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/hyperb1iss/hyperskills/tynpx skills add hyperb1iss/hyperskills --skill tygit clone --depth 1 https://github.com/hyperb1iss/hyperskillsWrote 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/hyperb1iss/hyperskills/ty)<a href="https://agentmods.dev/skills/hyperb1iss/hyperskills/ty"><img src="https://agentmods.dev/badge/skills/hyperb1iss/hyperskills/ty.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 | $0.00069 | $0.02230 |
| Opus 5 | $0.00034 | $0.01115 |
| Sonnet 5 | $0.00014 | $0.00446 |
| Haiku 4.5 | $0.00007 | $0.00223 |
Grade A, and why
ty 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 255 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ty: Python Type Checker & Language Server
ty is Astral's Rust-based Python type checker and language server. Beta status: 0.0.x versioning, breaking changes between versions, and no stable API yet. Astral reports 10-100x faster checks than mypy and Pyright on large projects.
Snapshot: v0.0.34, May 2026. The installed binary outranks this file, and it rots faster here than in the other Astral skills: 0.0.x means flags, rule names, and config keys move between releases. Check ty --version and ty check --help before trusting a flag, and ty explain rule for current rule names.
Formerly "Red-Knot", renamed May 2025, extracted from the ruff repo to astral-sh/ty.
When to Use ty
[tool.ty]section inpyproject.tomlorty.tomlexists- Type checking Python code in any project
- Setting up an LSP for Python in your editor
When to wait: Projects heavily dependent on mypy plugins (Pydantic, Django, SQLAlchemy). ty has no plugin system and no plans to add one, first-class framework support is the stated approach instead.
How to Invoke
uvx ty check # One-off (latest)
uv run ty check # Project dependency
ty check # Global install
CLI Commands
# Type checking
ty check # Check current directory
ty check path/to/file.py # Specific file
ty check src/ tests/ # Multiple directories
# Rule severity
ty check --error unresolved-import
ty check --warn division-by-zero
ty check --ignore unresolved-attribute
# Python targeting
ty check --python-version 3.12
ty check --python-platform linux
ty check --python .venv/bin/python
# Output formats
ty check --output-format full # Rich diagnostics (default)
ty check --output-format concise # One line per error
ty check --output-format github # GitHub Actions annotations
ty check --output-format gitlab # GitLab Code Quality
ty check --output-format junit # JUnit XML
# Watch mode
ty check --watch # Re-check on file changes
ty check -W # Short form
# Migration helper
ty check --add-ignore # Auto-add ty: ignore comments for all errors
# Introspection
ty explain rule # List all rules
ty explain rule invalid-assignment # Explain specific rule
# Language server
ty server # Start LSP
What ships with it
2 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.
- 4d ago First seen · 255 lines · 69 tokens per session scan A e1fce5c01d0a
ty is a skill published in the GitHub repository hyperb1iss/hyperskills (31 stars, last pushed 8d ago), licensed MIT. It adds 69 tokens to every session and 2,230 once invoked, about $0.0003 per session on Opus 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 2026-08-30.
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