Agent skill

Pp Jma

by mvanhorn in mvanhorn/printing-press-library

Read Japan Meteorological Agency official daily or weekly forecasts, municipality weather warnings and typhoon uncertainty for Japan trip planning.

Apache-2.0Auto-check: notes

Install Pp Jma

skills CLI

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

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

GitHub CLI

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

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-jma -a codex

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

GitHub CLI

$ gh skill install mvanhorn/printing-press-library pp-jma --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-jma .agents/skills/pp-jma && 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-jma" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-jma into .agents/skills/pp-jma/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-jma", 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-jma -a cursor

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

GitHub CLI

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

--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-jma -a gemini-cli

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

GitHub CLI

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

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-jma -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-jma .github/skills/pp-jma && 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-jma" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-jma into .github/skills/pp-jma/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-jma", 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-jma -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-jma --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-jma .opencode/skills/pp-jma && 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-jma" agent skill from https://github.com/mvanhorn/printing-press-library/tree/main/cli-skills/pp-jma into .opencode/skills/pp-jma/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pp-jma", 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-jma
GitHub stars: 2.1k
Token cost: ~1.7k tokens
SKILL.md length: 627 words
Files: 1
Skills in repo: 506
Repo updated: Oct 9, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Read Japan Meteorological Agency official daily or weekly forecasts, municipality weather warnings and typhoon uncertainty for Japan trip planning.

Works in 3 steps: Install via the Printing Press… → Verify: jma-pp-cli --version → Ensure the reported install directory is…
Forecast station resolution
SKILL.md covers Prerequisites: Install the CLI, Agent output, Boundaries and Unique Capabilities, plus 2 more sections
Calls npx and go

What it does

Pp Jma is an agent skill from mvanhorn/printing-press-library. Read Japan Meteorological Agency official daily or weekly forecasts, municipality weather warnings and typhoon uncertainty for Japan trip planning. Use for JMA area or forecast station resolution, checking JMA warning lifecycle, or inspecting JMA cyclone analysis versus forecast. Trigger phrases include "JMA forecast for Tokyo", "JMA warnings for my destination", "check typhoon forecast uncertainty", "use jma-cli", and "run jma-cli".

Its SKILL.md is about 1.7k 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

Forecast station resolution
Checking JMA warning lifecycle
Inspecting JMA cyclone analysis versus forecast
Phrases include JMA forecast for Tokyo

Example prompts

“JMA forecast for Tokyo”
“JMA warnings for my destination”
“check typhoon forecast uncertainty”
“/pp-jma”

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: jma-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:
- npx
- go
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 Jma loads about 1.7k tokens when it runs. Until then it costs about 111 tokens; SKILL.md has 627 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~111
When it runs · the whole SKILL.md, loaded when a task matches: ~1.7k

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). 627 words, ~1,734 tokens.

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

name: pp-jma
description: Read Japan Meteorological Agency official daily or weekly forecasts, municipality weather warnings and typhoon uncertainty for Japan trip planning. Use for JMA area or forecast station resolution, checking JMA warning lifecycle, or inspecting JMA cyclone analysis versus forecast. Trigger phrases include "JMA forecast for Tokyo", "JMA warnings for my destination", "check typhoon forecast uncertainty", "use jma-cli", and "run jma-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/jma/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/". -->

JMA source workflow

Prerequisites: Install the CLI

This skill drives the jma-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 jma --cli-only
```
Verify: jma-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). 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/jma/cmd/jma-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.

Resolve the destination with jma-pp-cli areas search --query Kyoto --kind municipality, then areas resolve --area 2610000. Use the returned source ID; exact name ambiguity is an error. Stations are forecast temperature references; use stations search for a station request.
Read forecast get --area 130010 --period all --days 3. Preserve district/station IDs, issued and valid times, units, source confidence and missing null values. Short extrema time markers are not instantaneous temperatures.
Read warnings get --area 1310100. Summaries cover all resolved municipalities before pagination. Report source Japanese wording and lifecycle; inspect --detail for source hazard properties. none_reported concerns retrieved municipality weather products only. incomplete, transport failure, missing records and unknown codes do not establish no warnings.
Discover current cyclone IDs with typhoons list, then fetch selected detail with typhoons get --id TC2632. Obtain a current ID before running the example. Distinguish JMA analysis, estimate and forecast. A 70% center probability circle is forecast uncertainty; it does not represent cyclone size or a guaranteed path. Historical analysis tracks in --detail have no individual timestamps.
Check meta.coverage, meta.sources, issue ages and page.next_offset. Use --refresh for a fresh network request. inventory refresh is explicit; source inventory reads are offline and do not silently refresh. --offline fails on stale/missing weather cache. Finish when the requested source evidence is retrieved and its geographic/temporal limits are reported, or a retrieval failure is clearly reported.

Show full SKILL.md (294 more words)Show less

Agent output

jma-pp-cli forecast get --area 130010 --agent --select results.series
jma-pp-cli warnings get --area 1340100 --detail --select state,municipalities.events
jma-pp-cli typhoons list --select results.id,results.issued_at
jma-pp-cli stations search --query Tokyo --limit 5

JSON is compact by default. Dotted field projection traverses arrays and always retains provenance/pagination. Exit 2 indicates input/projection/resolution error; 4 transport/cache/offline error; 5 incomplete/incompatible source data. Diagnostics go to stderr. Source absence stays null. Use --cache-dir to isolate this CLI's cache and an absolute --home to isolate framework state. No API key or paid account is required.

Boundaries

Read README.md when explaining source validity, station coverage or warning completeness. Municipality weather warnings exclude joint river flood bulletins and coastal-zone supplements; warning valid-until is unknown. Issue age is not warning expiry. Present JMA wording accurately without personal safety clearance or evacuation advice. Choose another source for earthquake, tsunami, volcano, radar, observation/history, long-range forecasts, geocoding, transport operation status or weather outside JMA's scope. No purchases, bookings or provider writes.

Unique Capabilities

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

Source correctness

areas resolve — Resolve source IDs and reject ambiguous destination names.

Resolve source IDs and reject ambiguous destination names.
bash
```
jma-pp-cli areas resolve --area 1310100 --agent
```
warnings get — Separate applicable no-warning, not-applicable, lifted and incomplete source records.

Separate applicable no-warning, not-applicable, lifted and incomplete source records.
bash
```
jma-pp-cli warnings get --area 1340100 --agent
```
typhoons get — Join matching JMA issued/valid-time geometry and intensity documents.

Join matching JMA issued/valid-time geometry and intensity documents.
bash
```
jma-pp-cli typhoons get --id TC2633 --agent
```
typhoons list — Discover current source cyclone IDs without detail requests.

Discover current source cyclone IDs without detail requests.
bash
```
jma-pp-cli typhoons list --agent
```
inventory refresh — Validate first-party source catalogs before atomic local replacement.

Validate first-party source catalogs before atomic local replacement.
bash
```
jma-pp-cli inventory refresh --agent
```

Recipes

Tokyo warnings

bash

jma-pp-cli warnings get --area 1310100 --agent --select results

Municipality-specific source status

Typhoon discovery

bash

jma-pp-cli typhoons list --agent

Lazy active cyclone inventory

Auth Setup

Public anonymous HTTPS; no credentials or fees.

Run jma-pp-cli doctor to verify setup.

Files

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

Open the folder on GitHubat commit 76de244

Compare with similar skills

Pp Jma 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 Jma compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Pp Jma this skillmvanhorn/printing-press-library	2.1k	—	~1.7k	Automated safety check: Notes	Apache-2.0	today
Dailysickn33/agentic-awesome-skills	47k	3 repos	~3.6k	Automated safety check: Pass	MIT	today
Weekly Project Digeststhedotmack/claude-mem	99k	—	~3.5k	Automated safety check: Pass	Apache-2.0	today
Weekly Review PlanningNousResearch/hermes-agent	252k	—	~994	Automated safety check: Pass	MIT	today
Weekly Agency ReviewGarethManning/education-agent-skills	837	—	~4.2k	Automated safety check: Pass	Custom licence	1 mo ago
Daily Giftsickn33/agentic-awesome-skills	47k	1 repos	~1.4k	Automated safety check: Pass	MIT-0	today

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Questions about Pp Jma

What does Pp Jma do?

Read Japan Meteorological Agency official daily or weekly forecasts, municipality weather warnings and typhoon uncertainty for Japan trip planning. Pp Jma is an agent skill from mvanhorn/printing-press-library. Read Japan Meteorological Agency official daily or weekly forecasts, municipality weather warnings and typhoon uncertainty for Japan trip planning.

When should I use Pp Jma?

Pp Jma fits situations like: forecast station resolution; checking JMA warning lifecycle; inspecting JMA cyclone analysis versus forecast; phrases include JMA forecast for Tokyo.

How do I install Pp Jma in Claude Code?

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

How do I install Pp Jma in Codex?

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

Can I use Pp Jma 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-jma -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-jma, .gemini/skills/pp-jma, .github/skills/pp-jma and .opencode/skills/pp-jma in your project.

What does Pp Jma need to run?

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

Does Pp Jma 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 Jma 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 Jma use?

Pp Jma 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 Jma use?

About 1.7k tokens (SKILL.md is roughly 6.9k 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 Jma?

Skills that share tags, products or a category with Pp Jma: Daily (sickn33/agentic-awesome-skills, 47k stars), Weekly Project Digests (thedotmack/claude-mem, 99k stars), Weekly Review Planning (NousResearch/hermes-agent, 252k stars) and Weekly Agency Review (GarethManning/education-agent-skills, 837 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Pp Jma?

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 Jma

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

JMA source workflow

Prerequisites: Install the CLI

Agent output

Boundaries

Unique Capabilities

Source correctness

Recipes

Tokyo warnings

Typhoon discovery

Auth Setup

Files

Compare with similar skills

Similar skills

More from mvanhorn/printing-press-library

Questions about Pp Jma