ponytail-debt
DietrichGebert/ponytail158k
DietrichGebert/ponytail158kponytail-debt
Harvest every ponytail: shortcut comment into one debt ledger, so deferrals get tracked instead of forgotten. One-shot report.
AI & agents
Agent Skills
5368 Skills, ranked by repository stars. Categories are generated automatically and are for reference only.
AllAI & agents1707Docs & office662Frontend572Testing528Projects & collaboration342Databases & data300DevOps & cloud291Science289Code quality & review235Security225Browser automation217
ponytail-debtDietrichGebert/ponytail158k
DietrichGebert/ponytail158kponytail-debt
List every `ponytail:` shortcut comment as a debt ledger. One-shot report, changes nothing. Use for "ponytail debt", "what did ponytail defer", "list the shortcuts", /ponytail-debt.
AI & agents
ponytail-gainDietrichGebert/ponytail158k
DietrichGebert/ponytail158kponytail-gain
Show ponytail measured impact as a scoreboard: less code, less cost, more speed, from the agentic benchmark averages. One-shot display.
AI & agents
ponytail-gainDietrichGebert/ponytail158k
DietrichGebert/ponytail158kponytail-gain
Show ponytail's measured savings (code, cost, speed) from the benchmark. One-shot display. Use for /ponytail-gain, "what does ponytail save", "ponytail impact".
AI & agents
ponytail-helpDietrichGebert/ponytail158k
DietrichGebert/ponytail158kponytail-help
Quick reference for ponytail levels, skills and commands. One-shot display. Use for /ponytail-help, "ponytail help", "how do I use ponytail".
AI & agents
ponytail-helpDietrichGebert/ponytail158k
DietrichGebert/ponytail158kponytail-help
Quick reference for ponytail's modes, skills, and commands. One-shot display.
AI & agents
ponytail-reviewDietrichGebert/ponytail158k
DietrichGebert/ponytail158kponytail-review
Quality review of a change: is the logic right, is it safe, does it hold under real load, is risky code tested, is it fast enough, and is every line needed. Reads the connected code, not only the diff. Each finding is explained in plain English. Use for "review this", "code review", "review the last commit", "review my PR", "is this over-engineered", /ponytail-review.
Code quality & review
ponytail-reviewDietrichGebert/ponytail158k
DietrichGebert/ponytail158kponytail-review
Quality review of a diff: bugs, security, real load, missing tests, speed, and what to delete. Each finding says what goes wrong and how to fix it.
Testing
api-and-interface-design
addyosmani/agent-skills103k
addyosmani/agent-skills103kapi-and-interface-design
Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or establishing boundaries between frontend and backend.
Frontend
browser-testing-with-devtoolsaddyosmani/agent-skills103k
addyosmani/agent-skills103kbrowser-testing-with-devtools
Tests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browser. Use when you need to inspect the DOM, capture console errors, analyze network requests, profile performance, or verify visual output with real runtime data. Requires the chrome-devtools MCP server to be configured.
Browser automation
ci-cd-and-automationaddyosmani/agent-skills103k
addyosmani/agent-skills103kci-cd-and-automation
Automates CI/CD pipeline setup. Use when setting up or modifying build and deployment pipelines. Use when you need to automate quality gates, configure test runners in CI, or establish deployment strategies.
Testing
code-review-and-qualityaddyosmani/agent-skills103k
addyosmani/agent-skills103kcode-review-and-quality
Conducts multi-axis code review. Use before merging any change. Use when reviewing code written by yourself, another agent, or a human. Use when you need to assess code quality across multiple dimensions before it enters the main branch. Use when asked to review a diff or a pull request, even when the diff is pasted inline.
Code quality & review
code-simplificationaddyosmani/agent-skills103k
addyosmani/agent-skills103kcode-simplification
Simplifies code for clarity. Use when refactoring code for clarity without changing behavior. Use when code works but is harder to read, maintain, or extend than it should be. Use when reviewing code that has accumulated unnecessary complexity.
Code quality & review
constraint-driven-developmentaddyosmani/agent-skills103k
addyosmani/agent-skills103kconstraint-driven-development
Establishes a project's quality bar as a written contract and stops agents quietly lowering it. Interviews the user on which dimensions matter, supplies sane default thresholds when they have no number in mind, records everything in CONSTRAINTS.md, and watches the diff for a weakened bar — new @ts-ignore or eslint-disable suppressions, skipped or deleted tests, assertions stripped out, unimplemented stubs, thresholds edited down. Use when no quality bar is written down, when the user says "set up constraints" or "define our standards", when the user wants dimensions they care about — accessibility, web performance, coverage — set up as enforced constraints, when an agent keeps silencing checks or skipping tests to get to green, when you need a coverage or performance threshold and don't know what number to pick, or when an agent writes more code than anyone will read.
Testing
context-engineeringaddyosmani/agent-skills103k
addyosmani/agent-skills103kcontext-engineering
Optimizes agent context setup. Use when starting a new session, when agent output quality degrades, when switching between tasks, or when you need to configure rules files and context for a project.
AI & agents
debugging-and-error-recoveryaddyosmani/agent-skills103k
addyosmani/agent-skills103kdebugging-and-error-recovery
Guides systematic root-cause debugging. Use when tests fail, builds break, something that worked yesterday broke, behavior doesn't match expectations, or you encounter any unexpected error. Use when you need to figure out what broke and why — a systematic approach to finding and fixing the root cause rather than guessing.
Testing
deprecation-and-migrationaddyosmani/agent-skills103k
addyosmani/agent-skills103kdeprecation-and-migration
Manages deprecation and migration. Use when removing old systems, APIs, or features. Use when migrating users from one implementation to another. Use when migrating a database schema in production, such as renaming or dropping a column without downtime (expand/contract). Use when deciding whether to maintain or sunset existing code.
Databases & data
documentation-and-adrsaddyosmani/agent-skills103k
addyosmani/agent-skills103kdocumentation-and-adrs
Records decisions and documentation. Use when you need to document an architecture decision (ADR) or the reasoning behind a design choice, when changing public APIs, shipping features, or when you need to record context that future engineers and agents will need to understand the codebase.
Code quality & review
doubt-driven-developmentaddyosmani/agent-skills103k
addyosmani/agent-skills103kdoubt-driven-development
Subjects every non-trivial decision to a fresh-context adversarial review before it stands. Use when you want every assumption cross-examined before proceeding, when stress-testing a plan for hidden failure modes, when correctness matters more than speed, when working in unfamiliar code, when stakes are high (production auth, security-sensitive logic, a high-stakes migration, irreversible operations), or any time a confident output would be cheaper to verify now than to debug later.
Testing
frontend-ui-engineeringaddyosmani/agent-skills103k
addyosmani/agent-skills103kfrontend-ui-engineering
Builds production-quality, accessible, responsive user-facing UIs. Use when building or modifying interfaces and pages, creating components, implementing layouts, meeting WCAG accessibility requirements, managing state, or when the output needs to look and feel production-quality rather than AI-generated.
Frontend
git-workflow-and-versioningaddyosmani/agent-skills103k
addyosmani/agent-skills103kgit-workflow-and-versioning
Structures git workflow practices. Use when making any code change. Use when committing, branching, resolving conflicts, splitting uncommitted work in a messy working tree into clean atomic commits, opening or reviewing a pull request (PR), pushing to a remote, or when you need to organize work across multiple parallel streams. Use when cutting a release, choosing a semantic version bump, tagging, or writing a changelog.
Docs & office
idea-refineaddyosmani/agent-skills103k
addyosmani/agent-skills103kidea-refine
Refines raw ideas into sharp, actionable concepts through structured divergent and convergent thinking. Use when an idea is still vague, when you need to stress-test assumptions before committing to a plan, or when you want to expand options before converging on one. Triggers on "ideate", "refine this idea", or "stress-test my plan".
Testing
incremental-implementationaddyosmani/agent-skills103k
addyosmani/agent-skills103kincremental-implementation
Delivers changes incrementally in thin, verifiable slices. Use when implementing any feature or change that touches more than one file, or when picking up the next task from a plan. Use when rolling a change out behind a feature flag, when you're about to write a large amount of code at once, or when a task feels too big to land in one step.
AI & agents
interview-meaddyosmani/agent-skills103k
addyosmani/agent-skills103kinterview-me
Extracts what the user actually wants instead of what they think they should want. Achieves this through one-question-at-a-time interview until ~95% confidence about the underlying intent. Use when an ask is underspecified ("build me X" without "for whom" or "why now"), when the user explicitly invokes ("interview me", "grill me", "are we sure?", "stress-test my thinking"), or when you catch yourself silently filling in ambiguous requirements before any plan, spec, or code exists.
Testing