react-sse-patterns

react-sse-patterns is a skill for Claude Code, Codex from sandgardenhq/sgai. It costs 79 tokens per session (3,015 once invoked), scanned A, original, no licence file.

Implementation patterns for server-sent events, a way for a server to send live updates to a web page, in React applications.

In plain words
What is it for?
Use them when building real-time React data stores, update hooks, or reliable EventSource connections.
Why use it?
They address lost connections, reconnecting after failures, restoring current data, and showing connection status.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

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.

agentmods
npx agentmods add skills/sandgardenhq/sgai/react-sse-patterns
Any agent
npx skills add sandgardenhq/sgai --skill react-sse-patterns
Clone the repo
git clone --depth 1 https://github.com/sandgardenhq/sgai

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 react-sse-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/sandgardenhq/sgai/react-sse-patterns.svg)](https://agentmods.dev/skills/sandgardenhq/sgai/react-sse-patterns)
Your own site
<a href="https://agentmods.dev/skills/sandgardenhq/sgai/react-sse-patterns"><img src="https://agentmods.dev/badge/skills/sandgardenhq/sgai/react-sse-patterns.svg" alt="Measured on agentmods" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,015 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00079 $0.03015
Opus 5 $0.00039 $0.01507
Sonnet 5 $0.00016 $0.00603
Haiku 4.5 $0.00008 $0.00301

Measured 6d ago against content hash b93f5e471423, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

react-sse-patterns 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 6d 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.

cmd/sgai/skel/.sgai/skills/coding-practices/react-sse-patterns/SKILL.md · 408 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 6d ago First seen · 408 lines · 79 tokens per session scan A b93f5e471423

Subscribe to this mod's changes

react-sse-patterns is a skill published in the GitHub repository sandgardenhq/sgai (132 stars, last pushed 1mo ago), with no licence file. It adds 79 tokens to every session and 3,015 once invoked, about $0.0004 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 2026-08-30.

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