Borrowing it
Nothing to install: this file belongs to xberg-io/tree-sitter-language-pack. 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/xberg-io/tree-sitter-language-pack/main/.agents/skills/api/SKILL.mdgit clone --depth 1 https://github.com/xberg-io/tree-sitter-language-packWrote 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/xberg-io/tree-sitter-language-pack/api)<a href="https://agentmods.dev/skills/xberg-io/tree-sitter-language-pack/api"><img src="https://agentmods.dev/badge/skills/xberg-io/tree-sitter-language-pack/api/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/xberg-io/tree-sitter-language-pack/api"><img src="https://agentmods.dev/badge/skills/xberg-io/tree-sitter-language-pack/api.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 | $0.00012 | $0.00339 |
| Opus 5.5 | $0.00005 | $0.00136 |
| Sonnet 5.5 | $0.00002 | $0.00068 |
| Haiku 4.5 | $0.00001 | $0.00034 |
Grade A, and why
api 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.
This is a copy
88% identical to api — 12 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
tree-sitter-language-pack API Reference
Use this skill when working with tree-sitter-language-pack generated language APIs, data types, configuration, or error surfaces.
Generated reference pages:
- docs-site/src/content/docs/reference/api-python.md
- docs-site/src/content/docs/reference/api-typescript.md
- docs-site/src/content/docs/reference/api-ruby.md
- docs-site/src/content/docs/reference/api-php.md
- docs-site/src/content/docs/reference/api-c.md
- docs-site/src/content/docs/reference/api-go.md
- docs-site/src/content/docs/reference/api-java.md
- docs-site/src/content/docs/reference/api-csharp.md
- docs-site/src/content/docs/reference/api-elixir.md
- docs-site/src/content/docs/reference/api-wasm.md
- docs-site/src/content/docs/reference/api-dart.md
- docs-site/src/content/docs/reference/api-kotlin-android.md
- docs-site/src/content/docs/reference/api-swift.md
- docs-site/src/content/docs/reference/api-zig.md
- docs-site/src/content/docs/reference/api-rust.md
- docs-site/src/content/docs/reference/configuration.md
- docs-site/src/content/docs/reference/types.md
- docs-site/src/content/docs/reference/errors.md
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 Changed · -1 lines b4f0ce281b8f
- 2mo ago First seen · 35 lines · 12 tokens per session scan A 2c0d8dbbb52a
api is a skill published in the GitHub repository xberg-io/tree-sitter-language-pack (479 stars, last pushed yesterday), licensed MIT. It adds 12 tokens to every session and 339 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to api, differing in 12 lines, and is treated as a copy.
Other skills, from other repositories
crawlberg
Crawl, scrape, and convert websites to Markdown using the local crawlberg CLI and its MCP server. Use when the user wants to fetch a page, follow links across a domain, enumerate URLs, or drive a real browser. Covers installation, the subcommands (scrape, crawl, map, interact, batch-scrape, batch-crawl, download…
crawlberg-automating-the-browser
Use when extracting a page needs scripted interaction first — click, type, press a key, scroll, wait, screenshot, or run JS before capturing the DOM. Covers crawlberg interact URL --actions with the real action schema, result shape, limits, and external-CDP options.
crawlberg-crawling-a-site
Use when the user wants to follow links across a domain and capture every reachable page as Markdown. Covers crawlberg crawl with depth, page caps, concurrency, rate limiting, domain scoping, robots, and output selection.
crawlberg-headless-fallback
Use when a static fetch returns nothing useful and the page needs a real browser. Covers --browser-mode auto|always|never, external CDP via --browser-endpoint, symptoms of JS-only pages and WAF blocks, and the performance cost.
crawlberg-scraping-html-to-markdown
Use when the user wants a single page rendered as clean Markdown plus structured metadata. Covers crawlberg scrape URL, JSON vs Markdown output, what metadata is returned, and how to handle JS-heavy pages.
crawlberg-serving-the-api
Use when the user wants a long-running HTTP service for scrape/crawl/map instead of one-shot CLI calls or the MCP server — for example wiring crawlberg into other apps over REST. Covers crawlberg serve, the Firecrawl-v1-compatible endpoints, --host/--port, and when to prefer it.