{"schema_version":"0.10.0","id":"LR-2026-0839","record_version":1,"title":"Muse personal agent misestimated Google Drive storage during Google One downgrade work","verification":{"human_verified":false,"method":"automated_gate","auto_verified":true,"score":45.5,"score_breakdown":{"source_authority":12.1,"independent_corroboration":7.0,"implicated_party_confirmed":0.0,"citation_integrity":14.0,"specificity":0.0,"completeness":5.12,"unhedged_language":5.0},"checks":{"schema_valid":true,"every_field_cited":true,"quotes_verbatim":true,"source_fetched":true,"distinct_incident":true,"dates_plausible":true,"sources_agree":true,"source_describes_incident":true,"severe_backed_by_source":true,"record_integrity":true,"eligible":true,"about_this_case":true},"gate_version":"gate-2026-10-18.7","cross_check_model":null,"cross_check_agreement":null,"duplicate_of":null,"verified_by":null,"verified_at":"2026-11-04","extraction_run_id":null,"evidence_level":{"level":"preliminary","reason":"Publisher not yet named · subject to change","original_document":null,"reports_total":1,"reports_independent":0,"reports_derivative":0,"developing":true,"disputed":false,"rules_version":"evidence-2026-10-29.1","computed_at":"2026-11-04","history":[{"date":"2026-11-04","from_level":null,"to_level":"preliminary","reason":"Publisher not yet named · subject to change"}]},"sources_hash":"2416cd0915139b314194c5e7b7c91b6c700c46574739f1e63bc71f6a74353085"},"system":{"model_name":null,"model_version":null,"developer":"unknown","harness":"Muse","tools_granted":["google_drive","cloudflare_r2","browser","gmail"],"permissions_scope":"Google Drive measurement and migration, transfer to external storage, plan change in the browser, and Gmail confirmation check","autonomy_level":"unknown","guardrails_present":[],"deployment_context":"unknown","tier":null,"lifecycle_stage":null,"integration_type":"agentic_with_tools","intended_use":null,"safeguard_state":null,"production_intended":null},"event":{"date_occurred":null,"date_disclosed":"2026-11-03","incident_class":"hallucination","failure_class":null,"agent_involved":true,"secondary_failure_classes":[],"trigger":"unknown","duration":null,"detection_method":"human_review","summary":"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.","tags":["personal-ai-agent","google-drive-migration","storage-quota-miscalculation","cloud-storage-downgrade"],"date_detected":null,"near_miss":true,"root_cause":null,"root_cause_detail":null,"failure_class_detail":null,"responsible_party":null,"adversarial_actor":"the_system_itself","input_provenance":null,"time_to_contain":null,"operations_paused":null,"remediation":null,"precursor_events":null},"impact":{"direct_loss_usd":null,"remediation_hours":null,"records_exposed":null,"third_parties_affected_count":null,"severity":"minor","severity_because":"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.","harm_class":["operational"],"affected_description":"the user's own Google Drive and Google Photos storage","protected_class_involved":null,"data_categories_exposed":[],"loss_range_usd":null,"reversibility":null,"downstream_exposure_count":null},"evidence":{"sources":[{"url":"https://note.com/sakanamusubi/n/nfd151e12ec29?hl=en","publisher":"note（ノート）","date":"2026-11-03","type":"press","title":"I wanted to cancel Google One and entrusted the entire task to my personal AI agent, Muse, only to be told that 'cancellation is impossible'｜サカナ結び","archived_url":null,"attachment":"first_report"}],"per_field_confidence":{"system.developer":"D","system.harness":"C","system.tools_granted":"C","system.permissions_scope":"C","system.autonomy_level":"D","system.deployment_context":"D","system.integration_type":"C","event.date_disclosed":"D","event.trigger":"D","event.detection_method":"C","event.summary":"C","event.tags":"C","event.near_miss":"C","event.adversarial_actor":"C","event.incident_class":"C","event.agent_involved":"C","impact.severity":"C","impact.harm_class":"C","impact.affected_description":"C","impact.severity_because":"C","context.country":"D","context.denominator_available":"D","context.incident_evidence":"C"},"field_citations":{"system.harness":[{"source_index":0,"quote":"I decided to entrust my personal AI agent, \"Muse,\" which I use regularly, with the task of auditing my drive and migrating data."}],"system.tools_granted":[{"source_index":0,"quote":"Everything from measuring Google Drive, transferring to external storage, the plan change procedure in the browser, and verification with the confirmation email received in Gmail was connected through a single interface."},{"source_index":0,"quote":"I chose Cloudflare R2 as the destination storage."}],"system.permissions_scope":[{"source_index":0,"quote":"Everything from measuring Google Drive, transferring to external storage, the plan change procedure in the browser, and verification with the confirmation email received in Gmail was connected through a single interface."}],"system.integration_type":[{"source_index":0,"quote":"Muse began by recounting everything inside my Google Drive."}],"event.detection_method":[{"source_index":0,"quote":"However, when I re-measured the actual byte count in the final stage, it turned out that this estimate was fundamentally wrong."}],"event.summary":[{"source_index":0,"quote":"I decided to entrust my personal AI agent, \"Muse,\" which I use regularly, with the task of auditing my drive and migrating data."},{"source_index":0,"quote":"I chose Cloudflare R2 as the destination storage."},{"source_index":0,"quote":"During the work, Muse had estimated, \"If you migrate an additional 2.2GB or so, you will reach the 15GB free tier.\""},{"source_index":0,"quote":"However, when I re-measured the actual byte count in the final stage, it turned out that this estimate was fundamentally wrong."},{"source_index":0,"quote":"No matter how I calculate it, it won't reach the 15GB free tier."},{"source_index":0,"quote":"It was Muse that made the miscalculation, and it was also Muse that re-measured it and found the truth."},{"source_index":0,"quote":"I decided to leave the largest videos in Photos and downgrade my subscription plan from 200GB (440 yen/month) to 100GB (290 yen/month)."},{"source_index":0,"quote":"If I had proceeded while believing the rough estimate, I would have continued working endlessly toward a goal I could never reach, convinced that \"I should be able to cancel soon.\""}],"event.tags":[{"source_index":0,"quote":"I decided to entrust my personal AI agent, \"Muse,\" which I use regularly, with the task of auditing my drive and migrating data."},{"source_index":0,"quote":"However, when I re-measured the actual byte count in the final stage, it turned out that this estimate was fundamentally wrong."},{"source_index":0,"quote":"I decided to leave the largest videos in Photos and downgrade my subscription plan from 200GB (440 yen/month) to 100GB (290 yen/month)."}],"event.near_miss":[{"source_index":0,"quote":"If I had proceeded while believing the rough estimate, I would have continued working endlessly toward a goal I could never reach, convinced that \"I should be able to cancel soon.\""}],"event.adversarial_actor":[{"source_index":0,"quote":"It was Muse that made the miscalculation, and it was also Muse that re-measured it and found the truth."}],"event.incident_class":[{"source_index":0,"quote":"During the work, Muse had estimated, \"If you migrate an additional 2.2GB or so, you will reach the 15GB free tier.\""},{"source_index":0,"quote":"However, when I re-measured the actual byte count in the final stage, it turned out that this estimate was fundamentally wrong."}],"event.agent_involved":[{"source_index":0,"quote":"I left all the tedious manual work, such as counting, moving, and verifying, entirely to Muse."},{"source_index":0,"quote":"All I did was \"decide on the policy\" and \"provide judgments at key points.\""}],"impact.severity":[{"source_index":0,"quote":"However, when I re-measured the actual byte count in the final stage, it turned out that this estimate was fundamentally wrong."},{"source_index":0,"quote":"A complete cancellation was impossible in the first place."}],"impact.harm_class":[{"source_index":0,"quote":"If I had proceeded while believing the rough estimate, I would have continued working endlessly toward a goal I could never reach, convinced that \"I should be able to cancel soon.\""}],"impact.affected_description":[{"source_index":0,"quote":"Even if I deleted all the original Google Drive files and the migrated Google Photos data, the remaining total capacity would be 18,972,316,514 bytes (about 17.7GB)."}],"impact.severity_because":[{"source_index":0,"quote":"However, when I re-measured the actual byte count in the final stage, it turned out that this estimate was fundamentally wrong."},{"source_index":0,"quote":"A complete cancellation was impossible in the first place."}],"context.incident_evidence":[{"source_index":0,"quote":"I also verified the final touches with numbers for certainty."}]},"notes_on_gaps":"Single first-person blog post; no event date, so date_occurred and date_disclosed are null. The collector metadata gives a publication date of 2026-11-03, but the text does not state it, so it was not used. No developer, model, or model version is named; Muse's developer is coded unknown and no model name was inferred. Costs are in yen (440 and 290 yen per month) and no yen-to-USD conversion was made, so direct_loss_usd is null. No record counts, remediation hours, or third-party counts are stated in a way that measures harm from the misestimate; the file counts (8,496 total, 7,556 migrated, 63 failed, 399 unverified) relate to the migration, not exposure. The two days of work are not coded as remediation hours. failure_class is null because a wrong storage projection does not match any listed agent mechanism, and the author does not describe deception, sabotage, or tool misuse. trigger is unknown because no cause of the miscalculation is stated. Detection is coded human_review because the author did the re-measurement, although the author also writes that Muse re-measured; this is a judgement call. autonomy_level is unknown: the work ran overnight with judgments at key points, but no approval or monitoring arrangement is stated. Severity is minor on the test of a single user's account with no third party stated; no loss figure exists. 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. The author's country is not stated (yen pricing alone does not establish it), so context.country is unknown. Extractor proposed values without quotes; dropped: ['context.country', 'context.denominator_available', 'event.responsible_party', 'event.root_cause', 'event.trigger', 'system.autonomy_level', 'system.deployment_context', 'system.developer']. Single secondary source; corroborate before upgrading any field to B. [2026-11-04: evidence level set: Preliminary (Publisher not yet named · subject to change)]"},"context":{"industry":null,"org_size_band":null,"country":"unknown","denominator_available":false,"denominator":null,"related_incident_ids":[],"systemic_exposure":null,"shared_model_id":null,"upstream_incident_id":null,"incident_evidence":{"log_completeness":null,"tamper_evidence":null,"timestamp_reliability":null,"investigation_independence":"internal","redaction_summary":null,"analysis_method":null,"prompt_output_retention":null},"regulatory":null,"coverage":null}}