Borrowing it
Nothing to install: this file belongs to Lexideck-Technologies/Lexideck2026. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Lexideck-Technologies/Lexideck2026/main/.agents/skills/mass/SKILL.mdgit clone --depth 1 https://github.com/Lexideck-Technologies/Lexideck2026Wrote 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/lexideck-technologies/lexideck2026/mass)<a href="https://agentmods.dev/skills/lexideck-technologies/lexideck2026/mass"><img src="https://agentmods.dev/badge/skills/lexideck-technologies/lexideck2026/mass/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/lexideck-technologies/lexideck2026/mass"><img src="https://agentmods.dev/badge/skills/lexideck-technologies/lexideck2026/mass.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 | $0.00109 | $0.03432 |
| Opus 5.5 | $0.00044 | $0.01373 |
| Sonnet 5.5 | $0.00022 | $0.00686 |
| Haiku 4.5 | $0.00011 | $0.00343 |
Grade A, and why
mass 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 2mo 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.
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
1 file 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.
- 2mo ago First seen · 200 lines · 109 tokens per session scan A b40a4f8c2852
mass is a skill published in the GitHub repository Lexideck-Technologies/Lexideck2026 (2 stars, last pushed 10d ago), licensed GPL-3.0. It adds 109 tokens to every session and 3,432 once invoked, about $0.0004 per session on Opus 5.5. 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.
mass compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| massLexideck-Technologies/Lexideck2026 | Skill | 2 | 10d ago | GPL-3.0 | A | 109 | Codex |
| paper2poster-posterPaper2Poster/Paper2Poster | Skill | 4.0k | 14d ago | MIT | A | 80 | Codex |
| alterlab-qiime2-ampliconAlterLab-IEU/AlterLab-Academic-Skills | Skill | 85 | yesterday | MIT | A | 270 | Claude Code |
| alterlab-pyhealthAlterLab-IEU/AlterLab-Academic-Skills | Skill | 85 | yesterday | MIT | A | 132 | Claude Code |
| alterlab-citation-verifierAlterLab-IEU/AlterLab-Academic-Skills | Skill | 85 | yesterday | MIT | A | 218 | Claude Code |
| alterlab-imaging-data-commonsAlterLab-IEU/AlterLab-Academic-Skills | Skill | 85 | yesterday | MIT | A | 90 | Claude Code |
| alterlab-cobrapyAlterLab-IEU/AlterLab-Academic-Skills | Skill | 85 | yesterday | MIT | A | 91 | Claude Code |