AI SummaryEnforces fish shell as the default shell across Docker, scripts, and development configurations with linting rules and best practices. Benefits teams standardizing on fish shell who want consistent shell environments in Cursor.
Install
Copy this and paste it into Claude Code, Cursor, or any AI assistant:
I want to add the "rundgang2025 — Cursor Rules" prompt rules to my project. Repository: https://github.com/ff6347/rundgang2025 Please read the repo to find the rules/prompt file, then: 1. Download it to the correct location (.cursorrules, .windsurfrules, .github/prompts/, or project root — based on the file type) 2. If there's an existing rules file, merge the new rules in rather than overwriting 3. Confirm what was added
Description
default shell is fish shell
Fish Shell Usage Standards
Standards for using fish as the default interactive shell. <rule> name: use_fish_shell description: Standards for fish shell configuration and usage filters: # Match shell configuration files • type: file_name pattern: "(Dockerfile|docker-compose\\.ya?ml|\\.tool-versions|\\.envrc(\\..*)?|justfile|Makefile)$" # Match shell script files • type: file_extension pattern: "\\.(sh|bash|zsh|fish)$" # Match file creation and modification events • type: event pattern: "(file_create|file_modify)" actions: • type: reject conditions: • pattern: "#!/bin/(ba)?sh" message: "Use fish shell shebang (#!/usr/bin/env fish) for scripts" • pattern: "SHELL=/bin/(ba)?sh" message: "Set SHELL to fish in Makefiles and Docker configurations" • type: suggest message: | When working with shell configurations: • Shell specifications: `dockerfile # In Dockerfiles SHELL ["/usr/bin/env", "fish", "-c"] # In scripts #!/usr/bin/env fish ` • Required configurations: ` PROJECT_ROOT/ ├── .tool-versions # Include fish version ├── .envrc # Set SHELL if needed └── justfile # Use fish for commands ` • Shell script standards: • Use fish syntax for all scripts • Avoid POSIX-specific commands • Use fish alternatives for common operations • Document fish-specific features • Development environment: • Set fish as default shell • Use fisher for plugin management • Configure direnv for fish • Use fish_add_path for PATH management • CI/CD considerations: • Specify fish in CI runners • Include fish installation steps • Use fish for test scripts • Handle fish compatibility examples: • input: | # Bad: Using bash #!/bin/bash for i in $(seq 1 5); do echo $i done # Good: Using fish #!/usr/bin/env fish for i in (seq 1 5) echo $i end output: "Correctly formatted fish script" • input: | # Bad: Makefile with bash SHELL := /bin/bash .PHONY: test test: for f in *.txt; do echo $$f; done # Good: Makefile with fish SHELL := /usr/bin/env fish .PHONY: test test: for f in *.txt; echo $$f; end output: "Properly configured Makefile for fish" metadata: priority: high version: 1.0 </rule>
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Works With
Any AI assistant that accepts custom rules or system prompts