The Prompt Library
The Prompt Library is where the prompts that actually work go, so you stop retyping them. Open it from the wrench menu in the left toolbar → Prompt Library.
Prompts are grouped by the kind of work they’re for — coding, debugging, review, testing, planning, AI systems & agents, research, writing, data, DevOps, and automation — and the library ships 117 prompts across them. They are written as fill-in-the-blank starting points: the [bracketed] parts are the bits you replace each time.
That’s a small set of worked examples plus a 100-prompt pack covering engineering, AI system design, research and analysis, and automation. Nothing about them is special — they are ordinary prompts from the moment the library is created, so edit, rename or delete any of them.
Shipped prompts arrive once. If a later version of Mastery HQ adds more, they’re added to your library the next time you open it — but anything you have already deleted stays deleted. A prompt you threw away does not come back on its own; Restore the examples is the only thing that brings it back.
Sending a prompt to an agent
Section titled “Sending a prompt to an agent”Click the send icon on any prompt and pick an agent window. The prompt lands in that agent’s input box, focused and ready to edit — it does not run.
That is deliberate. A stored prompt is a template, and the useful step is nearly always “this, but for my situation”. Running it verbatim would skip exactly the edit that makes it worth sending. Fill in the brackets, adjust anything else, then press Enter.
The Send to… list shows the agent windows that are currently open and not minimized, with their brand icon so you can tell a Claude window from a Codex one at a glance. If it’s empty, open an agent first.
Adding your own
Section titled “Adding your own”New opens the editor: give the prompt a title that says what it’s for, pick the workflow it belongs to, and paste the prompt itself. Use [brackets] for the parts you’ll swap out — future-you will thank you for the reminder.
Every prompt can be edited or deleted from its card. Deleting asks once; there’s no undo, but Restore the examples brings back any of the shipped ones you removed without touching prompts you’ve written or edited.
Searching
Section titled “Searching”The search box matches the title, the body and the workflow name, so “test” finds both the Testing group and any prompt that mentions tests. Clearing it brings the full library back.
Frequently asked questions
Why does sending a prompt not run it?
Because a library entry is a starting point, not a command. Almost every prompt needs one edit before it's useful — this file, this bug, this repo — so it lands in the agent's input with the cursor there. Read it, fill in the brackets, press Enter.
Can I delete the examples?
Yes. The examples are ordinary prompts from the moment the library is created, so you can edit or delete any of them. If you want them back later, empty the list or use Restore the examples — it re-adds only the ones you removed and leaves your edits alone.
Where are my prompts stored?
Locally with the rest of your workspace settings. They're per-install, not per-workspace, so the same library is there whichever workspace you're in.
Nothing appears in the Send to… list.
The list only offers agent windows that are open and not minimized. Open an agent first, then send.