deprecated-Takomi_Code: Skill for Codex

.agent/skills/convex-security-check/SKILL.md

convex-security-check is a skill for Codex from JStaRFilms/deprecated-Takomi_Code. It costs 27 tokens per session (2,332 once invoked), scanned A, original, no licence file.

A security-audit checklist for Convex applications, covering login controls, exposed functions, input checks, data access, and environment variables.

In plain words
What is it for?
Use it to review authentication, function exposure, argument validation, row-level access control, and environment-variable handling.
Why use it?
It helps developers check common security gaps before they become vulnerabilities.

Skill for Codex

Written for Codex: agents/openai.yaml present.

This is JStaRFilms/deprecated-Takomi_Code's own configuration. It tells Codex how to work on deprecated-Takomi_Code itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything deprecated-Takomi_Code configures →

Reuse

Borrowing it

Nothing to install: this file belongs to JStaRFilms/deprecated-Takomi_Code. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/JStaRFilms/deprecated-Takomi_Code/master/.agent/skills/convex-security-check/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/JStaRFilms/deprecated-Takomi_Code

Made for: 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 convex-security-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/jstarfilms/deprecated-takomi_code/convex-security-check/github.svg)](https://agentmods.dev/skills/jstarfilms/deprecated-takomi_code/convex-security-check)
Your own site
<a href="https://agentmods.dev/skills/jstarfilms/deprecated-takomi_code/convex-security-check"><img src="https://agentmods.dev/badge/skills/jstarfilms/deprecated-takomi_code/convex-security-check/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 convex-security-check

Your own site · 80×15
<a href="https://agentmods.dev/skills/jstarfilms/deprecated-takomi_code/convex-security-check"><img src="https://agentmods.dev/badge/skills/jstarfilms/deprecated-takomi_code/convex-security-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,332 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00027 $0.02332
Opus 5 $0.00014 $0.01166
Sonnet 5 $0.00005 $0.00466
Haiku 4.5 $0.00003 $0.00233

Measured 9d ago against content hash bd7df401693d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

convex-security-check scanned grade A with 1 finding 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.

Sends data to an external URLlowData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

const response = await fetch("https://api.resend.com/emails", { method: "POST",

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

.agent/skills/convex-security-check/SKILL.md · 379 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

3 files 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. 9d ago First seen · 379 lines · 27 tokens per session scan A bd7df401693d

Subscribe to this mod's changes

convex-security-check is a skill published in the GitHub repository JStaRFilms/deprecated-Takomi_Code (3 stars, last pushed 5mo ago), with no licence file. It adds 27 tokens to every session and 2,332 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (sends data to an external url). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.