secure

secure is a skill for Claude Code, Codex from silvioventre/lovable-skills. It costs 174 tokens per session (1,103 once invoked), scanned A, original, MIT.

A security review guide for applications that handles secrets, payments, personal data, user roles, or permissions. It separates browser code, server-side functions, and database row-level security, which controls access to individual records.

In plain words
What is it for?
Use it to review an app before launch, decide where API keys and sensitive logic belong, check client-side exposure, secure external API calls, and inspect form validation and permissions.
Why use it?
It prevents trusting code that runs in the user's browser and helps place validation, access checks, and business rules where they cannot be bypassed. This reduces the risk of exposed secrets and unauthorized data access.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to review an app before launch, decide where API keys and sensitive logic belong, check client-side exposure, secure external API calls, and inspect form validation and permissions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/silvioventre/lovable-skills/secure
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 silvioventre/lovable-skills --skill secure
Clone the repo
git clone --depth 1 https://github.com/silvioventre/lovable-skills

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 secure

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/silvioventre/lovable-skills/secure"><img src="https://agentmods.dev/badge/skills/silvioventre/lovable-skills/secure.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 174 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,103 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 original 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 $0.00174 $0.01103
Opus 5 $0.00087 $0.00551
Sonnet 5 $0.00035 $0.00221
Haiku 4.5 $0.00017 $0.00110

Measured 10d ago against content hash e63a6ed823a8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

secure 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 10d 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/security/secure/SKILL.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Secure

Lovable apps have three layers, and each has exactly one security job. Nearly every real vulnerability comes from putting a decision in the wrong layer.

Layer Runs Trust Job
Frontend In the user's browser None. Public, inspectable, modifiable Presentation only. Never decides access
Edge functions Server-side, isolated Trusted Validation, authorisation, business logic, external calls
Database (RLS) In the database Trusted Enforces row access even when the layers above fail

The frontend is not a weak line of defence — it is not a line of defence at all. Anything shipped to the browser is readable and changeable by anyone who wants to.

Route the concern

The question or task Playbook
Where do I put an API key, token, or secret? reference/frontend.md
Is there anything sensitive exposed in my client code? reference/frontend.md
Is form or input validation enough as written? reference/frontend.md
What belongs server-side rather than in a component? reference/edge-functions.md
Calling an external or paid API safely reference/edge-functions.md
Payments, uploads, registration, anything multi-step reference/edge-functions.md
Can users see or change each other's data? reference/rls.md
Setting up or reviewing row-level security reference/rls.md
Team, organisation, or shared-record access rules reference/rls.md
Login, sessions, roles, protecting a route reference/auth.md
Admin areas and privileged actions reference/auth.md
Full security review, or "am I safe to publish?" reference/review.md

If the request spans layers — most real ones do — start at reference/review.md and let it dispatch.

Read the full file on GitHub · 63 lines

Files

What ships with it

6 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. 10d ago First seen · 63 lines · 174 tokens per session scan A e63a6ed823a8

Subscribe to this mod's changes

secure is a skill published in the GitHub repository silvioventre/lovable-skills (2 stars, last pushed 16d ago), licensed MIT. It adds 174 tokens to every session and 1,103 once invoked, about $0.0009 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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