ncaq
UserAI prompts, agents, and skills as loadable plugins.
Categories
Indexed Skills (49)
bump-cabal-index-state
Update Cabal project index-state to the latest timestamp. Use when it needs to bump the cabal index-state.
language-extensions
Haskell language extension and language edition (GHC2024/GHC2021) selection policy. Use when configuring or reviewing Haskell language extensions, cabal default-extensions, or default-language.
kyosei
Code review for PRs or local changes. Covers code quality, dependency updates, performance, test coverage, documentation accuracy, and security. Use when reviewing PRs, checking code quality, or running comprehensive code reviews.
naming-convention
Nix naming conventions for files, variables, packages, and NixOS options based on nixpkgs official coding standards. Use when writing or reviewing Nix code.
nix-command
Nix CLI command guidelines. Use new unified CLI (nix subcommand) instead of legacy commands (nix-build, nix-env, nix-shell, etc.). Use when running or suggesting Nix commands.
nix-fast-build
nix-fast-build command reference. Parallel Nix evaluation and build tool using nix-eval-jobs. Use when running or configuring nix-fast-build.
treefmt
treefmt-nix and nix fmt guide. Unified formatting and linting with treefmt. Use when configuring or running nix fmt, treefmt, or adding formatters/linters to a Nix project.
writer-function
Nix writer functions (writeShellApplication, writeText, etc.) for generating scripts, text files, and data. Use when creating derivations that produce scripts or configuration files.
pr-style
Pull request style guidelines covering title, body, assignee, and label selection. Use when writing or proposing GitHub pull requests, including direct `gh pr create` invocations outside the /pr skill.
pr
Generate a GitHub pull request title and body from the current branch and let the user review before creation. Use when the user wants to create a pull request.
aria-usage
WAI-ARIA usage guidelines. Avoid redundant ARIA attributes. No ARIA is better than Bad ARIA. Use when writing or reviewing HTML/JSX with accessibility attributes.
as-const-satisfies
Use `as const` and `as const satisfies Type` for constant definitions in TypeScript. Use when defining constants, config objects, or string union types.
react-use-effect
Rules for useEffect usage in React including when to avoid it and when to extract it into custom hooks. Use when writing or reviewing React components that contain or might need useEffect.
react-use-ref
Avoid unnecessary useRef in React. Prefer HTML standard features, declarative libraries, state, or custom hooks. Use when writing or reviewing React components.
commit-style
Commit message style guidelines. Use when writing or proposing git commit messages, including direct git commit commands outside the /commit skill.
commit
Generate a commit message from staged changes and let the user review before committing. Use when the user wants to commit changes or create a git commit.
exception
Do not throw exceptions from pure code with error or throw, give exceptions structured types, and never silently swallow errors in IO. Use when writing or reviewing Haskell error handling, exceptions, or IO code.
export
Explicitly enumerate Haskell module exports instead of exporting everything implicitly, and use re-export sparingly. Use when writing or reviewing Haskell module export lists.
io-monad
Prefer MonadIO and MonadUnliftIO type classes over using IO directly, and avoid redundant liftIO. Use when writing or reviewing Haskell IO actions, monad transformers, or type class abstractions.
lens
Use the lens library, generating accessors with makeFieldsId for NoFieldSelectors records, export accessors together with their type classes, and prefer lens or OverloadedRecordDot over pattern matching. Use when writing or reviewing Haskell code that uses lens, records, or field access.
partial-function
Avoid partial functions such as head, fromJust, read, and (!!) in Haskell. Prefer total functions, Maybe-returning variants, and other safe alternatives. Use when writing or reviewing Haskell code that accesses lists, parses strings, or handles Maybe.
string
Prefer Text over String for text data, and use ByteString for binary or non-Unicode data. Use when writing or reviewing Haskell code that handles strings, text, or byte data.
thread-delay
Avoid overusing threadDelay because time-dependent code is unstable and unportable. Prefer synchronization variables like TMVar or retry combinators. Use when writing or reviewing Haskell code that delays threads, waits, or polls.
unsafe
Forbid unsafe Haskell functions such as unsafePerformIO, unsafeCoerce, and other unsafe-prefixed functions. Use when writing or reviewing Haskell code that uses any unsafe-prefixed function.
warning
Do not disable GHC or hlint warnings. Suppress them only per module with OPTIONS_GHC or annotations for justified exceptions. Use when writing or reviewing Haskell code, cabal files, or hlint configuration that disables warnings.
command
Guidelines for shell commands. Avoid `cat`, `find`, `grep`, `head`, and `tail`; prohibit `rm` (use `trash` instead). Use when invoking shell commands via Bash.
github
How to access GitHub. Avoid direct URL fetches; prefer GitHub MCP tools or the `gh` CLI subcommands. Use when fetching GitHub information or operating on issues, pull requests, or workflows.
proofreading-ja
Fix typos, grammar, readability, and notation consistency in Japanese text. Use when the user wants to proofread or edit Japanese text.
any-type
Avoid using any type in TypeScript. Use unknown, generics, or proper type definitions instead. Use when writing or reviewing TypeScript type annotations.
async-state-type
Avoid contradictory state types for async data fetching. Use Suspense or discriminated unions instead. Use when writing or reviewing async data fetching code in React/TypeScript.
dynamic-import
Prefer static import over dynamic import() in TypeScript/JavaScript. Use when writing or reviewing import statements.
file-naming
File and directory naming conventions for TypeScript/JavaScript projects. Use when creating new files or directories.
non-null-assertion
Do not use non-null assertion operator (!) in TypeScript. Use optional chaining, type guards, or nullish checks instead. Use when writing or reviewing TypeScript code.
nullish-undefined-null
Prefer undefined over null in TypeScript/JavaScript. Use == null for nullish checks. Use when writing or reviewing code that handles absent values.
react-component-convention
React component file conventions covering structure ordering, one-component-per-file, and splitting bloated components. Use when writing or reviewing React components.
react-refactor-component
Refactor React components to follow project conventions. Use when reorganizing, splitting, or cleaning up existing React component files.
semantic-html
Use semantic HTML elements instead of div. Use when writing or reviewing JSX/HTML markup in React or web components.
bracket
Use bracket or with-style functions to guarantee resource cleanup even on exceptions instead of separate do blocks. Use when writing or reviewing Haskell code that acquires and releases resources.
cabal-command
Use cabal with --disable-optimization for development builds and tests, and add --enable-tests to avoid rebuilds. Use when running or suggesting cabal build or test commands in Haskell development.
convertible
Prefer the convert function from the convertible library over individual conversion functions like pack, unpack, decodeUtf8, and encodeUtf8. Use when writing or reviewing Haskell code that converts between types.
function-result
Do not discard a function's final value with return (), pure (), or void; adjust the type to return the value and let the caller discard it when unneeded. Use when writing or reviewing Haskell functions that return unit or discard results.
mutable
Avoid mutable variables like IORef, STRef, and ST in Haskell and prefer immutable records. Use STM variables such as TVar for thread communication. Use when writing or reviewing Haskell code that uses mutable state or concurrency.
template-haskell
Distinguish mkName and newName in Template Haskell. Use mkName to capture existing names and newName for fresh non-colliding names. Use when writing or reviewing Template Haskell code that generates names.
test-equal
When testing Either values, compare the value directly with shouldBe instead of checking isLeft, so test failures show the actual value. Use when writing or reviewing Haskell test code that asserts on Either or similar values.
test-module-name
Name Haskell test modules after the module under test with a Spec suffix in the same namespace. Use when writing or reviewing Haskell test module names or test file organization.
comparison-operator
Prefer left-to-right ascending comparisons with less-than operators over greater-than operators, so values read in number-line order. Use when writing or reviewing comparison or range-check expressions.
naming-rule
General naming rules across programming languages. Avoid meaningless words like `common` or `util`, and prefer singular base forms. Use when creating or reviewing names of files, directories, modules, functions, or variables.
use-error-info
When handling errors locally instead of propagating them, include the error data in logs or messages. Never discard caught errors with `_`. Use when writing try/catch, Result handling, or error case branches.
research
Investigate any topic by querying multiple external sources (web, official docs, GitHub, MCP servers). Use whenever a question requires information not already in the working context, including library behavior, API specifications, error diagnostics, version comparisons, or general factual lookup.
Bio shown is the top-scored skill's repo description as a fallback — real GitHub bios land in a future update.