sefaertunc

Upstream Check — Development skill for Claude Code

Development community

On-demand check of Anthropic upstream feeds (Claude Code releases, SDK changelogs, blog, status).

How to install Upstream Check

Installs to ~/.claude/commands/sefaertunc-anthropic-watch-upstream-check.md

Terminal

mkdir -p ~/.claude/commands && curl -fsSL https://raw.githubusercontent.com/sefaertunc/anthropic-watch/HEAD/.claude/commands/upstream-check.md -o ~/.claude/commands/sefaertunc-anthropic-watch-upstream-check.md

Restart Claude Code, or start a new session, for it to be picked up.

What Upstream Check does

description: "On-demand check of Anthropic upstream feeds (Claude Code releases, SDK changelogs, blog, status)"

Fetch the anthropic-watch feeds and report a concise summary of upstream changes. This is a stateless, on-demand status check — no caching, no persistence.

Feed base URL: `https://sefaertunc.github.io/anthropic-watch/feeds/`

1. Fetch Run Report

curl -s --max-time 10 https://sefaertunc.github.io/anthropic-watch/feeds/run-report.json

If the fetch fails (non-ze

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