docs: reserve seam for complete capabilities

packages/web/web-search-exa/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/web/web-search-exa/README.md
-README.md: c24f952eede90aae6fa23eec976255cb99625c19
-README.zh.md: 58255a564601ae4d57f1916507a76a55cdbabf44
+README.md: 5b1212c1fb210a3aca7836875cc295fad87e7437
+README.zh.md: fc9afbe44dcb5dd55c7007a11b35048217143351

packages/web/web-search-exa/README.md

@@ -38,5 +38,5 @@ No direct invalidation; the named consumer owns any request-prefix changes.
 ## Known Limitations and Deferred Work
 
 - **A result with no non-blank highlight is dropped entirely** — no portable snippet to map, so fewer sources than the requested count can return.
-- **Only `searchType`/`numResults`/`highlightsPerResult` are exposed** — Exa's other controls (livecrawl, category, domain/date filters, full-text contents) wait on provider-neutral seam fields ([seam Agent Note](../../../.agents/notes/implemented/architecture/2026-06-24-web-capability-seam.md)).
+- **Only `searchType`/`numResults`/`highlightsPerResult` are exposed** — Exa's other controls (livecrawl, category, domain/date filters, full-text contents) wait on provider-neutral Service Definition fields ([seam Agent Note](../../../.agents/notes/implemented/architecture/2026-06-24-web-capability-seam.md)).
 - **Abort classification is error-shape-based** — only a `DOMException` named `AbortError` maps to `WEB_ABORTED`; an abort carrying a custom reason (e.g. `dsh-timeout`'s `TimeoutReason`) surfaces as `WEB_PROVIDER_ERROR`.

packages/web/web-search-exa/README.zh.md

@@ -38,5 +38,5 @@ Exa 返回扁平 `results[]`，不返回生成答案，因此省略 `content`。
 ## 已知限制与暂缓事项
 
 - **没有非空白高亮摘要的结果会被整个丢弃**：没有可映射的可移植 snippet，因此返回源可能少于请求数量。
-- **只公开 `searchType`／`numResults`／`highlightsPerResult`**：Exa 的其他控制项（livecrawl、category、域名／日期过滤条件、全文内容）等待提供方无关 seam 字段（见 [seam Agent Note](../../../.agents/notes/implemented/architecture/2026-06-24-web-capability-seam.md)）。
+- **只公开 `searchType`／`numResults`／`highlightsPerResult`**：Exa 的其他控制项（livecrawl、category、域名／日期过滤条件、全文内容）等待提供方无关的 Service Definition 字段（见 [seam Agent Note](../../../.agents/notes/implemented/architecture/2026-06-24-web-capability-seam.md)）。
 - **按错误形状分类中止**：只有 `DOMException` 且名为 `AbortError` 时才映射为 `WEB_ABORTED`；携带自定义原因的中止（例如 `dsh-timeout` 的 `TimeoutReason`）会呈现为 `WEB_PROVIDER_ERROR`。

packages/web/web-search-exa/src/provider.ts

@@ -75,7 +75,7 @@ export function mapExaResponse(response: ExaSearchResponse): WebSearchResult {
   const sources = (response.results ?? [])
     .map(mapExaResult)
     .filter((source): source is WebSearchSource => source !== undefined)
-  // Exa returns no generated answer, so `content` is omitted. The seam owns the
+  // Exa returns no generated answer, so `content` is omitted. The web service owns the
   // final `maxResults` truncation, so this provider reports `truncated: false`.
   return { sources, truncated: false }
 }