security-review

security-review is a skill for Claude Code, Codex from Kacper0199/Opencode-Ultrathinker. It costs 36 tokens per session (3,023 once invoked), scanned A, original, no licence file.

A security checklist and set of coding patterns for features that can expose accounts, data, secrets, or payments.

In plain words
What is it for?
Use it when adding authentication, handling user input, creating API endpoints, working with secrets, or implementing payment features.
Why use it?
It helps identify common security risks when code accepts user input, handles secrets, provides API endpoints, or processes sensitive actions.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it when adding authentication, handling user input, creating API endpoints, working with secrets, or implementing payment features.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kacper0199/opencode-ultrathinker/ultraskill-security-review
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 Kacper0199/Opencode-Ultrathinker --skill ultraskill-security-review
Clone the repo
git clone --depth 1 https://github.com/Kacper0199/Opencode-Ultrathinker

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 security-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/kacper0199/opencode-ultrathinker/ultraskill-security-review/github.svg)](https://agentmods.dev/skills/kacper0199/opencode-ultrathinker/ultraskill-security-review)
Your own site
<a href="https://agentmods.dev/skills/kacper0199/opencode-ultrathinker/ultraskill-security-review"><img src="https://agentmods.dev/badge/skills/kacper0199/opencode-ultrathinker/ultraskill-security-review/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 security-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/kacper0199/opencode-ultrathinker/ultraskill-security-review"><img src="https://agentmods.dev/badge/skills/kacper0199/opencode-ultrathinker/ultraskill-security-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,023 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 $0.00036 $0.03023
Opus 5 $0.00018 $0.01511
Sonnet 5 $0.00007 $0.00605
Haiku 4.5 $0.00004 $0.00302

Measured 9d ago against content hash b4fbed82c5a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

security-review 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 9d 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/ultraskill-security-review/SKILL.md · 495 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. 9d ago First seen · 495 lines · 36 tokens per session scan A b4fbed82c5a1

Subscribe to this mod's changes

security-review is a skill published in the GitHub repository Kacper0199/Opencode-Ultrathinker (2 stars, last pushed 3mo ago), with no licence file. It adds 36 tokens to every session and 3,023 once invoked, about $0.0002 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.

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