Agent skill

Pp Erank

by mvanhorn in mvanhorn/printing-press-library

Keyword Tool data from eRank, plus local scoring, drift, and listing-gap analysis for Etsy sellers.

Apache-2.0Auto-check: notes

Install Pp Erank

skills CLI

$ npx skills add mvanhorn/printing-press-library --skill pp-erank -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install mvanhorn/printing-press-library pp-erank --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cli-skills/pp-erank .claude/skills/pp-erank && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "pp-erank" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-erank into .claude/skills/pp-erank/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-erank", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-erank

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add mvanhorn/printing-press-library --skill pp-erank -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install mvanhorn/printing-press-library pp-erank --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .agents/skills && cp -r skills-src/cli-skills/pp-erank .agents/skills/pp-erank && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "pp-erank" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-erank into .agents/skills/pp-erank/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-erank", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add mvanhorn/printing-press-library --skill pp-erank -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install mvanhorn/printing-press-library pp-erank --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/cli-skills/pp-erank .cursor/skills/pp-erank && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "pp-erank" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-erank into .cursor/skills/pp-erank/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-erank", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/mvanhorn/printing-press-library.git --path cli-skills/pp-erank

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add mvanhorn/printing-press-library --skill pp-erank -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install mvanhorn/printing-press-library pp-erank --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/cli-skills/pp-erank .gemini/skills/pp-erank && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "pp-erank" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-erank into .gemini/skills/pp-erank/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-erank", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install mvanhorn/printing-press-library pp-erank

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add mvanhorn/printing-press-library --skill pp-erank -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .github/skills && cp -r skills-src/cli-skills/pp-erank .github/skills/pp-erank && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "pp-erank" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-erank into .github/skills/pp-erank/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-erank", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add mvanhorn/printing-press-library --skill pp-erank -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install mvanhorn/printing-press-library pp-erank --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/cli-skills/pp-erank .opencode/skills/pp-erank && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "pp-erank" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-erank into .opencode/skills/pp-erank/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-erank", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: pp-erank
GitHub stars: 2.1k
Token cost: ~4.7k tokens
SKILL.md length: 1,709 words
Files: 1
Skills in repo: 506
Repo updated: Oct 9, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Keyword Tool data from eRank, plus local scoring, drift, and listing-gap analysis for Etsy sellers.

Works in 3 steps: Install via the Printing Press… → Verify: erank-pp-cli --version → Ensure the reported install directory is…
Phrases: research dad mug on eRank
SKILL.md covers Prerequisites: Install the CLI, When to Use This CLI, Unique Capabilities and HTTP Transport, plus 13 more sections
Calls go, claude and npx

What it does

Pp Erank is an agent skill from mvanhorn/printing-press-library. Keyword Tool data from eRank, plus local scoring, drift, and listing-gap analysis for Etsy sellers. Trigger phrases: research dad mug on eRank, score an Etsy keyword, find eRank top listings, compare Etsy listing tags, use eRank, run eRank.

Its SKILL.md is about 4.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Official library of CLIs generated by the CLI Printing Press. Endorsed, tested, and community-contributed. The licence is Apache-2.0.

When your agent uses it

Phrases: research dad mug on eRank
Score an Etsy keyword
Find eRank top listings
Compare Etsy listing tags

Example prompts

“/pp-erank”

Requirements

Node.js
Pre-approved tools (allowed-tools): Read, Bash

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and…
Verify: erank-pp-cli --version
Ensure the reported install directory is on $PATH for the agent/runtime that will invoke this skill.

What it can do on your machine

Read from SKILL.md and the folder at commit 76de244. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
- Read
- Bash
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- go
- claude
- npx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Pp Erank loads about 4.7k tokens when it runs. Until then it costs about 65 tokens; SKILL.md has 1,709 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~65
When it runs · the whole SKILL.md, loaded when a task matches: ~4.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
```
allowed-tools: Read, Bash
```

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from mvanhorn/printing-press-library at commit 76de244, republished under its Apache-2.0 licence (© mvanhorn). 1,709 words, ~4,691 tokens.

Download SKILL.mdSave it as .claude/skills/pp-erank/SKILL.md (or your agent's skills folder).

name: pp-erank
description: Keyword Tool data from eRank, plus local scoring, drift, and listing-gap analysis for Etsy sellers. Trigger phrases: `research dad mug on eRank`, `score an Etsy keyword`, `find eRank top listings`, `compare Etsy listing tags`, `use eRank`, `run eRank`.
allowed-tools: Read, Bash
author: horknfbr
license: Apache-2.0
argument-hint: <command> [args] | install cli|mcp

<!-- GENERATED FILE — DO NOT EDIT.
     This file is a verbatim mirror of library/marketing/erank/SKILL.md,
     regenerated post-merge by tools/generate-skills/. Hand-edits here are
     silently overwritten on the next regen. Edit the library/ source instead.
     See the repository agent guide, section "Generated artifacts: registry.json, cli-skills/". -->

eRank — Printing Press CLI

Prerequisites: Install the CLI

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

Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows:
bash
```
npx -y @mvanhorn/printing-press-library install erank --cli-only
```
Verify: erank-pp-cli --version
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):

bash

go install github.com/mvanhorn/printing-press-library/library/marketing/erank/cmd/erank-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.

When to Use This CLI

Use this CLI when you need repeatable eRank Keyword Tool research from an agent or script. It is strongest for Etsy keyword decisions, tag extraction, top-listing comparisons, and tracking changes over time.

Unique Capabilities

These capabilities aren't available in any other tool for this API.

Seller decisions

opportunity — Score a keyword as a seller opportunity using eRank stats, difficulty, competition, and current top listings.

Use this when an agent needs a go/no-go read on a keyword instead of separate raw metric calls.
bash
```
erank-pp-cli opportunity "dad mug" --source etsy --country USA --agent
```
lists optimize — Rank saved keyword lists by weak, saturated, overlapping, and missing keyword opportunities.

Use this when an agent needs to clean up a seller's research list before drafting listings.
bash
```
erank-pp-cli lists optimize "Father's Day mugs" --country USA --agent
```
saturation — Flag crowded keywords by combining competition, difficulty, tag reuse, and top-listing density.

Use this to avoid chasing keywords that look popular but are too crowded to enter.
bash
```
erank-pp-cli saturation "dad mug" --source etsy --country USA --agent
```

Listing optimization

listing gaps — Compare a draft listing title and tags against phrases and tags appearing in top eRank results.

Use this before publishing or rewriting an Etsy listing from keyword evidence.
bash
```
erank-pp-cli listing gaps "dad mug" --title "Funny Dad Coffee Mug" --tags "dad gift,fathers day,mug" --agent
```
tags consensus — Find tags that repeatedly appear across top listings, Etsy tag data, related searches, and near matches.

Use this when an agent needs defensible tag candidates grounded in multiple signals.
bash
```
erank-pp-cli tags consensus "dad mug" --source etsy --country USA --min-count 3 --agent
```

Local history

watch drift — Detect meaningful changes in keyword competition, difficulty, and top listings across saved snapshots.

Use this to monitor seasonal or competitive shifts without rereading full eRank pages.
bash
```
erank-pp-cli watch drift "dad mug" --days 30 --threshold 15 --agent
```

Product research

angles — Extract product angles from related searches, near matches, tags, and current top listings.

Use this when an agent needs product-angle ideas tied to observed demand signals.
bash
```
erank-pp-cli angles "dad mug" --source etsy --country USA --limit 10 --agent
```

HTTP Transport

This CLI uses Chrome-compatible HTTP transport for browser-facing endpoints. It does not require a resident browser process for normal API calls.

Discovery Signals

This CLI was generated with browser-observed traffic context.

Capture coverage: 61 API entries from 233 total network entries
Protocols: rest_json (75% confidence)
Auth signals: api_key — query: keyword
Generation hints: browser_http_transport, requires_protected_client, weak_schema_confidence
Candidate command ideas: create_competition — Derived from observed POST /api/keyword-tool/competition traffic.; create_google_data — Derived from observed POST /api/keyword-tool/google-data traffic.; create_keyword_difficulty — Derived from observed POST /api/keyword-tool/keyword-difficulty traffic.; create_save_history — Derived from observed POST /api/keyword-tool/save-history traffic.; get_user_preferences — Derived from observed GET /api/account/user-preferences/{user_preference_id} traffic.; list_check_paddle_restriction — Derived from observed GET /api/check-paddle-restriction traffic.; list_check_token_validity — Derived from observed GET /api/oauth/check-token-validity traffic.; list_customer — Derived from observed GET /dotjs/v1/quests/customer/ traffic.
Caveats: empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.; empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.; empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.; empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.; empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.; empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.; empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.; empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.; empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.; empty_payload: API-looking request returned an empty or null payload; schema confidence is weak.

Command Reference

account — Operations on sideBarCollapse

erank-pp-cli account get-user-preferences — GET /api/account/user-preferences/{user_preference_id}
erank-pp-cli account list-keyword-tool.near-matches.table.config.columns — GET /api/account/user-preferences/keyword-tool.near-matches.table.config.columns
erank-pp-cli account list-kt-keyword-ideas — GET /api/account/user-preferences/kt_keyword_ideas
erank-pp-cli account list-member-preferences — GET /api/account/member-preferences
erank-pp-cli account list-search-country — GET /api/account/user-preferences/searchCountry
erank-pp-cli account list-side-bar-collapse — GET /api/account/user-preferences/sideBarCollapse

build — Operations on version.json

erank-pp-cli build — GET /build/version.json

check-paddle-restriction — Operations on check-paddle-restriction

erank-pp-cli check-paddle-restriction — GET /api/check-paddle-restriction

intercom — Operations on intercom

erank-pp-cli intercom — GET /api/intercom

keyword-tool — Operations on stats

erank-pp-cli keyword-tool create-competition — POST /api/keyword-tool/competition
erank-pp-cli keyword-tool create-google-data — POST /api/keyword-tool/google-data
erank-pp-cli keyword-tool create-keyword-difficulty — POST /api/keyword-tool/keyword-difficulty
erank-pp-cli keyword-tool create-save-history — POST /api/keyword-tool/save-history
erank-pp-cli keyword-tool list-etsy-tags — GET /api/keyword-tool/etsy-tags
erank-pp-cli keyword-tool list-near-matches — GET /api/keyword-tool/near-matches
erank-pp-cli keyword-tool list-related-searches — GET /api/keyword-tool/related-searches
erank-pp-cli keyword-tool list-stats — GET /api/keyword-tool/stats
erank-pp-cli keyword-tool list-top-listings — GET /api/keyword-tool/top-listings

keywordlist — Operations on names

erank-pp-cli keywordlist list-names — GET /api/keywordlist/names
erank-pp-cli keywordlist list-terms — GET /api/keywordlist/terms

member-shops — Operations on member-shops

erank-pp-cli member-shops — GET /api/member-shops

motd-v3 — Operations on keyword-tool

erank-pp-cli motd-v3 — GET /api/motd-v3/keyword-tool

oauth — Operations on check-token-validity

erank-pp-cli oauth — GET /api/oauth/check-token-validity

quota — Operations on daily

erank-pp-cli quota — GET /api/quota/daily

refresh-data — Operations on last-refresh

erank-pp-cli refresh-data — GET /api/refresh-data/listings/last-refresh

Freshness Contract

This printed CLI owns bounded freshness only for registered store-backed read command paths. In --data-source auto mode, those paths check sync_state and may run a bounded refresh before reading local data. --data-source local never refreshes. --data-source live reads the API and does not mutate the local store. Set ERANK_NO_AUTO_REFRESH=1 to skip the freshness hook without changing source selection.

Covered paths:

erank-pp-cli account
erank-pp-cli account get
erank-pp-cli account list
erank-pp-cli account search
erank-pp-cli account-user-preferences-keyword-tool-near-matches-table-config-columns
erank-pp-cli account-user-preferences-keyword-tool-near-matches-table-config-columns get
erank-pp-cli account-user-preferences-keyword-tool-near-matches-table-config-columns list
erank-pp-cli account-user-preferences-keyword-tool-near-matches-table-config-columns search
erank-pp-cli account-user-preferences-kt-keyword-ideas
erank-pp-cli account-user-preferences-kt-keyword-ideas get
erank-pp-cli account-user-preferences-kt-keyword-ideas list
erank-pp-cli account-user-preferences-kt-keyword-ideas search
erank-pp-cli account-user-preferences-search-country
erank-pp-cli account-user-preferences-search-country get
erank-pp-cli account-user-preferences-search-country list
erank-pp-cli account-user-preferences-search-country search
erank-pp-cli account-user-preferences-side-bar-collapse
erank-pp-cli account-user-preferences-side-bar-collapse get
erank-pp-cli account-user-preferences-side-bar-collapse list
erank-pp-cli account-user-preferences-side-bar-collapse search
erank-pp-cli build
erank-pp-cli build get
erank-pp-cli build list
erank-pp-cli build search
erank-pp-cli check-paddle-restriction
erank-pp-cli check-paddle-restriction get
erank-pp-cli check-paddle-restriction list
erank-pp-cli check-paddle-restriction search
erank-pp-cli intercom
erank-pp-cli intercom get
erank-pp-cli intercom list
erank-pp-cli intercom search
erank-pp-cli keywordlist
erank-pp-cli keywordlist get
erank-pp-cli keywordlist list
erank-pp-cli keywordlist search
erank-pp-cli keywordlist-terms
erank-pp-cli keywordlist-terms get
erank-pp-cli keywordlist-terms list
erank-pp-cli keywordlist-terms search
erank-pp-cli member-shops
erank-pp-cli member-shops get
erank-pp-cli member-shops list
erank-pp-cli member-shops search
erank-pp-cli motd-v3
erank-pp-cli motd-v3 get
erank-pp-cli motd-v3 list
erank-pp-cli motd-v3 search
erank-pp-cli oauth
erank-pp-cli oauth get
erank-pp-cli oauth list
erank-pp-cli oauth search
erank-pp-cli quota
erank-pp-cli quota get
erank-pp-cli quota list
erank-pp-cli quota search
erank-pp-cli refresh-data
erank-pp-cli refresh-data get
erank-pp-cli refresh-data list
erank-pp-cli refresh-data search

When JSON output uses the generated provenance envelope, freshness metadata appears at meta.freshness. Treat it as current-cache freshness for the covered command path, not a guarantee of complete historical backfill or API-specific enrichment.

Show full SKILL.md (675 more words)Show less

Finding the right command

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

bash

erank-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.

Recipes

Compact top listings for an agent

bash

erank-pp-cli keyword-tool list-top-listings --keyword "dad mug" --marketplace etsy --country USA --agent --select title,shop_name,price,tags

Returns only listing fields an agent needs for comparison.

Score a niche before drafting

bash

erank-pp-cli opportunity "dad mug" --source etsy --country USA --agent

Combines eRank keyword and listing signals into a go/no-go score.

Find defensible tags

bash

erank-pp-cli tags consensus "dad mug" --source etsy --country USA --min-count 3 --agent

Extracts recurring tag evidence across captured eRank surfaces.

Check draft listing gaps

bash

erank-pp-cli listing gaps "dad mug" --title "Funny Dad Coffee Mug" --tags "dad gift,fathers day,mug" --agent

Compares draft copy to top-ranking listing evidence.

Auth Setup

This CLI uses an authenticated eRank member session. Run the generated auth setup flow before live commands; captured endpoints require the same browser-compatible session that powers eRank's member tools.

Run erank-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:
bash
```
erank-pp-cli account get-user-preferences mock-value --agent --select id,name,status
```
Previewable — --dry-run shows the request without sending
Offline-friendly — sync/search commands can use the local SQLite store when available
Non-interactive — never prompts, every input is a flag
Explicit retries — use --idempotent only when an already-existing create should count as success

Response envelope

Commands that read from the local store or the API wrap output in a provenance envelope:

json

{
  "meta": {"source": "live" | "local", "synced_at": "...", "reason": "..."},
  "results": <data>
}

Parse .results for data and .meta.source to know whether it's live or local. A human-readable N results (live) summary is printed to stderr only when stdout is a terminal AND no machine-format flag (--json, --csv, --compact, --quiet, --plain, --select) is set — piped/agent consumers and explicit-format runs get pure JSON on stdout.

Agent Feedback

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

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

Entries are stored locally at ~/.local/share/erank-pp-cli/feedback.jsonl. They are never POSTed unless ERANK_FEEDBACK_ENDPOINT is set AND either --send is passed or ERANK_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:

Sink	Effect
`stdout`	Default; write to stdout only
`file:<path>`	Atomically write output to `<path>` (tmp + rename)
`webhook:<url>`	POST the output body to the URL (`application/json` or `application/x-ndjson` when `--compact`)

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.

erank-pp-cli profile save briefing --json
erank-pp-cli --profile briefing account get-user-preferences mock-value
erank-pp-cli profile list --json
erank-pp-cli profile show briefing
erank-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

Code	Meaning
0	Success
2	Usage error (wrong arguments)
3	Resource not found
4	Authentication required
5	API error (upstream issue)
7	Rate limited (wait and retry)
10	Config error

Argument Parsing

Parse $ARGUMENTS:

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

MCP Server Installation

Install the MCP server:

bash

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

bash

claude mcp add erank-pp-mcp -- erank-pp-mcp

Verify: claude mcp list

Direct Use

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

Execute with the --agent flag:

bash

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

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

Files

Just SKILL.md in cli-skills/pp-erank of mvanhorn/printing-press-library.

Open the folder on GitHubat commit 76de244

Compare with similar skills

Pp Erank next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Pp Erank compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Pp Erank this skillmvanhorn/printing-press-library	2.1k	—	~4.7k	Automated safety check: Notes	Apache-2.0	today
Claw Scoreopenclaw/openclaw	392k	—	~2.5k	Automated safety check: Pass	MIT	today
Harness Scoreruvnet/ruflo	74k	—	~605	Automated safety check: Notes	MIT	today
SEO Aeo Keyword Researchsickn33/agentic-awesome-skills	47k	1 repos	~3.9k	Automated safety check: Pass	MIT	today
Score Evalsickn33/agentic-awesome-skills	47k	1 repos	~304	Automated safety check: Pass	MIT	today
Keyword Extractorsickn33/agentic-awesome-skills	47k	2 repos	~1.1k	Automated safety check: Pass	MIT	today

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Questions about Pp Erank

What does Pp Erank do?

Keyword Tool data from eRank, plus local scoring, drift, and listing-gap analysis for Etsy sellers. Pp Erank is an agent skill from mvanhorn/printing-press-library. Keyword Tool data from eRank, plus local scoring, drift, and listing-gap analysis for Etsy sellers.

When should I use Pp Erank?

Pp Erank fits situations like: phrases: research dad mug on eRank; score an Etsy keyword; find eRank top listings; compare Etsy listing tags.

How do I install Pp Erank in Claude Code?

Run `npx skills add mvanhorn/printing-press-library --skill pp-erank -a claude-code`. Or copy the skill folder (cli-skills/pp-erank in mvanhorn/printing-press-library) into .claude/skills/pp-erank in your project. Claude Code loads it when a task matches its description.

How do I install Pp Erank in Codex?

Run `npx skills add mvanhorn/printing-press-library --skill pp-erank -a codex`. Or copy the skill folder (cli-skills/pp-erank in mvanhorn/printing-press-library) into .agents/skills/pp-erank in your project. Codex loads it when a task matches its description.

Can I use Pp Erank in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mvanhorn/printing-press-library --skill pp-erank -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pp-erank, .gemini/skills/pp-erank, .github/skills/pp-erank and .opencode/skills/pp-erank in your project.

What does Pp Erank need to run?

Going by SKILL.md and its folder, Pp Erank needs the command-line tools its instructions call (go, claude and npx). Our summary lists: Node.js. Its frontmatter pre-approves these tools: Read, Bash.

Does Pp Erank access the network?

SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Pp Erank safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Pp Erank use?

Pp Erank is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Pp Erank use?

About 4.7k tokens (SKILL.md is roughly 19k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Pp Erank?

Skills that share tags, products or a category with Pp Erank: Claw Score (openclaw/openclaw, 392k stars), Harness Score (ruvnet/ruflo, 74k stars), SEO Aeo Keyword Research (sickn33/agentic-awesome-skills, 47k stars) and Score Eval (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Pp Erank?

mvanhorn (a GitHub user) maintains it in mvanhorn/printing-press-library, which has 2,056 GitHub stars. The repository holds 506 skills in this directory. The repository was last updated on October 9, 2026.

Source: mvanhorn/printing-press-library on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Pp Erank

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

eRank — Printing Press CLI

Prerequisites: Install the CLI

When to Use This CLI

Unique Capabilities

Seller decisions

Listing optimization

Local history

Product research

HTTP Transport

Discovery Signals

Command Reference

Freshness Contract

Finding the right command

Recipes

Compact top listings for an agent

Score a niche before drafting

Find defensible tags

Check draft listing gaps

Auth Setup

Agent Mode

Response envelope

Agent Feedback

Output Delivery

Named Profiles

Exit Codes

Argument Parsing

MCP Server Installation

Direct Use

Files

Compare with similar skills

Similar skills

More from mvanhorn/printing-press-library

Questions about Pp Erank