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The most common junior instinct is to solve a problem by writing more code. Ponytail flips that instinct into a system prompt: before your agent adds a function, it asks whether the function needs to exist at all. That's not a productivity trick, it's a discipline problem, and somebody finally coded the discipline into the loop.
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Blu Dot surpasses 2,000% ROAS with self-serve CTV ads
Home furniture brand Blu Dot blew up on CTV with help from Roku Ads Manager. Here’s how:
After a test campaign reached 211,000 households and achieved 1,010% ROAS, the brand went all in to promote its annual sales event. It removed age and income constraints to expand reach and shifted budget to custom audiences and retargeting, where intent was strongest.
The results speak for themselves. As Blu Dot increased their investment by 10x, ROAS jumped to 2,308% and more page-view conversions surpassed 50,000.
“For CTV campaigns, Roku has been a top performer,” said Claire Folkestad, Paid Media Strategist, Blu Dot. “Comping to our other platforms, we have seen really strong ROAS… and highly efficient CPMs, lower than any other CTV partner we've worked with.”
Using Roku Ads Manager, the campaign moved from a pilot to a permanent performance engine for the brand.
The Drops
Repoponytail
121,234 stars · DietrichGebert/ponytail
Makes your coding agent stop and ask "do I even need to write this" before it writes anything.
Here is the real problem it solves. Agents default to solving everything with new code, which is how you end up maintaining a function nobody asked for six months from now.
Quick start: drop it in as a system prompt layer ahead of your usual agent instructions and watch how often it proposes deleting instead of adding.
Catch: it will argue with you about scope more than a chattier agent would. That friction is the point, but budget for it.
AffiliateBeautiful.ai
A newsletter that saves you from re-explaining yourself is one thing, a deck that stops fighting your layout choices every time you edit is the same discipline applied to slides. Beautiful.ai, presentation software where the layout fixes itself. Start from a prompt or an outline, adjust the structure before it commits to a design, and the slides re-align as you edit so nothing drifts. For builders who need a deck that looks deliberate without opening a design tool.
Use it for: building slides from an outline while the layout keeps itself aligned as you edit.
We may earn a commission.
Repochrome-devtools-mcp
50,587 stars · ChromeDevTools/chrome-devtools-mcp
Chrome DevTools wired straight into your coding agent as an MCP server.
Use it for: letting your agent inspect the live DOM, network calls, and console errors instead of guessing why the page broke.
Catch: it's a debugging surface, not a fix generator. Your agent still has to read the signal correctly.
RepoVoiceStudio
14,453 stars · debpalash/VoiceStudio
A fully local, open-source stand-in for the paid voice-cloning suites.
Use it for: voice cloning, dubbing, and transcription across 646 languages without a subscription or an API key leaving your machine.
Catch: local voice models are hungry. Check your GPU headroom before you commit a pipeline to it.
MCPdocker
166 stars · decionis/docker
A governance layer that puts human approval and signed decision records in front of consequential agent actions.
Use it for: the exact moment your agent wants to delete a table or push to prod, and you want a paper trail before it happens, not after.
Catch: small project, small star count. Read the code before you trust it with anything that matters.
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Start Here
Teach your AI who you are once, so it stops asking every time.
Most people re-explain their job, their tone, and their project every single time they open a chat. That's the underwhelming ChatGPT experience most people quit on.
1. Open a new chat and write out, in plain sentences, what you do, what you're working on right now, and how you want answers delivered (short, detailed, formal, casual, whatever's true).
2. Ask the tool directly: "Can you remember this for future chats, or do you have a settings area for custom instructions or a persistent project?"
3. If it says yes, follow its prompt and save that information there instead of in the chat itself.
4. Start your next chat with zero setup and see what it already knows.
5. Update it whenever something about your work changes, treat it like a living note, not a one-time form.
TRY THIS: Open your AI tool right now, look for "custom instructions," "memory," or "projects" in its settings, and write three sentences about what you do and how you like answers formatted.
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Recommended
Once your tool actually remembers who you are, the next unlock is knowing what to ask it for, which is exactly what daily short tutorials are built to show you. Use AI like the top 1% in 10 min/day is the whole pitch: 25,000+ pros already use it, there are 350+ tutorials with new ones landing every week, and you can cancel anytime. We may earn a commission. |
Frontier Signals
Claude Fable 5.1 cuts cache pricing 75% while shipping 70% more output tokens per call. That's the rare price cut that doesn't come with a capability tax attached, worth re-checking your cost model against. (Latent Space)
Anthropic quietly killed Fable's data retention policy instead of just tweaking it. If you build on Claude and compliance language matters to your customers, the removal changes what you can promise them today. (Stratechery)
AI token prices are hitting fresh record lows as competition among model providers intensifies. Whatever you budgeted for inference three months ago is probably wrong now, in your favor. (CNBC)
The Trump administration filed in support of OpenAI's fair-use argument in the New York Times copyright suit. A win here sets the legal ground every model trained on scraped text is standing on. (Wired)
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Before You Go
Reply and tell me which Drop you're actually going to run this week, ponytail or the DevTools MCP. I read every one.
See you Friday.
Before you go: we started a room for people actually building with agents. Drop your best Claude Code skill. Join the community →
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