superpowers
claudecodexCore skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques
15 skills · hooks
Grug agent and skills for clarity-first review, refactoring, architectural replacement, codebase explanation, plain technical writing, TypeScript, engineering principles, and Mapbox GL JS flyovers.
Plugin sk from marketplace stepankuzmin in stepankuzmin/skills. Commands read from the repo's manifest — 1 month ago.
blast-radiusFind what a change could break somewhere else before it ships, beyond the diff, and prove the one fact it's safe because of by running real code instead of writing it up. Use for 'blast radius of X', 'what could this break', or reviewing a small diff you don't trust.
broRestate the last message in plain human language, with no jargon.
flyoverTurn a text description or an existing path into a cinematic 3D map flyover. Produces a GeoJSON list of camera waypoints and a self-contained HTML page that animates them with Mapbox GL JS, using the token in MAPBOX_ACCESS_TOKEN. Use whenever the user asks for a flyover, fly-through, drone shot, aer
grug-cleanupPrepare the current changes for human review with the smallest clear diff. Cuts code that earns nothing, strips comments to the essential ones, unslops the remaining text, and rates confidence in the result. Use when the work is done and about to go to review, or when the user asks to clean up, poli
grug-designDesign the smallest clear change before coding. Use for a feature, refactor, API, or architecture choice. Inspect live code when it exists.
grug-exploreBuild a working understanding of how part of a codebase works before designing, changing, or reviewing it. Use for "explore X", "get context on X", or when grug must learn unfamiliar code first.
grug-implementImplement a feature or refactor with the smallest clear diff. Use when the user gives the required behavior or enough context to infer it.
grug-reviewReview changed code for proven bugs and harmful complection. Use for a diff, pull request, or changed files. Every finding needs a concrete failure or a concrete simpler version.
howUse for \"how does X work\", code walkthroughs before changing something, and placement / ownership / layering questions (\"where should this live\", \"which package owns this\", \"is this the right layer\"). Explains subsystem architecture, runtime flow, onboarding mental models. Use why for motiva
principle-attack-the-premiseApply when two or more fixes that share one premise have failed the same gate. Take a census of which actors hold the imbalance before the next fix, then question the premise instead of writing another fix that assumes it.
principle-boundary-disciplineApply when wiring validation, error handling, or framework adapters. Concentrate guards at system boundaries (CLI, config, network, external APIs); trust internal types and keep business logic in pure functions.
principle-build-the-leverApply to any non-trivial work, not just bulk work: edits, migrations, analyses, checks. Build the tool that does it or proves it (codemod, script, generator, or a skill your subagents follow) instead of working by hand. The tool is the artifact a reviewer can rerun.
principle-encode-lessons-in-structureApply when you catch yourself writing the same instruction a second time, or notice a recurring correction. Encode the rule as a lint, metadata flag, runtime check, or script instead of more text.
principle-exhaust-the-design-spaceApply when facing a novel UI interaction or architectural decision with no precedent in the codebase. Build 2-3 competing prototypes and compare side by side before committing.
principle-experience-firstApply when product, UX, or feature-scope tradeoffs come up. Choose user delight over implementation convenience; ship fewer polished features over more rough ones.
principle-fix-root-causesApply when debugging. Trace each symptom to its root cause and fix it there; reproduce first, ask why until you reach it, resist nil-check guards that silence crashes.
principle-foundational-thinkingApply before writing logic: choosing core types and data structures, sequencing scaffold-vs-feature work, asking what concurrent actors share. Get the data structures right so downstream code becomes obvious.
principle-guard-the-context-windowApply when context is filling up: large outputs, long files, repeated reads, fan-out planning. Route bulk to subagents; keep summaries in the main thread, not raw payloads.
principle-laziness-protocolApply when refactoring, evaluating diff size, or tempted to add abstractions, layers, or signal threading. Bias toward deletion and the smallest change that solves the problem.
principle-make-operations-idempotentApply when designing commands, lifecycle steps, or processing loops that run amid crashes, restarts, and retries. Converge to the same end state regardless of partial prior runs.
principle-migrate-callers-then-delete-legacy-apisApply when introducing a new internal API while old callers still exist. Migrate callers and delete the old API in the same wave instead of preserving compatibility layers.
principle-minimize-reader-loadApply when reviewing or shaping code that's hard to trace. Count layers between question and answer, and hidden state in the reader's head; collapse one-caller wrappers and shrink mutable scope.
principle-model-the-domainApply when writing stateful logic, or when code branches a lot or repeats a shape assumption across files. Encode the domain in a structure instead of scattered conditionals.
principle-never-block-on-the-humanApply when tempted to ask 'should I do X?' on reversible work. Proceed, present the result, let the human course-correct after the fact; reserve confirmation for irreversible actions.
principle-outcome-oriented-executionApply during planned rewrites and migrations with explicit phase boundaries. Converge on the target architecture; don't preserve smooth intermediate states with throwaway compatibility code.
principle-prove-it-worksApply after completing a task, before declaring done. Verify against the real artifact (run the feature, read the actual value, inspect the diff), not a proxy, self-report, or 'it compiles.'
principle-redesign-from-first-principlesApply when integrating a new requirement into an existing design. Redesign as if the requirement had been a foundational assumption from day one, instead of bolting it on.
principle-separate-before-serializing-shared-stateApply when concurrent actors might write to the same file, branch, key, or state object. Eliminate the sharing first; serialize structurally only when one shared writer is a real invariant.
principle-sequence-verifiable-unitsApply to multi-step work (sweeps, migrations, runs of similar edits) and to how you stack commits and PRs. Break work into small units that each end in a verifiable state, check each before the next, and order delivery so the sequence proves itself to a reviewer.
principle-subtract-before-you-addApply when sequencing an addition, refactor, or rewrite. Remove dead code, redundant validators, and stub references first, then build on the simpler base.
principle-test-behavior-not-implementationApply when you write, change, or keep a test. Call the code the way its users do and assert the result they observe against a literal expected value. If the test would still pass when every imported function returns undefined, rewrite the assertion or delete the test.
principle-type-system-disciplineApply when designing types, reviewing a function signature, or writing code in any statically-typed language. Make illegal states unrepresentable, brand semantic primitives, parse external data at boundaries, refuse to lie to the compiler, exhaust variants, derive from authoritative schemas.
recallReconstruct your recent working context from your own chat history, live state, and the shared record (user reports, prior fixes, incidents), then hand back a tight current-state brief. Use for 'recall my work on X', 'catch me up', 'what have I been working on', 'where did I leave off', before start
reflectSpawn three parallel review subagents over the active transcript, surface learnings, and route each to a concrete edit on an existing skill. Use when the user says reflect.
show-me-your-workKeep a reviewable decision trail for long-running or unattended work: a TSV log with one row per decision (what, why, evidence, result). Local by default; commit it when a reviewer needs the trail to trust the result. Use for /show-me-your-work, autonomous or multi-phase runs, or work a human review
teachExplain a body of work plainly so a person actually understands it. Runs the `how` and `why` skills and weaves what they find into one clear explanation. Use for 'teach me this', 'help me really understand X', 'explain this change or subsystem to me'.
technical-writingLayered technical-writing standard: Diátaxis structure, Google developer style sentences, STE instruction rules, Global English syntax. Use for /technical-writing or when writing or reviewing docs, RFCs, readmes, PR descriptions, or commit messages.
typescript-best-practicesTypeScript best practices. Use when reading or editing any .ts or .tsx file.
uncomplectPressure-test a stateful system or replacement design through Rich Hickey's simplicity and complection, Greg Young's deletability, Ousterhout's deep modules, DDD boundaries, typed effects, and explicit lifecycle modeling. Use when the user asks "what would Rich Hickey do", "optimize for deletion", "
unslopCut AI tells from any writing. Must always apply.
whyUse when the user asks to investigate why code is built the way it is: 'why does X work this way', 'why we picked Y', design rationale, regressions, or postmortems. Not for explaining a single error or a quick question. Queries each available evidence source (git and PRs, issues, docs, team chat) in
grugComplexity review and simplification. Use when code, a plan, or a design looks over-engineered, too clever, or hard to follow, or when the user wants a simplicity second opinion.
Core skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques
15 skills · hooks
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3 skills · 1 command · 1 agent
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1 MCP server
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Claude Code skill for creating and presenting Slidev slidedecks
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12 skills · 1 MCP server · hooks
This page updates itself from your repo. Add the badge to your README, or get it Featured to pin it above the organic results with a followed link to your site.