Agent skill

Pp Iko Yo

by mvanhorn in mvanhorn/printing-press-library

Iko-yo Trip: find selected family trips and compare published dates, fees and explicit family facts.

Apache-2.0Auto-check: notes

Install Pp Iko Yo

skills CLI
$ npx skills add mvanhorn/printing-press-library --skill pp-iko-yo -a claude-code

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

GitHub CLI
$ gh skill install mvanhorn/printing-press-library pp-iko-yo --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-iko-yo .claude/skills/pp-iko-yo && 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/

Facts

Skill name
pp-iko-yo
GitHub stars
2.1k
Token cost
~4.1k tokens
SKILL.md length
1,796 words
Files
1
Skills in repo
506
Repo updated
First seen
Licence
Apache-2.0

At a glance

Iko-yo Trip: find selected family trips and compare published dates, fees and explicit family facts.

  • Works in 3 steps: Install via the Printing Press… → Verify: iko-yo-pp-cli --version → Ensure the reported install directory is…
  • Phrases: find Iko-yo Trip family events in Saitama
  • SKILL.md covers Prerequisites: Install the CLI, When to Use This CLI, Anti-triggers and Unique Capabilities, plus 15 more sections
  • Calls go, claude and npx

What it does

Pp Iko Yo is an agent skill from mvanhorn/printing-press-library. Iko-yo Trip: find selected family trips and compare published dates, fees and explicit family facts. Trigger phrases: find Iko-yo Trip family events in Saitama, compare published child and adult outing fees, check explicit nursing and changing facilities, use iko-yo, run iko-yo-pp-cli.

Its SKILL.md is about 4.1k 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: find Iko-yo Trip family events in Saitama
  • Compare published child and adult outing fees
  • Check explicit nursing and changing facilities
  • Run iko-yo-pp-cli

Example prompts

  • “/pp-iko-yo”

Requirements

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

Workflow steps

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

  1. Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and…
  2. Verify: iko-yo-pp-cli --version
  3. 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 Iko Yo loads about 4.1k tokens when it runs. Until then it costs about 77 tokens; SKILL.md has 1,796 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~77
When it runs · the whole SKILL.md, loaded when a task matches
~4.1k

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). 1,796 words, ~4,074 tokens.

Download SKILL.mdSave it as .claude/skills/pp-iko-yo/SKILL.md (or your agent's skills folder).
name
pp-iko-yo
description
Iko-yo Trip: find selected family trips and compare published dates, fees and explicit family facts. Trigger phrases: `find Iko-yo Trip family events in Saitama`, `compare published child and adult outing fees`, `check explicit nursing and changing facilities`, `use iko-yo`, `run iko-yo-pp-cli`.
allowed-tools
Read, Bash
author
zjsng
license
Apache-2.0
argument-hint
<command> [args] | install cli|mcp
<!-- GENERATED FILE — DO NOT EDIT.
     This file is a verbatim mirror of library/travel/iko-yo/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/". -->

Iko-yo Trip — Printing Press CLI

Prerequisites: Install the CLI

This skill drives the iko-yo-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:
    bash
    npx -y @mvanhorn/printing-press-library install iko-yo --cli-only
  2. Verify: iko-yo-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). This installs into $GOPATH/bin (default $HOME/go/bin), so add that directory to $PATH instead:

bash
go install github.com/mvanhorn/printing-press-library/library/travel/iko-yo/cmd/iko-yo-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.

Discover Iko-yo Trip’s local experiences and municipal events, inspect evidence, and compare a small family shortlist. Keyword and date filters apply only to the reported bounded listing window; cached records retain their observation times. The full core Iko-yo catalog is not integrated.

When to Use This CLI

Use this CLI for selected Iko-yo Trip family spots, municipal events and local experiences across Japan. It is useful when event dates, separate fees, application conditions or explicit family facilities affect a small shortlist. Report the bounded source window and preserve unknown facts.

Anti-triggers

Do not use this CLI for:

  • Full core Iko-yo catalog or core age-filter search
  • Bookings, payments, reviews, posts or account changes
  • Live seat availability or guaranteed age/accessibility suitability

Unique Capabilities

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

Find family-trip candidates
  • trip discover — Find regional candidates while seeing exactly which listing pages and records were checked.

    Choose this when a trip window matters and complete source coverage is unavailable.

    bash
    iko-yo-pp-cli trip discover --kind events --region 6 --prefecture 11 --from 2026-11-14 --to 2026-11-15 --max-pages 2 --agent
Check published conditions
  • trip inspect — See published age, indoor, nursing and changing evidence with unknown fields exposed.

    Choose this before deciding whether published family facts meet a requirement.

    bash
    iko-yo-pp-cli trip inspect spots/8220 --agent
  • trip compare — Compare separate fee statements, payment conditions and explicit application intervals.

    Choose this to compare published costs and deadlines without assuming a total or seat availability.

    bash
    iko-yo-pp-cli trip compare spots/8220 events/8412 --on 2026-11-15 --as-of 2026-10-03 --agent
  • trip compare — Compare selected outings against age, requested amenities and a trip date using supported, excluded and unknown states.

    Choose this for a small family shortlist that needs explicit constraints.

    bash
    iko-yo-pp-cli trip compare spots/8220 events/8412 --on 2026-11-15 --age-months 24 --amenities indoor,nursing,changing --agent
Revisit saved facts
  • trip cached — Search saved family facts with their original observation times and collection coverage.

    Choose this to revisit saved records without network access.

    bash
    iko-yo-pp-cli trip cached Mooovi --kind spots --agent

Discovery Signals

This CLI was generated with browser-observed traffic context.

  • Capture coverage: 0 API entries from 6 total network entries
  • Protocols: html_scrape (55% confidence)
  • Auth signals: none

Command Reference

events — Operations on events

  • iko-yo-pp-cli events get — Inspect published Iko-yo Trip event facts
  • iko-yo-pp-cli events list — Fetch structured links from /events
  • iko-yo-pp-cli events prefecture — Discover Iko-yo Trip events in a source prefecture
  • iko-yo-pp-cli events region — Discover Iko-yo Trip events in a source region

spots — Operations on spots

  • iko-yo-pp-cli spots get — Inspect published Iko-yo Trip spot facts
  • iko-yo-pp-cli spots list — Fetch structured links from /spots
Finding the right command

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

bash
iko-yo-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. --json (and other machine formats) keep that exit-2 contract and write {"matches":[]} on stdout so agents can inspect the envelope without treating a miss as success.

Evidence and coverage rules

Use Iko-yo Trip branding when presenting results. This is selected nationwide family experiences and municipal/local events; the full core Iko-yo catalog and its server age/facility filters are excluded.

  • Discovery scans at most five pages total across listing kinds, separately from the output limit. Listings are publication-ordered and include archived events. Report coverage, remaining pages, scanned/unknown counts and the zero-result note. An empty bounded scan does not establish that no matching events exist.
  • schedule.status distinguishes upcoming and ended records; irregular schedules stay unknown. A published span overlapping a visit date does not establish daily operation or an individual session.
  • Compare only explicit age and facility evidence. Missing amenities remain unknown. An indoor area does not imply an entirely indoor venue. Published age descriptions are not formal admission or safety guarantees.
  • Preserve separate child/adult fee statements and payment qualifiers. Do not derive a family total, dated quote or available seats. Application intervals, capacities and lottery terms are published evidence only.
  • Local facts retain observed_at. Auto inspect/compare tries live first; only a network failure permits saved-detail fallback with a warning. HTTP access errors and rate limits remain errors. Local scans cap records independently of returned matches and cap provenance to 5,000 memberships and 100 collections.
  • Saved Trip reads and MCP SQL require a stable, checkpointed cache and use a private snapshot capped at 128 MiB. If active sidecars or changed identity are reported, close writers and retry; do not interpret the error as an empty collection. Live saves use canonical SQLite transactions. Symlinks to singly linked targets work; hard links and %, ? or # in selected/resolved/temp paths are refused. External cache replacement during writing is unsupported. --no-cache skips live snapshot saving.

Recipes

Narrow event candidates
bash
iko-yo-pp-cli trip discover --kind events --region 6 --prefecture 11 --max-pages 1 --agent --select records.ref,records.name,records.schedule,coverage

Inspect published event dates and the exact scanned source window.

Published family facts
bash
iko-yo-pp-cli trip inspect spots/8220 --agent

Read age and facility evidence and unknowns for one source record.

Compare a family shortlist
bash
iko-yo-pp-cli trip compare spots/8220 events/8412 --on 2026-11-15 --as-of 2026-10-03 --age-months 24 --amenities indoor,nursing,changing --agent

Compare constraints, charge qualifiers and application boundaries.

Offline saved facts
bash
iko-yo-pp-cli trip cached Mooovi --kind spots --agent

Search only previously saved normalized records with their provenance.

Auth Setup

The supported Trip pages use ordinary public HTTP and need no account or API key. Source records are published information, not live availability.

Run iko-yo-pp-cli doctor to verify setup.

Agent Mode

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

Global format flags share one contract on source, planning, and --deliver paths:

  • --json — one JSON document on stdout

  • --compact — keep identity/status/timestamp fields; does not change the document vs stream shape

  • --csv / --plain — tabular rows (collection envelopes unwrap to the row array)

  • --quiet — one identity value per row, no envelope

  • 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
    iko-yo-pp-cli events list --agent
  • Previewable — --dry-run shows the request without sending

  • Offline-friendly — trip cached and trip inspect --data-source local read selected saved facts

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

  • Read-only — do not use this CLI for create, update, delete, publish, comment, upvote, invite, order, send, or other mutating requests

Show full SKILL.md (727 more words)Show less
Response envelope

--agent wraps Trip results in a provenance envelope. Ordinary --json returns the bare typed record or collection:

json
{
  "meta": {"source": "live"},
  "results": <data>
}

For --agent, parse .results and .meta.source. Inspect each record’s data_source and observed_at; comparisons may mix live and saved observations. Coverage belongs to the reported scan only. Human output includes source facts and scan notes; machine formats remain clean.

Paths and state

Agents should treat the CLI's path resolver as part of the runtime contract:

  • Use --home <dir> for one invocation, or set IKO_YO_HOME=<dir> to relocate all four path kinds under one root.

  • Use per-kind env vars only when a specific kind must diverge: IKO_YO_CONFIG_DIR, IKO_YO_DATA_DIR, IKO_YO_STATE_DIR, IKO_YO_CACHE_DIR.

  • Resolution order is per-kind env var, --home, IKO_YO_HOME, XDG (XDG_CONFIG_HOME, XDG_DATA_HOME, XDG_STATE_HOME, XDG_CACHE_HOME), then platform defaults.

  • config contains settings like config.toml and profiles. data contains the selected public-fact data.db; this no-auth integration does not need credentials or cookies. state contains persisted queries, jobs, and teach.log. cache contains regenerable HTTP/cache files.

  • Run iko-yo-pp-cli doctor --fail-on warn to surface path warnings. agent-context exposes a schema v4 paths block for agents that need the resolved dirs.

  • For MCP, pass relocation through the MCP host config. The MCP binary does not inherit CLI flags:

    json
    {
      "mcpServers": {
        "iko-yo": {
          "command": "iko-yo-pp-mcp",
          "env": {
            "IKO_YO_HOME": "/srv/iko-yo"
          }
        }
      }
    }

Fleet precedence: an inherited per-kind env var overrides an explicit --home for that kind. Use IKO_YO_HOME or per-kind vars as durable fleet levers, and use --home only for a single invocation. Relocation is not reversible by unsetting env vars; move files manually before clearing IKO_YO_HOME, or saved facts and profiles remain under the former root until moved.

Automatic learning

Trip planning inputs are per-invocation constraints. Successful trip invocations disable automatic query learning and journaling. Save and revisit only normalized public source facts through trip inspect, trip discover and trip cached; their original observation times stay visible. Never teach child profiles, contributor identities, private travel histories or personal details. The optional framework learning commands may store only general command patterns after identifiers and personal context are removed. Use --no-learn or IKO_YO_NO_LEARN=true for other commands when needed.

Agent Feedback

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

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

Entries are stored locally as feedback.jsonl under the resolved data dir. They are never POSTed unless IKO_YO_FEEDBACK_ENDPOINT is set AND either --send is passed or IKO_YO_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:

SinkEffect
stdoutDefault; write to stdout only
file:<path>Atomically write output to <path> (tmp + rename). Binary-response commands write decoded payload bytes (not the base64 JSON envelope) and print a small JSON receipt on stdout; --json/--csv do not refuse when this sink is set.
webhook:<url>POST the output body to the URL (application/json)

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 or recurring agent reuses the same saved flags while providing different input each run.

iko-yo-pp-cli profile save briefing --json
iko-yo-pp-cli --profile briefing events list
iko-yo-pp-cli profile list --json
iko-yo-pp-cli profile show briefing
iko-yo-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

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

Argument Parsing

Parse $ARGUMENTS:

  1. Empty, help, or --help → show iko-yo-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:
    bash
    go install github.com/mvanhorn/printing-press-library/library/travel/iko-yo/cmd/iko-yo-pp-mcp@latest
  2. Register with Claude Code:
    bash
    claude mcp add iko-yo-pp-mcp -- iko-yo-pp-mcp
  3. Verify: claude mcp list

Direct Use

  1. Check if installed: which iko-yo-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:
    bash
    iko-yo-pp-cli trip inspect spots/8220 --agent
  4. If ambiguous, drill into subcommand help: iko-yo-pp-cli trip compare --help.

© mvanhorn, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

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

Open the folder on GitHubat commit 76de244

Compare with similar skills

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Bio Comparative Genomics Gene Family EvolutionGPTomics/bioSkills1.2k2 repos~6.6kAutomated safety check: PassMIT
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Questions about Pp Iko Yo

What does Pp Iko Yo do?

Iko-yo Trip: find selected family trips and compare published dates, fees and explicit family facts. Pp Iko Yo is an agent skill from mvanhorn/printing-press-library. Iko-yo Trip: find selected family trips and compare published dates, fees and explicit family facts.

When should I use Pp Iko Yo?

Pp Iko Yo fits situations like: phrases: find Iko-yo Trip family events in Saitama; compare published child and adult outing fees; check explicit nursing and changing facilities; run iko-yo-pp-cli.

How do I install Pp Iko Yo in Claude Code?

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

How do I install Pp Iko Yo in Codex?

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

Can I use Pp Iko Yo 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-iko-yo -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-iko-yo, .gemini/skills/pp-iko-yo, .github/skills/pp-iko-yo and .opencode/skills/pp-iko-yo in your project.

What does Pp Iko Yo need to run?

Going by SKILL.md and its folder, Pp Iko Yo 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 Iko Yo 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 Iko Yo 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 Iko Yo use?

Pp Iko Yo 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 Iko Yo use?

About 4.1k tokens (SKILL.md is roughly 16k 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 Iko Yo?

Skills that share tags, products or a category with Pp Iko Yo: Select Name (thedaviddias/Front-End-Checklist, 74k stars), Bio Comparative Genomics Positive Selection (GPTomics/bioSkills, 1.2k stars), Engine Selection (sickn33/agentic-awesome-skills, 47k stars) and Bio Comparative Genomics Gene Family Evolution (GPTomics/bioSkills, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Pp Iko Yo?

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.