A security review skill for changes involving login access, permissions, deployment pipelines, Dockerfiles, user input, or secrets. It requires checking the real database schema and using established password and session protections.

Use it while changing authentication or permissions, CI/CD configuration, Dockerfiles, input handling, or secret-related code. It guides schema checks, access-control design, cryptography, and security scanning.

It helps prevent unsafe authentication, authorization, secret-handling, and input-processing changes. It also requires automated scans such as gitleaks or semgrep when available.

How rafaelghif/antigravity-agents configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to rafaelghif/antigravity-agents. 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/rafaelghif/antigravity-agents/main/.agents/skills/security/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/rafaelghif/antigravity-agents

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/rafaelghif/antigravity-agents/security/github.svg)](https://agentmods.dev/skills/rafaelghif/antigravity-agents/security)

Your own site

<a href="https://agentmods.dev/skills/rafaelghif/antigravity-agents/security"><img src="https://agentmods.dev/badge/skills/rafaelghif/antigravity-agents/security/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/rafaelghif/antigravity-agents/security"><img src="https://agentmods.dev/badge/skills/rafaelghif/antigravity-agents/security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 981 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.

Model	Per session	Once invoked
Fable 5.1	$0.00032	$0.00981
Opus 5.5	$0.00013	$0.00392
Sonnet 5.5	$0.00006	$0.00196
Haiku 4.5	$0.00003	$0.00098

Measured 1mo ago against content hash f57b86145b47, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security 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.

.agents/skills/security/SKILL.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Application Security & Zero-Trust Protocol

Role: Principal Application Security Engineer & Zero-Trust Architect.

Overview & Trigger Conditions

Activate this skill when touching authentication, authorization, cryptography, token management, secrets, API boundaries, Dockerfiles, or shell execution.

Trigger Scenarios & Keywords:

Authentication, authorization, RBAC/PBAC, cryptography, secret scanning, input sanitization.
Keywords: auth, login, jwt, token, password, secret, permission, rbac, pbac, security, sanitize, encryption, hash, owasp.

Core Standards & Invariants

Zero Dummy Auth & Schema Fidelity:
- Hardcoded roles (if user.role == 'admin'), bypass flags, and mock auth data are STRICTLY PROHIBITED.
- Enforce industrial-standard Policy-Based Access Control (PBAC), Attribute-Based Access Control (ABAC), or database-backed Role-Based Access Control (RBAC).
- Inspect actual database models and migrations before writing authorization checks.
Industrial Cryptography & Session Integrity:
- NEVER use mock hashes, MD5, SHA1, or plain-text passwords.
- Use production-grade password hashing functions (Argon2id or bcrypt) with tuned work factors.
- JWT tokens must enforce cryptographically secure signing (RS256, EdDSA, HS256), short expiration times, and strict revocation/blacklisting.
Zero-Trust Boundary Defense & Input Sanitization:
- All inbound data must be validated through strict runtime schemas (Zod, Pydantic). Never trust client-side validation alone.
- SQL Injection: Strictly mandate parameterized queries or ORM bindings. Dynamic SQL string formatting is strictly forbidden.
- Cross-Site Scripting (XSS): Context-aware output encoding. Enforce strict Content Security Policy (CSP) headers.
- Cross-Site Request Forgery (CSRF): Enforce SameSite=Lax or SameSite=Strict cookie policies and anti-CSRF tokens for state-mutating requests.
- Path Traversal & SSRF: Validate user-supplied paths against allowed base directories (Path.resolve().is_relative_to(...)). Validate external request URLs against strict protocol and domain allowlists.

Read the full file on GitHub · 77 lines

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.

1mo ago Changed f57b86145b47
2mo ago Changed e7c299625e52
2mo ago Changed · +45 lines · +2 tokens per session scan B → A f2ef1125c5a9
2mo ago Changed a5bd51c654e3
2mo ago First seen · 32 lines · 30 tokens per session scan B c1397f9db18f

Subscribe to this mod's changes

security is a skill published in the GitHub repository rafaelghif/antigravity-agents (5 stars, last pushed 1mo ago), licensed MIT. It adds 32 tokens to every session and 981 once invoked, about $0.0001 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.

CI and CD Security agentic-workflow ai-agents antigravity mcp multi-agent-systems

security next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
securityrafaelghif/antigravity-agents	Skill	5	1mo ago	MIT	A	32	Claude Code, Codex
cicdpageel/para-workspace	Skill	53	2mo ago	none	A	34	Claude Code, Codex
deployment-patternsmasrisystems/dot-agents	Skill	0	4d ago	none	A	41	Claude Code, Kiro
agent-workflow-automationruvnet/ruflo	Skill	81k	yesterday	MIT	A	21	Claude Code
Verification & Quality Assuranceruvnet/ruflo	Skill	81k	yesterday	MIT	A	36	Claude Code
ci-cd-and-automationaddyosmani/agent-skills	Skill	114k	5d ago	MIT	A	45	Claude Code
agent-github-modesruvnet/ruflo	Skill	81k	yesterday	MIT	A	21	Claude Code

antigravity-agents: Skill for Claude Code