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Does UserPromptPart that has list of contents just appends the list as a single string without any whitespaces?

questionFurther information is requestedFurther information is requested

Status: Open.

#4394 In pydantic/pydantic-ai;

· SuperMasterBlasterLaser opened on Feb 21, 2026

Support CachePoint for OpenRouter models (Anthropic/Gemini prompt caching)

Status: Open.

#4392 In pydantic/pydantic-ai;

· Adversarian opened on Feb 21, 2026

Vercel AI Elements build_run_input failing on deferred tool approval/denial.

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vercel-ai

Status: Open.

#4387 In pydantic/pydantic-ai;

· dmmihov opened on Feb 20, 2026

<code>@agent.output_validator</code> receives inconsistent <code>ctx.retry</code> depending on text vs tool output path

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output

Status: Open.

#4385 In pydantic/pydantic-ai;

· Baniskos opened on Feb 20, 2026

Incompatibility with cohere &gt;=5.20

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Status: Open.

#4383 In pydantic/pydantic-ai;

· DarthJuri opened on Feb 20, 2026

Bedrock prompt caching is not working

bedrock

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Status: Open.

#4381 In pydantic/pydantic-ai;

· LokeshEka opened on Feb 20, 2026

Feature request: safe tool-payload truncation helper preserving pairing invariants

Status: Open.

#4379 In pydantic/pydantic-ai;

· drukpa1455 opened on Feb 20, 2026

Feature request: structured context overflow event payload contract

Status: Open.

#4378 In pydantic/pydantic-ai;

· drukpa1455 opened on Feb 20, 2026

Builtin Tools Human in the loop approval

questionFurther information is requestedFurther information is requested

Status: Open.

#4376 In pydantic/pydantic-ai;

· jblainmks opened on Feb 20, 2026

[Code for bug fix attached] Fix a bug in Graph question where a break causes graph to prematurely stop

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Status: Open.

#4374 In pydantic/pydantic-ai;

· arundobriyal opened on Feb 19, 2026

OpenRouterModel streaming fails OpenRouterChunkChoice.native_finish_reason is required

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Status: Open.

#4370 In pydantic/pydantic-ai;

· majdalsado opened on Feb 19, 2026

Bedrock anthropic models incorrectly marked as supporting json schema output

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Status: Open.

#4368 In pydantic/pydantic-ai;

· vimota opened on Feb 19, 2026