Call x-callback-url schemes from the CLI and receive responses synchronously. Use when invoking macOS app URL schemes that have no CLI but support x-callback-url (Things, Bear, OmniFocus, etc.) and you need to capture the result.
Invokes macOS app URL schemes via x-callback-url and synchronously returns their results.
npx claudepluginhub bendrucker/claudeThis skill is limited to using the following tools:
Send x-callback-url requests from the command line and receive responses synchronously.
xcall is a Swift CLI that builds into a macOS .app bundle. The .app is required because macOS only delivers URL scheme callbacks to registered applications. On first use, run.sh compiles the source and registers the callback scheme (xcall-claude://) with Launch Services.
${CLAUDE_PLUGIN_ROOT}/scripts/run.sh "<url>"
stdout: x-success query string on success
stderr: x-error query string or timeout message
Exit codes: 0 = success, 1 = error, 2 = cancel
# Add a todo, get its ID back
${CLAUDE_PLUGIN_ROOT}/scripts/run.sh "things:///add?title=Buy%20milk"
# stdout: x-things-id=ABC123
# Update a todo, confirm it applied
${CLAUDE_PLUGIN_ROOT}/scripts/run.sh "things:///update?id=ABC123&auth-token=TOKEN&completed=true"
# stdout: x-things-id=ABC123
# Batch create via JSON
${CLAUDE_PLUGIN_ROOT}/scripts/run.sh "things:///json?data=..."
# stdout: x-things-ids=["ABC123","DEF456"]
# Create a note and get its ID
${CLAUDE_PLUGIN_ROOT}/scripts/run.sh "bear://x-callback-url/create?title=Meeting%20Notes&text=..."
# stdout: identifier=ABC-123&title=Meeting%20Notes
The x-callback-url protocol defines three callback parameters:
errorCode and errorMessagexcall appends these automatically using its registered xcall-claude:// scheme.
Any macOS app that supports x-callback-url and lacks a CLI:
x-things-id / x-things-idsApps with their own CLI (e.g., Shortcuts via shortcuts run) don't need xcall — use the CLI directly.
scripts/main.swift (~100 lines)scripts/build.sh compiles to scripts/xcall.app/com.bendrucker.xcall-claudexcall-claude://Info.plist: CFBundleTypeRole=Editor, LSUIElement=true, LSBackgroundOnly=truemain.swift is newer than the binaryExpert guidance for Next.js Cache Components and Partial Prerendering (PPR). **PROACTIVE ACTIVATION**: Use this skill automatically when working in Next.js projects that have `cacheComponents: true` in their next.config.ts/next.config.js. When this config is detected, proactively apply Cache Components patterns and best practices to all React Server Component implementations. **DETECTION**: At the start of a session in a Next.js project, check for `cacheComponents: true` in next.config. If enabled, this skill's patterns should guide all component authoring, data fetching, and caching decisions. **USE CASES**: Implementing 'use cache' directive, configuring cache lifetimes with cacheLife(), tagging cached data with cacheTag(), invalidating caches with updateTag()/revalidateTag(), optimizing static vs dynamic content boundaries, debugging cache issues, and reviewing Cache Component implementations.
Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.