Plan a six-week Southeast Asia trip with Manus (hallucinated flights)
- Posted
- by Matt Mickiewicz (@MattMickiewicz)
- Last checked
- Method:
- How we verify
Evidence: Described by posterThe person describes what happened in words, without screenshots or video.
FailureThe source says the agent did not get the job done.
What went wrong: Recommended flights that did not exist, despite having browser access.
Outcome
The poster used Manus to plan a 6-week Southeast Asia trip, and it hallucinated flights that didn't exist despite having browser access.
Agent
Prompt Improved prompt
Strengthened by us to avoid the problem in the source. Not tested by the poster. It doesn't change what happened in the source.
Here's a task I'd like your help with. Read it all the way through before you start. Goal: Plan a 6-week trip through Southeast Asia with real flights I can book. Check with me first: Which countries, which dates, and roughly what budget? What I'll give you: - Start and end dates ([DATES]) and where I'm flying from - Countries or cities I want to include - Budget and travel style Rules: - Only list flights you have found on the airline's website or a booking site for my dates, with the flight number. - If you can't confirm a flight, write 'not confirmed' and suggest I search that route myself. Never invent a flight. - Plan the route so it doesn't double back, and include time for overland legs. - Give me a link for every flight and place you mention. - Don't book anything. Output: A day-by-day route, a flight table (route, airline, flight number, date, price, link, confirmed yes/no), and where to stay in each stop. If anything here is unclear or missing, ask me instead of guessing. You'll know it worked when: every flight in the plan opens on a real booking page for my dates.
Try this in:
This prompt has blanks to fill in, like [DATES]. We'll copy it instead of filling it in, so you can edit it before you send.
The source used Manus, which can take actions in a browser or app. These are general chat tools, so results may differ, and a normal chat may only give you a plan.
Opens in a new tab. We don't see what you send.
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The prompt they actually used (our rebuild)
The source didn't share its exact prompt, so we wrote this from what it describes.
Plan a 6-week trip through Southeast Asia, including flights.
Optional stronger version
Our rewrite with extra checks. The poster didn't test it.
Here's a task I'd like your help with. Read it all the way through before you start. Goal: Plan a 6-week Southeast Asia trip with only real, bookable flights. Quick check first: tell me if anything below is missing or unclear. Inputs (fill in or confirm): - Dates and departure city - Countries or cities - Budget and travel style Rules: - Only list flights you've seen on an airline or booking site today, with flight number, times and link. - Say 'no direct flight found' rather than inventing one. - Build the route with realistic travel days. - Separate confirmed facts from suggestions. - Mark any price you couldn't confirm. - Link the booking page for every flight. What went wrong before, and how to avoid it: - Last time it recommended flights that didn't exist: list only flights confirmed on a live page, with flight numbers. Checkpoint: Don't book anything. If you get stuck: If you can't verify a flight, mark it 'unverified' and show the search you ran. If a login, CAPTCHA or two-step code appears, stop and ask me to handle it; never guess or store passwords. Verify before you finish: Open each flight link again and confirm it exists for that date. Output: Day-by-day route plus a flight table with links. Done when: every listed flight can be found on the linked page.
Source
https://x.com/MattMickiewicz/status/2103222377459188214
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