* feat(providers): add Google Vertex AI provider
Adds Vertex AI provider profiles, routing, credential refresh plumbing, CLI support, docs, and regression coverage. Keeps the related NETLINK_ROUTE seccomp allowance needed by Vertex client tooling that calls getifaddrs.
* docs: add Vertex AI sandbox usage for Claude Code and OpenCode
Cover the full end-to-end setup for running Claude Code and OpenCode
inside an OpenShell sandbox via inference.local with a Vertex AI backend:
- google-vertex-ai.mdx: add 'Use from a Sandbox' section with tabbed
examples for Claude Code (--bare flag, no /v1 suffix) and OpenCode
(/v1 suffix required). Add providers_v2_enabled prerequisite and
--no-verify note for global region. Document policy proposals table
covering metadata.google.internal (always blocked), downloads.claude.ai,
and storage.googleapis.com.
- inference-routing.mdx: expand 'Use the Local Endpoint' section with
tabbed examples for Claude Code, OpenCode, Python OpenAI SDK, and
Python Anthropic SDK. Add notes explaining the /v1 path suffix
difference between clients.
- supported-agents.mdx: update Claude Code and OpenCode rows to mention
inference.local support and correct base URL requirements.
* fix: address vertex review findings
* test(sandbox): retry on spurious Ok in fork-exec ambiguity test
On arm64 under heavy CI load, the /proc fd scan in
find_socket_inode_owners can transiently miss the parent process's
socket fd entry, returning only the child as an owner. This causes
resolve_process_identity to return Ok (single owner, no ambiguity
check fires) instead of the expected ambiguous-ownership Err.
Extend the retry loop to also handle unexpected Ok results, mirroring
the existing retry for transient Err results. 10 retries at 50ms gives
a 500ms settling window, which is sufficient for procfs to stabilize
on loaded arm64 runners.
* fix: address vertex review regressions
* docs(router): clarify stream_response semantics for Vertex rawPredict routing
Document the three call sites of prepare_backend_request and their
stream_response values in a caller table:
- send_backend_request: false → :rawPredict (unary endpoint)
- send_backend_request_streaming: true → :streamRawPredict
- verify_backend_endpoint: explicitly false to probe the unary endpoint
Cross-reference the table from build_provider_url and
is_vertex_anthropic_rawpredict_route so the stream_response=true guard
in the suffix upgrade branch is understood in full context.
Also note that is_vertex_anthropic_rawpredict_route is a structural
predicate (model_in_path + anthropic_messages + :rawPredict suffix),
not a named-provider check, so any future provider with the same route
shape inherits the transforms automatically.
