johnefemer

200 mods across 1 repository, 4 stars between them.

ab-test-setup

01

johnefemer/skillfish

Skill Claude CodeCodex

When the user wants to plan, design, or implement an A/B test or experiment. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy.

not rated 4 4d ago A 49 tokens

johnefemer/skillfish

Skill Claude CodeCodex

Web accessibility: WCAG 2.2 AA/AAA compliance, ARIA patterns, keyboard navigation, screen reader testing, automated auditing with axe-core, and remediation.

not rated 4 4d ago A 0 tokens

ad-creative

03

johnefemer/skillfish

Skill Claude CodeCodex

When the user needs to generate, iterate, or scale ad creative for paid advertising. Use when they say 'write ad copy,' 'generate headlines,' 'create ad variations,' 'bulk creative,' 'iterate on ads.

not rated 4 4d ago A 47 tokens

agent-designer

04

johnefemer/skillfish

Skill Claude CodeCodex

Tier: POWERFUL Category: Engineering Tags: AI agents, architecture, system design, orchestration, multi-agent systems.

not rated 4 4d ago A 0 tokens

agent-protocol

05

johnefemer/skillfish

Skill Claude CodeCodex

Inter-agent communication protocol for C-suite agent teams. Defines invocation syntax, loop prevention, isolation rules, and response formats.

not rated 4 4d ago A 28 tokens

agile-product-owner

07

johnefemer/skillfish

Skill Claude CodeCodex

Agile product ownership for backlog management and sprint execution. Covers user story writing, acceptance criteria, sprint planning, and velocity tracking.

not rated 4 4d ago A 31 tokens

johnefemer/skillfish

Skill Claude CodeCodex

Teach AI to review like your team: custom review checklists, tone calibration, org-specific patterns, and AI-assisted code review workflows.

not rated 4 4d ago A 0 tokens

ai-engineer

09

johnefemer/skillfish

Skill Claude CodeCodex

Build production AI applications: LLM integration, function calling, streaming, embedding pipelines, guardrails, cost optimization, and evaluation.

not rated 4 4d ago A 0 tokens

ai-seo

10

johnefemer/skillfish

Skill Claude CodeCodex

Optimize content to get cited by AI search engines — ChatGPT, Perplexity, Google AI Overviews, Claude, Gemini, Copilot.

not rated 4 4d ago A 33 tokens

analytics-tracking

11

johnefemer/skillfish

Skill Claude CodeCodex

Set up, audit, and debug analytics tracking implementation — GA4, Google Tag Manager, event taxonomy, conversion tracking, and data quality.

not rated 4 4d ago A 32 tokens

angular-architect

12

johnefemer/skillfish

Skill Claude CodeCodex

Angular architecture: standalone components, signals, NgRx/signal store, lazy loading, micro-frontends, testing with Jest/Cypress, and enterprise patterns.

not rated 4 4d ago A 0 tokens

johnefemer/skillfish

Skill Claude CodeCodex

API rate limiting design: token bucket, leaky bucket, fixed and sliding windows, quota policies, 429 behavior, and multi-tenant enforcement.

not rated 4 4d ago A 0 tokens

johnefemer/skillfish

Skill Claude CodeCodex

App Store Optimization toolkit for researching keywords, optimizing metadata, and tracking mobile app performance on Apple App Store and Google Play Store.

not rated 4 4d ago A 30 tokens

atlassian-admin

17

johnefemer/skillfish

Skill Claude CodeCodex

Atlassian Administrator for managing and organizing Atlassian products, users, customization of the Atlassian suite, permissions, security, integrations, system configuration.

not rated 4 4d ago A 36 tokens

atlassian-templates

18

johnefemer/skillfish

Skill Claude CodeCodex

Atlassian Template and Files Creator/Modifier expert for creating, modifying, and managing Jira and Confluence templates, blueprints, custom layouts, reusable components.

not rated 4 4d ago A 37 tokens

johnefemer/skillfish

Skill Claude CodeCodex

Design AWS architectures for startups using serverless patterns and IaC templates. Use when asked to design serverless architecture, create CloudFormation templates, optimize AWS costs.

not rated 4 4d ago A 37 tokens

board-deck-builder

20

johnefemer/skillfish

Skill Claude CodeCodex

Assembles comprehensive board and investor update decks by pulling perspectives from all C-suite roles.

not rated 4 4d ago A 23 tokens

board-meeting

21

johnefemer/skillfish

Skill Claude CodeCodex

Multi-agent board meeting protocol for strategic decisions. Runs a structured 6-phase deliberation: context loading, independent C-suite contributions (isolated, no cross-pollination).

not rated 4 4d ago A 0 tokens

brand-guidelines

22

johnefemer/skillfish

Skill Claude CodeCodex

When the user wants to apply, document, or enforce brand guidelines for any product or company. Also use when the user mentions 'brand guidelines,' 'brand colors,' 'typography,' 'logo usage.

not rated 4 4d ago A 44 tokens

build-engineer

23

johnefemer/skillfish

Skill Claude CodeCodex

Build engineering: reproducible builds, dependency caching, monorepo build graphs, artifact pipelines, release automation, and CI performance tuning.

not rated 4 4d ago A 0 tokens

business-analyst

24

johnefemer/skillfish

Skill Claude CodeCodex

Business analysis: requirements elicitation, user story mapping, process modeling (BPMN), gap analysis, feasibility studies, and stakeholder communication.

not rated 4 4d ago A 0 tokens

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: