openai / openai/codex

File checkpoint / revert

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app-server enhancement extension
Dominant language
Rust
Stars
125k
Forks
19.4k
PR merge metrics
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Description

What variant of Codex are you using?

Codex with our Eclipse IDE plugin (codexide.org)

What feature would you like to see?

thread/rollback is marked DEPRECATED and states in no uncertain terms that it only undoes the history : "Clients are responsible for reverting these changes."
There is no occurrence of checkpoint, revert, snapshot, or dryRun in the v2 schema.
A reliable "Undo Codex" is therefore impossible to offer, especially after shell commands.
The cumulative diff only exists at the turn level (turn/diff/updated), not at the thread level.

Additional information

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the v2 schema and the deprecated thread/rollback behavior, including turn/diff/updated. Define the checkpoint/revert contract and verify that completion supports reliable undo after shell commands.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
api, devtools
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
35/100

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