[Fish (wxhking)]

Fixes #9965

Summary

The Mistral chat and embedding wrappers resolved MISTRAL_SERVER_URL (or the explicit server_url) before inspecting an injected mistralai.client.Mistral, then kept that ambient value in self.server_url / service_url(). Requests still went to the endpoint configured on the injected client, so service_url() and telemetry metadata disagreed with actual behavior: with MISTRAL_SERVER_URL=https://env.example and an SDK client built for https://client.example, service_url() reported env.example.

For an injected SDK client, the settings loader now receives no server_url input at all, and server_url is read off the client after construction — so service_url() always reports the endpoint the requests actually go to.

• owned-client construction keeps the existing precedence (explicit server_url → MISTRAL_SERVER_URL → SDK default)
• the API-key requirement stays keyed on whether a client / http_client is injected
• model resolution and http_client base-URL reporting are unchanged
• docstrings state the injected-client precedence

Evidence

• new tests/mistral/test_mistral_injected_client_endpoint.py: with MISTRAL_SERVER_URL=https://env.example, an SDK client built for https://client.example is reported by service_url() on both the chat and embedding wrappers; the no-client path still honors the env URL; an explicit server_url with an owned client still wins; an injected client requires no MISTRAL_API_KEY — 5 cases
• pytest tests/mistral — 178 passed, 16 skipped, no new failures
• ruff check / format clean on all three changed files

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[Copilot]

🟡 Changes recommended

Both Mistral clients still resolve credential and endpoint settings when SDK clients are injected, violating the requirement to bypass those settings.

1 open issue

• Skip credential and endpoint resolution for injected SDK clients · New

What changed in this PR

This PR addresses #9965 by aligning Mistral chat and embedding endpoint metadata with the injected SDK client, rather than ambient configuration.

Changes:

• Report injected SDK endpoints while preserving owned-client URL precedence.
• Document injected-client endpoint precedence.
• Add five regression tests covering endpoint reporting and injected-client credential requirements.

File	Description
python/​packages/​mistral/​tests/​mistral/​test_mistral_injected_client_endpoint.py	Adds endpoint-precedence and credential-requirement tests.
python/​packages/​mistral/​agent_framework_mistral/​_embedding_client.py	Reports the injected embedding client's endpoint and documents precedence.
python/​packages/​mistral/​agent_framework_mistral/​_chat_client.py	Reports the injected chat client's endpoint and documents precedence.

_{Review effort: Balanced}