10 Prompts to Run When Fable Comes Back

Tactical META-prompts that benefit from maximum intelligence to upgrade your entire system
June 18, 2026

A runner coiled in the starting blocks, looking down a glowing purple lane

Now that people have tasted Fable and had it pulled away, many of us are queueing up work to have it do when it comes back.

I think th key is to focus on META-work, i.e., work that helps other work. Or, system upgrades vs. task upgrades.

Here are the one's I have planned and/or that I recommend:

10 Prompts That Benefit from the Smartest Models

Harness optimization

These prompts are related to improving our AI harness at a deep level across different dimensions.

Goal orientation

  • Look at our overall harness. I need you to:
    • characterize what I'm ultimately trying to accomplish with it
    • then look at what parts of the system — such as our system prompt, AGENTS/CLAUDE.md files, hooks, skills, etc. — are working against that overall goal
    • and if you don't see a clear goal in our harness, interview me about it so we can get the system working cohesively in a single direction
    • ultracode

Bitter lesson optimization

  • Deeply study Richard Stutton's Bitter Lesson essay and how it applies to overengineering, specifically for AI / Coding harnesses. Then I need you to:
    • do a full analysis of our AI harness in its entirety
    • look for places where we're violating Bitter Lesson Engineering
    • give me a comprehensive plan for upgrading our system to be more flexible to future improvements in the models we use
    • ultracode

Security upgrades

These prompts involve upgrading how the harness handles security at multiple levels.

Prompt injection handling

  • Do deep analysis of our overall AI harness and imagine and model how vulnerable it is to various levels of Prompt Injection. I need you to:
    • map out all the different inputs to the harness
    • how the different input avenues are handled from a Prompt Injection standpoint using which models
    • based on the data that we have access to and the tools that we have access to, figure out what our Prompt Injection defense should be
    • research the best tools available
    • and then finally give a full plan and recommendation on how to upgrade our harness in the long term so that it is less vulnerable to Prompt Injection overall
    • ultracode

Overall life and work optimization

These are massive scope prompts that basically help you sort out your priorities, your projects, and come up with a plan for maximizing the next crucial few years.

Big picture

I need you to take a look at all my various projects