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 lingochunk/mcp --skill lingochunk-skill-authorgit clone --depth 1 https://github.com/lingochunk/mcpWrote 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/lingochunk/mcp/lingochunk-skill-author)<a href="https://agentmods.dev/skills/lingochunk/mcp/lingochunk-skill-author"><img src="https://agentmods.dev/badge/skills/lingochunk/mcp/lingochunk-skill-author.svg" alt="Measured on agentmods" 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 | $0.00104 | $0.01974 |
| Opus 5 | $0.00052 | $0.00987 |
| Sonnet 5 | $0.00021 | $0.00395 |
| Haiku 4.5 | $0.00010 | $0.00197 |
Grade A, and why
lingochunk-skill-author 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 6d 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 — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.
LingoChunk skill author (the meta-skill)
Turn one finished lesson into a repeatable FORMAT. The user has typically refined a lesson by trial - co-edit rounds until the structure is exactly right - and now wants "this shape again, for any episode". That shape is a skill: a markdown playbook that any MCP-capable agent (claude.ai, Claude Code, ChatGPT dev mode, ...) can follow to rebuild the format from fresh episode content. A skill is ONLY text - the capability lives in the LingoChunk MCP tools, which are identical on every client, and the server stays the validator of record - so a skill travels without trust machinery: a bad one produces validation errors, not bad lessons.
This skill uses the lingochunk MCP tools. If they are not available, tell
the user to add the LingoChunk MCP server (see the plugin README) and stop.
When to use
- "Make a skill out of this lesson so we can do the same for next week's episode."
- "Save this lesson format as a template."
- "I want my students' agents to be able to build lessons in this format."
- "Turn the way we structured this into something reusable."
Not for building a lesson (that is lingochunk-lesson or a skill you
already made), and not for one-off edits to an existing lesson
(update_lesson directly).
Options to settle first (ask only what the user left open)
- Source lesson: which saved lesson embodies the format
(
list_lessonsif they don't say; usually the one just co-edited). - How strict a clone: exact format (same spine, same exercise types, same counts) or a genre (the spine and voice fixed, the exercise mix allowed to vary by episode/level - say which parts flex).
- Where it lives: private (the user keeps the markdown; default) or
contributed to the public
lingochunk-mcprepo for everyone. Never assume publication.
Workflow
- Fetch and read the lesson.
get_lesson->document. Extract the format signature:- the spine: the
sectionsequence and what sits under each; - the exercise mix: which blocks, how many items, where anchors and
audiowindows are used; - the voice: instruction style and language,
prosetone, dialoguenotehabits,show_sentenceusage, highlight policy, review-block shape; - the policies implied: level pitch, which FSRS states get drilled, glossary size.
- the spine: the
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.
- 6d ago First seen · 158 lines · 104 tokens per session scan A 0b0a0dbe1658
lingochunk-skill-author is a skill published in the GitHub repository lingochunk/mcp (0 stars, last pushed 1mo ago), licensed MIT. It adds 104 tokens to every session and 1,974 once invoked, about $0.0005 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.
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