This release represents a comprehensive transformation of the codebase from Codex to LLMX,
enhanced with LiteLLM integration to support 100+ LLM providers through a unified API.
## Major Changes
### Phase 1: Repository & Infrastructure Setup
- Established new repository structure and branching strategy
- Created comprehensive project documentation (CLAUDE.md, LITELLM-SETUP.md)
- Set up development environment and tooling configuration
### Phase 2: Rust Workspace Transformation
- Renamed all Rust crates from `codex-*` to `llmx-*` (30+ crates)
- Updated package names, binary names, and workspace members
- Renamed core modules: codex.rs → llmx.rs, codex_delegate.rs → llmx_delegate.rs
- Updated all internal references, imports, and type names
- Renamed directories: codex-rs/ → llmx-rs/, codex-backend-openapi-models/ → llmx-backend-openapi-models/
- Fixed all Rust compilation errors after mass rename
### Phase 3: LiteLLM Integration
- Integrated LiteLLM for multi-provider LLM support (Anthropic, OpenAI, Azure, Google AI, AWS Bedrock, etc.)
- Implemented OpenAI-compatible Chat Completions API support
- Added model family detection and provider-specific handling
- Updated authentication to support LiteLLM API keys
- Renamed environment variables: OPENAI_BASE_URL → LLMX_BASE_URL
- Added LLMX_API_KEY for unified authentication
- Enhanced error handling for Chat Completions API responses
- Implemented fallback mechanisms between Responses API and Chat Completions API
### Phase 4: TypeScript/Node.js Components
- Renamed npm package: @codex/codex-cli → @valknar/llmx
- Updated TypeScript SDK to use new LLMX APIs and endpoints
- Fixed all TypeScript compilation and linting errors
- Updated SDK tests to support both API backends
- Enhanced mock server to handle multiple API formats
- Updated build scripts for cross-platform packaging
### Phase 5: Configuration & Documentation
- Updated all configuration files to use LLMX naming
- Rewrote README and documentation for LLMX branding
- Updated config paths: ~/.codex/ → ~/.llmx/
- Added comprehensive LiteLLM setup guide
- Updated all user-facing strings and help text
- Created release plan and migration documentation
### Phase 6: Testing & Validation
- Fixed all Rust tests for new naming scheme
- Updated snapshot tests in TUI (36 frame files)
- Fixed authentication storage tests
- Updated Chat Completions payload and SSE tests
- Fixed SDK tests for new API endpoints
- Ensured compatibility with Claude Sonnet 4.5 model
- Fixed test environment variables (LLMX_API_KEY, LLMX_BASE_URL)
### Phase 7: Build & Release Pipeline
- Updated GitHub Actions workflows for LLMX binary names
- Fixed rust-release.yml to reference llmx-rs/ instead of codex-rs/
- Updated CI/CD pipelines for new package names
- Made Apple code signing optional in release workflow
- Enhanced npm packaging resilience for partial platform builds
- Added Windows sandbox support to workspace
- Updated dotslash configuration for new binary names
### Phase 8: Final Polish
- Renamed all assets (.github images, labels, templates)
- Updated VSCode and DevContainer configurations
- Fixed all clippy warnings and formatting issues
- Applied cargo fmt and prettier formatting across codebase
- Updated issue templates and pull request templates
- Fixed all remaining UI text references
## Technical Details
**Breaking Changes:**
- Binary name changed from `codex` to `llmx`
- Config directory changed from `~/.codex/` to `~/.llmx/`
- Environment variables renamed (CODEX_* → LLMX_*)
- npm package renamed to `@valknar/llmx`
**New Features:**
- Support for 100+ LLM providers via LiteLLM
- Unified authentication with LLMX_API_KEY
- Enhanced model provider detection and handling
- Improved error handling and fallback mechanisms
**Files Changed:**
- 578 files modified across Rust, TypeScript, and documentation
- 30+ Rust crates renamed and updated
- Complete rebrand of UI, CLI, and documentation
- All tests updated and passing
**Dependencies:**
- Updated Cargo.lock with new package names
- Updated npm dependencies in llmx-cli
- Enhanced OpenAPI models for LLMX backend
This release establishes LLMX as a standalone project with comprehensive LiteLLM
integration, maintaining full backward compatibility with existing functionality
while opening support for a wide ecosystem of LLM providers.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Sebastian Krüger <support@pivoine.art>
The TypeScript SDK's README incorrectly claimed that runStreamed() emits
"file diffs". However, the FileChangeItem type only contains metadata
(path, kind, status) without actual diff content.
Updated line 36 to accurately describe the SDK as providing "file change
notifications" instead of "file diffs" to match the actual
implementation in items.ts.
Fixes#5850
## Summary
This PR adds two new optional boolean fields to `ThreadOptions` in the
TypeScript SDK:
- **`networkAccess`**: Enables network access in the sandbox by setting
`sandbox_workspace_write.network_access` config
- **`webSearch`**: Enables the web search tool by setting
`tools.web_search` config
These options map to existing Codex configuration options and are
properly threaded through the SDK layers:
1. `ThreadOptions` (threadOptions.ts) - User-facing API
2. `CodexExecArgs` (exec.ts) - Internal execution args
3. CLI flags via `--config` in the `codex exec` command
## Changes
- `sdk/typescript/src/threadOptions.ts`: Added `networkAccess` and
`webSearch` fields to `ThreadOptions` type
- `sdk/typescript/src/exec.ts`: Added fields to `CodexExecArgs` and CLI
flag generation
- `sdk/typescript/src/thread.ts`: Pass options through to exec layer
## Test Plan
- [x] Build succeeds (`pnpm build`)
- [x] Linter passes (`pnpm lint`)
- [x] Type definitions are properly exported
- [ ] Manual testing with sample code (to be done by reviewer)
---------
Co-authored-by: Claude <noreply@anthropic.com>
## Summary
- Adds `ModelReasoningEffort` type to TypeScript SDK with values:
`minimal`, `low`, `medium`, `high`
- Adds `modelReasoningEffort` option to `ThreadOptions`
- Forwards the option to the codex CLI via `--config
model_reasoning_effort="<value>"`
- Includes test coverage for the new option
## Changes
- `sdk/typescript/src/threadOptions.ts`: Define `ModelReasoningEffort`
type and add to `ThreadOptions`
- `sdk/typescript/src/index.ts`: Export `ModelReasoningEffort` type
- `sdk/typescript/src/exec.ts`: Forward `modelReasoningEffort` to CLI as
config flag
- `sdk/typescript/src/thread.ts`: Pass option through to exec (+ debug
logging)
- `sdk/typescript/tests/run.test.ts`: Add test for
`modelReasoningEffort` flag forwarding
---------
Co-authored-by: Eric Traut <etraut@openai.com>
## Summary
- re-enable the TypeScript SDK test that verifies local images are
forwarded to `codex exec`
## Testing
- `pnpm test` *(fails: unable to download pnpm 10.8.1 because external
network access is blocked in the sandbox)*
------
https://chatgpt.com/codex/tasks/task_i_690289cb861083209fd006867e2adfb1
Extend `run` and `runStreamed` input to be either a `string` or
structured input. A structured input is an array of text parts and/or
image paths, which will then be fed to the CLI through the `--image`
argument. Text parts are combined with double newlines. For instance:
```ts
const turn = await thread.run([
{ type: "text", text: "Describe these screenshots" },
{ type: "local_image", path: "./ui.png" },
{ type: "local_image", path: "./diagram.jpg" },
{ type: "text", text: "Thanks!" },
]);
```
Ends up launching the CLI with:
```
codex exec --image foo.png --image bar.png "Describe these screenshots\n\nThanks!"
```
The complete `Input` type for both function now is:
```ts
export type UserInput =
| {
type: "text";
text: string;
}
| {
type: "local_image";
path: string;
};
export type Input = string | UserInput[];
```
This brings the Codex SDK closer to feature parity with the CLI.
Adresses #5280 .
## Summary
- ensure the TypeScript SDK sets CODEX_INTERNAL_ORIGINATOR_OVERRIDE to
codex_sdk_ts when spawning the Codex CLI
- extend the responses proxy test helper to capture request headers for
assertions
- add coverage that verifies Codex threads launched from the TypeScript
SDK send the codex_sdk_ts originator header
## Testing
- Not Run (not requested)
------
https://chatgpt.com/codex/tasks/task_i_68e561b125248320a487f129093d16e7
# External (non-OpenAI) Pull Request Requirements
Before opening this Pull Request, please read the dedicated
"Contributing" markdown file or your PR may be closed:
https://github.com/openai/codex/blob/main/docs/contributing.md
If your PR conforms to our contribution guidelines, replace this text
with a detailed and high quality description of your changes.
## Summary
- expand the TypeScript SDK README with streaming, architecture, and API
docs
- refresh quick start examples and clarify thread management options
## Testing
- Not Run (docs only)
---------
Co-authored-by: pakrym-oai <pakrym@openai.com>
There was a bit of copypasta I put up with when were publishing two
packages to npm, but now that it's three, I created some more scripts to
consolidate things.
With this change, I ran:
```shell
./scripts/stage_npm_packages.py --release-version 0.43.0-alpha.8 --package codex --package codex-responses-api-proxy --package codex-sdk
```
Indeed when it finished, I ended up with:
```shell
$ tree dist
dist
└── npm
├── codex-npm-0.43.0-alpha.8.tgz
├── codex-responses-api-proxy-npm-0.43.0-alpha.8.tgz
└── codex-sdk-npm-0.43.0-alpha.8.tgz
$ tar tzvf dist/npm/codex-sdk-npm-0.43.0-alpha.8.tgz
-rwxr-xr-x 0 0 0 25476720 Oct 26 1985 package/vendor/aarch64-apple-darwin/codex/codex
-rwxr-xr-x 0 0 0 29871400 Oct 26 1985 package/vendor/aarch64-unknown-linux-musl/codex/codex
-rwxr-xr-x 0 0 0 28368096 Oct 26 1985 package/vendor/x86_64-apple-darwin/codex/codex
-rwxr-xr-x 0 0 0 36029472 Oct 26 1985 package/vendor/x86_64-unknown-linux-musl/codex/codex
-rw-r--r-- 0 0 0 10926 Oct 26 1985 package/LICENSE
-rw-r--r-- 0 0 0 30187520 Oct 26 1985 package/vendor/aarch64-pc-windows-msvc/codex/codex.exe
-rw-r--r-- 0 0 0 35277824 Oct 26 1985 package/vendor/x86_64-pc-windows-msvc/codex/codex.exe
-rw-r--r-- 0 0 0 4842 Oct 26 1985 package/dist/index.js
-rw-r--r-- 0 0 0 1347 Oct 26 1985 package/package.json
-rw-r--r-- 0 0 0 9867 Oct 26 1985 package/dist/index.js.map
-rw-r--r-- 0 0 0 12 Oct 26 1985 package/README.md
-rw-r--r-- 0 0 0 4287 Oct 26 1985 package/dist/index.d.ts
```
