[BUG] Compactation Fails Agent forgets everything

Description

The /compact and auto compact fails.

Plugins

"oh-my-opencode@beta",     "opencode-antigravity-auth@beta",     "@plannotator/opencode@beta",     "@franlol/opencode-md-table-formatter@0.0.3",     "@tarquinen/opencode-dcp@latest",     "@mohak34/opencode-notifier@latest"

OpenCode version

1.1.12

Steps to reproduce

Run Sisyphus agent with Claude opus 4.5 High think (Antigravity)
Manual/Auto Compact fails when context is near to full (90% in my case)

Screenshot and/or share link

Operating System

WSL Ubuntu 24.04

Terminal

Windows Terminal

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

Compaction Failing to Run on Time #6286: Compaction Failing to Run on Time
[BUG]: Auto compaction not triggering reliably with Anthropic models #6068: Auto compaction not triggering reliably with Anthropic models
Auto-compaction enabled by default, but context_length_exceeded errors still occur in agent workflows #8089: Auto-compaction enabled by default, but context_length_exceeded errors still occur in agent workflows
Session automatically compacted, destroying the entire working context #2945: Session automatically compacted, destroying the entire working context
Model in BUILD mode does not have enough context to continue after compaction #3031: Model in BUILD mode does not have enough context to continue after compaction
compact causes llm to forget convo #2234: compact causes llm to forget convo
Session Todo-list is forgotten after compaction #5934: Session Todo-list is forgotten after compaction
Auto-compaction causes the subagent to lose its original context, possibly the system prompt as well #6535: Auto-compaction causes the subagent to lose its original context, possibly the system prompt as well
Model selection is "lost" on continuation and Agent selection is "lost" on compaction #8349: Model selection is "lost" on continuation and Agent selection is "lost" on compaction

Feel free to ignore if none of these address your specific case.

Weird, my OpenCode is smart enough to clear drop cache of context to recover memory and continues to work. I am using desktop OpenCode. You should probably upgrade to 1.1.19 and stop wasting time on 1.1.12.

Weird, my OpenCode is smart enough to clear drop cache of context to recover memory and continues to work. I am using desktop OpenCode. You should probably upgrade to 1.1.19 and stop wasting time on 1.1.12.

1.1.19 Have serious bugs when using GitHub copilot, it consumes multiple premium requests & has wiped out monthly credits of many people

Weird, my OpenCode is smart enough to clear drop cache of context to recover memory and continues to work. I am using desktop OpenCode. You should probably upgrade to 1.1.19 and stop wasting time on 1.1.12.

1.1.19 Have serious bugs when using GitHub copilot, it consumes multiple premium requests & has wiped out monthly credits of many people

Thanks for letting me know. 1.1.16 works well. 1.1.15 also works well.

OpenCode compaction needs serious work, even when it does work it's beyond terrible.
There are a bunch of good PR's on here but the powers that be apparently aren't interested.

Super weird.

OpenCode is still better than 99% of carp on GitHub.

@rekram1-node

OpenCode compaction needs serious work, even when it does work it's beyond terrible.
There are a bunch of good PR's on here but the powers that be apparently aren't interested.

Super weird.

@rekram1-node

I can look into it, which PRs are you referring to?

It's weird cause some people say it's great, and I never hit it so I can imagine it leaves much to be desired haha

I can look into it, which PRs are you referring to?

It's weird cause some people say it's great, and I never hit it so I can imagine it leaves much to be desired haha

I think if they all try OpenCode with OpenCode Zen then they might realize it's their LLMs that are letting them down. I have $200 dollar a month ChatGPT account yet OpenCode Zen still does a better job at programming.

This very second OpenCode Zen MiniMax is beating ChatGPT Codex.

I can look into it, which PRs are you referring to?

It's weird cause some people say it's great, and I never hit it so I can imagine it leaves much to be desired haha

This is the most promising one: #4659

@rekram1-node

@rekram1-node Still the issue on 1.1.34

Here is the session's md file:

https://drive.google.com/file/d/1EBcJWzI5GR9pB-5bd7O5M3EJ6N2FJT7P/view?usp=sharing

I am experiencing this bug also on 1.1.51 on macos server implementation

im still experiencing the same issue in 1.16.2

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

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[BUG] Compactation Fails Agent forgets everything #8394

Description

Plugins

OpenCode version

Steps to reproduce

Screenshot and/or share link

Operating System

Terminal

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[BUG] Compactation Fails Agent forgets everything #8394

Description

Description

Plugins

OpenCode version

Steps to reproduce

Screenshot and/or share link

Operating System

Terminal

Activity

github-actions commented on Jan 14, 2026

super-unique-ai commented on Jan 14, 2026

dhruvkej9 commented on Jan 14, 2026

super-unique-ai commented on Jan 14, 2026

SteveyBoros commented on Jan 15, 2026

super-unique-ai commented on Jan 15, 2026

dhruvkej9 commented on Jan 15, 2026

rekram1-node commented on Jan 15, 2026

super-unique-ai commented on Jan 15, 2026

SteveyBoros commented on Jan 16, 2026

dhruvkej9 commented on Jan 23, 2026

herbievine commented on Mar 4, 2026

afmuhaidib commented on Jun 11, 2026

github-actions commented on Aug 11, 2026

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