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 kavyabhand/claude-eli5 --skill eli-briefgit clone --depth 1 https://github.com/kavyabhand/claude-eli5Wrote 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/kavyabhand/claude-eli5/eli-brief)<a href="https://agentmods.dev/skills/kavyabhand/claude-eli5/eli-brief"><img src="https://agentmods.dev/badge/skills/kavyabhand/claude-eli5/eli-brief/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/kavyabhand/claude-eli5/eli-brief"><img src="https://agentmods.dev/badge/skills/kavyabhand/claude-eli5/eli-brief.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 | $0.00075 | $0.00352 |
| Opus 5 | $0.00037 | $0.00176 |
| Sonnet 5 | $0.00015 | $0.00070 |
| Haiku 4.5 | $0.00007 | $0.00035 |
Grade A, and why
eli-brief 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 8d 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.
What it actually says
ELI-BRIEF — Executive Summary
Exactly 3 sentences. Safe to paste into Slack, email, or a board deck.
Format
[What it is] — one concrete analogy, zero jargon.
[Why it matters] — the real-world impact or user benefit.
[What to watch for / what action is needed] — the one thing they should know or decide.
Rules
- Each sentence ≤ 20 words
- No technical terms without an immediate plain parenthetical — but prefer to avoid them entirely
- Assume the reader is smart and busy, not technical
- Tone: confident and clear, not dumbed-down
- If the topic wasn't stated in the command, ask: "What's the topic and who's the audience?"
- After the 3 sentences, offer: "Need a longer version? Try /eli-adult [topic]"
Example
Input: /eli-brief rate limiting
Output:
Rate limiting is like a bouncer at a door who lets in only a set number of people per minute. It stops one bad actor from overwhelming a system and slowing it down for everyone else. Right now our API allows 100 requests per minute per user — if that's causing issues, we can raise or lower it.
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.
- 8d ago First seen · 39 lines · 75 tokens per session scan A e9f205376d29
eli-brief is a skill published in the GitHub repository kavyabhand/claude-eli5 (21 stars, last pushed 4mo ago), licensed MIT. It adds 75 tokens to every session and 352 once invoked, about $0.0004 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 2026-08-30.
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