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marginalrevolution

README.md

Marginal Revolution CLI

Read and filter Marginal Revolution from the command line through its public RSS feed.

This CLI was regenerated with CLI Printing Press 4.2.1. It keeps the generated v4.2 agent/MCP scaffolding and adds RSS-native helper commands for posts, authors, categories, and outbound links.

Created by @hinuri (Nuri Chang).

Install

The recommended path installs both the marginalrevolution-pp-cli binary and the pp-marginalrevolution agent skill (Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, and other agents supported by the upstream skills CLI) in one shot:

npx -y @mvanhorn/printing-press-library install marginalrevolution

For CLI only (no skill):

npx -y @mvanhorn/printing-press-library install marginalrevolution --cli-only

For skill only — installs the skill into the same agents as the default command above, but skips the CLI binary (use this to update or reinstall just the skill):

npx -y @mvanhorn/printing-press-library install marginalrevolution --skill-only

To constrain the skill install to one or more specific agents (repeatable — agent names match the skills CLI):

npx -y @mvanhorn/printing-press-library install marginalrevolution --agent claude-code
npx -y @mvanhorn/printing-press-library install marginalrevolution --agent claude-code --agent codex

Without Node (Go fallback)

If npx isn't available (no Node, offline), install the CLI directly via Go (requires Go 1.26.4 or newer):

go install github.com/mvanhorn/printing-press-library/library/media-and-entertainment/marginalrevolution/cmd/marginalrevolution-pp-cli@latest

This installs the CLI only — no skill.

Pre-built binary

Download a pre-built binary for your platform from the latest release. On macOS, clear the Gatekeeper quarantine: xattr -d com.apple.quarantine <binary>. On Unix, mark it executable: chmod +x <binary>.

Install for Hermes

Install the CLI binary first. The installer writes binaries to a per-user managed bin directory by default: $HOME/.local/bin on macOS/Linux and %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows.

npx -y @mvanhorn/printing-press-library install marginalrevolution --cli-only

Then install the focused Hermes skill.

From the Hermes CLI:

hermes skills install mvanhorn/printing-press-library/cli-skills/pp-marginalrevolution --force

Inside a Hermes chat session:

/skills install mvanhorn/printing-press-library/cli-skills/pp-marginalrevolution --force

Restart the Hermes session or gateway if the newly installed skill is not visible immediately.

Install for OpenClaw

Install both the CLI binary and the focused OpenClaw skill. The installer defaults binaries to a per-user bin directory ($HOME/.local/bin on macOS/Linux, %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows):

npx -y @mvanhorn/printing-press-library install marginalrevolution --agent openclaw

Restart the OpenClaw session or gateway if the newly installed skill is not visible immediately.

Use with Claude Desktop

This CLI ships an MCPB bundle — Claude Desktop's standard format for one-click MCP extension installs (no JSON config required).

To install:

  1. Download the .mcpb for your platform from the latest release.
  2. Double-click the .mcpb file. Claude Desktop opens and walks you through the install.

Requires Claude Desktop 1.0.0 or later. Pre-built bundles ship for macOS Apple Silicon (darwin-arm64) and Windows (amd64, arm64); for other platforms, use the manual config below.

Manual JSON config (advanced)

If you can't use the MCPB bundle (older Claude Desktop, unsupported platform), install the MCP binary and configure it manually.

Install the MCP binary from this CLI's published public-library entry or pre-built release.

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "marginalrevolution": {
      "command": "marginalrevolution-pp-mcp"
    }
  }
}

Quick Start

1. Install

See Install above.

2. Verify Setup

marginalrevolution-pp-cli doctor

This checks your configuration.

3. Try Your First Command

marginalrevolution-pp-cli latest --limit 5

Usage

Run marginalrevolution-pp-cli --help for the full command reference and flag list.

Commands

feed

Manage feed

  • marginalrevolution-pp-cli feed get - Returns the current public RSS feed. The feed is XML/RSS and does not require authentication.

RSS-native helpers

  • marginalrevolution-pp-cli latest - list recent posts with dates, authors, categories, comment counts, and canonical URLs
  • marginalrevolution-pp-cli search <query> - search current-feed title, excerpt, body text, author, and category text
  • marginalrevolution-pp-cli read <url|guid|title> - read the body text for a post currently present in the feed
  • marginalrevolution-pp-cli links - extract outbound cited links from recent posts
  • marginalrevolution-pp-cli categories - show current-feed category counts
  • marginalrevolution-pp-cli authors - show current-feed author counts

Scope

The public RSS feed is available to command-line clients. Marginal Revolution's WordPress JSON API and normal site-search URL returned Cloudflare browser challenges during implementation, so this CLI intentionally keeps search scoped to posts currently present in the feed.

Output Formats

# Human-readable table (default in terminal, JSON when piped)
marginalrevolution-pp-cli latest

# JSON for scripting and agents
marginalrevolution-pp-cli latest --json

# Filter to specific fields
marginalrevolution-pp-cli feed --json --select id,name,status

# Dry run — show the request without sending
marginalrevolution-pp-cli feed --dry-run

# Agent mode — JSON + compact + no prompts in one flag
marginalrevolution-pp-cli search ai --agent

Agent Usage

This CLI is designed for AI agent consumption:

  • Non-interactive - never prompts, every input is a flag
  • Pipeable - --json output to stdout, errors to stderr
  • Filterable - --select id,name returns only fields you need
  • Previewable - --dry-run shows the request without sending
  • Read-only by default - this CLI does not create, update, delete, publish, send, or mutate remote resources
  • Offline-friendly - sync/search commands can use the local SQLite store when available
  • Agent-safe by default - no colors or formatting unless --human-friendly is set

Exit codes: 0 success, 2 usage error, 3 not found, 5 API error, 7 rate limited, 10 config error.

Health Check

marginalrevolution-pp-cli doctor

Verifies configuration and connectivity to the API.

Configuration

Config file: ~/.config/marginal-revolution-pp-cli/config.toml

Static request headers can be configured under headers; per-command header overrides take precedence.

Troubleshooting

Not found errors (exit code 3)

  • Check the resource ID is correct
  • Run the list command to see available items

Generated by CLI Printing Press