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ogcode: Skill for Claude Code

.agents/skills/firebase-security-rules-auditor/SKILL.md

firebase-security-rules-auditor is a skill for Claude Code, Codex from prasenjeet-symon/ogcode. It costs 94 tokens per session (898 once invoked), scanned A, original, AGPL-3.0.

A security review guide for Firebase Firestore and Cloud Storage rules. These rules control who can access or change data and files.

In plain words
What is it for?
Use it to audit or red-team Firebase rules and check permissions, data types, size limits, and create-versus-update behavior.
Why use it?
It helps find access-control mistakes such as privilege escalation, role bypasses, ownership errors, unsafe updates, and resource-exhaustion risks.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is prasenjeet-symon/ogcode's own configuration. It tells Claude Code and Codex how to work on ogcode 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 ogcode configures →

not rated 147repo +2 yesterday A scan 94 tokens AGPL-3.0
View source ↗ prasenjeet-symon/ogcode ogcode.in
Reuse

Borrowing it

Nothing to install: this file belongs to prasenjeet-symon/ogcode. 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/prasenjeet-symon/ogcode/main/.agents/skills/firebase-security-rules-auditor/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/prasenjeet-symon/ogcode

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 firebase-security-rules-auditor

README.md
[![agentmods](https://agentmods.dev/badge/skills/prasenjeet-symon/ogcode/firebase-security-rules-auditor/github.svg)](https://agentmods.dev/skills/prasenjeet-symon/ogcode/firebase-security-rules-auditor)
Your own site
<a href="https://agentmods.dev/skills/prasenjeet-symon/ogcode/firebase-security-rules-auditor"><img src="https://agentmods.dev/badge/skills/prasenjeet-symon/ogcode/firebase-security-rules-auditor/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 firebase-security-rules-auditor

Your own site · 80×15
<a href="https://agentmods.dev/skills/prasenjeet-symon/ogcode/firebase-security-rules-auditor"><img src="https://agentmods.dev/badge/skills/prasenjeet-symon/ogcode/firebase-security-rules-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 898 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 $0.00094 $0.00898
Opus 5.5 $0.00038 $0.00359
Sonnet 5.5 $0.00019 $0.00180
Haiku 4.5 $0.00009 $0.00090

Measured 16d ago against content hash 6522cd9e61ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

firebase-security-rules-auditor 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 16d 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/firebase-security-rules-auditor/SKILL.md · 86 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 16d ago First seen · 86 lines · 94 tokens per session scan A 6522cd9e61ca

Subscribe to this mod's changes

firebase-security-rules-auditor is a skill published in the GitHub repository prasenjeet-symon/ogcode (147 stars, last pushed yesterday), licensed AGPL-3.0. It adds 94 tokens to every session and 898 once invoked, about $0.0004 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 2026-10-21.

Code GenerationDatabasesLLMSecurityai-agentcoding-assistantdeveloper-toolsgo
Related

firebase-security-rules-auditor compared with skills from other repositories

firebase-security-rules-auditor next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
firebase-security-rules-auditorprasenjeet-symon/ogcodeSkill147yesterdayAGPL-3.0A94Claude Code, Codex
backend-patternsdeepelementlab/clawcodeSkill1265mo agoGPL-3.0A31Claude Code, Codex
clickhouse-iodeepelementlab/clawcodeSkill1265mo agoGPL-3.0A26Claude Code, Codex
database-migrationsdeepelementlab/clawcodeSkill1265mo agoGPL-3.0A52Claude Code, Codex
triage-issuesgoogleapis/mcp-toolboxSkill17kyesterdayApache-2.0A164Claude Code, Codex
docsite-link-sweepgoogleapis/mcp-toolboxSkill17kyesterdayApache-2.0A148Claude Code, Codex
ontology-coreUnicomAI/wanwuSkill2.4k14d agoApache-2.0A199Claude Code