docs(ai): add Claude and Codex adapter guides

Author: Diddyy

CLAUDE.md

@@ -0,0 +1,20 @@
+# Claude Adapter (Turbo Sample Plugin)
+
+This repository keeps plugin-specific rules locally and inherits full AI governance from `../turbo-cloud`.
+
+## Required context load order
+1. `AGENTS.md`
+2. `TurboSamplePlugin/Revision/README.md`
+3. `../turbo-cloud/AGENTS.md`
+4. `../turbo-cloud/CONTEXT.md`
+
+## Non-negotiable constraints
+- Keep revision parser/serializer work under `TurboSamplePlugin/Revision/<revision>/**`.
+- Update `Headers.cs`, parser/serializer classes, and `Revision<id>.cs` mappings together.
+- Do not move protocol revision files into `turbo-cloud`.
+
+## Validation commands
+```bash
+dotnet build TurboSamplePlugin/TurboSamplePlugin.csproj -t:TurboSamplePluginFastCheck
+dotnet build TurboSamplePlugin/TurboSamplePlugin.csproj -t:TurboSamplePluginQualityGate
+```

CODEX.md

@@ -0,0 +1,20 @@
+# Codex Adapter (Turbo Sample Plugin)
+
+This repository keeps plugin-specific rules locally and inherits full AI governance from `../turbo-cloud`.
+
+## Required context load order
+1. `AGENTS.md`
+2. `TurboSamplePlugin/Revision/README.md`
+3. `../turbo-cloud/AGENTS.md`
+4. `../turbo-cloud/CONTEXT.md`
+
+## Non-negotiable constraints
+- Keep revision parser/serializer work under `TurboSamplePlugin/Revision/<revision>/**`.
+- Update `Headers.cs`, parser/serializer classes, and `Revision<id>.cs` mappings together.
+- Do not move protocol revision files into `turbo-cloud`.
+
+## Validation commands
+```bash
+dotnet build TurboSamplePlugin/TurboSamplePlugin.csproj -t:TurboSamplePluginFastCheck
+dotnet build TurboSamplePlugin/TurboSamplePlugin.csproj -t:TurboSamplePluginQualityGate
+```

README.md

@@ -81,6 +81,9 @@ This file explicitly defines the cross-repo boundary:
 
 For Boost-style AI task recipes and prompt contract, use:
 - `../turbo-cloud/AGENTS.md` (canonical source)
+- Local tool adapters:
+  - `CLAUDE.md`
+  - `CODEX.md`
 
 ## Quality Model (Two-Phase)
 - Fast local commit check: