Every published page on this site ends with one sentence in the same place:
Checked on 11 August 2026 against the pinned ROOK source snapshot and the approved public claim set.That sentence is the site's whole evidence claim, and it is worth being exact about what it says.
What the date is
Checked on is the day a person re-read the product evidence and confirmed that the page's claims
still matched it. It is not the day the page was last edited, and it is not today's date. A page can
be edited for wording, structure or reading order long after its claims were last verified, and when
that happens the checked date deliberately stays where it is. The edit date is carried separately in
the page's machine-readable mirror as updated.
So a page whose checked date is older than its edit date is not a mistake. It means the words moved and the evidence behind them did not get re-read.
What "against" names
The phrase after against names the evidence that was read: a specific part of the product, not a
document you can open. Both products are unreleased and both sources are private, so the phrase is a
description rather than a link. Naming it is still worth doing, because it is the difference between
"we checked" and "we checked the close behavior and the recorded release state".
The two snapshots
Neither handbook is written against a moving target. Each is pinned.
| Handbook | What its pages are checked against |
|---|---|
| Coldstart | One fixed revision of the Coldstart source, the same revision for every page in the handbook. This site calls it the Coldstart review snapshot. |
| ROOK | The ROOK source snapshot of 10 August 2026, together with the approved set of claims ROOK may currently make in public. |
A snapshot does not move as the product does. Both products have continued to change since their snapshots were taken, which is the point of pinning: a page describes the build that was actually read, rather than a build nobody has read yet. It also means that the further a snapshot recedes, the more carefully a page should be treated as history rather than as current behavior.
Neither handbook declares a version number, because neither product has released one. There is no public package and no supported installation command for either today.
What this line does not tell you
- That the claim is correct. It records that the page was compared against product evidence on a named date. A careful comparison against the wrong evidence still produces a checked date.
- That the product still behaves this way. The snapshot is fixed and the product has moved past it.
- That the whole handbook was re-read at once. Each page carries its own date, and they differ.
- That anything on the page was measured for outcomes. These pages describe named mechanisms and their limits. Neither handbook establishes that using them improves how work turns out.
If a claim looks wrong
Write to [email protected] and name the page. A claim that no longer holds is worth more to us as a report than as a page nobody trusts, and correcting one is cheaper than re-checking a handbook.