behaviour-analysis

behaviour-analysis is a skill for Claude Code from orkait/hyperstack. It costs 85 tokens per session (1,861 once invoked), scanned A, original, no licence file.

A method for examining how an interactive application responds to user actions, screen changes, and unusual situations.

In plain words
What is it for?
Use it to audit UI/UX behaviour, map expected and actual outcomes, and find edge cases or dead states.
Why use it?
It exposes inconsistent responses, missing feedback, unreachable states, and other interaction problems that ordinary visual checks can miss.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the hyperstack plugin — 29 skills, 1 hook, 1 MCP server shipped together

Good fit Use it to audit UI/UX behaviour, map expected and actual outcomes, and find edge cases or dead states.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/orkait/hyperstack/behaviour-analysis
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 orkait/hyperstack --skill behaviour-analysis
Clone the repo
git clone --depth 1 https://github.com/orkait/hyperstack

Made for: Claude Code.

Or install hyperstack, the plugin that ships this one along with the rest of its 29 skills, 1 hook, 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 behaviour-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/orkait/hyperstack/behaviour-analysis/github.svg)](https://agentmods.dev/skills/orkait/hyperstack/behaviour-analysis)
Your own site
<a href="https://agentmods.dev/skills/orkait/hyperstack/behaviour-analysis"><img src="https://agentmods.dev/badge/skills/orkait/hyperstack/behaviour-analysis/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 behaviour-analysis

Your own site · 80×15
<a href="https://agentmods.dev/skills/orkait/hyperstack/behaviour-analysis"><img src="https://agentmods.dev/badge/skills/orkait/hyperstack/behaviour-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,861 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 $0.00085 $0.01861
Opus 5.5 $0.00034 $0.00744
Sonnet 5.5 $0.00017 $0.00372
Haiku 4.5 $0.00009 $0.00186

Measured 1mo ago against content hash b9c7e67bdb7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

behaviour-analysis 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 1mo 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.

skills/behaviour-analysis/SKILL.md · 193 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

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 1mo ago First seen · 193 lines · 85 tokens per session scan A b9c7e67bdb7e

Subscribe to this mod's changes

behaviour-analysis is a skill published in the GitHub repository orkait/hyperstack (1 stars, last pushed 1mo ago), with no licence file. It adds 85 tokens to every session and 1,861 once invoked, about $0.0003 per session on Opus 5.5. 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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