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 onlygian/G-Forge --skill g-updategit clone --depth 1 https://github.com/onlygian/G-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/onlygian/g-forge/g-update)<a href="https://agentmods.dev/skills/onlygian/g-forge/g-update"><img src="https://agentmods.dev/badge/skills/onlygian/g-forge/g-update/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/onlygian/g-forge/g-update"><img src="https://agentmods.dev/badge/skills/onlygian/g-forge/g-update.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 | $0.00069 | $0.03207 |
| Opus 5.5 | $0.00028 | $0.01283 |
| Sonnet 5.5 | $0.00014 | $0.00641 |
| Haiku 4.5 | $0.00007 | $0.00321 |
Grade C, and why
g-update scanned grade C with 2 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
`[plugin-root]` = the script's `PLUGIN_ROOT` (self-host: the project root; consumer: the parent of `skills/` under the cache Glob). On `PLUGIN_ROOT: MISSING`, tell the developer: "Could not find the G-Forge plugin in ~/. Enumerates other installed skillsmediumAgent snooping
Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.
**6c** — installed architecture-skill copies at `.claude/skills/architecture-[stack]/SKILL.md` (written by `/g-specialize`, its "Also after writing each agent file" step). Enumerate instances from disk — `ls -d .claude/s The source is not reproduced here
Licensed GPL-3.0
The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 First seen · 145 lines · 69 tokens per session scan C f7542abba024
g-update is a skill published in the GitHub repository onlygian/G-Forge (4 stars, last pushed 2d ago), licensed GPL-3.0. It adds 69 tokens to every session and 3,207 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it C with 2 findings (reads agent configuration directories, enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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