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Ásgeir Thor Johnson

@asgeirtj

asgeirtj@gmail.com

208 skills1 repository 70K

Skills (208)

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claude-in-chrome

FreeSummary

Automate Chrome tasks such as navigating pages, clicking buttons, and filling forms. Capture screenshots or GIF recordings, and inspect console logs, the messages a website produces, to review interactions and investigate problems.

  • Automating form entry and page navigation
  • Capturing screenshots of web pages
  • Recording browser steps as a GIF
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

design-sync

FreeSummary

Import an existing React component library into Claude Design, including its styles, usage references, and previews. This lets the design agent build screens and prototypes using the same components already maintained in the source project.

  • Importing an existing React design system into Claude Design
  • Creating prototypes with existing components and styles
  • Syncing component changes after an initial import
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

code-review

FreeSummary

Review code changes in a diff, pull request, branch, or file path to identify bugs and cleanup opportunities. Findings include file locations and concrete failure scenarios, with options to apply fixes or post comments.

  • Review uncommitted changes for bugs
  • Check a pull request or branch before merging
  • Find duplicated logic and unnecessary work
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

security-review

FreeSummary

Review pending code changes for newly introduced security vulnerabilities with clear exploitation paths. Focus on concrete, significant risks and filter likely false alarms, then report affected files, line numbers, severity, attack scenarios, and recommended fixes in Markdown.

  • Review a PR for newly introduced security vulnerabilities
  • Check authentication and authorization changes
  • Trace user input for injection risks
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

Convert an HTML slide deck into a PowerPoint file with editable text, shapes, and images. The skill handles font substitutions, imports speaker notes, and checks export warnings to help identify missing images or incorrectly captured slides.

  • Convert HTML slides into an editable PowerPoint deck
  • Replace custom fonts before exporting
  • Include speaker notes in a PowerPoint file
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

docx

FreeSummary

Create, read, and edit Word documents and templates, including image replacement, comments, and tracked changes that record revisions. The workflow also checks document structure and renders finished files for visual review.

  • Create a formatted Word report
  • Extract and reorganize text from Word files
  • Review edits with tracked changes and comments
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

pdf

FreeSummary

Read, create, and organize PDF files, including merging documents, splitting pages, extracting tables, and filling forms. It also covers password protection and OCR, which recognizes text in scanned pages for extraction or search.

  • Merge PDFs or split out selected pages
  • Extract PDF text and tables for reuse
  • Recognize text in scanned documents
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

setup-cowork

FreeSummary

Set up Cowork for everyday work through guided steps: choose plugins suited to a role, connect work tools, try a skill, and optionally save a writing voice profile for future drafts.

  • Getting started with Cowork
  • Choosing plugins suited to a job role
  • Connecting work tools and trying a skill
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

dataviz

FreeSummary

Create charts and dashboards with a consistent approach to chart selection, color validation, labels, and interaction. Includes a palette checker and accessibility rules for readable visualizations in both light and dark modes.

  • Choose a chart type that fits the data
  • Validate chart colors for color vision differences
  • Build charts for light and dark modes
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

Create or improve a project-specific skill with verified build, launch, and interaction steps. Package concise instructions with scripts or existing command-line tools so future agents can run and exercise the application.

  • Create a project-specific run skill
  • Verify setup and launch instructions
  • Build scripts that interact with the running app
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

plugin-authoring

FreeSummary

Build and debug mods that change Claude’s interface or behavior. Add panels, status messages, slash commands, or hooks that respond to prompts and tool calls, with guidance for file structure, type checks, and behavior tests.

  • Adding a live information panel
  • Displaying status messages and notifications
  • Creating slash commands
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

skill-creator

FreeSummary

Create and improve agent skills by defining tasks, writing instructions, and testing realistic requests. Compare outputs, success rates, time, and token use, then refine the skill and its description so it triggers appropriately.

  • Turn a recurring workflow into a reusable skill
  • Improve an existing SKILL.md using test feedback
  • Compare results with and without a skill
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

batch

FreeSummary

Coordinate large migrations, refactors, and bulk renames by splitting them into independent tasks. After plan approval, 5–30 agents work in separate Git worktrees, isolated working directories, then review, test, and open a pull request for each task.

  • Migrate code across many files
  • Refactor independent modules in parallel
  • Rename identifiers across directories
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

3d-object

FreeSummary

Create a 3D object with three.js, inspect it from every angle in an interactive viewer, and download it as OBJ + MTL or GLB for use in other 3D applications.

  • Create a 3D object and inspect it from every angle
  • Export a model for further editing in Blender
  • Review an object's silhouette and materials
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

claude-api

FreeSummary

Build Claude applications using guidance for the official Anthropic SDK. Choose an integration approach, implement streaming and tool use, and follow workflows for model migration, prompt audits, evaluation, and cost optimization.

  • Build a summarization app with Claude API
  • Choose how to run an agent with custom tools
  • Migrate existing code to a newer Claude model
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

verify

FreeSummary

Check whether a code change works by running the app and using its real interface. Exercise the intended flow and nearby error cases, capture outputs or screenshots, and report observed behavior with a clear verdict.

  • Checking changed behavior before committing code
  • Probing invalid inputs and repeated operations
  • Preparing verification reports with captured evidence
asgeirtj/system_prompts_leaks70KUpdated Oct 20, 2026

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