Is the NCP Damage Calculator skill free?

Yes. The skill itself is free from pmwl0128/pokemon_champion_agent. SkillProof publishes the install command and an independent test verdict at no cost.

What is the NCP Damage Calculator SkillProof Score?

9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 4/5.

How do I install NCP Damage Calculator?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use NCP Damage Calculator with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

NCP Damage Calculator

Exact Pokemon Champions damage rolls, KO odds and speed lines from a JSON CLI

by pmwl0128 · pmwl0128/pokemon_champion_agent

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.2/10
Tested: Aug 10, 2026
Environment: Claude Code 2.x (agent harness)

Asked whether Adamant max-Atk Mega Metagross OHKOs a 32 HP Garchomp with Meteor Mash: reasoning from ordinary VGC math without the skill I predicted a guaranteed OHKO at 115-140%, and the bundled calculator returned 57.7-99% off 215 HP, a guaranteed 2HKO after Leftovers. The skill is right and the guess is wrong because Champions uses its own SP stat scaling, so this is exactly the class of question you cannot eyeball. Output carries all 16 rolls, min/max, defender HP, a KO verdict and a caveats field that flagged the defender's Stamina ability as something the model overstates. It also refuses unknown names cleanly rather than inventing them, rejecting 'Pikachu Libre' with an unknown_pokemon error. No quickjs-ng installed here, and the documented Node fallback took over silently and worked; the usage examples are PowerShell-only, so macOS and Linux users must retype the here-strings and backslash paths.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 9/10
Docs & honesty 4/5

What NCP Damage Calculator does

Runs real damage and speed calculations for Pokemon Champions through a bundled copy of the NCP VGC damage calculator, exposed as a JSON-in/JSON-out CLI. Give it attacker and defender with ability, item, nature, SP spread and field state and it returns every damage roll, percentages, defender HP, a KO verdict and the caveats that make the model imprecise. Triggers on concrete calc questions in English, Chinese or Japanese, such as whether a move OHKOs, whether a spread survives a hit, or which Pokemon moves first.

How to install NCP Damage Calculator

git clone --depth 1 https://github.com/pmwl0128/pokemon_champion_agent.git
mkdir -p ~/.claude/skills
cd pokemon_champion_agent && cp -r .claude/skills/ncp-damage-calculator ~/.claude/skills/ncp-damage-calculator

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger NCP Damage Calculator

/ncp-damage-calculator Exact Pokemon Champions damage rolls, KO odds and speed lines from a JSON CLI

It also activates on plain-language prompts like these:

Does Adamant Mega Metagross's Meteor Mash OHKO a 32 HP Garchomp?
Calculate the damage roll for Life Orb Garchomp's Earthquake
Does Jolly Garchomp outspeed a Choice Scarf Modest Archaludon?

Frequently asked questions

Is the NCP Damage Calculator skill free?: Yes. The skill itself is free from pmwl0128/pokemon_champion_agent. SkillProof publishes the install command and an independent test verdict at no cost.
Does NCP Damage Calculator work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Aug 10, 2026. Verdict: Tested · Works. Asked whether Adamant max-Atk Mega Metagross OHKOs a 32 HP Garchomp with Meteor Mash: reasoning from ordinary VGC math without the skill I predicted a guaranteed OHKO at 115-140%, and the bundled calculator returned 57.7-99% off 215 HP, a guaranteed 2HKO after Leftovers. The skill is right and the guess is wrong because Champions uses its own SP stat scaling, so this is exactly the class of question you cannot eyeball. Output carries all 16 rolls, min/max, defender HP, a KO verdict and a caveats field that flagged the defender's Stamina ability as something the model overstates. It also refuses unknown names cleanly rather than inventing them, rejecting 'Pikachu Libre' with an unknown_pokemon error. No quickjs-ng installed here, and the documented Node fallback took over silently and worked; the usage examples are PowerShell-only, so macOS and Linux users must retype the here-strings and backslash paths.
What is the NCP Damage Calculator SkillProof Score?: 9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 4/5.
How do I install NCP Damage Calculator?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use NCP Damage Calculator with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.