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Agent skill

Sillytavern API Reference

by LiarMTTT in LiarMTTT/TavernWeave

Verify exact SillyTavern, Tavern Helper / JS-Slash-Runner, STScript, macro, prompt-injection, worldbook, EJS, MVU, and runtime-library capabilities before implementing or reviewing rolecard…

Custom licenceAuto-check passedAgent Workflows

Install Sillytavern API Reference

skills CLI
$ npx skills add LiarMTTT/TavernWeave --skill sillytavern-api-reference -a claude-code

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

GitHub CLI
$ gh skill install LiarMTTT/TavernWeave sillytavern-api-reference --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/LiarMTTT/TavernWeave.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sillytavern-api-reference .claude/skills/sillytavern-api-reference && 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
sillytavern-api-reference
GitHub stars
150
Token cost
~2.4k tokens
SKILL.md length
1,140 words
Files
3 (incl. references)
Skills in repo
22
Repo updated
First seen
Licence
Custom licence

At a glance

Verify exact SillyTavern, Tavern Helper / JS-Slash-Runner, STScript, macro, prompt-injection, worldbook, EJS, MVU, and runtime-library capabilities before implementing or reviewing rolecard…

  • Works in 7 steps: Capture the target versions and… → Identify whether each dependency is… → Search the authority that matches those… → …
  • A task depends on a function signature
  • SKILL.md covers Shared communication, Resolve the runtime surface, Verification workflow and Confidence rules, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Sillytavern API Reference is an agent skill from LiarMTTT/TavernWeave. Verify exact SillyTavern, Tavern Helper / JS-Slash-Runner, STScript, macro, prompt-injection, worldbook, EJS, MVU, and runtime-library capabilities before implementing or reviewing rolecard automation. Use when a task depends on a function signature, event payload, slash-command grammar, variable scope, message-floor operation, generation option, runtime-symbol provider, Git/CDN loader, or version-sensitive extension capability.

Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `agents/openai.yaml` and `references/core-facts.md`).

It sits in Agent Workflows, covering Hooks and plugins and Prompt injection and agent security. It works with Git. The repository describes itself as: Noncommercial Agent Skills for SillyTavern rolecard engineering.

When your agent uses it

  • A task depends on a function signature
  • Slash-command grammar
  • Message-floor operation
  • Generation option

Example prompts

  • “/sillytavern-api-reference”

Workflow steps

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

  1. Capture the target versions and capabilities. In a Tavern Helper context, prefer getTavernVersion() and getTavernHelperVersion(). Probe…
  2. Identify whether each dependency is host-provided, embedded in the card, or loaded
  3. Search the authority that matches those versions. Prefer runtime source or official versioned documentation, then matching declarations…
  4. Copy the exact symbol spelling, parameter shape, return type, event constant, or command grammar. Never reconstruct it from memory.
  5. Record provenance beside version-sensitive work using this compact form
  6. Implement the narrowest supported API and add capability failure behavior. Do not silently fall back to private host DOM, deprecated APIs…
  7. Verify the call in the intended context. A browser console probe does not prove the same global exists inside a message iframe, script…

What it can do on your machine

Read from SKILL.md and the folder at commit d9da0b0. 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

    No scripts in the folder and no shell commands in SKILL.md.

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

  • Network

    No URLs in SKILL.md.

    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

Sillytavern API Reference loads about 2.4k tokens when it runs, and up to ~5k if it reads all its reference files. Until then it costs about 115 tokens; SKILL.md has 1,140 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~115
When it runs · the whole SKILL.md, loaded when a task matches
~2.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~5k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,140 words (~2,356 tokens).

“Apply TW plain-language and guidance rules to user-facing work. Explain terms in context; preserve the user's chosen 新人/入门/熟练/老手 level without inferred changes. 新人 and 入门 receive detailed explanations; every level receives needed and bug explanations unless the user explicitly waives…”

— opening of SKILL.md by LiarMTTT, Custom licence
name
sillytavern-api-reference

Read the full SKILL.md on GitHub

Files

SKILL.md and 2 other files (references) in skills/sillytavern-api-reference of LiarMTTT/TavernWeave.

  • SKILL.md
  • agents/openai.yaml
  • references/core-facts.md

Open the folder on GitHubat commit d9da0b0

Compare with similar skills

Sillytavern API Reference 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.

Sillytavern API Reference compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Sillytavern API Reference this skillLiarMTTT/TavernWeave150—~2.4kAutomated safety check: PassCustom licence
Compound Engineering SetupEveryInc/compound-engineering-plugin25k—~2kAutomated safety check: PassMIT
Readyprekuter/dryforge4101 repos~6.8kAutomated safety check: PassApache-2.0
Command Creatormeshery/meshery-operator1514 repos~1.7kAutomated safety check: PassApache-2.0
Migrationprekuter/dryforge4101 repos~3.2kAutomated safety check: PassApache-2.0
Publish Plugins Version Bumpvinta/hal-90001381 repos~1kAutomated safety check: PassMIT

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Works with

Categories

Questions about Sillytavern API Reference

What does Sillytavern API Reference do?

Verify exact SillyTavern, Tavern Helper / JS-Slash-Runner, STScript, macro, prompt-injection, worldbook, EJS, MVU, and runtime-library capabilities before implementing or reviewing rolecard…. Sillytavern API Reference is an agent skill from LiarMTTT/TavernWeave. Verify exact SillyTavern, Tavern Helper / JS-Slash-Runner, STScript, macro, prompt-injection, worldbook, EJS, MVU, and runtime-library capabilities before implementing or reviewing rolecard automation.

When should I use Sillytavern API Reference?

Sillytavern API Reference fits situations like: A task depends on a function signature; slash-command grammar; message-floor operation; generation option.

How do I install Sillytavern API Reference in Claude Code?

Run `npx skills add LiarMTTT/TavernWeave --skill sillytavern-api-reference -a claude-code`. Or copy the skill folder (skills/sillytavern-api-reference in LiarMTTT/TavernWeave) into .claude/skills/sillytavern-api-reference in your project. Claude Code loads it when a task matches its description.

How do I install Sillytavern API Reference in Codex?

Run `npx skills add LiarMTTT/TavernWeave --skill sillytavern-api-reference -a codex`. Or copy the skill folder (skills/sillytavern-api-reference in LiarMTTT/TavernWeave) into .agents/skills/sillytavern-api-reference in your project. Codex loads it when a task matches its description.

Can I use Sillytavern API Reference 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 LiarMTTT/TavernWeave --skill sillytavern-api-reference -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sillytavern-api-reference, .gemini/skills/sillytavern-api-reference, .github/skills/sillytavern-api-reference and .opencode/skills/sillytavern-api-reference in your project.

What does Sillytavern API Reference need to run?

SKILL.md names no scripts, command-line tools or credentials: Sillytavern API Reference is instructions for the agent only.

Does Sillytavern API Reference access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Sillytavern API Reference 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 Sillytavern API Reference use?

Sillytavern API Reference has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Sillytavern API Reference use?

About 2.4k tokens (SKILL.md is roughly 9.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.6k tokens, read only when the agent opens those files.

What are the alternatives to Sillytavern API Reference?

Skills that share tags, products or a category with Sillytavern API Reference: Compound Engineering Setup (EveryInc/compound-engineering-plugin, 25k stars), Ready (prekuter/dryforge, 410 stars), Command Creator (meshery/meshery-operator, 151 stars) and Migration (prekuter/dryforge, 410 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sillytavern API Reference?

LiarMTTT (a GitHub user) maintains it in LiarMTTT/TavernWeave, which has 150 GitHub stars. The repository holds 22 skills in this directory. The repository was last updated on October 4, 2026.

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