diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca76228..a46121e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- **Documentation.** Three divergences from the specification are now written
+  down rather than merely true: a percent-encoded delimiter inside a
+  `pipeDelimited`/`spaceDelimited` value is folded into the delimiter, a Header
+  Object carrying `name`/`in` is ignored rather than refused, and `example`
+  with `examples` are both kept instead of being refused as mutually exclusive.
+  No behaviour changed: the first agrees with how a PHP application reads the
+  same query, and changing it would break that agreement to gain agreement with
+  the text.
+
 - **Fixed.** A YAML document under a kilobyte could exhaust memory and die with
   a fatal error rather than an `InvalidContract`. Anchors and aliases expand
   inside the parser, before any budget measures anything, and the byte budget
diff --git a/README.md b/README.md
index 2a99e17..c324952 100644
--- a/README.md
+++ b/README.md
@@ -369,6 +369,17 @@ REQUIRED `description`, or an `encoding` declared on a media type the
 specification does not apply it to — accepted, because neither changes a
 verdict. Reach for a linter for the rest.
 
+Three divergences from the specification are deliberate and pinned:
+
+| Where | The specification | This package |
+|---|---|---|
+| A percent-encoded delimiter inside a `pipeDelimited` or `spaceDelimited` value | `\|` and space MUST be percent-encoded inside a value, so `?ids=a%7Cb` is the single element `a\|b` | folds the encoded form into the delimiter and reads two elements — which is what a PHP application reading the same query does, and agreeing with the application is the point of a validator. A value containing the delimiter cannot be expressed |
+| A Header Object carrying `name` or `in` | both MUST NOT be specified | ignored, not refused: the header's name comes from the map key either way |
+| `example` and `examples` on the same object | mutually exclusive | both are kept as annotations and handed to consumers; the validator reads neither |
+
+`deepObject` is not among them: `f%5Ba%5D=1` and `f[a]=1` are the same
+parameter here and in PHP's own query parsing.
+
 ## Security
 
 **Declared `security` is not enforced.** Requirements are compiled, and a
diff --git a/README.ru.md b/README.ru.md
index 04078ed..f016fb5 100644
--- a/README.ru.md
+++ b/README.ru.md
@@ -375,6 +375,17 @@ instance path равен `$`; параметр печатается, но каж
 применяет, — принимаются, потому что вердикт от них не зависит. Для остального
 есть линтер.
 
+Три расхождения со спекой сделаны осознанно и зафиксированы:
+
+| Где | Спека | Пакет |
+|---|---|---|
+| Percent-encoded разделитель внутри значения `pipeDelimited`/`spaceDelimited` | `\|` и пробел внутри значения MUST быть percent-encoded, поэтому `?ids=a%7Cb` — один элемент `a\|b` | складывает закодированную форму в разделитель и читает два элемента — ровно так же читает PHP-приложение, разбирающее тот же query, а согласие с приложением и есть смысл валидатора. Значение с разделителем внутри выразить нельзя |
+| Header Object с `name` или `in` | оба MUST NOT be specified | игнорируются, а не отвергаются: имя заголовка в любом случае берётся из ключа карты |
+| `example` и `examples` на одном объекте | взаимоисключающие | оба сохраняются как аннотации и отдаются потребителю; валидация не читает ни одно |
+
+`deepObject` в этот список не входит: `f%5Ba%5D=1` и `f[a]=1` — один и тот же
+параметр и здесь, и в собственном разборе query у PHP.
+
 ## Безопасность
 
 **Объявленный `security` не проверяется.** Требования компилируются, и
diff --git a/llms.txt b/llms.txt
index 2be7fff..e96664b 100644
--- a/llms.txt
+++ b/llms.txt
@@ -103,6 +103,14 @@ Rules:
 - `format: date-time` (and the other supported formats) are asserted, not
   treated as annotations — a pinned divergence from
   league/openapi-psr7-validator;
+- three pinned divergences from the specification: a percent-encoded `|` or
+  space inside a `pipeDelimited`/`spaceDelimited` value is folded into the
+  delimiter (as PHP's own query parsing does, so `?ids=a%7Cb` is two elements
+  here and one per the spec — a value containing the delimiter cannot be
+  expressed); a Header Object carrying `name`/`in` is ignored rather than
+  refused; `example` and `examples` together are both kept instead of being
+  refused as mutually exclusive. `deepObject` is NOT one of them —
+  `f%5Ba%5D=1` and `f[a]=1` agree with PHP;
 - multi-file resolution is differentially tested against cebe/php-openapi
   (dev-only oracle, OAS 3.0): pinned divergences are the depth budget on
   deep `$ref` chains and fast rejection of cross-file cycles.