Memento-Skills is an agent runtime and skill framework in which agents can create, reuse, execute, reflect on, and repair persistent skills. It is intended for multi-step task execution, research, planning, and building reusable agent behaviour through a desktop application or public runtime. The catalogue entries are examples of skills and agents built for this framework.
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 Memento-Teams/Memento-Skills --skill uv-pip-installgit clone --depth 1 https://github.com/Memento-Teams/Memento-SkillsWrote 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/memento-teams/memento-skills/uv-pip-install)<a href="https://agentmods.dev/skills/memento-teams/memento-skills/uv-pip-install"><img src="https://agentmods.dev/badge/skills/memento-teams/memento-skills/uv-pip-install/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/memento-teams/memento-skills/uv-pip-install"><img src="https://agentmods.dev/badge/skills/memento-teams/memento-skills/uv-pip-install.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
SkillSpector: 1 finding, up to low
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- low Supply Chain · line 95 Remote code is downloaded and executed. This bypasses code review and could introduce malicious code.Fix: Avoid downloading and executing remote scripts. Use trusted packages from PyPI/npm. If remote fetch is required, verify checksums and use HTTPS.
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 | $0.00041 | $0.00738 |
| Opus 5 | $0.00020 | $0.00369 |
| Sonnet 5 | $0.00008 | $0.00148 |
| Haiku 4.5 | $0.00004 | $0.00074 |
Grade C, and why
uv-pip-install 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 13d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
| `uv: command not found` | Install uv: `curl -LsSf https://astral.sh/uv/install.sh \| sh` | Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| `uv: command not found` | Install uv: `curl -LsSf https://astral.sh/uv/install.sh \| sh` | How it starts
The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.
uv-pip-install
Install and manage Python packages in the uv-managed virtual environment.
Quick start
# Install a package
uv pip install requests
# Install multiple packages
uv pip install pandas numpy matplotlib
# Install with extras
uv pip install httpx[http2]
# Check if a package is installed
uv pip show python-docx
# List all installed packages
uv pip list
# Upgrade a package
uv pip install --upgrade requests
When to use
- Python import fails with
ModuleNotFoundError - User asks to install a Python package
- A script requires dependencies that are not installed
Common module-to-package mappings
| Import name | Package name |
|---|---|
| cv2 | opencv-python |
| PIL | pillow |
| sklearn | scikit-learn |
| yaml | pyyaml |
| docx | python-docx |
| pptx | python-pptx |
| bs4 | beautifulsoup4 |
| dotenv | python-dotenv |
| attr | attrs |
| dateutil | python-dateutil |
| gi | pygobject |
| magic | python-magic |
| serial | pyserial |
| usb | pyusb |
| Crypto | pycryptodome |
| jwt | pyjwt |
| jose | python-jose |
| lxml | lxml |
| wx | wxPython |
| gi | PyGObject |
| skimage | scikit-image |
| fitz | PyMuPDF |
| cv | opencv-python |
| telegram | python-telegram-bot |
| discord | discord.py |
| flask_cors | flask-cors |
| sqlalchemy | SQLAlchemy |
| alembic | alembic |
| pymongo | pymongo |
| redis | redis |
| celery | celery |
| fastapi | fastapi |
| uvicorn | uvicorn |
| httpx | httpx |
| aiohttp | aiohttp |
| websockets | websockets |
| jinja2 | Jinja2 |
| markdownify | markdownify |
Workflow
- If an import error occurs, extract the module name.
- Map module name to package name if different (see table above).
- Check if already installed:
uv pip show <package> - If not installed:
uv pip install <package>
Troubleshooting
Common issues
| Problem | Solution |
|---|---|
uv: command not found |
Install uv: curl -LsSf https://astral.sh/uv/install.sh | sh |
| Package installs but import still fails | Check you're in the correct venv: which python |
| Version conflict | Pin version: uv pip install package==1.2.3 |
| Build fails (C extension) | Install system deps: brew install pkg-config (macOS) |
| SSL certificate error | uv pip install --trusted-host pypi.org package |
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.
- 13d ago First seen · 106 lines · 41 tokens per session scan C 5d217bb12a91
uv-pip-install is a skill published in the GitHub repository Memento-Teams/Memento-Skills (1,555 stars, last pushed 26d ago), licensed Apache-2.0. It adds 41 tokens to every session and 738 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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