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Clojure style guidelines. Activate before writing or editing Clojure code
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Use when drafting, writing, or filing a Linear ticket/issue, or asked for a Linear title/body/description.
Use when drafting, writing, or opening a pull request (gh pr create), or asked for a PR title/body/description.
Writing voice for authored prose — PR bodies, Linear tickets, review comments, commit messages.
Hand a file to the user's running editor and block until they finish editing it. Use whenever a draft (PR body, ticket, commit message, any generated file) needs the user's review before you act on it, or when a task says "open this in my editor/vim/nvim".
Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on their design.
Break a plan, spec, or PRD into independently-grabbable issues on the project issue tracker using tracer-bullet vertical slices. Use when user wants to convert a plan into issues, create implementation tickets, or break down work into issues.
| name | clojure-style |
| description | Clojure style guidelines. Activate before writing or editing Clojure code |
| paths | ["**/*.clj","**/*.cljs","**/*.cljc","**/*.bb","**/*.edn"] |
Build primitives that combine orthogonally. Don't build a function that handles multiple modes via flags — build pieces that the caller composes. If a simpler expression exists, use it. Extract helpers when there's 3+ repeats. Use the abstractions and hooks the library/framework provides rather than wrapping or patching after the fact. If a library has a custom dispatch mechanism, use it.
Bad: a function with a mode parameter that switches between strategies.
Good: two functions the caller can combine as needed.
with-redefs is never to be used
Write docstrings matching these archetypes. Match their voice, verbosity, and formatting exactly; bare identifiers, no backticks. Key descriptions use " - " (space-dash-space). Optional keys: append ", default = X". Predicate → clojure.core/nil? Pure transform → clojure.core/get-in Multi-arity with branching → clojure.core/reduce Lazy or transducer → clojure.core/filter State mutation + caller-fn rule → clojure.core/swap! Options map → clojure.tools.deps/create-basis (or calc-basis for single-arg options) Structured return-map → clojure.tools.deps/make-classpath-map Otherwise generally copy clojure.core, and other core team libs.
Deprecation notice → clojure.core/replicate DEPRECATED: prefix.
Write fn arglist on newline after fn name.
Args: clojure.core. No :as.
* for deref bindings, foobar = @*foobar
use some? only when True is important vs just truthy
test names end -test
