ai/openai: Minimal patch to add cache breakpoint support for openai-gpt-5.6+ prompts

[hsyntax]

Summary

GPT 5.6 and later models add support for explicit cache breakpoints.

This PR attempts to add a minimal patch to add support for cache breakpoints. Source reference : here

Existing work

These issues and PR's already existed related to the topic. They seemed broader and unlikely to be merged and there hasn't been any progress on them in a while.

I made this patch to serve as a minimal focused change since this is currently a blocker for me and my team.

Issues

• Expose OpenAI Responses safety and prompt-cache request options through OpenAiLanguageModel.Config #6830 — expose OpenAI Responses safety and prompt-cache request options
• Support OpenAI prompt_cache_breakpoint on Responses API input content #6831 — support prompt_cache_breakpoint on Responses API input content

Pull requests

• Expose OpenAI prompt cache request options #6832 — expose OpenAI prompt cache request options
• Add OpenAI prompt cache breakpoints #6833 — add OpenAI prompt cache breakpoints
• chore: update AI codegen generated files #6678 — update AI codegen generated files with related generated-schema support

This PR was raised with support from Codex/GPT 5.6-xhigh

[changeset-bot]

🦋 Changeset detected

Latest commit: 628726a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 30 packages

Name	Type
@effect/ai-openai	Patch
effect	Patch
@effect/ai-anthropic	Patch
@effect/ai-openai-compat	Patch
@effect/ai-openrouter	Patch
@effect/atom-react	Patch
@effect/atom-solid	Patch
@effect/atom-vue	Patch
@effect/docgen	Patch
@effect/doctest	Patch
@effect/openapi-generator	Patch
@effect/opentelemetry	Patch
@effect/platform-browser	Patch
@effect/platform-bun	Patch
@effect/platform-deno	Patch
@effect/platform-node	Patch
@effect/platform-node-shared	Patch
@effect/sql-clickhouse	Patch
@effect/sql-d1	Patch
@effect/sql-libsql	Patch
@effect/sql-mssql	Patch
@effect/sql-mysql2	Patch
@effect/sql-pg	Patch
@effect/sql-pglite	Patch
@effect/sql-sqlite-bun	Patch
@effect/sql-sqlite-do	Patch
@effect/sql-sqlite-node	Patch
@effect/sql-sqlite-react-native	Patch
@effect/sql-sqlite-wasm	Patch
@effect/vitest	Patch

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[github-actions]

Bundle Size Analysis

Generated from PR build output; treat the content below as untrusted.

File Name	Current Size	Previous Size	Difference
basic.ts	6.96 KB	6.96 KB	0.00 KB (0.00%)
batching.ts	9.81 KB	9.81 KB	0.00 KB (0.00%)
brand.ts	6.55 KB	6.55 KB	0.00 KB (0.00%)
cache.ts	10.73 KB	10.73 KB	0.00 KB (0.00%)
config.ts	21.44 KB	21.44 KB	0.00 KB (0.00%)
differ.ts	20.27 KB	20.27 KB	0.00 KB (0.00%)
http-client.ts	21.74 KB	21.74 KB	0.00 KB (0.00%)
logger.ts	10.91 KB	10.91 KB	0.00 KB (0.00%)
metric.ts	8.95 KB	8.95 KB	0.00 KB (0.00%)
optic.ts	6.71 KB	6.71 KB	0.00 KB (0.00%)
pubsub.ts	15.09 KB	15.09 KB	0.00 KB (0.00%)
queue.ts	11.77 KB	11.77 KB	0.00 KB (0.00%)
schedule.ts	10.84 KB	10.84 KB	0.00 KB (0.00%)
schema-class.ts	20.02 KB	20.02 KB	0.00 KB (0.00%)
schema-fromJsonSchemaDocument.ts	30.19 KB	30.19 KB	0.00 KB (0.00%)
schema-representation-roundtrip.ts	26.17 KB	26.17 KB	0.00 KB (0.00%)
schema-string-transformation.ts	13.65 KB	13.65 KB	0.00 KB (0.00%)
schema-string.ts	11.15 KB	11.15 KB	0.00 KB (0.00%)
schema-template-literal.ts	15.45 KB	15.45 KB	0.00 KB (0.00%)
schema-toArbitrary.ts	22.00 KB	22.00 KB	0.00 KB (0.00%)
schema-toCodeDocument.ts	24.45 KB	24.45 KB	0.00 KB (0.00%)
schema-toCodecJson.ts	19.23 KB	19.23 KB	0.00 KB (0.00%)
schema-toEquivalence.ts	19.06 KB	19.06 KB	0.00 KB (0.00%)
schema-toFormatter.ts	18.92 KB	18.92 KB	0.00 KB (0.00%)
schema-toJsonSchemaDocument.ts	23.32 KB	23.32 KB	0.00 KB (0.00%)
schema-toRepresentation.ts	19.54 KB	19.54 KB	0.00 KB (0.00%)
schema.ts	19.25 KB	19.25 KB	0.00 KB (0.00%)
stm.ts	12.72 KB	12.72 KB	0.00 KB (0.00%)
stream.ts	9.78 KB	9.78 KB	0.00 KB (0.00%)