CRITICAL: Use for ALL Rust questions including errors, design, and coding. HIGHEST PRIORITY for: 比较, 对比, compare, vs, versus, 区别, difference, 最佳实践, best practice, tokio vs, async-std vs, 比较 tokio, 比较 async, Triggers on: Rust, cargo, rustc, crate, Cargo.toml, 意图分析, 问题分析, 语义分析, analyze intent, questio

Rust Question Router Version: 2.0.0 Last Updated: 2025 01 22 v2.0: Context optimized detailed examples moved to sub files Meta Cognition Framework Core Principle Don't answer directly. Trace through the cognitive layers first. Routing by Entry Point User Signal Entry Layer Direction First Skill E0xxx error Layer 1 Trace UP ↑ m01 m07 Compile error Layer 1 Trace UP ↑ Error table below "How to design..." Layer 2 Check L3, then DOWN ↓ m09 domain "Building [domain] app" Layer 3 Trace DOWN ↓ domain "Best practice..." Layer 2 Both directions m09 m15 Performance issue Layer 1 → 2 UP then DOWN m10 performance CRITICAL: Dual Skill Loading When domain keywords are present, you MUST load BOTH skills: Domain Keywords L1 Skill L3 Skill Web API, HTTP, axum, handler m07 concurrency domain web 交易, 支付, trading, payment m01 ownership domain fintech CLI, terminal, clap m07 concurrency domain cli kubernetes, grpc, microservice m07 concurrency domain cloud native embedded, no std, MCU m02 resource domain embedded INSTRUCTIONS FOR CLAUDE CRITICAL: Negotiation Protocol Trigger BEFORE answering, check if negotiation is required: Query Contains Action "比较", "对比", "compare", "vs", "versus" MUST use negotiation "最佳实践", "best practice" MUST use negotiation Domain + error (e.g., "交易系统 E0382") MUST use negotiation Ambiguous scope (e.g., "tokio 性能") SHOULD use negotiation When negotiation is required, include: 详细协议见: patterns/negotiation.md Default Project Settings When creating new Rust projects or Cargo.toml files, ALWAYS use: Layer 1 Skills (Language Mechanics) Pattern Route To move, borrow, lifetime, E0382, E0597 m01 ownership Box, Rc, Arc, RefCell, Cell m02 resource mut, interior mutability, E0499, E0502, E0596 m03 mutability generic, trait, inline, monomorphization m04 zero cost type state, phantom, newtype m05 type driven Result, Error, panic, ?, anyhow, thiserror m06 error handling Send, Sync, thread, async, channel m07 concurrency unsafe, FFI, extern, raw pointer, transmute unsafe checker Layer 2 Skills (Design Choices) Pattern Route To domain model, business logic m09 domain performance, optimization, benchmark m10 performance integration, interop, bindings m11 ecosystem resource lifecycle, RAII, Drop m12 lifecycle domain error, recovery strategy m13 domain error mental model, how to think m14 mental model anti pattern, common mistake, pitfall m15 anti pattern Layer 3 Skills (Domain Constraints) Domain Keywords Route To fintech, trading, decimal, currency domain fintech ml, tensor, model, inference domain ml kubernetes, docker, grpc, microservice domain cloud native embedded, sensor, mqtt, iot domain iot web server, HTTP, REST, axum, actix domain web CLI, command line, clap, terminal domain cli no std, microcontroller, firmware domain embedded Error Code Routing Error Code Route To Common Cause E0382 m01 ownership Use of moved value E0597 m01 ownership Lifetime too short E0506 m01 ownership Cannot assign to borrowed E0507 m01 ownership Cannot move out of borrowed E0515 m01 ownership Return local reference E0716 m01 ownership Temporary value dropped E0106 m01 ownership Missing lifetime specifier E0596 m03 mutability Cannot borrow as mutable E0499 m03 mutability Multiple mutable borrows E0502 m03 mutability Borrow conflict E0277 m04/m07 Trait bound not satisfied E0308 m04 zero cost Type mismatch E0599 m04 zero cost No method found E0038 m04 zero cost Trait not object safe E0433 m11 ecosystem Cannot find crate/module Functional Routing Table Pattern Route To Action latest version, what's new rust learner Use agents API, docs, documentation docs researcher Use agent code style, naming, clippy coding guidelines Read skill unsafe code, FFI unsafe checker Read skill code review os checker See integrations/os checker.md Priority Order 1. Identify cognitive layer (L1/L2/L3) 2. Load entry skill (m0x/m1x/domain) 3. Trace through layers (UP or DOWN) 4. Cross reference skills as indicated in "Trace" sections 5. Answer with reasoning chain Keyword Conflict Resolution Keyword Resolution unsafe unsafe checker (more specific than m11) error m06 for general, m13 for domain specific RAII m12 for design, m01 for implementation crate rust learner for version, m11 for integration tokio tokio for API, m07 for concepts Priority Hierarchy: Sub Files Reference File Content patterns/negotiation.md Negotiation protocol details examples/workflow.md Workflow examples integrations/os checker.md OS Checker integration

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