research(track-a): classify writer vtable group

[blakinio]

Draft-only Track A P2 research dispatch from exact main@8fca1c3eee453d0d4ef8a47e0f15c9dbae491b45.

Hypothesis: classify 0x2f69e30 / RTTI 0x3080748 as a structurally emitted address point within the canonical TProtocolWriter vtable group and determine whether its exact type/method boundary narrows writer transformation/framing order.

This task explicitly does not duplicate queued final-socket run 31825417040, generic QIODevice enumeration, or superseded 0xb5b880 / disproven 0xb46bd0 models. It consumes only reviewed exact-build text artifacts and current canonical #299/#301 evidence.

Research output remains Draft-only. Promotion authority is coordinator PR #300. No proprietary client bytes, credentials or account state may be committed/uploaded.

[blakinio]

Research handoff complete for exact final Draft head 9329e338235b7f9997d74d4db5313f329662378b.

Validation: task-specific exact-head run 31884379539 / job 95011421555 = SUCCESS; final standard PR CI 31884381191, including CI / Required, = SUCCESS; changed paths remain confined to declared task roots; review threads = 0.

FACT: 0x2f69e30 is a distinct normal Itanium address point with offset-to-top=0, own typeinfo 0x3080748, first targets 0x7de7f0/0x7dfd60, and a separately allocated retained object receives this vptr. Typeinfo differs from canonical TProtocolWriter RTTI 0x3080728 and TIODeviceWriter RTTI 0x3080718.

DISPROVEN: the simple interpretation that 0x2f69e30 is merely a secondary/base address point of canonical TProtocolWriter based on adjacency.

INFERENCE: 0x7de7f0/0x7dfd60 are teardown-like from exact cleanup behavior.

UNKNOWN: semantic name/base relation for RTTI 0x3080748, first writer transform/framing boundary, gameplay framing order, final binary egress, and relationship of historical 0x3084c70/+0xd0 -> 0xb40630 family to the canonical writer branch.

Researcher proposal: ACCEPT_WITH_EDITS as bounded negative/type-structure evidence. P2 remains incomplete. Task is ready; ownership is released for independent coordinator review.

[blakinio]

Coordinator disposition for exact final Draft head 9329e338235b7f9997d74d4db5313f329662378b: ACCEPT_WITH_EDITS.

Independent review confirms final task-specific exact-head run 31884379539 / job 95011421555 = SUCCESS; final standard PR CI 31884381191, including CI / Required, = SUCCESS; changed paths are confined to declared task roots; review threads = 0; all three reviewed historical source artifacts are digest-fenced before parsing.

FACT — accepted bounded type structure: 0x2f69e30 is a normal Itanium-style address point with offset-to-top=0, distinct typeinfo 0x3080748, first targets 0x7de7f0/0x7dfd60, and a separately allocated retained object receives this vptr. Typeinfo differs from canonical TProtocolWriter RTTI 0x3080728 and TIODeviceWriter RTTI 0x3080718.

DISPROVEN — accepted: address adjacency is insufficient to treat 0x2f69e30 as merely a secondary/base address point of canonical TProtocolWriter; distinct typeinfo plus separate object provenance reject that collapse.

INFERENCE — accepted with label: 0x7de7f0/0x7dfd60 are teardown-like from exact vptr-install/cleanup behavior.

UNKNOWN — preserved: semantic name/base relation for RTTI 0x3080748; first writer transform/framing boundary; gameplay framing order; final binary egress; relationship of historical 0x3084c70/+0xd0 -> 0xb40630 family to the canonical writer branch. The accepted #301 retention relation remains valid; the intermediate object is now structurally typed but semantically unnamed.

This slice improves P2 structural truth but does not close P2. I will promote exact reviewed source blobs under coordinator-owned evidence, validate the coordinator head, and close #305 unmerged.

[blakinio]

Lifecycle closeout after coordinator promotion: exact source head 9329e338235b7f9997d74d4db5313f329662378b received ACCEPT_WITH_EDITS; exact reviewed source blobs are preserved under coordinator PR #300 at docs/agents/evidence/OTC-20260815-track-a-promotion-coordination/p2-writer-vtable-group/source-snapshot/; coordinator integration head 0ade6404c5b43f5fe468b8dd748846406d4c856e passed required CI run 31884644268. Closing this Draft unmerged so the accepted bounded type/provenance evidence has one promotion authority. P2 remains incomplete.