A Custom Kiro Agent to Post on Social Media

Every time I publish a blog post or a podcast episode, I share it on social media. Mastodon, LinkedIn, Bluesky, X. Four platforms, four different APIs, four different character limits, four different image upload procedures. It's tedious. Not hard, just repetitive enough to be annoying. So I built a Kiro CLI custom agent that does it for me. I give it a message and optionally an image, it adapts…