patterns

name	patterns
description	Project code patterns and conventions. Auto-loads when implementing, designing, verifying, or reviewing code. Provides detailed pattern definitions with code examples.
user-invocable	false
allowed-tools	Read, Glob, Grep

Project Patterns Reference

This skill contains detailed pattern documentation for the Stage project. See individual pattern files for full details with code examples.

Available patterns:

• mcp-tool-handler.md — MCP Tool Handler (#[tool_router] + Parameters + query_addon + log_activity)
• tcp-length-prefix.md — Length-Prefixed TCP Codec (sync + async variants)
• arc-mutex-state.md — Arc<Mutex> with Background Task
• gdext-class.md — GDExtension Class Export (#[derive(GodotClass)] + #[godot_api])
• serde-tagged-enum.md — Serde Tagged Enum (#[serde(tag="type")] protocol dispatch)
• error-layering.md — Three-Tier Error Layering (CodecError → anyhow → McpError)
• inline-test-fixtures.md — Inline Test Module with Builder Fixtures
• activity-logging.md — Activity Logging Tail (summary up front, log_activity at handler tail)
• clip-session.md — ClipSession Resource (open + analyze + finalize for clip analysis)
• godot-e2e-harness.md — Godot E2E Test Harness (GodotFixture + TestHarness + E2EHarness + DirectorFixture + DaemonFixture)
• director-tool-macro.md — Director Tool Macro (director_tool! wraps serialize_params + run_operation + deserialize_response + serialize_response for all Director tools)
• serde-defaults.md — Serde Default Functions (#[serde(default = "fn")] for non-zero MCP param defaults)