agentmods.dev

pufferlib

pufferlib is a skill for Claude Code from KalarisLabs/research-agent-skills. It costs 65 tokens per session (3,136 once invoked), scanned C, original, no licence file.

Version-aware guidance for PufferLib reinforcement-learning environments, vectorization, policies, PuffeRL training, evaluation, and safe checkpoint review. Use when adapting Gymnasium/PettingZoo environments to published PufferLib 3.0.0 or working with the redesigned native 4.0 source line.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

not rated 105repo today C scan 65 tokens custom licence
Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kalarislabs/research-agent-skills/pufferlib
View source ↗ KalarisLabs/research-agent-skills docs.kalarislabs.com
Install

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.

Any agent
npx skills add KalarisLabs/research-agent-skills --skill pufferlib
Clone the repo
git clone --depth 1 https://github.com/KalarisLabs/research-agent-skills

Made for: Claude Code.

Wrote 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.

agentmods badge for pufferlib

README.md
[![agentmods](https://agentmods.dev/badge/skills/kalarislabs/research-agent-skills/pufferlib/github.svg)](https://agentmods.dev/skills/kalarislabs/research-agent-skills/pufferlib)
Your own site
<a href="https://agentmods.dev/skills/kalarislabs/research-agent-skills/pufferlib"><img src="https://agentmods.dev/badge/skills/kalarislabs/research-agent-skills/pufferlib/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.

agentmods 80×15 button for pufferlib

Your own site · 80×15
<a href="https://agentmods.dev/skills/kalarislabs/research-agent-skills/pufferlib"><img src="https://agentmods.dev/badge/skills/kalarislabs/research-agent-skills/pufferlib.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,136 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00065 $0.03136
Opus 5.5 $0.00026 $0.01254
Sonnet 5.5 $0.00013 $0.00627
Haiku 4.5 $0.00006 $0.00314

Measured today against content hash bc3cacd5546d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

pufferlib scanned grade C 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 today.

The scan reads SKILL.md. This mod also ships 9 executable files (scripts/__init__.py, scripts/_common.py, scripts/benchmark_vectorization.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Harvests environment variableshighData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

9. Never dump all environment variables or recursively search for `.env`.
skills/pufferlib/SKILL.md · 337 lines

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.

Read it on GitHub

Files

What ships with it

14 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.

Changes

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.

  1. today First seen · 337 lines · 65 tokens per session scan C bc3cacd5546d

Subscribe to this mod's changes

pufferlib is a skill published in the GitHub repository KalarisLabs/research-agent-skills (105 stars, last pushed today), with no licence file. It adds 65 tokens to every session and 3,136 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it C with 1 finding (harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-07.

Code reviewacademic-researchacademic-writingagent-skillsai-agentsbioinformaticscitation-verification
Related

pufferlib compared with skills from other repositories

pufferlib next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
pufferlibKalarisLabs/research-agent-skillsSkill105todaynoneC65Claude Code
asplos-writing-stylebrycewang-stanford/Awesome-Journal-SkillsSkill1.4k1mo agoMITA65Claude Code
atc-reproducibilitybrycewang-stanford/Awesome-Journal-SkillsSkill1.4k1mo agoMITA78Claude Code
research-managerpoemswe/co-researcherSkill1354d agoMITA21Claude Code
academic-writingpoemswe/co-researcherSkill1354d agoMITA39Claude Code
systematic-reviewpoemswe/co-researcherSkill1354d agoMITA26Claude Code
hypothesis-testingpoemswe/co-researcherSkill1354d agoMITA25Claude Code