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@github-actions github-actions released this 20 Apr 16:17
· 1512 commits to main since this release
v5.4.0
9e8a9aa
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Minor Changes

  • e6abfdd: Ship five downstream-ergonomics fixes surfaced while porting a training agent onto 5.3. One public-type change (breaking for pre-release consumers only — the type never reached a stable release), four additive.

    BREAKING (pre-release only) — createAdcpServer() returns AdcpServer instead of SDK McpServer. Re-exporting the SDK's McpServer type forced consumers through a specific module resolution path. A TypeScript ESM consumer importing @adcp/client (CJS) and separately importing @modelcontextprotocol/sdk (ESM) got two structurally-identical but distinct McpServer types — the SDK's private _serverInfo field breaks assignment compatibility between them. Owning the type on our side eliminates the hazard for every consumer. AdcpServer exposes connect, close, and the new dispatchTestRequest. Tool registration continues to flow through createAdcpServer's domain-grouped handler config. For seller extensions outside AdcpToolMap, pass a customTools map in the same config — no getSdkServer() escape hatch required. serve() accepts both AdcpServer and raw McpServer (for createTaskCapableServer users). See docs/migration-5.3-to-5.4.md for the verbatim diffs.

    AdcpServer.dispatchTestRequest({ method, params }) — encapsulated test-only dispatch so downstream harnesses stop writing (server as any)._requestHandlers.get(...). The 'tools/call' overload returns a typed CallToolResult; the generic fallback returns unknown.

    McpToolResponse.structuredContent is now optional. Error responses no longer need to fabricate an empty structuredContent to satisfy the type. All built-in success builders still populate it.

    SingleAgentClient.validateRequest drops schema.strict(). The storyboard runner's applyBrandInvariant injects top-level brand/account onto every outgoing request for run-scoped tenancy. Tools whose schema declares neither (list_creative_formats, get_signals, activate_signal, sync_creatives) had strict() rejecting the injection client-side BEFORE adaptRequestForServerVersion could strip by schema. Non-strict parse lets the injection flow to the adapter. Required-field and shape violations still reject. Typo detection on unknown top-level keys now happens server-side.

    Storyboard runner request_signing.transport: 'raw' | 'mcp'. Plumbs the existing grader option through the storyboard runner so MCP-only agents can pass the signed-requests specialism's vectors — each vector body is wrapped in a JSON-RPC tools/call envelope and posted to the /mcp mount instead of per-operation HTTP endpoints. Matches the adcp grade request-signing --transport mcp CLI flag.

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