LeftX 2e5930e355 feat: add fallback_models support for automatic model failover ...

When the primary model fails (finish_reason="error" after exhausting
provider-level retries), automatically try each model in the configured
fallback_models list. Supports cross-provider fallback via a cached
provider_factory that resolves the correct provider for each model string.

Config:
  agents.defaults.fallback_models: ["model-b", "provider/model-c"]

Changes:
- AgentDefaults: add fallback_models field
- AgentRunSpec: add fallback_models field
- AgentRunner: add provider_factory, _call_provider, _resolve_fallback_provider
- AgentLoop: accept and forward fallback_models + provider_factory
- nanobot.py: extract _make_provider_for_model, add _make_provider_factory
- cli/commands.py: add _make_cli_provider_factory, wire all AgentLoop sites
- tests/agent/test_runner_fallback.py: 8 test cases covering primary success,
  single/multi fallback, cross-provider, no-factory reuse, caching

Made-with: Cursor

2026-05-08 20:16:06 +08:00

..

agent

feat: add fallback_models support for automatic model failover

2026-05-08 20:16:06 +08:00

channels

fix(weixin): distinguish stale session from rate limit on ret=-2

2026-05-08 09:41:12 +08:00

cli

feat(cli): support github-copilot in provider logout

2026-05-04 12:10:06 +08:00

command

fix(commands): intercept non-priority commands during active turn

2026-04-21 21:50:37 +08:00

config

feat(config): add model preset support for runtime model switching

2026-05-08 20:16:06 +08:00

cron

test(cron): avoid Windows timer race

2026-05-06 00:43:00 +08:00

heartbeat

fix(heartbeat): prevent internal reasoning leaks and finalization fallback in delivery

2026-04-27 18:14:13 +08:00

providers

fix(transcription): address review nits on PR #3253

2026-05-06 15:52:29 +08:00

security

fix(security): add ssrfWhitelist config to unblock Tailscale/CGNAT (#2669)

2026-04-04 19:43:18 +08:00

session

fix: handle Windows PermissionError on directory fsync

2026-04-22 13:19:53 +08:00

skills

feat(skills): add create-instance built-in skill

2026-04-27 10:33:54 +08:00

tools

refactor(logging): preserve tracebacks and add channel context

2026-05-06 21:17:45 +08:00

utils

fix(runner): soft workspace boundary + per-target throttle (#3493 #3599 #3605)

2026-05-04 01:18:39 +08:00

test_api_attachment.py

fix: two bugs in document extraction pipeline

2026-04-14 13:15:04 +00:00

test_api_stream.py

Fix API stream lifecycle for tool-backed requests

2026-05-01 19:42:52 +08:00

test_build_status.py

fix(status): correct context percentage calculation and sync consolidator

2026-04-16 20:30:39 +08:00

test_context_documents.py

fix: two bugs in document extraction pipeline

2026-04-14 13:15:04 +00:00

test_docker.sh

docs: add core agent line count script and update README with real-time stats

2026-02-06 07:28:39 +00:00

test_document_parsing.py

fix(utils): recurse into PPTX groups and tables when extracting text (#3250)

2026-04-18 12:30:42 +08:00

test_msteams.py

refactor(logging): preserve tracebacks and add channel context

2026-05-06 21:17:45 +08:00

test_nanobot_facade.py

fix(sdk): populate RunResult.tools_used and RunResult.messages

2026-05-05 23:23:29 +08:00

test_openai_api.py

feat(api): add SSE streaming for /v1/chat/completions Wire up the existing on_stream/on_stream_end callbacks from process_direct() to emit OpenAI-compatible SSE chunks when stream=true. Non-streaming path is untouched.

2026-04-17 01:54:49 +08:00

test_package_version.py

fix(version): fall back to pyproject in source checkouts

2026-04-08 23:47:36 +08:00

test_tool_contextvars.py

refactor(agent): simplify subagent concurrency with rejection over semaphore

2026-05-05 22:22:04 +08:00

test_truncate_text_shadowing.py

fix(agent): avoid truncate_text name shadowing

2026-04-10 17:36:31 +08:00