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Codex server-side compaction fails #19740

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Codex server-side compaction fails#19740
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bugSomething isn't workingconnectivityIssues involving networking or endpoint connectivity problems (disconnections)contextIssues related to context management (including compaction)

Description

@AriaShishegaran
AriaShishegaran
opened on Apr 27, 2026

What issue are you seeing?

Error running remote compact task: stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses/compact)

getting this on session that are longer or involve screenshots or browser use.

What steps can reproduce the bug?

run a large context task, you'll get it, have the agent take screenshots or read network logs, or do browser use.

What is the expected behavior?

No response

Additional information

No response

Activity

  1. AriaShishegaran
    added
    bugSomething isn't working
    on Apr 27, 2026
  2. github-actions
    added
    CLIIssues related to the Codex CLI
    contextIssues related to context management (including compaction)
    connectivityIssues involving networking or endpoint connectivity problems (disconnections)
    on Apr 27, 2026

  3. github-actions commented on Apr 27, 2026

    @github-actions
    github-actionsBot
    on Apr 27, 2026 – with GitHub Actions
    Contributor

    Potential duplicates detected. Please review them and close your issue if it is a duplicate.

    Powered by Codex Action

  4. etraut-openai
    changed the title [-]Codex server-side compaction fails, what's the point of having it if it is not reliable and completely ruins the conversation.[/-] [+]Codex server-side compaction fails[/+] on Apr 27, 2026
  5. etraut-openai
    removed
    CLIIssues related to the Codex CLI
    on Apr 27, 2026

  6. presidenzo commented on May 7, 2026

    @presidenzo
    presidenzo
    on May 7, 2026

    Also seeing this on Codex Desktop for macOS.

    Thread ID: 019e0390-d329-74c3-b8ab-13a32d339c9b
    Codex App: 26.429.61741 (2429)
    Error:

    Error running remote compact task: stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses/compact)

    This is still happening today (2026-05-07).

  7. etraut-openai commented on Jun 29, 2026

    @etraut-openai
    etraut-openai
    on Jun 29, 2026
    Contributor

    Thanks for reporting this problem. Until recently, Codex used a separate endpoint and server-side logic for compaction. We recently switched to a more robust approach where the compaction logic is moved locally using the same endpoint as normal turns. This eliminates "remote compaction" errors and increases the stability and reliability of compaction operations. If you see further problems with compaction, please use /feedback and open a new bug report.

  8. etraut-openai
    closed this as completedon Jun 29, 2026
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