---
id: architecture/oq-04-receive-pack
name: OQ-04 unblock — receive-pack walkthrough/POC arrives
status: completed
depends_on: []
scope: narrow
risk: trivial
impact: component
level: research
tags: [external-trigger, deferred-oq, resolved-early]
---

## Description

Tracker for OQ-04 (`deferred(unclear)`): receive-pack (push) design
validation. **Resolved early (2026-09-25, ADR-013)** — the investigation
was run in-session rather than waiting for scheduling: real `git push`
captures (git 2.43.0 over file://, git://, smart-http, plus raw stdio
requests into real `git receive-pack`) resolved the full push state
machine. OQ-04 is resolved by
`docs/architecture/decisions/013-receive-pack-state-machine.md`; captures
in `docs/research/push-captures.md`.

## Work

None by default. On trigger: set OQ-04 to `open` in
`docs/architecture/open-questions.md` and spawn the focused session that
works through the push state machine. (Triggered and completed in the
2026-09-25 session.)

## Verification

- OQ-04 status matches this task's state in
  `docs/architecture/open-questions.md` (resolved).

## Out of scope

- Actually implementing receive-pack (phase 3 implementation work).

## Summary

Resolved early via ADR-013: the walkthrough ran in-session; all seven
unknowns (advertisement set, shallow policy, thin-pack acceptance,
ingestion composition, CAS timing, status report, version/framing
surface) have capture-grounded decisions.