Bound pending SSE decoder state

[tim-smart]

Summary

• bound combined pending SSE line and event data state with a configurable 10 MiB default
• surface overflow as a typed SseError across low-level SSE stream contracts
• map provider stream overflows to AiError.InvalidOutputError

Testing

• pnpm lint-fix
• pnpm check
• pnpm --filter effect test --run test/unstable/encoding/Sse.test.ts
• pnpm --filter @effect/openapi-generator test --run test/OpenApiGenerator.test.ts
• pnpm test-types HttpApiClient.tst.ts
• targeted Anthropic, OpenAI, OpenAI-compatible, and OpenRouter client tests

Closes EFF-218

[changeset-bot]

🦋 Changeset detected

Latest commit: 5e5d909

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

This PR includes changesets to release 29 packages

Name	Type
effect	Patch
@effect/ai-anthropic	Patch
@effect/ai-openai	Patch
@effect/ai-openai-compat	Patch
@effect/ai-openrouter	Patch
@effect/openapi-generator	Patch
@effect/opentelemetry	Patch
@effect/platform-browser	Patch
@effect/platform-bun	Patch
@effect/platform-deno	Patch
@effect/platform-node-shared	Patch
@effect/platform-node	Patch
@effect/vitest	Patch
@effect/atom-react	Patch
@effect/atom-solid	Patch
@effect/atom-vue	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/docgen	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	6.63 KB	6.63 KB	0.00 KB (0.00%)
batching.ts	9.42 KB	9.42 KB	0.00 KB (0.00%)
brand.ts	6.31 KB	6.31 KB	0.00 KB (0.00%)
cache.ts	10.12 KB	10.12 KB	0.00 KB (0.00%)
config.ts	19.90 KB	19.90 KB	0.00 KB (0.00%)
differ.ts	20.03 KB	20.03 KB	0.00 KB (0.00%)
http-client.ts	20.94 KB	20.94 KB	0.00 KB (0.00%)
logger.ts	10.28 KB	10.28 KB	0.00 KB (0.00%)
metric.ts	8.55 KB	8.55 KB	0.00 KB (0.00%)
optic.ts	7.33 KB	7.33 KB	0.00 KB (0.00%)
pubsub.ts	14.26 KB	14.26 KB	0.00 KB (0.00%)
queue.ts	11.09 KB	11.09 KB	0.00 KB (0.00%)
schedule.ts	10.27 KB	10.27 KB	0.00 KB (0.00%)
schema-class.ts	18.86 KB	18.86 KB	0.00 KB (0.00%)
schema-fromJsonSchemaDocument.ts	28.78 KB	28.78 KB	0.00 KB (0.00%)
schema-representation-roundtrip.ts	25.09 KB	25.09 KB	0.00 KB (0.00%)
schema-string-transformation.ts	12.95 KB	12.95 KB	0.00 KB (0.00%)
schema-string.ts	10.65 KB	10.65 KB	0.00 KB (0.00%)
schema-template-literal.ts	14.85 KB	14.85 KB	0.00 KB (0.00%)
schema-toArbitraryLazy.ts	21.66 KB	21.66 KB	0.00 KB (0.00%)
schema-toCodeDocument.ts	24.10 KB	24.10 KB	0.00 KB (0.00%)
schema-toCodecJson.ts	19.00 KB	19.00 KB	0.00 KB (0.00%)
schema-toEquivalence.ts	18.73 KB	18.73 KB	0.00 KB (0.00%)
schema-toFormatter.ts	18.59 KB	18.59 KB	0.00 KB (0.00%)
schema-toJsonSchemaDocument.ts	22.23 KB	22.23 KB	0.00 KB (0.00%)
schema-toRepresentation.ts	19.27 KB	19.27 KB	0.00 KB (0.00%)
schema.ts	18.12 KB	18.12 KB	0.00 KB (0.00%)
stm.ts	12.05 KB	12.05 KB	0.00 KB (0.00%)
stream.ts	9.37 KB	9.37 KB	0.00 KB (0.00%)

[pullfrog]

✅ No new issues found.

Reviewed changes — bound pending SSE decoder state with a configurable maximum event size, surfaced as a typed SseError across all channel and client contracts.

• SseError type and size enforcement — new Data.TaggedError with EventTooLarge reason; Parser.feed() returns SseError | undefined; decode/decodeSchema/decodeDataSchema accept optional DecodeOptions with configurable maxEventSize (default 10 MiB).
• Provider client wiring — mapSseError helper added to each AI provider's internal/errors.ts, mapping SseError to AiError.InvalidOutputError; Stream.catchTags handlers hook into each client's stream pipeline.
• Generated code and type-level propagation — OpenAI/OpenRouter Generated.ts interfaces, OpenAPI generator templates, HttpApiClient SuccessType, and type tests all carry Sse.SseError in their SSE error channels.
• Tests — four new Sse.test.ts cases: unterminated line overflow, accumulated data overflow, borderline pass (just under limit), and cross-chunk event reconstruction.

  ^{｜ View workflow run ｜ Using DeepSeek Pro (free via Pullfrog for OSS) (Kimi K2 not used — the program covers this model; add its provider key to run your pick) ｜ 𝕏}

[pullfrog]

✅ No new issues found.

Reviewed changes — extracted EventTooLarge as a standalone tagged error reason class, restructured SseError to wrap a SseErrorReason union.

• EventTooLarge extracted — Data.TaggedError("EventTooLarge") now holds maxEventSize and its own message; this makes failure reasons independently matchable via instanceOf and allows SseErrorReason to grow with future variants.
• SseError delegates to reason — reason field changed from a string literal to SseErrorReason (union of EventTooLarge), and message delegates to this.reason.message. The maxEventSize field moved off SseError onto EventTooLarge.
• Tests updated — assertions switched from strictEqual(error.reason, "EventTooLarge") + strictEqual(error.maxEventSize, N) to instanceOf(error.reason, EventTooLarge) + strictEqual(error.reason.maxEventSize, N).

  ^{｜ View workflow run ｜ Using DeepSeek Pro (free via Pullfrog for OSS) (Kimi K2 not used — the program covers this model; add its provider key to run your pick) ｜ 𝕏}