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The Node OTLP exporter streams with Transfer-Encoding: chunked and sends no Content-Length. The Receiver read Content-Length only, so every Node export came back 400 with zero spans; two TH-8103 children had to put a de-chunking relay in front of it. Receiver now accepts both framings. It also records one entry per accepted export (path, lower-cased headers, flattened resource attributes) via requests(), so a contract test can assert X-Api-Key/X-Secret-Key and project_name through the shared harness instead of a private recorder. Verified: 6 harness tests pass, and the TanStack example's real Node exporter delivered 4 chunked exports (4 spans, collector path, both auth headers, project_name/project_type) with no relay. Refs: TH-8339, TH-8103
This was referenced Oct 4, 2026
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This was referenced Oct 6, 2026
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Summary
python/tests/harness/, providing the four functions the TH-8103 architecture requires:dev(fabaf0a8).devis behindmain(54421a67). That rebase is a separate PR and is not part of this one.Spec: https://github.com/future-agi/company-brain/pull/62 (commit
b2463134).Update at
3eaadc8: chunked bodies and request metadata@opentelemetry/otlp-exporter-base) sendsTransfer-Encoding: chunkedwith noContent-Length. The receiver read zero bytes and returned 400, so TypeScript children exported nothing to the harness._read_bodynow decodes both chunked andContent-Lengthbodies.Receiver.requests().clear()resets both stores. Children assert the collector contract against this record:/tracer/v1/traces,X-Api-Key/X-Secret-Key,project_name/project_type=observe. Per-package relays are no longer needed.test_receiver_accepts_the_collector_pathandtest_receiver_decodes_a_chunked_bodyboth failed before the fix.Used by #209 (Claude Agent SDK TS), #210 (AG2), #211 (AG2 Classic) and #212 (TanStack AI).
Tests
That run was against head
3eaadc8on 2026-10-04.--noconftestis required becausepython/tests/conftest.pyauto-importsfi_instrumentation, and the harness does not use that fixture.Video demo
Not applicable. This PR adds a test utility with no user-visible behavior. The narrated demo belongs to the integration PRs that use the harness (#209–#212).