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Library Skill.md library

Skill.md files: teach Claude once, not every chat.

Each one names the GitHub repo it came from, so you can check exactly what it tells your AI to do.

All Skill.md files

274990 Skill.md files

Skill.md
principle-encode-lessons-in-structure/
  • SKILL.md
---
name: principle-encode-lessons-in-structure
description: Apply 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.
---
Skill.md
principle-experience-first/
  • SKILL.md
---
name: principle-experience-first
description: Apply when product, UX, or feature-scope tradeoffs come up. Choose user delight over implementation convenience; ship fewer polished features over more rough ones.
---
Skill.md
principle-explain-the-number/
  • SKILL.md
---
name: principle-explain-the-number
description: Apply before you trust, report, or act on a number you measured: a speedup, a regression, a throughput, a latency, or an eval result. Find what limits it, and rule out that it measured something other than the work you think.
---
Skill.md
principle-fix-root-causes/
  • SKILL.md
---
name: principle-fix-root-causes
description: Apply 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.
---
Skill.md
principle-foundational-thinking/
  • SKILL.md
---
name: principle-foundational-thinking
description: Apply 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.
---
Skill.md
principle-guard-the-context-window/
  • SKILL.md
---
name: principle-guard-the-context-window
description: Apply 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.
---
Skill.md
principle-laziness-protocol/
  • SKILL.md
---
name: principle-laziness-protocol
description: Apply 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.
---
Skill.md
principle-migrate-callers-then-delete-legacy-apis/
  • SKILL.md
---
name: principle-migrate-callers-then-delete-legacy-apis
description: Apply 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.
---
Skill.md
principle-minimize-reader-load/
  • SKILL.md
---
name: principle-minimize-reader-load
description: Apply 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.
---
Skill.md
principle-model-the-domain/
  • SKILL.md
---
name: principle-model-the-domain
description: Apply 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.
---
Skill.md
principle-never-block-on-the-human/
  • SKILL.md
---
name: principle-never-block-on-the-human
description: Apply 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.
---
Skill.md
principle-outcome-oriented-execution/
  • SKILL.md
---
name: principle-outcome-oriented-execution
description: Apply during planned rewrites and migrations with explicit phase boundaries. Converge on the target architecture; don't preserve smooth intermediate states with throwaway compatibility code.
---
Skill.md
principle-prove-it-works/
  • SKILL.md
---
name: principle-prove-it-works
description: Apply 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.'
---
Skill.md
principle-redesign-from-first-principles/
  • SKILL.md
---
name: principle-redesign-from-first-principles
description: Apply 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.
---
Skill.md
principle-separate-before-serializing-shared-state/
  • SKILL.md
---
name: principle-separate-before-serializing-shared-state
description: Apply 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.
---
Skill.md
principle-sequence-verifiable-units/
  • SKILL.md
---
name: principle-sequence-verifiable-units
description: Apply 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.
---
Skill.md
principle-subtract-before-you-add/
  • SKILL.md
---
name: principle-subtract-before-you-add
description: Apply when sequencing an addition, refactor, or rewrite. Remove dead code, redundant validators, and stub references first, then build on the simpler base.
---
Skill.md
principle-test-behavior-not-implementation/
  • SKILL.md
---
name: principle-test-behavior-not-implementation
description: Apply 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.
---
Skill.md
principle-type-system-discipline/
  • SKILL.md
---
name: principle-type-system-discipline
description: Apply 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.
---
Skill.md
recall/
  • SKILL.md
---
name: recall
description: Reconstruct 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 starting or resuming work.
---

recall

cursor

Skill.md
reflect/
  • SKILL.md
---
name: reflect
description: Spawn 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.
---

reflect

cursor

Skill.md
setup-pstack/
  • SKILL.md
---
name: setup-pstack
description: Configure which models pstack uses per role and at what reasoning budget. Detects your available models and writes an always-applied rule that overrides the skill defaults. Use for /setup-pstack, "configure pstack models", "pstack budget", or changing pstack's model choices.
---

setup-pstack

cursor

Skill.md
show-me-your-work/
  • SKILL.md
---
name: show-me-your-work
description: Keep 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 reviews after stepping away.
---

show-me-your-work

cursor

Skill.md
swarm/
  • SKILL.md
---
name: swarm
description: Fan out N parallel workers, drain them, and return one report. Use for /swarm, 'swarm this', or parallel coverage, races, gauntlets, and exploration.
---

swarm

cursor