BeamWeaver

0.1.7 - 2026-06-29

Added

• Added Agent per-call model_opts: overrides for invoke/3 and
  stream_events/3, so provider request options such as prompt_cache_key,
  x_grok_conv_id, and reasoning_effort can be passed through Agent calls
  without leaking internal runtime keys.
• Added provider-aware Agent prompt caching via prompt_caching true,
  prompt_caching scope: ..., version: ..., and
  BeamWeaver.Agent.Middleware.PromptCaching, with generated cache keys for
  OpenAI, xAI/Grok, Moonshot/Kimi, and Anthropic static-system-prompt cache
  control.
• Added BeamWeaver.PromptCache for stable cache-key construction across
  examples and application code.

Changed

• Prompt caching middleware now fills only missing provider cache options;
  explicit model-level or per-call options keep precedence.
• The prompt-caching example now exercises the Agent path instead of direct
  ChatModel.invoke/3.

Fixed

• xAI Responses Agent calls now receive both prompt_cache_key and
  x_grok_conv_id when prompt caching is enabled, while xAI Chat Completions
  receives the x-grok-conv-id routing header.
• Runtime-built agents, module agents, streams, and subgraph invocations now
  preserve per-call model options through the graph runtime.