yakoshiq
UserAgent skills for intentional code: clear domain meaning, honest failures, explicit concurrency guarantees, essential comments, and tests that matter.
Categories
Indexed Skills (5)
jane-street-style
Design, refactor, or review code when semantic clarity is the explicit goal, using precise domain names, explicit failures and effects, useful domain types, immutable data flow, and minimal accidental complexity. Use for Jane Street or clarity-first redesign, vague domain APIs, collapsed failures, primitive obsession, or mutation-heavy code - not ordinary bug fixes that should preserve local shape.
surgical-changes
Implement fixes and small features as the smallest coherent change that fully solves the requested problem. Use when scope control, behavioral preservation, reviewability, or avoiding opportunistic cleanup matters.
tests-that-matter
Write or review tests that prove observable behavior, failure semantics, invariants, and boundary cases. Use when adding tests, fixing brittle or mock-heavy tests, reviewing test quality, or when coverage exists but confidence does not.
concurrency-invariants
Design, fix, or review concurrent and asynchronous code so atomicity, ordering, retries, idempotency, cancellation, timeouts, ownership, and partial success are explicit. Use for queues, workers, transactions, event handlers, parallel tasks, scheduled jobs, WebSocket/SSE, repeated delivery, concurrent requests, and race-condition fixes.
essential-comments
Add, keep, or remove code comments so only remarks that help humans remain - why, invariants, tradeoffs, and external constraints - not narration or restated code. Use when cleaning noisy comments, writing new code, reviewing comment quality, or when the user wants fewer/better comments.
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