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Michael Bolin f48dd99f22 feat: add support for OpenAI tool type, local_shell (#961 )

The new `codex-mini-latest` model expects a new tool with `{"type":
"local_shell"}`. Its contract is similar to the existing `function` tool
with `"name": "shell"`, so this takes the `local_shell` tool call into
`ExecParams` and sends it through the existing
`handle_container_exec_with_params()` code path.

This also adds the following logic when adding the default set of tools
to a request:

```rust
let default_tools = if self.model.starts_with("codex") {
    &DEFAULT_CODEX_MODEL_TOOLS
} else {
    &DEFAULT_TOOLS
};
```

That is, if the model name starts with `"codex"`, we add `{"type":
"local_shell"}` to the list of tools; otherwise, we add the
aforementioned `shell` tool.

To test this, I ran the TUI with `-m codex-mini-latest` and verified
that it used the `local_shell` tool. Though I also had some entries in
`[mcp_servers]` in my personal `config.toml`. The `codex-mini-latest`
model seemed eager to try the tools from the MCP servers first, so I
have personally commented them out for now, so keep an eye out if you're
testing `codex-mini-latest`!

Perhaps we should include more details with `{"type": "local_shell"}` or
update the following:


https://github.com/openai/codex/blob/fd0b1b020818dfe8aaf7eb68425f09e86ab1b819/codex-rs/core/prompt.md

For reference, the corresponding change in the TypeScript CLI is
https://github.com/openai/codex/pull/951.

f48dd99f22 · 2025-05-16 14:38:08 -07:00

History

src

feat: add support for OpenAI tool type, local_shell (#961 )

2025-05-16 14:38:08 -07:00

tests

chore: expose codex_home via Config (#941 )

2025-05-15 00:30:13 -07:00

Cargo.toml

feat: record messages from user in ~/.codex/history.jsonl (#939 )

2025-05-15 16:26:23 -07:00

prompt.md