* feat(bedrock): add inference profile discovery and region injection
Inference profiles (cross-region and application) work with ConverseStream
but require the SDK client region to match the profile region. Without
this, users get "The provided model identifier is invalid" errors when
using cross-region profiles like us.anthropic.claude-sonnet-4-6.
Changes:
1. Inference profile discovery (discovery.ts):
- Call ListInferenceProfiles alongside ListFoundationModels (parallel)
- Inference profiles INHERIT capabilities from their underlying
foundation model (modalities, reasoning, context window, cost)
- resolveBaseModelId() maps profile → foundation model:
"us.anthropic.claude-sonnet-4-6" → "anthropic.claude-sonnet-4-6"
Application ARNs → extract model ID from models[].modelArn
- Graceful degradation if IAM lacks bedrock:ListInferenceProfiles
- Provider filter applies to profiles via underlying model ARNs
2. Region injection (register.sync.runtime.ts):
- Extract region from provider baseUrl or bedrockDiscovery.region
- Pass through to pi-ai options.region in wrapStreamFn
- Ensures SDK client connects to correct regional endpoint
3. Inference profile model detection (anthropic-family-cache-semantics.ts):
- isAnthropicBedrockModel() now recognizes application inference
profile ARNs (arn:aws:bedrock:...:application-inference-profile/*)
4. Tests (discovery.test.ts):
- New: inference profile inheritance test (4 models: 1 foundation +
3 profiles, verifies capability inheritance, inactive filtering)
- New: graceful AccessDeniedException handling test
- Updated: all existing tests for dual-API discovery pattern
Fixes#55642
* fix(bedrock): preserve inference profile model lookup
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Co-authored-by: Vincent Koc <vincentkoc@ieee.org>
78fe96f2d4