Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add pledgeandgrow/pledge-skills --skill babelgit clone --depth 1 https://github.com/pledgeandgrow/pledge-skillsWrote 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/pledgeandgrow/pledge-skills/babel)<a href="https://agentmods.dev/skills/pledgeandgrow/pledge-skills/babel"><img src="https://agentmods.dev/badge/skills/pledgeandgrow/pledge-skills/babel/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/pledgeandgrow/pledge-skills/babel"><img src="https://agentmods.dev/badge/skills/pledgeandgrow/pledge-skills/babel.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 | $0.00034 | $0.01495 |
| Opus 5.5 | $0.00014 | $0.00598 |
| Sonnet 5.5 | $0.00007 | $0.00299 |
| Haiku 4.5 | $0.00003 | $0.00150 |
Grade A, and why
babel-docs 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 1mo 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 — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Babel
Babel is a JavaScript compiler — a toolchain mainly used to convert ECMAScript 2015+ code into backwards-compatible JavaScript in current and older browsers or environments.
Version: Babel 7.x / 8.x
Documentation: babeljs.io/docs
GitHub: github.com/babel/babel
Quick Reference
| Topic | File |
|---|---|
| Getting Started & Learn ES2015 (What is Babel, usage guide, installation, plugins & presets intro, configuration intro, polyfill, Learn ES2015 features: arrows, classes, destructuring, template strings, modules, generators, promises, proxies, symbols, etc., editor integrations) | getting-started.md |
| Configuration & Options (config file types: babel.config.json/.babelrc.json/package.json/JS configs, project-wide vs file-relative config, monorepos, config function API: api.cache/api.env/api.caller/api.assertVersion, all options: primary/config loading/plugin & preset/output targets/config merging/source maps/misc/code generator/AMD-UMD-SystemJS, print effective configs, config merging, compiler assumptions) | configuration.md |
| Plugins & Presets (using plugins, transform/syntax plugins, plugin ordering, plugin options, plugin development, full plugins list by ES version: ES3-ES2026 + TC39 proposals + module formats + React + Flow + TypeScript + misc + syntax-only, presets: official presets, creating presets, preset ordering, preset options, @babel/preset-env with all options, @babel/preset-react with all options, @babel/preset-typescript with all options, @babel/preset-flow) | plugins-and-presets.md |
| API & CLI Reference (@babel/cli: all CLI flags and usage, @babel/core: transform/transformSync/transformAsync/transformFile/transformFromAst/parse APIs + advanced APIs, @babel/parser: options and plugins, @babel/generator: options, @babel/traverse: visitor pattern, path object, scope, @babel/types: builders, type checkers, assertions, utilities, @babel/template, @babel/standalone, @babel/register, @babel/eslint-parser) | api-and-cli.md |
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 92 lines · 34 tokens per session scan A 5477e08045a0
babel-docs is a skill published in the GitHub repository pledgeandgrow/pledge-skills (10 stars, last pushed 3mo ago), licensed MIT. It adds 34 tokens to every session and 1,495 once invoked, about $0.0001 per session on Opus 5.5. 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.
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