YouTip

The slash / in Codex is the slash commands system. After entering the / symbol in the dialog box, the system immediately pops up a command panel, listing all available commands and their descriptions. To use MCP, Skills, browser, etc., just enter / and then select the corresponding function. !(https://example.com/wp-content/uploads/2026/05/tutorial_1778497354295.png) If you want to summon the pet, you can enter /Pet, English version enter /pet: !(https://example.com/wp-content/uploads/2026/05/tutorial_1778498123092.png) If Chinese usage feels awkward, you can set the language to English: !(https://example.com/wp-content/uploads/2026/05/tutorial_1778499288849.png) ## Command Categories Can be divided into four major categories by function: Context Management, Code & Development Workflow, Model & Reasoning Control, Personalization & Others. ### Context Management A group of commands that control conversation threads and context windows. | Command | Function | Description | Applicable Scenario | | --- | --- | --- | --- | | /compact, /compress | Compress context | Intelligently summarize current conversation history, retain key information, free up token space | When "context full" warning appears in long conversations | | /status, /state | View status | Output current conversation ID, consumed context tokens, remaining quota, and other key runtime parameters | Before deciding whether to perform token-consuming operations | > /compact does not lose key context; it intelligently retains important code snippets and decision information, only compressing redundant conversation rounds. ### Code & Development Workflow Core functional command group for developers. | Command | Function | Description | Applicable Scenario | | --- | --- | --- | --- | | /review, /code review | Code review | Have Claude systematically review current file or specified code segments, checking for potential bugs, security issues, performance bottlenecks, and code style | Before submitting PR, after code refactoring | | /side, /sidebar | Side conversation | Initiate independent conversation in temporary branch without affecting main line, can merge, discard or retain after completion | When you want to quickly try a scheme without polluting main conversation history | | /fork, /branch | Fork branch | Fork conversation into local Git branch or new working tree, support parallel exploration of different schemes | When you need to compare scheme A and scheme B | | /mcp | MCP status | List all MCP (Model Context Protocol) servers connected in current conversation, view online status and available tools list | Check connection status when external tools are not responding | > Difference between /side and /fork: /side is a branch at the conversation level, suitable for quick experiments; /fork creates a Git branch, suitable for parallel development at the code level. ### Model & Reasoning Control A group of commands to adjust AI capabilities and thinking depth. | Command | Function | Description | Applicable Scenario | | --- | --- | --- | --- | | /reasoning, /reasoning mode | Reasoning intensity | Switch between low/medium/high reasoning intensity, display current level in real-time after command | Raise intensity for complex algorithm problems, keep at low-medium for daily Q&A | | /model, /model | Model switching | Switch between different AI models, display current model name after command | Use lightweight model for quick template generation, flagship model for in-depth architecture analysis | > High-intensity reasoning responds slower but with more accurate answers,