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Post by Rhys on X

Rhys@RhysSullivan

MCP is so back GPT-5.4 has dynamic discovery tool to support thousands of tools - excited to see how this performs in comparison to CLIs which can't be searched

808 likes56 repliesPosted Mar 5, 2026

View the original on X Written by Rhys. Captured Sep 4, 2026.

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44

Viral score

Based on absolute engagement — the platform doesn’t expose follower counts here, so large accounts score higher.

From likes, comments.

Why it worked

Opens with a short, self-contained line that is easy to take in at a glance.
The opening line stands alone, so it reads completely before the post is expanded.
Short enough to read in full without expanding, which removes a step before the point lands.

The mechanics

Hook: Plain observation
Structure: Hook → Landing
Style: Conversational paragraphs at a steady pace.
Tone: plain, matter-of-fact
Written for: People building with AI

Analysis by ViralLoop — not written by the original author.

Topics

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More from Rhys

Feels like people over overreacting to this one just to hate on anthropic Limits are currently boosted 50%, that period is ending but they’re keeping them increased by 25% OpenAI has done a good number of temporarily promotional periods as well

i really don't get why anthropic communicates like this it feels like it'd be much better PR-wise for them to "Fable is included in the paid plans until X date, which may be extended based on capacity" the other thing is announcing this 1-2 days in advance, rather than day of

Great video by @coffeebreak_YT breaking down questionable aspects of Medvi - Has an FDA warning letter - Ads w/ fake doctors - AI generated before / after photos & testimonials NYT article mentions none of this for some reason, full video in reply

this is as much a sandboxing issue as it is a supply chain issue there's no reason for litellm to be able to access your entire system, we accepted this for a while as the scope of CLIs were relatively small and trusted, but now we need a better approach

Rhys on AI · ViralLoop