One search for your own team's files and the public ecosystem. See how real projects write their agent instructions, and bring the good ideas home.
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/poteto-mode/SKILL.md
Lauren Tan-inspired rigorous engineering mode for concise communication, deliberate decomposition, simple code, independent review when available, and runtime verification. Use for non-trivial engineering tasks or when the user asks for Poteto Mode/pstack-style rigor.
Often used withpoteto-helpsetup-pstackketchup-video
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-attack-the-premise/SKILL.md
Inventory who actually owns or exhibits the imbalance, then challenge the shared premise before writing another patch. Use when two or more fixes that share one premise have failed the same gate.
Often used withprinciple-explain-the-numberketchup-videosetup-pstack
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-boundary-discipline/SKILL.md
Validate and normalize at boundaries, trust internal invariants, and keep business logic free of adapter noise. Use when at parsing, framework, process, network, storage, or user-input boundaries.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-build-the-lever/SKILL.md
Prefer a script, codemod, generator, benchmark, or verifier that performs or proves the work repeatably over hand edits. Use when for repetitive, large, or verification-heavy work.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-encode-lessons-in-structure/SKILL.md
Turn recurring guidance into a type, lint, test, metadata flag, generator, runtime check, or skill so the system carries the lesson. Use when when the same corrective instruction appears more than once.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-exhaust-the-design-space/SKILL.md
Build a few materially different cheap prototypes and compare evidence before committing to one design. Use when for novel interactions or architecture with no strong precedent.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-experience-first/SKILL.md
Optimize for the end-user experience unless the cost violates an explicit constraint. Use when product, UX, API design, or feature-scope tradeoffs arise.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-explain-the-number/SKILL.md
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.
Often used withketchup-videoketchupin-your-own-words
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-fix-root-causes/SKILL.md
Reproduce the symptom, trace causality until one mechanism explains it, and fix that mechanism rather than compensating for downstream effects. Use when during debugging and incident repair.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-foundational-thinking/SKILL.md
Choose the core data structures, ownership, and sequencing first so downstream logic becomes simpler. Use when before writing logic, especially when state or concurrency is involved.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-guard-the-context-window/SKILL.md
Route bulk exploration to isolated workers or files and bring back compact evidence summaries, not raw floods. Use when when reads, logs, fan-out, or generated output threatens to dominate context.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-laziness-protocol/SKILL.md
Bias toward deletion and the smallest change that fully solves the problem. Use when considering adding code, abstractions, dependencies, or speculative features.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-make-operations-idempotent/SKILL.md
Design repeated execution to converge on the same correct end state rather than multiplying side effects. Use when for commands, lifecycle steps, retries, loops, or crash recovery.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-migrate-callers-then-delete-legacy-apis/SKILL.md
Move callers to the new shape and delete the old path in the same migration wave instead of carrying a compatibility layer. Use when when replacing an internal api.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-minimize-reader-load/SKILL.md
Reduce indirection, mutable scope, and one-caller abstractions until the causal path is easy to hold in one mind. Use when when code requires too many hops, wrappers, hidden states, or mental joins.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-model-the-domain/SKILL.md
Encode the domain in the right structure: state machine, typed model, table, registry, reducer, boundary, or collection instead of scattered conditionals. Use when when stateful logic accumulates branches or repeated shape assumptions.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-never-block-on-the-human/SKILL.md
Run the experiment or make the reversible best-effort change, then show the result. Ask only for genuine preference, authority, or irreversible decisions. Use when when a reversible empirical or implementation choice can be resolved with available tools.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-outcome-oriented-execution/SKILL.md
Converge on the target architecture rather than preserving temporary compatibility states as permanent complexity. Use when during planned migrations or rewrites with explicit phases.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-prove-it-works/SKILL.md
Verify the requested behavior against the real artifact or surface whenever possible; a proxy check only proves the proxy. Use when verifying changes, completing tasks, or claiming something is fixed.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
TheOnlyFusionCubeSkillTheOnlyFusionCube/potetos-for-everyone/skills/principle-redesign-from-first-principles/SKILL.md
Design the shape you would choose if the requirement had existed from day one, then migrate toward that shape. Use when when integrating a new requirement into a design that keeps fighting it.
Often used withprinciple-explain-the-numbersetup-pstackmake-bot-ui
Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.
CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.
A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.
