Guarantees: A15, A16 after A13 (#661) and A14 (MongoDB)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
Payments, Guarantees, Several-instances: an error of unknown outcome reconciled, a replay past keyRetention never sent (#657, #658)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
Guarantees: the linearizability checker takes a renewal where the answers after it pin it (#660)
MongoDB, Guarantees (A14), Your-own-store, Changelog, Sidebar: the stores on MongoDB (#527)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
docs(#482): Running on PostgreSQL — install, wiring, migrations, one backend, connection limits, clock_timestamp, the proofs
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
docs(#682): a thread's latest checkpoint is the one written last; A13 restated
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
docs(#661): a child's end is read at the checkpoint its run wrote last; A13 in Guarantees
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
FinOps, Guarantees, Changelog: the budget's overrun bound, stated in full (#664)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
Payments: the gateway contract, every payment race (PS1–PS23) and ten gateways (#653)
New pages Payments (the notice, the contract in short, whether the guarantees hold on a gateway,
what stays the application's, how to wire a gateway, how to check your own call) and
Payment-scenarios (each race: wrong, mechanism, guarantee, assumptions, boundary, proof).
Payment-gateways: the capability table of ten gateways read 2026-11-01, the support rule, quotes
and links. Guarantees: A12, the retention a repeat must come within. Cross-links from
Several-instances and Guarantees-across-processes; a Payments group in the sidebar; Changelog.
Gaps found: #657, #658.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
Guarantees: an undo marked done never runs again (#607)
Guarantees-across-processes: every automatic undo marked done and skipped by whoever takes the
tree over — a failed join's too —, the one window left (between the undo action and its mark: at
least once, exactly once when fenced by its key), scenario 12b and its broken store. Guarantees:
P5 says once; the fault suite's row counts 23 scenarios and the undo matrix.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
Guarantees: the mutation row names the scope as it is — the fencing and SQLite shards, their counts, what is not mutated yet (#626, #633)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
Guarantees: the mutation counts of #619's final run (800, 786 killed, 5 timeouts, 9 ignored)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
Guarantees: the mutation row's counts after #619 — 9 ignored by 5 comments, each covering only equivalent mutants
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
Guarantees: each proof with its bounds (#625)
A3 no longer says a forward step never makes two holders; the explorer's
P2, depth and race list as they are; PostgreSQL's explorer on the test's
clock, database time proved by clock-authority and clock-skew; the mutation
row's scope and its 11 over-broad comments (#619, #626); P5 under A1 with
its proofs; the checker's fix (#617), the shrink's (#618) and the
collation's (#620).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Kh8JmysuhZyQRSpNyJdPg
Guarantees: the mutant count after #578
docs(#533): Guarantees — every guarantee, its assumptions and its proofs