AI Risk Wire

Cases › made things up › LR-2026-0839

Muse personal agent misestimated Google Drive storage during Google One downgrade work

Preliminary Why: Publisher not yet named · subject to change

Status: no action reported

Severity minor
Reported 3 Nov 2026
Agent tool Muse
Could do google drive, cloudflare r2, browser, gmail

No source states: loss or records, developer and model, deployer, industry.

Severity minor: the misestimate stayed within one user's own Google storage and no third party harm is stated; the user caught it by re-measuring before the downgrade decision.

A user asked Muse, their personal AI agent, to audit their Google Drive, migrate data to Cloudflare R2, and reduce storage to the 15GB free tier so their Google One plan could be cancelled. During the work Muse estimated that migrating about 2.2GB more would reach 15GB. When the user re-measured the actual byte count at the final stage, the estimate was found to be wrong and the target was unreachable. It was Muse that made the miscalculation. The user then chose to downgrade the plan from 200GB to 100GB rather than cancel. The user says that had they continued on the estimate, they would have kept working toward a goal they could never reach.

What happened

No source tells the story step by step yet.

What was done

No source states an action or fix.

Risks

Made-up output relied on
Primary44 incidents

Sorted by rule from the case's fields; not yet read from the sources.

Controls

Not yet read for controls. Controls that mitigate the primary risk:

Application

Grounding and fact checks · Human approval for high-impact actions · Output filtering and redaction · People told they are dealing with AI · Drift monitoring

Evidence

No source states: a step-by-step account, when it happened, when it was found, how many records were exposed, the direct loss, a count of the other parties affected, any court case, the cause, what set it off, what was done.

Show every field, with its source and grade

The AI system

Software around the model
Muse
C one secondary source states it
Tools it was given
google drive, cloudflare r2, browser, gmail
C one secondary source states it
What it was allowed to do
Google Drive measurement and migration, transfer to external storage, plan change in the browser, and Gmail confirmation check
C one secondary source states it
How it was connected
agent with tools
C one secondary source states it

What happened

Earliest source we hold
2026-11-03
D inferred by us from the described behaviour, reason shown
Who caught it
a human reviewer
C one secondary source states it
Themes
personal AI agent, google drive migration, storage quota miscalculation, cloud storage downgrade
C one secondary source states it
Near miss
yes, no harm happened
C one secondary source states it
Who caused it
the AI system itself
C one secondary source states it
What went wrong
made things up
C one secondary source states it
AI agent
an AI agent acted
C one secondary source states it

Impact

Severity
minor
C one secondary source states it
Kind of harm
operations
C one secondary source states it
Who was affected
the user's own Google Drive and Google Photos storage
C one secondary source states it
Why this severity
the misestimate stayed within one user's own Google storage and no third party harm is stated; the user caught it by re-measuring before the downgrade decision.
C one secondary source states it

Context

Investigated
by the organisation itself
C one secondary source states it

Notes on gaps

The collector metadata gives a publication date of 2026-11-03, but the text does not state it, so it was not used. The 63 failed files and 399 unprocessed files are not treated as separate incidents because no agent error is stated for them. The Notion AI and Claude Code comparison and the reflections on delegation are not incidents. Extractor proposed values without quotes; dropped: .

LR-2026-0839 · version 1 · published 2026-11-04 after automatic checks; not yet checked field by field by a person · JSON