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feat: add Claude Code OAuth and Codex CLI as LLM providers (#1166)

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* feat: add Claude Code OAuth and Codex CLI providers

Port of bytedance/deer-flow#1136 from @solanian's feat/cli-oauth-providers branch.\n\nCarries the feature forward on top of current main without the original CLA-blocked commit metadata, while preserving attribution in the commit message for review.

* fix: harden CLI credential loading

Align Codex auth loading with the current ~/.codex/auth.json shape, make Docker credential mounts directory-based to avoid broken file binds on hosts without exported credential files, and add focused loader tests.

* refactor: tighten codex auth typing

Replace the temporary Any return type in CodexChatModel._load_codex_auth with the concrete CodexCliCredential type after the credential loader was stabilized.

* fix: load Claude Code OAuth from Keychain

Match Claude Code's macOS storage strategy more closely by checking the Keychain-backed credentials store before falling back to ~/.claude/.credentials.json. Keep explicit file overrides and add focused tests for the Keychain path.

* fix: require explicit Claude OAuth handoff

* style: format thread hooks reasoning request

* docs: document CLI-backed auth providers

* fix: address provider review feedback

* fix: harden provider edge cases

* Fix deferred tools, Codex message normalization, and local sandbox paths

* chore: narrow PR scope to OAuth providers

* chore: remove unrelated frontend changes

* chore: reapply OAuth branch frontend scope cleanup

* fix: preserve upload guards with reasoning effort wiring

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
This commit is contained in:
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2026-03-22 07:39:50 -07:00
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backend/docs/CONFIGURATION.md
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@@ -36,8 +36,35 @@ models:
- OpenAI (`langchain_openai:ChatOpenAI`)
- Anthropic (`langchain_anthropic:ChatAnthropic`)
- DeepSeek (`langchain_deepseek:ChatDeepSeek`)
- Claude Code OAuth (`deerflow.models.claude_provider:ClaudeChatModel`)
- Codex CLI (`deerflow.models.openai_codex_provider:CodexChatModel`)
- Any LangChain-compatible provider
CLI-backed provider examples:
```yaml
models:
- name: gpt-5.4
display_name: GPT-5.4 (Codex CLI)
use: deerflow.models.openai_codex_provider:CodexChatModel
model: gpt-5.4
supports_thinking: true
supports_reasoning_effort: true
- name: claude-sonnet-4.6
display_name: Claude Sonnet 4.6 (Claude Code OAuth)
use: deerflow.models.claude_provider:ClaudeChatModel
model: claude-sonnet-4-6
max_tokens: 4096
supports_thinking: true
```
**Auth behavior for CLI-backed providers**:
- `CodexChatModel` loads Codex CLI auth from `~/.codex/auth.json`
- The Codex Responses endpoint currently rejects `max_tokens` and `max_output_tokens`, so `CodexChatModel` does not expose a request-level token cap
- `ClaudeChatModel` accepts `CLAUDE_CODE_OAUTH_TOKEN`, `ANTHROPIC_AUTH_TOKEN`, `CLAUDE_CODE_OAUTH_TOKEN_FILE_DESCRIPTOR`, `CLAUDE_CODE_CREDENTIALS_PATH`, or plaintext `~/.claude/.credentials.json`
- On macOS, DeerFlow does not probe Keychain automatically. Use `scripts/export_claude_code_oauth.py` to export Claude Code auth explicitly when needed
To use OpenAI's `/v1/responses` endpoint with LangChain, keep using `langchain_openai:ChatOpenAI` and set:
```yaml