feat: codex sampler

[jif-oai]

Add a pure sampler using the Codex auth and model config. To be used by other binary such as tape recorder

[jif-oai]

@codex reveiw

[jif-oai]

@codex review

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 6d212c9fd9

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[jif-oai]

@codex review

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 8e4c756a7c

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

PR Review Result

I reviewed this PR and did not find any blocking issues.

The change is cohesive: it adds a hidden internal responses subcommand to the CLI, wires it into dispatch, and implements a new command that reads a streaming Responses payload from stdin, authenticates via current Codex config/auth selection, and prints normalized event JSON lines. It also adds a parser-level test for command visibility/parsing and the required codex-api dependency linkage. codex-rs/cli/src/main.rsL153-L160 codex-rs/cli/src/main.rsL1016-L1032 codex-rs/cli/src/main.rsL1684-L1691 codex-rs/cli/src/responses_cmd.rsL10-L119 codex-rs/cli/Cargo.tomlL19-L28 codex-rs/Cargo.lockL1663-L1673

Checks I ran

• ⚠️ git diff --stat e6947f85f6620390ebca1c48353773ece735c08e..6d212c9fd9958edd0db27cc32c47d3067a11cfcc (base SHA from PR info was not present locally, so this exact range could not be resolved).
• ✅ git show --stat --oneline 6d212c9 --
• ✅ git diff --name-only 2f6fc7c137bfa1b607b97bd932370022bea198eb..6d212c9fd9958edd0db27cc32c47d3067a11cfcc
• ⚠️ cd codex-rs && cargo test -p codex-cli responses_subcommand_is_hidden_from_help_but_parses (build/test run hit environment disk exhaustion: No space left on device).

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