0.1.8 Beta5: Run the full maintained K2.7 Code Provider regression #276

Parent

#351 (part of #248)

Outcome

Run the full maintained-Provider regression for the Ollama Cloud K2.7 Code configuration against every generic Responses capability shipped in Beta2 through Beta4.

This is independent maintenance evidence for a bundled Provider configuration. It does not inherit GLM results, select production behavior, or restrict user-configured endpoints.

Required coverage

• Beta2: exact route identity; native/adapt/omit/required-unavailable behavior; standard functions; namespace/custom structural mapping; hosted-tool omission; V1/V2 isolation; no cross-Provider proxy.
• Beta3: complete client-executed tool_search and reversible Code Mode workflows.
• Beta4: complete client-owned Collaboration V2 lifecycle and user-owned agent configuration safety.
• Retained Beta1 continuation, context-window, visibility, catalog ownership, and identity regressions.

Acceptance criteria

• Streaming/non-streaming text, multi-turn history, standard function calls/results/replay, and stable terminal/error behavior complete through the real CLI.
• Every Beta2 structural disposition relevant to the route is exercised.
• Client tool_search, Code Mode, and Collaboration V2 complete through the same generic production implementation.
• Optional unsupported hosted tools are absent; a required unavailable hosted tool fails before sampling.
• Exact Provider/model identity remains unchanged across turns, reconnect, adaptation, and permitted retry.
• No request reaches Official/OpenAI or another Provider to execute a tool.
• K2.7 evidence is independent from GLM evidence.
• Failures distinguish upstream model behavior, maintained configuration, and generic CodexHub defects.
• A regression failure must not be fixed by adding a K2.7-specific tool codec or routing branch.
• Evidence is bounded and bound to exact candidate SHA, CLI version, Provider/model/protocol, and catalog identity.

Out of scope

• Chat Completions, which remains Beta6.
• Turning the regression result into a runtime model allowlist or public claim that only this model is supported.

Blocked by

• 0.1.8 Beta4 gate: Publish the runtime-derived generic Collaboration V2 candidate #284