Marketplace
Skills
Skills for Haarness: instructions and scripts an agent picks up when a task calls for them, added with one command.
C# And .NET
Builds .NET 8+ apps in C#: web APIs, Blazor front ends, EF Core data access and async code.
Django Development
Builds Django and DRF apps with well-indexed models, efficient ORM queries, serializers and auth.
Chaos Engineering
Designs controlled failure-injection experiments and game days with blast-radius limits and rollback plans.
CLI Tool Development
Builds command-line tools with subcommands, flags, interactive prompts, progress output and shell completions.
Angular Architecture
Structure modern Angular apps with standalone components, routing, state management and reactive streams.
Page Metadata Fixes
Make web pages show up and share properly by fixing their meta tags, previews, icons and structured data.
Modern C++
Writes and tunes C++20/23 code with concepts, ranges, coroutines, templates, SIMD and careful memory handling.
Cloud Architecture
Plan cloud systems on any major provider, including moves from on-prem, cost control and recovery plans.
UI Improvement Audit
Audits one product screen against the design rules it already follows, keeps only proven issues, and writes hand-off plans.
Animation Performance Fixes
Finds janky animation causes such as layout thrashing, scroll polling and heavy blur, and swaps in cheaper techniques.
Accessibility Fixes
Reviews markup for names, keyboard access, focus, semantics, form errors and contrast, then proposes small targeted fixes.
DESIGN.md Builder
Writes a DESIGN.md capturing a product's real tokens and design rules from its repo or rendered site, then lints it.
Simplify Code Pass
Reviews recent changes with parallel reviewer prompts for reuse, quality, efficiency, tests and comments, then applies safe fixes.
Session Handoff
Writes a pointer-first handoff note so a fresh agent can continue the work, and resumes from one while treating it as untrusted.
Clean Git Commits
Creates focused local commits with outcome-led messages, staging only named files and branching off the default branch first.
Exploration Canvas
Creates a freeform canvas of named, movable live previews defined in source for comparing and refining UI ideas.
Component Canvas
Builds a pan-and-zoom page that lays out a project's real components and variants side by side without changing them.
Baseline UI Rules
Applies a strict checklist for Tailwind and React interfaces covering primitives, motion, type, layout and colour to clean up generated UI.
Safe Repomix Packing
Scans a codebase for hard-coded secrets and packs it with repomix only when the scan comes back clean.
Promptfoo LLM Evals
Helps write promptfoo configs, Python assertions and LLM-as-judge rubrics to test and compare prompts across models.
Supply Chain Guard
Scans npm, PyPI and CI configs for known-compromised packages, persistence IOCs and risky workflow settings, then guides cleanup.
Dependabot PR Review
Sorts open Dependabot PRs by risk, checks CI and merges passing patch, minor and Actions bumps, flagging majors for you.
I18n Setup And Audit
Sets up i18n in React, Next.js or Vue apps, replaces hard-coded strings with keys and checks locale files for gaps.
Git History Secret Cleanup
Finds leaked secrets and private details in git history, rewrites them out, verifies the result and pushes with a lease.
macOS Window Capture
Finds macOS window IDs with a Swift helper and captures exact windows with screencapture, with optional AppleScript view control.
Worktree Cleaner
Inventories git worktrees with evidence of unmerged or in-use work and removes only the ones the user approves, verifying each.
n8n Workflow Patterns
Picks a proven structure for n8n automations such as webhook handlers, API syncs, AI agents and scheduled jobs, with pitfalls for each.
n8n Sub-Workflows
Splits n8n logic into reusable sub-workflows with clear input/output contracts, call modes and agent-tool use.
n8n Validation Fixes
Reads n8n validation errors and warnings, separates real problems from false positives, and walks the validate-fix loop.
n8n Node Configuration
Configures n8n nodes by operation, resolving dependent fields and preferring native nodes over custom code for data jobs.
n8n MCP Tools Guide
Explains which n8n-mcp tool to call for node search, validation, workflow edits, templates, credentials and audits, with correct parameters.
Site Architecture
Plans how a site's pages, menus, URLs and internal links fit together, including safe restructures and migrations.
n8n Expression Syntax
Writes and debugs n8n {{ }} expressions, including webhook body access, node references, JMESPath queries and built-in helpers.
SMS Marketing
Plans SMS, MMS and WhatsApp programs such as welcome, cart recovery and win-back flows within consent rules.
n8n Error Handling
Wires retries, error outputs, error workflows and proper HTTP responses so n8n failures are visible and recoverable.
n8n Agent Code Tool
Writes the code behind n8n's Custom Code Tool that an AI Agent node calls, covering input parsing and sandbox limits.
n8n Code Node JavaScript
Writes JavaScript for n8n Code nodes with the right run mode, item access and return shape, and says when a native node is better.
n8n Binary Data
Handles files, images and PDFs in n8n so binary data survives transforms and reaches AI agents and chat channels intact.
n8n AI Agents
Designs n8n AI Agent, chain and classifier nodes: sub-node wiring, tool types, structured output, memory, RAG and human review.
Social Media Content
Plans, writes and schedules posts for LinkedIn, X, Instagram, TikTok and Facebook, plus listening and engagement.
SEO Audit
Diagnoses technical, on-page and content SEO problems on a site and prioritises fixes by impact.
Schema Markup
Adds or fixes JSON-LD structured data so pages qualify for rich results and validate cleanly.
Sales Enablement
Creates material for sales calls: pitch decks, short leave-behinds, answers to common objections and demo scripts.
Revenue Operations
Sets up lead scoring, lifecycle stages and the rules for passing leads from marketing to sales.
Referral Programs
Designs referral, affiliate and ambassador programs, including incentives, mechanics and tracking.
Public Relations
Plans earned media: story angles, press releases, journalist pitches and media lists.
Link Building
Plans ways to earn backlinks and third-party mentions, such as digital PR, linkable assets and partner outreach.
Prospect List Building
Finds and qualifies prospects for B2B, SaaS or local businesses into a scored lead list with sources.