neon

neon is a skill for Claude Code, Codex from G1Joshi/Agent-Skills. It costs 19 tokens per session (358 once invoked), scanned A, original, MIT.

A hosted, serverless PostgreSQL database, meaning standard PostgreSQL with managed compute, storage, and database branching.

In plain words
What is it for?
Use it for serverless applications, pull-request test databases, and PostgreSQL projects that need temporary development copies.
Why use it?
It can reduce costs for environments that are idle and lets developers create separate database branches for testing. Connection pooling supports serverless functions.

Skill for Claude CodeCodex

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

Good fit Use it for serverless applications, pull-request test databases, and PostgreSQL projects that need temporary development copies.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/g1joshi/agent-skills/neon
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 G1Joshi/Agent-Skills --skill neon
Clone the repo
git clone --depth 1 https://github.com/G1Joshi/Agent-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 neon

README.md
[![agentmods](https://agentmods.dev/badge/skills/g1joshi/agent-skills/neon/github.svg)](https://agentmods.dev/skills/g1joshi/agent-skills/neon)
Your own site
<a href="https://agentmods.dev/skills/g1joshi/agent-skills/neon"><img src="https://agentmods.dev/badge/skills/g1joshi/agent-skills/neon/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 neon

Your own site · 80×15
<a href="https://agentmods.dev/skills/g1joshi/agent-skills/neon"><img src="https://agentmods.dev/badge/skills/g1joshi/agent-skills/neon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 358 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 $0.00019 $0.00358
Opus 5 $0.00010 $0.00179
Sonnet 5 $0.00004 $0.00072
Haiku 4.5 $0.00002 $0.00036

Measured 5d ago against content hash 21c7236aa530, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

neon 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 5d 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/databases/neon/SKILL.md · 49 lines

What it actually says

Neon

Neon is a serverless open-source PostgreSQL database. It separates storage and compute to offer features like "Scale to Zero", "Instant Branching", and "Bottomless Storage".

When to Use

  • Cost Efficiency: "Scale to Zero" means you pay nothing when no one is using the app (Dev/Test envs).
  • Developer Workflow: "Instant Branching" (Copy-on-write) lets you create a full clone of specific Prod data for testing in 1 second.
  • Standard Postgres: It is Postgres. Not a fork with limitations.

Core Concepts

Separated Architecture

  • Compute: Stateless Postgres nodes. Can boot in <500ms.
  • Storage: Custom "Pageserver" layer purely for storage.

Data Branching

You can fork your database at a specific timestamp or LSN.

# Create a branch for testing feature X
neon branch create test_feature_x --from main

This is instant (COW) and cheap.

Best Practices (2025)

Do:

  • Use Branching for CI/CD: Spin up an ephemeral DB branch for every Pull Request. Run tests, delete branch.
  • Use Connection Pooling: Neon includes PgBouncer proxy. Use the pooled connection string for serverless functions.
  • Autoscaling: Configure autoscaling limits to handle spikes without overpaying.

Don't:

  • Don't worry about storage size: Neon storage scales automatically.

References

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. 5d ago First seen · 49 lines · 19 tokens per session scan A 21c7236aa530

Subscribe to this mod's changes

neon is a skill published in the GitHub repository G1Joshi/Agent-Skills (12 stars, last pushed 7mo ago), licensed MIT. It adds 19 tokens to every session and 358 once invoked, about $0.0001 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 2026-09-03.