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/forgeyclap/claude-forge/gsap-corenpx skills add ForgeyClap/claude-forge --skill gsap-coregit clone --depth 1 https://github.com/ForgeyClap/claude-forgeWrote 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/forgeyclap/claude-forge/gsap-core)<a href="https://agentmods.dev/skills/forgeyclap/claude-forge/gsap-core"><img src="https://agentmods.dev/badge/skills/forgeyclap/claude-forge/gsap-core.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 | $0.00128 | $0.04370 |
| Opus 5 | $0.00064 | $0.02185 |
| Sonnet 5 | $0.00026 | $0.00874 |
| Haiku 4.5 | $0.00013 | $0.00437 |
Grade E, and why
gsap-core scanned grade E with 3 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 2d 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- Source: https://github.com/greensock/gsap-skills Pinned commit: aed9cfd3277740755f6bfc1155c7aa645403b760 (2026-04-21T23:47:02Z) License: MIT (c) 2026 GreenSock Adaptation: vendored (not npx skills add) -- pinned mar Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
to non-docs endpoints, no credential/secret/token exfil, no rm -rf) found in any of the 8 SKILL.md files Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
no injection/exec/exfiltration patterns (no "ignore previous", no curl|bash, no exec(/subprocess/fetch( This is a copy
86% identical to gsap-core — 25 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.
How it starts
The opening of the file, as written. The whole thing — 280 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GSAP Core
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.
- 2d ago First seen · 280 lines · 128 tokens per session scan E 999993fd6aa7
gsap-core is a skill published in the GitHub repository ForgeyClap/claude-forge (2 stars, last pushed 1mo ago), licensed MIT. It adds 128 tokens to every session and 4,370 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it E with 3 findings (hidden instructions, recursive force delete, makes network calls). It is 86% identical to gsap-core, differing in 25 lines, and is treated as a copy.
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