Find where the wrong belief is written down, replace it there, with the right version and why, look for copies, and then test that the fix took. A correction made in a chat lasts only if it also changes what future sessions read. If the wrong note is still there, a later session may read it and repeat the mistake.
What works
Find the source first. An agent's wrong belief usually comes from one of a few places: a note in its memory, its standing instructions, a shared procedure, an old message it re-read, or the model's own general knowledge. Ask the agent where it got it, then check: an agent can be wrong about that too.
Replace the wrong text; don't add a correction beside it. Two notes that disagree leave the next session guessing which one is true, and it may guess the old one.
Say why, and when. "Corrected 21 October: Saturday posts can mention Sunday's specials. The earlier rule, no posts about Sunday, came from a misread of the opening hours." The reason helps the next agent not to change it back.
When there's nothing to edit, add something that overrides it. A belief from the model's general knowledge, or from a message that's part of the record, can't be rewritten. Put the right fact, with its source, where every session reads it, such as the role's standing instructions or its handover, and leave the old record as it was.
Look for copies. The same wrong fact can be in a handover, a procedure and a decision. Fix every one, or point them all at the one place that's right.
Look at the history. Who wrote it, and when? If an agent keeps writing the wrong thing back, look at what it reads before it does.
Protect the rules that mustn't drift. Some things are the owner's to decide, not the agent's to learn. Keep those where agents can read them but not change them.
Test the fix. Give the agent the task that went wrong, as it was given before, without the correction in your request: in its current session, after it rereads the corrected page, and in a fresh one. If it still gets it wrong, ask what it read: another copy, an old context, a page it skipped, or the same wrong inference made again.
Check what was done while the belief was wrong. Correcting a note doesn't undo a post that went out.
Doing it in Mind Made Many
A role's memory is its notebook, which you read and edit from the role's panel on the canvas. Every change to a page's text keeps the text it replaced, with the recorded author and date of each revision. At Harbor Lane Bakery, Social Media's notebook says "No posts about Sunday specials", a rule that came from a misread of the opening hours.
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Select Social Media on the canvas, open its Notebook, and open the page.
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Look at its Versions: what changed since each earlier revision, and who and when each is recorded as. If its agents wrote the wrong rule, look at what they read before they did.
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Choose Edit, correct the text with the reason and the date, and choose Save. Or restore an earlier revision: it's written back as the newest one, and the text it replaced is kept too.
From Harbor Lane Bakery, an organization made up for these pictures. -
Check Start here and the role's other pages for copies of the same mistake, and correct them too. If the wrong belief is in the role's instructions, correct it in the role's panel. If it's in a skill, ask your AI to change the skill: the canvas shows skills by name only. Instructions and skills are part of the canvas, so those changes wait in the draft until you go live.
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For a rule the role's agents mustn't change, choose Make it the board's. From then on they're told to follow it after their instructions and before the rest of the notebook. Agents connected as roles can't change, rename, move or delete it; board members can, on the canvas, and so can the owner's own Claude or ChatGPT, which acts for the whole organization rather than as one role. Let its agents change it hands it back to them.
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Test it: ask the agent filling Social Media to reread that page, then give it Saturday's post as you did before, without mentioning Sunday. A post that leaves Sunday out is fine; the mistake is back if it says it can't mention Sunday's specials. Then do the same in a fresh chat.
A page that's wrong from start to finish can be deleted, and restored for 30 days. Start here can't be deleted, only rewritten. A page that held a secret can be purged, with all its versions: Start here from its own page, any other page from the notebook's Deleted pages once it's deleted.
What doesn't work yet
- Nothing finds wrong facts in a notebook for you: a person, or a reviewer role, has to notice.
- Restoring an earlier revision brings back its text; the page's current title stays. Correcting or restoring a page doesn't undo what the agent already did.
- A page keeps up to 30 versions, each with its recorded author and date: renaming a page records who renamed it, so a later version can be credited to the renamer rather than the writer.
- A change to a notebook takes effect at once. An agent that's running sees it when it next reads that page, so tell it if it matters now.