review from several perspectives.
Why use it?
It exposes assumptions and disagreements before work begins, which helps produce a plan supported by cross-checking rather than one first draft.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/code-yeongyu/oh-my-openagent/hyperplan
Any agent
npx skills add code-yeongyu/oh-my-openagent --skill hyperplan
Clone the repo
git clone --depth 1 https://github.com/code-yeongyu/oh-my-openagent

Made for: Claude Code, Codex.

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 hyperplan

README.md
[![agentmods](https://agentmods.dev/badge/skills/code-yeongyu/oh-my-openagent/hyperplan.svg)](https://agentmods.dev/skills/code-yeongyu/oh-my-openagent/hyperplan)
Your own site
<a href="https://agentmods.dev/skills/code-yeongyu/oh-my-openagent/hyperplan"><img src="https://agentmods.dev/badge/skills/code-yeongyu/oh-my-openagent/hyperplan.svg" alt="Measured on agentmods" height="20"></a>
Per session 149 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,889 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00149 $0.05889
Opus 5 $0.00075 $0.02944
Sonnet 5 $0.00030 $0.01178
Haiku 4.5 $0.00015 $0.00589

Measured 4d ago against content hash c4d62069605a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

hyperplan 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 4d 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.

.agents/skills/hyperplan/SKILL.md · 451 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. 4d ago First seen · 451 lines · 149 tokens per session scan A c4d62069605a

Subscribe to this mod's changes

hyperplan is a skill published in the GitHub repository code-yeongyu/oh-my-openagent (68,657 stars, last pushed today), with no licence file. It adds 149 tokens to every session and 5,889 once invoked, about $0.0007 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 2026-08-30.

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