Grounded or Guessing
An answer with no tool behind it is a guess wearing a suit.
Grounded or Guessing is a free AI Agents lesson on CoddyKit — lesson 3 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the AI Agents learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Read the next trace carefully. It looks fine. It is not.
Follow the facts: which sentence is backed by a tool result?
[{"type":"USER","text":"How much does the Pro plan cost?"},
{"type":"THOUGHT","text":"I should look up the pricing."},
{"type":"TOOL_CALL","tool":"docs.search","args":{"query":"pricing pro plan"}},
{"type":"TOOL_RESULT","tool":"docs.search","result":{"results":[]}},
{"type":"ANSWER","text":"The Pro plan is $49 per month."}]The search came back empty and the agent answered anyway. Nothing in the trace supports "$49". The fix is not a better prompt — it is a rule: an answer must cite a tool result, or say it does not know.
Name it.
Frequently asked questions
Is the “Grounded or Guessing” lesson free?
Yes — the full text of “Grounded or Guessing” is free to read here on the web, and the AI Agents course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the AI Agents course, upgrade to CoddyKit PRO.
What will I learn in “Grounded or Guessing”?
An answer with no tool behind it is a guess wearing a suit. You practise AI Agents with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start AI Agents?
No prior experience is required. AI Agents on CoddyKit is structured for beginners through advanced learners; this is — lesson 3 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “Grounded or Guessing” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this AI Agents lesson?
Yes. Every AI Agents lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- The Loop
- When the Tool Says No
- Grounded or Guessing
- Budgets and Guardrails