Borrowing it
Nothing to install: this file belongs to xDido/chiron. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/xDido/chiron/main/.agents/skills/teach-chiron/SKILL.mdgit clone --depth 1 https://github.com/xDido/chironWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/xdido/chiron/teach-chiron)<a href="https://agentmods.dev/skills/xdido/chiron/teach-chiron"><img src="https://agentmods.dev/badge/skills/xdido/chiron/teach-chiron/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/xdido/chiron/teach-chiron"><img src="https://agentmods.dev/badge/skills/xdido/chiron/teach-chiron.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00043 | $0.02744 |
| Opus 5 | $0.00022 | $0.01372 |
| Sonnet 5 | $0.00009 | $0.00549 |
| Haiku 4.5 | $0.00004 | $0.00274 |
Grade A, and why
teach-chiron scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 200 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/teach-chiron — generate project context for chiron
Run this once per project. It scans the full codebase and writes .chiron-context.md — a comprehensive reference that all other chiron skills read instead of re-scanning the project.
Re-run anytime to refresh the context (e.g., after major refactoring, adding new modules, or changing project structure).
$ARGUMENTS
If arguments are provided, treat them as a hint about what changed or what to focus on. Otherwise, do a full scan.
CRITICAL — user instructions always win
Check .agents/README.md first. If user instructions conflict with this command's behavior, follow the user.
What to include vs. skip
High signal (ALWAYS include)
- Files that define the API surface — routes, handlers, controllers, gRPC service definitions
- Files that define data models — DB schemas, ORM models, types, interfaces, protobuf/OpenAPI specs
- Files that wire the app together — DI/bootstrap, middleware registration, config loading, app factory
- Files with business logic — services, use cases, domain logic, core algorithms
- Test files — at least enough to understand the testing patterns (framework, mocking, fixtures)
- Config files — project manifest, linter config, CI/CD, Docker, env examples
- Documentation — README, CLAUDE.md, AGENTS.md, architecture docs
Low signal (SKIP these)
- Generated code —
node_modules/,vendor/,dist/,build/,.next/,target/,bin/,obj/ - Lock files —
package-lock.json,yarn.lock,go.sum,Cargo.lock,pom.xmldependency tree - Binary files — images, fonts, compiled assets,
.wasm,.so,.dll - IDE config —
.vscode/,.idea/,*.code-workspace - Git internals —
.git/ - Chiron's own files —
.claude/skills/,.cursor/skills/, etc. (don't scan yourself) - Auto-generated migrations — unless they reveal the current schema; prefer the model files instead
- Duplicate/symlinked content — if the same code appears via symlinks or copies, note it once
- Test fixtures/snapshots — large JSON fixtures, snapshot files (note their existence, don't dump contents)
- Minified/bundled code —
.min.js,bundle.*, webpack output
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 200 lines · 43 tokens per session scan A 620922b973f5
teach-chiron is a skill published in the GitHub repository xDido/chiron (2 stars, last pushed 4mo ago), licensed MIT. It adds 43 tokens to every session and 2,744 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
extremerouter-web-search
Web search via ExtremeRouter /v1/search using Tavily / Exa / Brave / Serper / SearXNG / Google PSE / Linkup / SearchAPI / You.com / Perplexity. Use when the user wants to search the web, look up information, find articles, or query a search engine.
extremerouter-stt
Speech-to-text via ExtremeRouter /v1/audio/transcriptions using OpenAI Whisper / Groq / Gemini / Deepgram / AssemblyAI / NVIDIA / HuggingFace models. Use when the user wants to transcribe audio, convert speech to text, or get subtitles from audio files.
extremerouter
Entry point for ExtremeRouter — local/remote AI gateway with OpenAI-compatible REST for chat, image, TTS, embeddings, web search, web fetch. Use when the user mentions ExtremeRouter, NINEROUTERURL, or wants AI without writing provider boilerplate. This skill covers setup + indexes capability skills; fetch the relevant…
extremerouter-web-fetch
Fetch URL → markdown / text / HTML via ExtremeRouter /v1/web/fetch using Firecrawl / Jina Reader / Tavily Extract / Exa Contents. Use when the user wants to scrape a webpage, extract URL content, read article, or convert a URL to markdown.
extremerouter-image
Generate images via ExtremeRouter /v1/images/generations using OpenAI / Gemini Imagen / DALL-E / FLUX / MiniMax / SDWebUI / ComfyUI / Codex models. Use when the user wants to create, generate, draw, or render an image, picture, or text-to-image (txt2img).
extremerouter-embeddings
Generate vector embeddings via ExtremeRouter /v1/embeddings using OpenAI / Gemini / Mistral / Voyage / Nvidia / GitHub embedding models for RAG, semantic search, similarity. Use when the user wants embeddings, vectors, RAG, semantic search, or to embed text.