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* fix(capabilities): report the per-request context with split KV slots With parallel slots and kv_unified:false, llama.cpp gives each slot n_ctx/n_parallel, padded up to a multiple of 256. /models/capabilities still reported the full n_ctx. A client that budgets a request against context_size then overflows at a fraction of it. EffectiveRequestContextSize returns the per-slot size in that case and the full context otherwise. With the unified KV cache, the grpc-server default, one request may use all of n_ctx. The capabilities endpoint and the router's prompt trimmer now use it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix(openai): return an HTTP error when a stream fails before any chunk A streamed chat request set the SSE headers, then waited for the backend. When the backend failed before the first token, LocalAI sent a 200 with a `data: {"error":...}` chunk and [DONE]. Clients that do not parse error chunks saw an empty reply. cogito's LocalAI client was one of them: nib users got "streaming decision produced no content" instead of the context overflow that caused it. Nothing has been written at that point, so the handler now returns the error as a normal HTTP response. A failure after the first chunk keeps the in-stream error chunk. A prompt that exceeds the context is now a 400 on both paths, as in the OpenAI API and llama-server, and no longer a 500. The message is kept whole, because clients read the token counts from it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * test(e2e): check the error from closing the response body golangci-lint's errcheck flags the unchecked resp.Body.Close in the new pre-stream error helper. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Ettore Di Giacinto <mudler@localai.io> --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Co-authored-by: Ettore Di Giacinto <mudler@localai.io> Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>