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Large snapshot diffs can hang session loading #29873

Closed as not planned
Closed as not planned
Large snapshot diffs can hang session loading#29873
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nexxeln

Description

@Yoshi-OOF
Yoshi-OOF
opened on May 29, 2026

Description

Opening a session with a very large edit diff can consume excessive memory or hang the TUI. In my repro, a formatter changed thousands of lines and continuing the session stalled while loading the diff-heavy turn.

Plugins

N/A

OpenCode version

1.15.12

Steps to reproduce

  1. Create a session with a tool result that changes thousands of lines in a tracked file.
  2. Continue or reopen the session.
  3. Open the diff-heavy turn in the TUI or web UI.

Screenshot and/or share link

N/A

Operating System

Windows 11

Terminal

Windows Terminal

Activity

  1. github-actions
    assigned
    nexxeln
    on May 29, 2026

  2. github-actions commented on May 29, 2026

    @github-actions
    github-actionsBot
    on May 29, 2026 – with GitHub Actions
    Contributor

    This issue might be a duplicate of an existing issue. Please check:

  3. github-actions commented on Jul 29, 2026

    @github-actions
    github-actionsBot
    on Jul 29, 2026 – with GitHub Actions
    Contributor

    To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.

  4. github-actions
    closed this as not plannedon Jul 29, 2026
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