Pp Pop

Pop — Printing Press CLI

Prerequisites: Install the CLI

This skill drives the pop-pp-cli binary. You must verify the CLI is installed before invoking any command from this skill. If it is missing, install it first:

1. Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows:

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

2. Verify: pop-pp-cli --version
3. Ensure the reported install directory is on $PATH for the agent/runtime that will invoke this skill.

If the npx install fails (no Node, offline, etc.), fall back to a direct Go install (requires Go 1.26.6 or newer):

go install github.com/mvanhorn/printing-press-library/library/payments/pop/cmd/pop-pp-cli@latest

If --version reports "command not found" after install, the runtime cannot see the binary directory on $PATH. Do not proceed with skill commands until verification succeeds.

Command Reference

create-pdf — Create branded PDF invoices and optionally email them.

• pop-pp-cli create-pdf — Generate a branded PDF invoice. Depending on account setup and payload, POP may return a direct file, a URL, or a...

create-ubl — Create PEPPOL UBL invoices and optionally submit them to the network.

• pop-pp-cli create-ubl — Generate a PEPPOL BIS / UBL invoice and optionally submit it through POP's PEPPOL integration.

create-xml — Create Italian FatturaPA XML invoices and optionally submit them to SdI.

• pop-pp-cli create-xml — Generate an Italian FatturaPA XML document and optionally submit it to SdI. The data object must follow POP's...

peppol — Manage PEPPOL document workflows

• pop-pp-cli peppol get-document — Retrieve a PEPPOL document from POP by UUID and optional zone.

sdi — Manage SdI document workflows

• pop-pp-cli sdi get-invoice-status — Read POP's recorded SdI notifications for a submitted invoice UUID.
• pop-pp-cli sdi get-sdi-document — Retrieve a stored SdI document by UUID.
• pop-pp-cli sdi preserve-sdi-document — Archive an accepted SdI document in POP's long-term storage.
• pop-pp-cli sdi verify-sdi-document — Validate a Base64-encoded SdI XML document before submission.

Finding the right command

When you know what you want to do but not which command does it, ask the CLI directly:

pop-pp-cli which "<capability in your own words>"

which resolves a natural-language capability query to the best matching command from this CLI's curated feature index. Exit code 0 means at least one match; exit code 2 means no confident match — fall back to --help or use a narrower query.

Auth Setup

Run pop-pp-cli auth setup to print the URL and steps for getting a key (add --launch to open the URL). Then set:

export POP_API_KEY="<your-key>"

Or persist it in ~/.config/pop-pp-cli/config.toml.

Run pop-pp-cli doctor to verify setup.

Agent Mode

Add --agent to any command. Expands to: --json --compact --no-input --no-color --yes.

• Pipeable — JSON on stdout, errors on stderr

• Filterable — --select keeps a subset of fields. Dotted paths descend into nested structures; arrays traverse element-wise. Critical for keeping context small on verbose APIs:

  pop-pp-cli create-pdf --agent --select id,name,status
  

• Previewable — --dry-run shows the request without sending

• Non-interactive — never prompts, every input is a flag

• Explicit retries — use --idempotent only when an already-existing create should count as success

Agent Feedback

When you (or the agent) notice something off about this CLI, record it:

pop-pp-cli feedback "the --since flag is inclusive but docs say exclusive"
pop-pp-cli feedback --stdin < notes.txt
pop-pp-cli feedback list --json --limit 10

Entries are stored locally at ~/.pop-pp-cli/feedback.jsonl. They are never POSTed unless POP_FEEDBACK_ENDPOINT is set AND either --send is passed or POP_FEEDBACK_AUTO_SEND=true. Default behavior is local-only.

Write what surprised you, not a bug report. Short, specific, one line: that is the part that compounds.

Output Delivery

Every command accepts --deliver <sink>. The output goes to the named sink in addition to (or instead of) stdout, so agents can route command results without hand-piping. Three sinks are supported:

Unknown schemes are refused with a structured error naming the supported set. Webhook failures return non-zero and log the URL + HTTP status on stderr.

Named Profiles

A profile is a saved set of flag values, reused across invocations. Use it when a scheduled agent calls the same command every run with the same configuration - HeyGen's "Beacon" pattern.

pop-pp-cli profile save briefing --json
pop-pp-cli --profile briefing create-pdf
pop-pp-cli profile list --json
pop-pp-cli profile show briefing
pop-pp-cli profile delete briefing --yes

Explicit flags always win over profile values; profile values win over defaults. agent-context lists all available profiles under available_profiles so introspecting agents discover them at runtime.

Exit Codes

Argument Parsing

Parse $ARGUMENTS:

1. Empty, help, or --help → show pop-pp-cli --help output
2. Starts with install → ends with mcp → MCP installation; otherwise → see Prerequisites above
3. Anything else → Direct Use (execute as CLI command with --agent)

MCP Server Installation

1. Install the MCP server:

   go install github.com/mvanhorn/printing-press-library/library/payments/pop/cmd/pop-pp-mcp@latest
   

2. Register with Claude Code:

   claude mcp add pop-pp-mcp -- pop-pp-mcp
   

3. Verify: claude mcp list

Direct Use

1. Check if installed: which pop-pp-cli If not found, offer to install (see Prerequisites at the top of this skill).
2. Match the user query to the best command from the Unique Capabilities and Command Reference above.
3. Execute with the --agent flag:

   pop-pp-cli <command> [subcommand] [args] --agent
   

4. If ambiguous, drill into subcommand help: pop-pp-cli <command> --help.