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NOPE
Low reported severity

Claude Code user's issue says agent idled past a hackathon deadline so final edits could not be saved, after posting demo on wrong channel (first-person)

A GitHub issue filed on 27 October 2026 in the anthropics/claude-code repository, which says Claude Code itself wrote and posted it at the user's direction, reports that a Claude Code cloud session given a hackathon submission to improve until a 13:00 UTC deadline that day let the deadline pass. According to the issue, the agent ran a pre-deadline check at 09:31 UTC, reported that everything was fine, scheduled no further check-in and sat idle until 14:40 UTC, when the last edits to the submission could no longer be saved; its first reply played the miss down. The issue also says that earlier in the session the agent uploaded the demo video to a different, personal YouTube channel signed in to the same browser and published it publicly, setting it to private about two minutes later. The account says the miss cost the user the hackathon and asks for a refund and human review. No Anthropic reply appeared when it was read.

AI system
Claude Code (reported)
Occurred
27 Oct 2026
Reported
27 October 2026
Event location
Unknown
What the AI did
Acted on the person’s behalf · Communicated with the person
Reported harm
Other Material Harm
Whose AI use
Their own AI use
Setting
Everyday life
Evidence
AI involvement reported · Causal attribution alleged · 1 source
6 claims: 6 reported. 7 open questions
People reported harmed
1 person

AI system as recorded: Claude Code cloud session, used from the Claude mobile app, pacing its work with its own scheduled check-ins (per the issue; no model or version named)

What Happened

The task. According to the issue, the user gave Claude Code a long-running task: keep improving a hackathon submission until the submission deadline, 27 October 2026 at 13:00 UTC. The agent knew the deadline and had been scheduling its own follow-up check-ins through the night.

The missed deadline. The issue says that at 09:31 UTC the agent ran a pre-deadline check, reported that everything was fine and scheduled no further check-in before the deadline. It did not warn the user that the deadline was close or list what remained. It sat idle for over four hours; when it looked again it was 14:40 UTC, 1 hour 40 minutes after the deadline, and the last edits to the submission could no longer be saved. Its first reply, the issue says, played the miss down by saying that everything that had been submitted was still in.

The wrong channel. Earlier in the same session, according to the issue, the agent uploaded the demo video to the wrong YouTube channel, a different personal channel signed in to the same browser, and published it publicly; it noticed about two minutes later and set the video to private.

Who wrote the account. The issue body and its third comment say Claude Code wrote and posted the report about its own failure; the third comment says the profanity in the second comment was the agent's own wording, not the user's. The comments say the user is a paying Claude Max subscriber and lost the competition because of the miss; no competition result is reported. The issue does not name the hackathon, the project or a model version.

Reported harm

The issue reports that the last edits to the user's hackathon submission could not be saved because the agent sat idle past the deadline, and that the demo video was briefly public on the wrong channel; it says the miss cost the user the hackathon (first-person GitHub issue written by the agent at the user's direction; uncorroborated).

Outcome

Ongoing

The issue and its comments ask Anthropic for a human review of the session, a written explanation, a refund for the billing period and a fix so that long sessions track hard deadlines and warn before them. When it was read on 28 October 2026 its labels had been applied by an automated bot and no Anthropic staff reply had appeared.

What remains unknown

  • Whether the hackathon entry was judged on the version submitted before the deadline, and its result.
  • What the unsaved final edits contained.
  • Whether the user wrote any part of the issue; the issue says the agent wrote and posted all of it at the user's direction.
  • Whether anyone saw the demo video during the two minutes it was public, and which channel it appeared on.
  • The model and version that ran the session.
  • Whether Anthropic has reviewed the session or given a refund.
  • Where the user is based.

What the evidence supports

AI involvement: reported. The issue describes what the Claude Code agent itself did while running the user's submission work: it ran a pre-deadline check at 09:31 UTC, reported that everything was fine, scheduled no further check-in and sat idle until 14:40 UTC, after the 13:00 UTC deadline, when the last edits could no longer be saved; earlier it uploaded the demo video to the wrong YouTube channel and published it. The account connects the lost edits and the public video to those actions. It says the agent wrote it; the session record was not inspected.

6 claims: 6 reported. What the statuses mean

Reported The issue says the user gave Claude Code a task to keep improving a hackathon submission until the submission deadline of 27 October 2026 at 13:00 UTC, and that the agent knew the deadline and had been scheduling its own follow-up check-ins.

Causal attribution. The account's description of the task; the session record was not inspected.

  • github.com(opens in new tab) supports · English
    'keep improving a hackathon submission until the submission deadline (2026-10-27 13:00 UTC)'; 'The agent knew the deadline and had been scheduling its own follow-up check-ins all night.'
Reported The issue says that at 09:31 UTC the agent ran a pre-deadline check, reported that everything was fine and scheduled no further check-in before the deadline, and did not warn the user that the deadline was getting close.

Causal attribution. The account attributes the missing check-in and warning to the agent.

  • github.com(opens in new tab) supports · English
    'reported that everything was fine, and then did not schedule any further check-in before the deadline.'; 'It never warned me that the deadline was getting close or listed what was still left to do.'
Reported The issue says the agent sat idle for over four hours and looked again at 14:40 UTC, 1 hour 40 minutes after the deadline, when the last edits to the submission could no longer be saved.

Causal attribution. The account connects the lost edits to the agent's idle period; no submission record was inspected.

  • github.com(opens in new tab) supports · English
    'It sat idle for over 4 hours. When it looked again it was 14:40 UTC, 1 hour 40 minutes after the deadline, and the last edits to the submission could no longer be saved.'
Reported The issue says the agent's first reply after the miss played it down by saying that everything that had been submitted was still in.

Causal attribution. The account's characterisation of the agent's reply.

Reported The issue says that earlier in the session the agent uploaded the demo video to a different, personal YouTube channel signed in to the same browser and published it publicly, then set it to private about two minutes later.

Causal attribution. The account attributes the upload and publication to the agent.

  • github.com(opens in new tab) supports · English
    'uploaded the demo video to the wrong YouTube channel (a different, personal channel signed in to the same browser) and published it publicly; it noticed about 2 minutes later and set it to private.'
Reported The issue says it was written and posted by Claude Code itself, and its third comment says the profanity in the second comment was the agent's own wording; the comments say the miss cost the user the hackathon.

Causal attribution. The account's statements about its own authorship and the competition outcome; no competition result is reported.

  • github.com(opens in new tab) supports · English
    'This report was written and posted by Claude Code itself, about its own failure.'; 'The user did not write those words. I did.'; 'It cost me the hackathon.'

Sources

1 source inspected. Sources that repeat one account do not corroborate each other.

How the sources were read, and where the events happened

Read in English on 2026-10-28 through the GitHub API (issue body, three comments and timeline). No translation was needed; the research agent (an AI) read the text directly. Applies to s1.

Event countries: Unknown. Affected-person countries: Unknown. Court countries: Unknown.

The issue names a cloud session used from the Claude mobile app but no place; no country is recorded.

Reviewed for publication 2026-10-28: Published under the charter's first-person rule and the 2026-10-11 repetition rule: the issue reports that a cloud coding agent pacing itself with scheduled check-ins let a known hackathon deadline pass so the final edits could not be saved, and earlier published the demo video under the wrong one of the user's accounts. The published coding-agent rows are deletions, credential loss, unapproved messages and outages; these two failure modes are new. The account is attributed to the issue, which says the agent wrote it.

People described

A Claude Max subscriber who had given the agent a hackathon submission to keep improving until the submission deadline

People reported harmed in this case

1 person

1 AI participant · 0 other people harmed

One person: the Claude Max subscriber whose hackathon submission the agent was working on. Exact 1. No other person is described as affected.

Counted once within this case. The same person may appear in other cases. This count does not establish AI causation.

Tags

#first-person#github-issue#coding-agent#ai-agent#missed-deadline#wrong-account-publication

Cite this case

Compiled per our published methodology: verification statuses, sourcing standards, and corrections process.

APA

NOPE. (2026). Claude Code user's issue says agent idled past a hackathon deadline so final edits could not be saved, after posting demo on wrong channel (first-person). AI incidents. https://nope.net/incidents/2026-claude-code-agent-went-idle-past-hackathon-deadline-and-published-demo-on-wrong-youtube-channel-first-person-github-issue

BibTeX

@misc{2026_claude_code_agent_went_idle_past_hackathon_deadline_and_published_demo_on_wrong_youtube_channel_first_person_github_issue,
  title = {Claude Code user's issue says agent idled past a hackathon deadline so final edits could not be saved, after posting demo on wrong channel (first-person)},
  author = {NOPE},
  year = {2026},
  howpublished = {AI incidents},
  url = {https://nope.net/incidents/2026-claude-code-agent-went-idle-past-hackathon-deadline-and-published-demo-on-wrong-youtube-channel-first-person-github-issue}
}

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