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Agent skill

CLI Anything Slay The Spire Ii

by HKUDS in HKUDS/CLI-Anything

Command-line interface for Slay the Spire 2 - Control the real game through a local bridge mod HTTP API.

Apache-2.0Auto-check passedBackend & APIs

Install CLI Anything Slay The Spire Ii

skills CLI
$ npx skills add HKUDS/CLI-Anything --skill cli-anything-slay-the-spire-ii -a claude-code

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

GitHub CLI
$ gh skill install HKUDS/CLI-Anything cli-anything-slay-the-spire-ii --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/HKUDS/CLI-Anything.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/cli-anything-slay-the-spire-ii .claude/skills/cli-anything-slay-the-spire-ii && 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
cli-anything-slay-the-spire-ii
GitHub stars
52k
Token cost
~1.4k tokens
SKILL.md length
533 words
Files
1
Skills in repo
78
Repo updated
First seen
Licence
Apache-2.0

At a glance

Command-line interface for Slay the Spire 2 - Control the real game through a local bridge mod HTTP API.

  • Works in 3 steps: Install the CLI → Build and install the bridge mod → Enable the mod and verify
  • Tasks that involve REST APIs
  • SKILL.md covers Installation, Usage, Command Groups and Decision States, plus 2 more sections
  • Calls git and pip

What it does

CLI Anything Slay The Spire Ii is an agent skill from HKUDS/CLI-Anything. Command-line interface for Slay the Spire 2 - Control the real game through a local bridge mod HTTP API. Reads normalized game state and sends action commands for combat, navigation, rewards, and menu management.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Backend & APIs, covering REST APIs. The repository describes itself as: "CLI-Anything: Making ALL Software Agent-Native" -- CLI-Hub: https://clianything.cc/. The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve REST APIs

Example prompts

  • “/cli-anything-slay-the-spire-ii”

Requirements

  • Python 3

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. Install the CLI
  2. Build and install the bridge mod
  3. Enable the mod and verify

What it can do on your machine

Read from SKILL.md and the folder at commit 34f5195. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git
    • pip

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git and pip, 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

CLI Anything Slay The Spire Ii loads about 1.4k tokens when it runs. Until then it costs about 61 tokens; SKILL.md has 533 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~61
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

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 passed

The automated check found no risky patterns in SKILL.md.

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 HKUDS/CLI-Anything at commit 34f5195, republished under its Apache-2.0 licence (© HKUDS). 533 words, ~1,431 tokens.

Download SKILL.mdSave it as .claude/skills/cli-anything-slay-the-spire-ii/SKILL.md (or your agent's skills folder).
name
cli-anything-slay-the-spire-ii
description
Command-line interface for Slay the Spire 2 - Control the real game through a local bridge mod HTTP API. Reads normalized game state and sends action commands for combat, navigation, rewards, and menu management.

cli-anything-slay-the-spire-ii

A stateful command-line interface for controlling the real Slay the Spire 2 game through the local STS2_Bridge mod. The CLI reads normalized game state and sends action commands via a local HTTP API at localhost:15526.

Installation

This CLI requires a bridge mod that runs inside the game process. Both the CLI and the bridge are distributed from the same repository:

https://github.com/HKUDS/CLI-Anything
1. Install the CLI
bash
git clone https://github.com/HKUDS/CLI-Anything.git
cd CLI-Anything/slay_the_spire_ii/agent-harness
pip install -e .
2. Build and install the bridge mod

The bridge mod is a .NET 9 plugin that must be compiled and installed into the game directory. Full instructions are in the repository README, but the short version is:

bash
cd CLI-Anything/slay_the_spire_ii/agent-harness/bridge/plugin
./build.sh
cd ../install
./install_bridge.sh

If the build script cannot auto-detect the game data directory, set STS2_GAME_DATA_DIR explicitly:

bash
STS2_GAME_DATA_DIR="/path/to/data_sts2" ./build.sh
3. Enable the mod and verify

Launch Slay the Spire 2 via Steam, enable the STS2_Bridge mod in the mod manager, then verify the connection:

bash
cli-anything-sts2 state

If this returns JSON, the CLI and bridge are connected.

Prerequisites:

  • Python 3.10+
  • Slay the Spire 2 (Steam) with STS2_Bridge mod enabled
  • .NET 9 SDK (only needed to build the bridge mod)

Usage

Basic Commands
bash
# Read normalized game state (always start here)
cli-anything-sts2 state

# Start interactive REPL mode (default)
cli-anything-sts2

# Show all available commands
cli-anything-sts2 --help

Command Groups

State Inspection
CommandDescription
stateNormalized state with decision field
raw-stateRaw bridge JSON
Main Menu
CommandDescription
continue-gameContinue a saved run
start-game --character IRONCLAD --ascension 0Start a new run
abandon-gameAbandon the current save
return-to-main-menuReturn to menu from any screen

Characters: IRONCLAD, SILENT, DEFECT, NECROBINDER, REGENT

Combat
CommandDescription
play-card <index> [--target <enemy_id>]Play a card from hand
use-potion <slot> [--target <enemy_id>]Use a potion
end-turnEnd the current turn
Map & Room Flow
CommandDescription
choose-map <index>Select a map node
proceedLeave the current room
Rewards
CommandDescription
claim-reward <index>Claim a combat reward
pick-card-reward <index>Pick a card reward
skip-card-rewardSkip the card reward
claim-treasure-relic <index>Claim a treasure relic
select-relic <index>Select a relic
skip-relic-selectionSkip relic selection
Events & Rest Sites
CommandDescription
event <index>Choose an event option
advance-dialogueAdvance dialogue-only events
rest <index>Choose a campfire action
Show full SKILL.md (210 more words)Show less
Shop
CommandDescription
shop-buy <index>Buy from the shop
Card/Relic Selection Overlays
CommandDescription
select-card <index>Select a card in overlay
confirm-selectionConfirm the current selection
cancel-selectionCancel the current selection
combat-select-card <index>Select a card during combat overlay
combat-confirm-selectionConfirm combat card selection
Raw Action
CommandDescription
action <name> --kv key=valueSend a raw bridge action

Decision States

The state command returns JSON with a decision field indicating the current game screen. Route your next command based on this value:

DecisionMeaningTypical Next Commands
menuMain menucontinue-game, start-game
combat_playIn combat, your turnplay-card, use-potion, end-turn
hand_selectCard selection overlaycombat-select-card, combat-confirm-selection
map_selectMap node selectionchoose-map
game_overRun endedreturn-to-main-menu
combat_rewardsPost-combat rewardsclaim-reward, proceed
card_rewardCard reward pickpick-card-reward, skip-card-reward
event_choiceEvent screenevent, advance-dialogue
rest_siteCampfirerest
shopShop screenshop-buy, proceed
card_selectCard selection screenselect-card, confirm-selection
relic_selectRelic selectionselect-relic, skip-relic-selection
treasureTreasure roomclaim-treasure-relic, proceed

Configuration

OptionDefaultDescription
--base-urlhttp://localhost:15526Bridge API URL
--timeout10.0HTTP timeout in seconds

For AI Agents

  1. Always read state first to get the decision field
  2. Re-read state after each action - indices and energy change during combat
  3. Check return codes - 0 for success, non-zero for errors
  4. Parse stdout for JSON output

© HKUDS, 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 skills/cli-anything-slay-the-spire-ii of HKUDS/CLI-Anything.

Open the folder on GitHubat commit 34f5195

Compare with similar skills

CLI Anything Slay The Spire Ii 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.

CLI Anything Slay The Spire Ii compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
CLI Anything Slay The Spire Ii this skillHKUDS/CLI-Anything52k—~1.4kAutomated safety check: PassApache-2.0
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Nodejs Backend Patternsever-works/ever-works16218 repos~4kAutomated safety check: PassAGPL-3.0
OpenAPI to MCP Servermcp-use/mcp-use11k—~5.2kAutomated safety check: PassApache-2.0
Use Yaakmountain-loop/yaak19k—~1.9kAutomated safety check: PassMIT
API DesignerJeffallan/claude-skills12k1 repos~2kAutomated safety check: PassMIT

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Categories

Questions about CLI Anything Slay The Spire Ii

What does CLI Anything Slay The Spire Ii do?

Command-line interface for Slay the Spire 2 - Control the real game through a local bridge mod HTTP API. CLI Anything Slay The Spire Ii is an agent skill from HKUDS/CLI-Anything. Command-line interface for Slay the Spire 2 - Control the real game through a local bridge mod HTTP API.

When should I use CLI Anything Slay The Spire Ii?

CLI Anything Slay The Spire Ii fits situations like: tasks that involve REST APIs.

How do I install CLI Anything Slay The Spire Ii in Claude Code?

Run `npx skills add HKUDS/CLI-Anything --skill cli-anything-slay-the-spire-ii -a claude-code`. Or copy the skill folder (skills/cli-anything-slay-the-spire-ii in HKUDS/CLI-Anything) into .claude/skills/cli-anything-slay-the-spire-ii in your project. Claude Code loads it when a task matches its description.

How do I install CLI Anything Slay The Spire Ii in Codex?

Run `npx skills add HKUDS/CLI-Anything --skill cli-anything-slay-the-spire-ii -a codex`. Or copy the skill folder (skills/cli-anything-slay-the-spire-ii in HKUDS/CLI-Anything) into .agents/skills/cli-anything-slay-the-spire-ii in your project. Codex loads it when a task matches its description.

Can I use CLI Anything Slay The Spire Ii 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 HKUDS/CLI-Anything --skill cli-anything-slay-the-spire-ii -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cli-anything-slay-the-spire-ii, .gemini/skills/cli-anything-slay-the-spire-ii, .github/skills/cli-anything-slay-the-spire-ii and .opencode/skills/cli-anything-slay-the-spire-ii in your project.

What does CLI Anything Slay The Spire Ii need to run?

Going by SKILL.md and its folder, CLI Anything Slay The Spire Ii needs the command-line tools its instructions call (git and pip). Our summary lists: Python 3.

Does CLI Anything Slay The Spire Ii access the network?

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

Is CLI Anything Slay The Spire Ii safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does CLI Anything Slay The Spire Ii use?

CLI Anything Slay The Spire Ii is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does CLI Anything Slay The Spire Ii use?

About 1.4k tokens (SKILL.md is roughly 5.7k 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 CLI Anything Slay The Spire Ii?

Skills that share tags, products or a category with CLI Anything Slay The Spire Ii: Paperclip (paperclipai/paperclip, 100k stars), Nodejs Backend Patterns (ever-works/ever-works, 162 stars), OpenAPI to MCP Server (mcp-use/mcp-use, 11k stars) and Use Yaak (mountain-loop/yaak, 19k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains CLI Anything Slay The Spire Ii?

HKUDS (a GitHub organization) maintains it in HKUDS/CLI-Anything, which has 51,809 GitHub stars. The repository holds 78 skills in this directory. The repository was last updated on September 22, 2026.

Source: HKUDS/CLI-Anything on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.