Deliver the unified FC contribution toolkit

Acceptance tracker for the FC contribution toolkit. **#4394 owns the PR map and merge order.** Existing agents conduct reviews; the CLI owns deterministic operations and retained evidence.

| Delivery | PR |
| --- | --- |
| CLI, review setup, packaging and opt-in Actions preparation | #5386; includes former #5356 |
| Exact proof workspaces and verification | #5387 |
| Archival, designated publisher and site evidence | #5388; display acceptance is #5377 |

## Fork qualification — 11 September 2026

[Qualification record](https://github.com/williamjblair/formal-conjectures/blob/e4dd405fc6803eb744922b3e527917e2cbd619d1/toolkit/qualification/rc3-final.md) · [Pilot packet](https://github.com/williamjblair/formal-conjectures/blob/codex/fc-toolkit-integration/toolkit/qualification/rc3-pilot.md)

- [x] **Review:** eligible PR preparation, independent Docker build, bounded sources, existing-agent rereview, validated report and historical inspection. Branch/index/files are preserved; earlier incompatible-toolchain attempts remain incomplete.
- [x] **Human pilot:** William approved the five-case packet qualitatively on 11 September. Two coverage gaps remain. No per-case scores, missed-issue counts, effort estimates or broad accuracy claim.
- [x] **Publication:** live designated posting, duplicate archival/request reuse, explicit cancellation, pending displacement, invalid archive/retry and changed-head historical receipt. Deterministic tests also cover concurrent archival, stale ordering and upload failures. No supported direct local comment writes.
- [x] **Proof:** fresh macOS initialization, explicit public workspace commit/push, pinned Linux success/rejection/error. Real controls cover unfinished proofs, imported assumptions, changed targets/executors, killed subprocess, missing results, external writes, symlinks and AF_UNIX. Errors retain unevaluated policy.
- [x] **Final distribution:** [RC3](https://github.com/williamjblair/formal-conjectures/releases/tag/toolkit-v0.2.0rc3) published from `61e2f0e31713d0209ff35ca20cdf63ab11eb6ef3`. [Release qualification 34585786052](https://github.com/williamjblair/formal-conjectures/actions/runs/34585786052) passed on macOS/Linux, including live fork statements/provenance. Published checksums, clean trial/install, RC2-to-RC3 upgrade, release examples and uninstall passed.
- [x] **Final fork browsing:** full deployment and browser/CLI checks passed at `eee8f2ec`; the published catalog and manifest match CI bytes. Fresh desktop/mobile layouts, a published-wheel browsing trial and website-only preview reuse also passed. #5377 records the remaining public handoff gates.
- [ ] **Public first use:** default browsing and production reader handoff require #5375/#5388 acceptance and deployment. Explicit fork browsing is separate.

## Limits and remaining dependencies

Generator #7 and Comparator #87 remain under upstream review. Current qualification applies to the exact fork pins in the record; rerun affected checks after adopting accepted revisions. Export success is not proof verification or downstream catalog admission.

RC2 remains historical. RC3 stays provisional until production browsing and #5377 handoff pass. Harbor's full separate-image trial is an experimental follow-up, not a core release gate. Earlier operator comments and unsuccessful attempts remain readable.

No paid model calls, upstream merges or upstream automation activation. Keep this tracker open until the public acceptance conditions pass; keep the four consolidated delivery PRs as drafts while prerequisites are pending.

Start with the qualification records linked in the issue and the dependency issues #5375, #5377, and #5388. Review the four delivery PRs and their stated acceptance boundaries; this tracker is done only when production browsing and the public first-use handoff pass, while the consolidated PRs can leave draft status.

Written by the indexing model from the issue text.