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 agentmods add skills/ibrahimmian36/leanscreen/screennpx skills add ibrahimmian36/leanscreen --skill screengit clone --depth 1 https://github.com/ibrahimmian36/leanscreenWrote 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/ibrahimmian36/leanscreen/screen)<a href="https://agentmods.dev/skills/ibrahimmian36/leanscreen/screen"><img src="https://agentmods.dev/badge/skills/ibrahimmian36/leanscreen/screen.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 | $0.00000 | $0.00894 |
| Opus 5 | $0.00000 | $0.00447 |
| Sonnet 5 | $0.00000 | $0.00179 |
| Haiku 4.5 | $0.00000 | $0.00089 |
Grade A, and why
screen scanned grade A with 1 finding 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 4d 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.
Subtle steeringlowPrompt injection
Instructions that bias recommendations or shape behaviour without the user noticing.
Never tell the user a statement "is faithful," "is correct," or "passed Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- 4d ago First seen · 72 lines · 0 tokens per session scan A 4ba69177e1c5
screen is a skill published in the GitHub repository ibrahimmian36/leanscreen (6 stars, last pushed 16d ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 894 tokens. A static security scan graded it A with 1 finding (subtle steering). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
formalize
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formalize-from-magma
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lean-session
Bring up, check, or repair the live Lean session: the terminal watcher over Scratch/Current.lean, the browser dashboard, and the VS Code infoview. Use when the user says start a session, open the windows, show me the live view, is the watcher running, restart the dashboard, nothing is updating, or when a formalization…
mathlib-lookup
Find and verify the name of a Mathlib lemma, theorem, definition, instance or tactic, and report its real elaborated type. Use whenever the user asks what a theorem is called, whether Mathlib has some fact, what the exact statement or hypotheses of a lemma are, or what the API of a type or namespace looks like; and…
mathlib-api
Evidence-driven workflow for designing a Mathlib definition and the API around it. Use when adding a new structure/def intended for mathlib; when choosing between design alternatives (index type as field vs parameter, Set vs indexed family, coarse set vs finer indexed structure and when the fine one should exist at…
lean-probe
Fast Lean 4 proof verification for coding agents via the LeanProbe MCP server's warm REPL. Use when you need to know whether Lean 4 code compiles (no errors, no sorry), iterate on a declaration inside a Lake/Mathlib project, test a replacement proof candidate, or explore a goal tactic by tactic — far faster than lake…