1. What It Is
Most AI assistants are agreeable by default — they give you suggestions, validate your ideas, and move on. Goal Finisher is a Custom GPT configured to do the opposite: it acts as a strict task-completion coach that breaks your goal into steps and won’t let you skip ahead until you’ve actually done the current one.
Live link: Goal Finisher on ChatGPT
2. How It Was Built
The GPT was set up through ChatGPT’s custom instructions interface. The system prompt specifies:
- Tone: firm and task-focused, not conversational or encouraging
- Behaviour: break the goal into small concrete steps, present one at a time, and ask the user to confirm completion before moving to the next
- Constraint: don’t give the full plan upfront or let the user jump ahead — accountability is the point
No code was written. The entire project is prompt engineering inside the ChatGPT builder.
3. Issues & What’s Next
The GPT sometimes slips back into normal helpful-assistant mode — offering suggestions rather than waiting for action. The instructions need incremental tweaking each time this happens.
Shared it with a few friends so far. Plan to update the instructions as issues come up and eventually make it public to get broader feedback.