Borrowing it
Nothing to install: this file belongs to jenreh/appkit. 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/jenreh/appkit/main/.claude/skills/reflex-testing-state/SKILL.mdgit clone --depth 1 https://github.com/jenreh/appkitWrote 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/jenreh/appkit/reflex-testing-state)<a href="https://agentmods.dev/skills/jenreh/appkit/reflex-testing-state"><img src="https://agentmods.dev/badge/skills/jenreh/appkit/reflex-testing-state/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/jenreh/appkit/reflex-testing-state"><img src="https://agentmods.dev/badge/skills/jenreh/appkit/reflex-testing-state.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 | $0.00056 | $0.00509 |
| Opus 5.5 | $0.00022 | $0.00204 |
| Sonnet 5.5 | $0.00011 | $0.00102 |
| Haiku 4.5 | $0.00006 | $0.00051 |
Grade A, and why
reflex-testing-state 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 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.
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.
What it actually says
Testing Reflex State
Reflex State is a plain Python class — no browser or runtime needed.
Test it directly with pytest and pytest-asyncio.
Setup
pip install pytest pytest-asyncio pytest-cov
pyproject.toml:
[tool.pytest.ini_options]
testpaths = ["tests/unit"]
asyncio_mode = "auto"
python_files = ["test_*.py"]
File layout
tests/unit/
├── conftest.py
├── test_base_state.py
└── test_project_state.py
Patterns
Base vars → test defaults directly
Sync handlers → call on instance, assert result
Async handlers → await, assert is_loading is False after
Streaming handlers → consume with async for
Computed vars → mutate base vars, assert property
Substates → instantiate subclass independently
External I/O → unittest.mock.patch at myapp.state.*
Background tasks → patch __aenter__/__aexit__
See references/PATTERNS.md for full code examples. See references/FIXTURES.md for shared fixture setup.
Decision: which pattern to use?
Sync handler? → Test directly, no async
Async handler? → Use await, check loading flag resets
Handler bound to Radix UI component? → Add str AND list[str] test cases
Handler calls API/DB? → Mock with AsyncMock, test both success and failure
Background task (@rx.event(background=True))? → Patch context manager
Run
pytest tests/unit/ -v --cov=myapp/state --cov-report=term-missing
pytest tests/unit/test_project_state.py -v # single module
pytest tests/unit/ -x # stop on first failure
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.
- 1mo ago First seen · 67 lines · 56 tokens per session scan A a3ec12ccaa0b
reflex-testing-state is a skill published in the GitHub repository jenreh/appkit (4 stars, last pushed 2d ago), licensed MIT. It adds 56 tokens to every session and 509 once invoked, about $0.0002 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.
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