feat(plugin): guard Rust-owned classes the worker has no proxy for

The worker's autoloader fell through to the real Composer source for every
Rust-owned FQCN without a proxy stub, so plugin code doing `new Filesystem()`
or subclassing `LibraryInstaller` silently ran on a second instance the Rust
side never sees. An unimplemented part of the plugin API has to fail with an
explicit error naming it, not quietly work on a disconnected copy.

The stub generator now emits a guard class for each of those FQCNs: the real
declaration, hierarchy and constants, with every constructor and method
raising an explicit error. References satisfied by the declaration alone
(`instanceof`, `X::class`, `Link::TYPE_REQUIRE`) keep working. Two FQCNs stay
resolvable to the real class, each listed with the worker-side mechanism that
makes a natively constructed instance correct.

The error had nowhere to go: `Installer::run` dropped the `Result` of both
`dispatch_script` calls, so an exception from a listener ended in exit 0.
Both propagate now, the way the exception does upstream.

Three real-plugin E2E comparisons stop at a guard and are ignored, each
naming the class it needs.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

17 files changed, 1185 insertions, 0 deletions

diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Decisions.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Decisions.php
new file mode 100644
index 00000000..21d44992
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Decisions.php
@@ -0,0 +1,145 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\Decisions.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+class Decisions implements \Iterator, \Countable
+{
+    public const DECISION_LITERAL = 0;
+    public const DECISION_REASON = 1;
+
+    public function __construct(Pool $pool)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function decide(int $literal, int $level, Rule $why): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'decide');
+    }
+
+    public function satisfy(int $literal): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'satisfy');
+    }
+
+    public function conflict(int $literal): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'conflict');
+    }
+
+    public function decided(int $literalOrPackageId): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'decided');
+    }
+
+    public function undecided(int $literalOrPackageId): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'undecided');
+    }
+
+    public function decidedInstall(int $literalOrPackageId): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'decidedInstall');
+    }
+
+    public function decisionLevel(int $literalOrPackageId): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'decisionLevel');
+    }
+
+    public function decisionRule(int $literalOrPackageId): Rule
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'decisionRule');
+    }
+
+    public function atOffset(int $queueOffset): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'atOffset');
+    }
+
+    public function validOffset(int $queueOffset): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'validOffset');
+    }
+
+    public function lastReason(): Rule
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'lastReason');
+    }
+
+    public function lastLiteral(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'lastLiteral');
+    }
+
+    public function reset(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'reset');
+    }
+
+    public function resetToOffset(int $offset): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'resetToOffset');
+    }
+
+    public function revertLast(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'revertLast');
+    }
+
+    public function count(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'count');
+    }
+
+    public function rewind(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'rewind');
+    }
+
+    public function current()
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'current');
+    }
+
+    public function key(): ?int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'key');
+    }
+
+    public function next(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'next');
+    }
+
+    public function valid(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'valid');
+    }
+
+    public function isEmpty(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isEmpty');
+    }
+
+    protected function addDecision(int $literal, int $level): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'addDecision');
+    }
+
+    public function toString(?Pool $pool = null): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'toString');
+    }
+
+    public function __toString(): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__toString');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/DefaultPolicy.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/DefaultPolicy.php
new file mode 100644
index 00000000..bf6e55fb
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/DefaultPolicy.php
@@ -0,0 +1,55 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\DefaultPolicy.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\Package\BasePackage;
+use Composer\Package\PackageInterface;
+
+class DefaultPolicy implements PolicyInterface
+{
+    public function __construct(bool $preferStable = false, bool $preferLowest = false, ?array $preferredVersions = null)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function versionCompare(PackageInterface $a, PackageInterface $b, string $operator): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'versionCompare');
+    }
+
+    public function selectPreferredPackages(Pool $pool, array $literals, ?string $requiredPackage = null): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'selectPreferredPackages');
+    }
+
+    protected function groupLiteralsByName(Pool $pool, array $literals): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'groupLiteralsByName');
+    }
+
+    public function compareByPriority(Pool $pool, BasePackage $a, BasePackage $b, ?string $requiredPackage = null, bool $ignoreReplace = false): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'compareByPriority');
+    }
+
+    protected function replaces(BasePackage $source, BasePackage $target): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'replaces');
+    }
+
+    protected function pruneToBestVersion(Pool $pool, array $literals): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'pruneToBestVersion');
+    }
+
+    protected function pruneRemoteAliases(Pool $pool, array $literals): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'pruneRemoteAliases');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/GenericRule.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/GenericRule.php
new file mode 100644
index 00000000..639f47fa
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/GenericRule.php
@@ -0,0 +1,107 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\GenericRule.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+class GenericRule extends Rule
+{
+    public function __construct(array $literals, $reason, $reasonData)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function getLiterals(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getLiterals');
+    }
+
+    public function getHash()
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getHash');
+    }
+
+    public function equals(Rule $rule): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'equals');
+    }
+
+    public function isAssertion(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isAssertion');
+    }
+
+    public function __toString(): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__toString');
+    }
+
+    public function getReason(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getReason');
+    }
+
+    public function getReasonData()
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getReasonData');
+    }
+
+    public function getRequiredPackage(): ?string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRequiredPackage');
+    }
+
+    public function setType($type): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'setType');
+    }
+
+    public function getType(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getType');
+    }
+
+    public function disable(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'disable');
+    }
+
+    public function enable(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'enable');
+    }
+
+    public function isDisabled(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isDisabled');
+    }
+
+    public function isEnabled(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isEnabled');
+    }
+
+    public function isCausedByLock(RepositorySet $repositorySet, Request $request, Pool $pool): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isCausedByLock');
+    }
+
+    public function getSourcePackage(Pool $pool): BasePackage
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getSourcePackage');
+    }
+
+    public function getPrettyString(RepositorySet $repositorySet, Request $request, Pool $pool, bool $isVerbose, array $installedMap = [], array $learnedPool = []): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getPrettyString');
+    }
+
+    protected function formatPackagesUnique(Pool $pool, array $literalsOrPackages, bool $isVerbose, ?ConstraintInterface $constraint = null, bool $useRemovedVersionGroup = false): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'formatPackagesUnique');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/LocalRepoTransaction.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/LocalRepoTransaction.php
new file mode 100644
index 00000000..8c702b28
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/LocalRepoTransaction.php
@@ -0,0 +1,20 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\LocalRepoTransaction.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\Repository\InstalledRepositoryInterface;
+use Composer\Repository\RepositoryInterface;
+
+class LocalRepoTransaction extends Transaction
+{
+    public function __construct(RepositoryInterface $lockedRepository, InstalledRepositoryInterface $localRepository)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/LockTransaction.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/LockTransaction.php
new file mode 100644
index 00000000..e7a0b36f
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/LockTransaction.php
@@ -0,0 +1,37 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\LockTransaction.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+class LockTransaction extends Transaction
+{
+    public function __construct(Pool $pool, array $presentMap, array $unlockableMap, Decisions $decisions)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function setResultPackages(Pool $pool, Decisions $decisions): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'setResultPackages');
+    }
+
+    public function setNonDevPackages(LockTransaction $extractionResult): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'setNonDevPackages');
+    }
+
+    public function getNewLockPackages(bool $devMode, bool $updateMirrors = false): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getNewLockPackages');
+    }
+
+    public function getAliases(array $aliases): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getAliases');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/MultiConflictRule.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/MultiConflictRule.php
new file mode 100644
index 00000000..d8d86170
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/MultiConflictRule.php
@@ -0,0 +1,107 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\MultiConflictRule.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+class MultiConflictRule extends Rule
+{
+    public function __construct(array $literals, $reason, $reasonData)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function getLiterals(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getLiterals');
+    }
+
+    public function getHash()
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getHash');
+    }
+
+    public function equals(Rule $rule): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'equals');
+    }
+
+    public function isAssertion(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isAssertion');
+    }
+
+    public function disable(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'disable');
+    }
+
+    public function __toString(): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__toString');
+    }
+
+    public function getReason(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getReason');
+    }
+
+    public function getReasonData()
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getReasonData');
+    }
+
+    public function getRequiredPackage(): ?string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRequiredPackage');
+    }
+
+    public function setType($type): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'setType');
+    }
+
+    public function getType(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getType');
+    }
+
+    public function enable(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'enable');
+    }
+
+    public function isDisabled(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isDisabled');
+    }
+
+    public function isEnabled(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isEnabled');
+    }
+
+    public function isCausedByLock(RepositorySet $repositorySet, Request $request, Pool $pool): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isCausedByLock');
+    }
+
+    public function getSourcePackage(Pool $pool): BasePackage
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getSourcePackage');
+    }
+
+    public function getPrettyString(RepositorySet $repositorySet, Request $request, Pool $pool, bool $isVerbose, array $installedMap = [], array $learnedPool = []): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getPrettyString');
+    }
+
+    protected function formatPackagesUnique(Pool $pool, array $literalsOrPackages, bool $isVerbose, ?ConstraintInterface $constraint = null, bool $useRemovedVersionGroup = false): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'formatPackagesUnique');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Pool.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Pool.php
new file mode 100644
index 00000000..a1770817
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Pool.php
@@ -0,0 +1,115 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\Pool.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\Package\BasePackage;
+use Composer\Semver\Constraint\ConstraintInterface;
+
+class Pool implements \Countable
+{
+    public function __construct(array $packages = [], array $unacceptableFixedOrLockedPackages = [], array $removedVersions = [], array $removedVersionsByPackage = [], array $securityRemovedVersions = [], array $abandonedRemovedVersions = [])
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function getRemovedVersions(string $name, ConstraintInterface $constraint): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRemovedVersions');
+    }
+
+    public function getAllRemovedVersions(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getAllRemovedVersions');
+    }
+
+    public function getRemovedVersionsByPackage(string $objectHash): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRemovedVersionsByPackage');
+    }
+
+    public function getAllRemovedVersionsByPackage(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getAllRemovedVersionsByPackage');
+    }
+
+    public function isSecurityRemovedPackageVersion(string $packageName, ?ConstraintInterface $constraint): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isSecurityRemovedPackageVersion');
+    }
+
+    public function getSecurityAdvisoryIdentifiersForPackageVersion(string $packageName, ?ConstraintInterface $constraint): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getSecurityAdvisoryIdentifiersForPackageVersion');
+    }
+
+    public function isAbandonedRemovedPackageVersion(string $packageName, ?ConstraintInterface $constraint): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isAbandonedRemovedPackageVersion');
+    }
+
+    public function getAllSecurityRemovedPackageVersions(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getAllSecurityRemovedPackageVersions');
+    }
+
+    public function getAllAbandonedRemovedPackageVersions(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getAllAbandonedRemovedPackageVersions');
+    }
+
+    public function getPackages(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getPackages');
+    }
+
+    public function packageById(int $id): BasePackage
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'packageById');
+    }
+
+    public function count(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'count');
+    }
+
+    public function whatProvides(string $name, ?ConstraintInterface $constraint = null): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'whatProvides');
+    }
+
+    public function literalToPackage(int $literal): BasePackage
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'literalToPackage');
+    }
+
+    public function literalToPrettyString(int $literal, array $installedMap): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'literalToPrettyString');
+    }
+
+    public function match(BasePackage $candidate, string $name, ?ConstraintInterface $constraint = null): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'match');
+    }
+
+    public function isUnacceptableFixedOrLockedPackage(BasePackage $package): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isUnacceptableFixedOrLockedPackage');
+    }
+
+    public function getUnacceptableFixedOrLockedPackages(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getUnacceptableFixedOrLockedPackages');
+    }
+
+    public function __toString(): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__toString');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/PoolBuilder.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/PoolBuilder.php
new file mode 100644
index 00000000..78afa42d
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/PoolBuilder.php
@@ -0,0 +1,37 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\PoolBuilder.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\EventDispatcher\EventDispatcher;
+use Composer\IO\IOInterface;
+
+class PoolBuilder
+{
+    private const LOAD_BATCH_SIZE = 50;
+
+    public function __construct(array $acceptableStabilities, array $stabilityFlags, array $rootAliases, array $rootReferences, IOInterface $io, ?EventDispatcher $eventDispatcher = null, ?PoolOptimizer $poolOptimizer = null, array $temporaryConstraints = [], ?SecurityAdvisoryPoolFilter $securityAdvisoryPoolFilter = null)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function setIgnoredTypes(array $types): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'setIgnoredTypes');
+    }
+
+    public function setAllowedTypes(?array $types): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'setAllowedTypes');
+    }
+
+    public function buildPool(array $repositories, Request $request): Pool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'buildPool');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/PoolOptimizer.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/PoolOptimizer.php
new file mode 100644
index 00000000..59489d6c
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/PoolOptimizer.php
@@ -0,0 +1,22 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\PoolOptimizer.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+class PoolOptimizer
+{
+    public function __construct(PolicyInterface $policy)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function optimize(Request $request, Pool $pool): Pool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'optimize');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Request.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Request.php
new file mode 100644
index 00000000..2d472d18
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Request.php
@@ -0,0 +1,126 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\Request.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\Package\BasePackage;
+use Composer\Package\PackageInterface;
+use Composer\Repository\LockArrayRepository;
+use Composer\Semver\Constraint\ConstraintInterface;
+
+class Request
+{
+    public const UPDATE_ONLY_LISTED = 0;
+    public const UPDATE_LISTED_WITH_TRANSITIVE_DEPS_NO_ROOT_REQUIRE = 1;
+    public const UPDATE_LISTED_WITH_TRANSITIVE_DEPS = 2;
+
+    public function __construct(?LockArrayRepository $lockedRepository = null)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function requireName(string $packageName, ?ConstraintInterface $constraint = null): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'requireName');
+    }
+
+    public function fixPackage(BasePackage $package): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'fixPackage');
+    }
+
+    public function lockPackage(BasePackage $package): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'lockPackage');
+    }
+
+    public function fixLockedPackage(BasePackage $package): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'fixLockedPackage');
+    }
+
+    public function unlockPackage(BasePackage $package): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'unlockPackage');
+    }
+
+    public function setUpdateAllowList(array $updateAllowList, $updateAllowTransitiveDependencies): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'setUpdateAllowList');
+    }
+
+    public function getUpdateAllowList(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getUpdateAllowList');
+    }
+
+    public function getUpdateAllowTransitiveDependencies(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getUpdateAllowTransitiveDependencies');
+    }
+
+    public function getUpdateAllowTransitiveRootDependencies(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getUpdateAllowTransitiveRootDependencies');
+    }
+
+    public function getRequires(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRequires');
+    }
+
+    public function getFixedPackages(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getFixedPackages');
+    }
+
+    public function isFixedPackage(BasePackage $package): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isFixedPackage');
+    }
+
+    public function getLockedPackages(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getLockedPackages');
+    }
+
+    public function isLockedPackage(PackageInterface $package): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isLockedPackage');
+    }
+
+    public function getFixedOrLockedPackages(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getFixedOrLockedPackages');
+    }
+
+    public function getPresentMap(bool $packageIds = false): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getPresentMap');
+    }
+
+    public function getFixedPackagesMap(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getFixedPackagesMap');
+    }
+
+    public function getLockedRepository(): ?LockArrayRepository
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getLockedRepository');
+    }
+
+    public function restrictPackages(array $names): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'restrictPackages');
+    }
+
+    public function getRestrictedPackages(): ?array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRestrictedPackages');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Rule2Literals.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Rule2Literals.php
new file mode 100644
index 00000000..6527e99b
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Rule2Literals.php
@@ -0,0 +1,107 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\Rule2Literals.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+class Rule2Literals extends Rule
+{
+    public function __construct(int $literal1, int $literal2, $reason, $reasonData)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function getLiterals(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getLiterals');
+    }
+
+    public function getHash()
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getHash');
+    }
+
+    public function equals(Rule $rule): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'equals');
+    }
+
+    public function isAssertion(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isAssertion');
+    }
+
+    public function __toString(): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__toString');
+    }
+
+    public function getReason(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getReason');
+    }
+
+    public function getReasonData()
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getReasonData');
+    }
+
+    public function getRequiredPackage(): ?string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRequiredPackage');
+    }
+
+    public function setType($type): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'setType');
+    }
+
+    public function getType(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getType');
+    }
+
+    public function disable(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'disable');
+    }
+
+    public function enable(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'enable');
+    }
+
+    public function isDisabled(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isDisabled');
+    }
+
+    public function isEnabled(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isEnabled');
+    }
+
+    public function isCausedByLock(RepositorySet $repositorySet, Request $request, Pool $pool): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'isCausedByLock');
+    }
+
+    public function getSourcePackage(Pool $pool): BasePackage
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getSourcePackage');
+    }
+
+    public function getPrettyString(RepositorySet $repositorySet, Request $request, Pool $pool, bool $isVerbose, array $installedMap = [], array $learnedPool = []): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getPrettyString');
+    }
+
+    protected function formatPackagesUnique(Pool $pool, array $literalsOrPackages, bool $isVerbose, ?ConstraintInterface $constraint = null, bool $useRemovedVersionGroup = false): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'formatPackagesUnique');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/RuleSet.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/RuleSet.php
new file mode 100644
index 00000000..40d6780a
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/RuleSet.php
@@ -0,0 +1,78 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\RuleSet.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\Repository\RepositorySet;
+
+class RuleSet implements \IteratorAggregate, \Countable
+{
+    public const TYPE_PACKAGE = 0;
+    public const TYPE_REQUEST = 1;
+    public const TYPE_LEARNED = 4;
+    public const TYPES = [
+        self::TYPE_PACKAGE => 'PACKAGE',
+        self::TYPE_REQUEST => 'REQUEST',
+        self::TYPE_LEARNED => 'LEARNED',
+    ];
+
+    public function __construct()
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function add(Rule $rule, $type): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'add');
+    }
+
+    public function count(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'count');
+    }
+
+    public function ruleById(int $id): Rule
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'ruleById');
+    }
+
+    public function getRules(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRules');
+    }
+
+    public function getIterator(): RuleSetIterator
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getIterator');
+    }
+
+    public function getIteratorFor($types): RuleSetIterator
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getIteratorFor');
+    }
+
+    public function getIteratorWithout($types): RuleSetIterator
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getIteratorWithout');
+    }
+
+    public function getTypes(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getTypes');
+    }
+
+    public function getPrettyString(?RepositorySet $repositorySet = null, ?Request $request = null, ?Pool $pool = null, bool $isVerbose = false): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getPrettyString');
+    }
+
+    public function __toString(): string
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__toString');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/RuleSetGenerator.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/RuleSetGenerator.php
new file mode 100644
index 00000000..4406ddda
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/RuleSetGenerator.php
@@ -0,0 +1,65 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\RuleSetGenerator.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\Filter\PlatformRequirementFilter\PlatformRequirementFilterInterface;
+use Composer\Package\BasePackage;
+
+class RuleSetGenerator
+{
+    public function __construct(PolicyInterface $policy, Pool $pool)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    protected function createRequireRule(BasePackage $package, array $providers, $reason, $reasonData): ?Rule
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'createRequireRule');
+    }
+
+    protected function createInstallOneOfRule(array $packages, $reason, $reasonData): Rule
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'createInstallOneOfRule');
+    }
+
+    protected function createRule2Literals(BasePackage $issuer, BasePackage $provider, $reason, $reasonData): ?Rule
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'createRule2Literals');
+    }
+
+    protected function createMultiConflictRule(array $packages, $reason, $reasonData): Rule
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'createMultiConflictRule');
+    }
+
+    protected function addRulesForPackage(BasePackage $package, PlatformRequirementFilterInterface $platformRequirementFilter): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'addRulesForPackage');
+    }
+
+    protected function addConflictRules(PlatformRequirementFilterInterface $platformRequirementFilter): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'addConflictRules');
+    }
+
+    protected function addRulesForRequest(Request $request, PlatformRequirementFilterInterface $platformRequirementFilter): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'addRulesForRequest');
+    }
+
+    protected function addRulesForRootAliases(PlatformRequirementFilterInterface $platformRequirementFilter): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'addRulesForRootAliases');
+    }
+
+    public function getRulesFor(Request $request, ?PlatformRequirementFilterInterface $platformRequirementFilter = null): RuleSet
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRulesFor');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/RuleSetIterator.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/RuleSetIterator.php
new file mode 100644
index 00000000..e02b58de
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/RuleSetIterator.php
@@ -0,0 +1,42 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\RuleSetIterator.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+class RuleSetIterator implements \Iterator
+{
+    public function __construct(array $rules)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function current(): Rule
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'current');
+    }
+
+    public function key(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'key');
+    }
+
+    public function next(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'next');
+    }
+
+    public function rewind(): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'rewind');
+    }
+
+    public function valid(): bool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'valid');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/SecurityAdvisoryPoolFilter.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/SecurityAdvisoryPoolFilter.php
new file mode 100644
index 00000000..43250c43
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/SecurityAdvisoryPoolFilter.php
@@ -0,0 +1,25 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\SecurityAdvisoryPoolFilter.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\Advisory\AuditConfig;
+use Composer\Advisory\Auditor;
+
+class SecurityAdvisoryPoolFilter
+{
+    public function __construct(Auditor $auditor, AuditConfig $auditConfig)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function filter(Pool $pool, array $repositories, Request $request): Pool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'filter');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Solver.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Solver.php
new file mode 100644
index 00000000..b339f276
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Solver.php
@@ -0,0 +1,58 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\Solver.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\Filter\PlatformRequirementFilter\PlatformRequirementFilterInterface;
+use Composer\IO\IOInterface;
+
+class Solver
+{
+    private const BRANCH_LITERALS = 0;
+    private const BRANCH_LEVEL = 1;
+
+    public function __construct(PolicyInterface $policy, Pool $pool, IOInterface $io)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function getRuleSetSize(): int
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRuleSetSize');
+    }
+
+    public function getPool(): Pool
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getPool');
+    }
+
+    protected function setupFixedMap(Request $request): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'setupFixedMap');
+    }
+
+    protected function checkForRootRequireProblems(Request $request, PlatformRequirementFilterInterface $platformRequirementFilter): void
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'checkForRootRequireProblems');
+    }
+
+    public function solve(Request $request, ?PlatformRequirementFilterInterface $platformRequirementFilter = null): LockTransaction
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'solve');
+    }
+
+    protected function propagate(int $level): ?Rule
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'propagate');
+    }
+
+    protected function analyze(int $level, Rule $rule): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'analyze');
+    }
+}
diff --git a/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Transaction.php b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Transaction.php
new file mode 100644
index 00000000..e3388d49
--- /dev/null
+++ b/crates/shirabe-php-rpc/php/guards/Composer/DependencyResolver/Transaction.php
@@ -0,0 +1,39 @@
+<?php
+
+// Generated by scripts/plugin-stub-generator; do not edit by hand.
+// Guard for Composer\DependencyResolver\Transaction.
+// The Rust side owns this class and the worker has no proxy for it, so this
+// declaration shadows the real one: the constants and the hierarchy stay, while
+// constructing it or calling anything on it raises an explicit error.
+
+namespace Composer\DependencyResolver;
+
+use Composer\Package\Link;
+
+class Transaction
+{
+    public function __construct(array $presentPackages, array $resultPackages)
+    {
+        \ShirabeUnsupportedClass::fail(self::class, '__construct');
+    }
+
+    public function getOperations(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getOperations');
+    }
+
+    protected function calculateOperations(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'calculateOperations');
+    }
+
+    protected function getRootPackages(): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getRootPackages');
+    }
+
+    protected function getProvidersInResult(Link $link): array
+    {
+        \ShirabeUnsupportedClass::fail(self::class, 'getProvidersInResult');
+    }
+}