feat(cache): add TTL support to CachePoint for prompt caching#1660
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kpx-dev wants to merge 5 commits intostrands-agents:mainfrom
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feat(cache): add TTL support to CachePoint for prompt caching#1660kpx-dev wants to merge 5 commits intostrands-agents:mainfrom
kpx-dev wants to merge 5 commits intostrands-agents:mainfrom
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Add optional ttl field to CachePoint TypedDict to support AWS Bedrock's cache TTL configuration. The field accepts "5m" or "1h" values as specified in the Bedrock API. Updated BedrockModel to preserve ttl field when formatting cache point content blocks. Includes tests for TTL preservation and backward compatibility. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
mkmeral
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Codecov Report✅ All modified and coverable lines are covered by tests. 📢 Thoughts on this report? Let us know! |
zastrowm
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February 17, 2026 18:09
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FYI this PR fails label size: https://github.com/strands-agents/sdk-python/actions/runs/22110060966 . Not sure if CI needs update or label input needs update |
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One last nit (imports) - looks good
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I'll approve. I want to try following up with strands command for nits, let's see how that works. the only nit is the import in the test
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Description
Add optional ttl field to CachePoint TypedDict to support AWS Bedrock's cache TTL configuration. The field accepts "5m" or "1h" values as specified in the Bedrock API. Updated BedrockModel to preserve ttl field when formatting cache point content blocks. Includes tests for TTL preservation and backward compatibility.
Doc shows API supports ttl option now:
https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_CachePointBlock.html
launch announcement:
https://aws.amazon.com/about-aws/whats-new/2026/01/amazon-bedrock-one-hour-duration-prompt-caching/
more details:
https://docs.aws.amazon.com/bedrock/latest/userguide/prompt-caching.html
Related Issues
#1243
Documentation PR
Type of Change
New feature
Testing
How have you tested the change? Verify that the changes do not break functionality or introduce warnings in consuming repositories: agents-docs, agents-tools, agents-cli
hatch run prepareChecklist
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