Coding & Debugging
PromptBeginner5 minmarkdown
Xcode MCP tools are accessed via `mcporter` CLI
which bridges MCP servers to standard command-line tools. This skill defines when to use Xcode MCP and when to prefer standard tools.
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Coding & Debugging
PromptBeginner5 minmarkdown
xcode-mcp (for pi agent)
---
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Coding & Debugging
PromptBeginner5 minmarkdown
description: Guidelines for efficient Xcode MCP tool usage via mcporter CLI. This skill should be used to understand when to use Xcode MCP tools vs standard tools. Xcode MCP consumes many tokens - use only for build
test
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Creative
PromptBeginner5 minmarkdown
- Generate infographics
including graphs and pie charts
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Coding & Debugging
PromptBeginner5 minmarkdown
code generation for online assessments
SOLVE THE QUESTION IN CPP, USING NAMESPACE STD, IN A SIMPLE BUT HIGHLY EFFICIENT WAY, AND PROVIDE IT WITH THIS RESTYLING:
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Creative
PromptBeginner5 minmarkdown
Improve
What's the single smartest and most radically innovative and accretive and useful and compelling addition you could make to the project at this point?
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Creative
PromptBeginner5 minmarkdown
Start every task by restating requirements
constraints
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Writing & Content
PromptBeginner5 minmarkdown
- Never rewrite
delete
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Writing & Content
PromptBeginner5 minmarkdown
- Write clear user stories
acceptance criteria
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Coding & Debugging
PromptBeginner5 minmarkdown
I'm a political science PhD candidate who uses R regularly but would never call myself *an R person*. I needed a Claude Code skill for base R — something without tidyverse
without ggplot2
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Writing & Content
PromptBeginner5 minmarkdown
writeLines(template
out_file)
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Writing & Content
PromptBeginner5 minmarkdown
# write.csv(df
%s_clean.csv
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Writing & Content
PromptBeginner5 minmarkdown
# write.csv(df
data_clean.csv
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Coding & Debugging
PromptBeginner5 minmarkdown
- `arrows`: `code = 1` (head at start)
`code = 2` (head at end
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Creative
PromptBeginner5 minmarkdown
- `nstart > 1` recommended (e.g.
`nstart = 25`): runs algorithm from multiple random starts
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Coding & Debugging
PromptBeginner5 minmarkdown
- `SANN` (simulated annealing): convergence code is **always 0** — it never fails. `maxit` = total function evals (default 10000)
no other stopping criterion.
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Creative
PromptBeginner5 minmarkdown
- Self-starting models (`SSlogis`
`SSasymp`
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Creative
PromptBeginner5 minmarkdown
- `aov` is a wrapper around `lm` that stores extra info for balanced ANOVA. For unbalanced designs
Type I SS (sequential) are computed — order of terms matters.
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Creative
PromptBeginner5 minmarkdown
- `model.matrix` creates the design matrix including dummy coding. Default contrasts: `contr.treatment` for unordered factors
`contr.poly` for ordered.
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Coding & Debugging
PromptBeginner5 minmarkdown
- `URLencode(url
reserved = FALSE)` by default does NOT encode reserved chars (`/`
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Creative
PromptBeginner5 minmarkdown
- `substr(x
start
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Writing & Content
PromptBeginner5 minmarkdown
- `write.csv` fixes `sep =
`
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Coding & Debugging
PromptBeginner5 minmarkdown
- `as.numeric(f)` returns **integer codes**
not original values. Use `as.numeric(levels(f))[f]` or `as.numeric(as.character(f))`.
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Coding & Debugging
PromptBeginner5 minmarkdown
- Factor indexing: `x[f]` uses integer codes of factor `f`
not its character labels. Use `x[as.character(f)]` for label-based indexing.
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