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 athola/claude-night-market --skill night-market-build-and-envgit clone --depth 1 https://github.com/athola/claude-night-marketWrote 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/athola/claude-night-market/night-market-build-and-env)<a href="https://agentmods.dev/skills/athola/claude-night-market/night-market-build-and-env"><img src="https://agentmods.dev/badge/skills/athola/claude-night-market/night-market-build-and-env/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/athola/claude-night-market/night-market-build-and-env"><img src="https://agentmods.dev/badge/skills/athola/claude-night-market/night-market-build-and-env.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00042 | $0.03056 |
| Opus 5.5 | $0.00017 | $0.01222 |
| Sonnet 5.5 | $0.00008 | $0.00611 |
| Haiku 4.5 | $0.00004 | $0.00306 |
Grade A, and why
night-market-build-and-env 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.
How it starts
The opening of the file, as written. The whole thing — 212 lines — stays where its author put it; the contents beside it link to each section on GitHub.
night-market-build-and-env
Recreate a working claude-night-market development environment from a bare machine, verify it in under an hour, and avoid the traps that have broken it before. Everything below was verified against the repo on 2026-07-02 (v1.9.15).
One rule dominates: every Python tool runs through uv run. uv is
Astral's Python package and environment manager. On first uv run it
creates .venv/ and syncs it from uv.lock. Never install repo
dependencies with bare pip.
Toolchain setup
Install in this order. "via uv" means the tool resolves from uv.lock
automatically. There is no manual install step for those rows.
| # | Tool | Required? | Install hint | Verify command |
|---|---|---|---|---|
| 1 | uv | REQUIRED | official installer at astral.sh/uv | uv --version |
| 2 | Python 3.12 | REQUIRED | uv python install 3.12 |
python3 --version |
| 3 | make + bash | REQUIRED | GNU make 3.82+ (Xcode CLT ships 3.81, which ignores .SHELLFLAGS; brew install make, run gmake) |
make --version |
| 4 | ruff >=0.14.13 | via uv | none (dev dependency in uv.lock) |
uv run ruff --version |
| 5 | bandit | via uv | none (pre-commit env is pinned separately, see traps) | uv run bandit --version |
| 6 | mypy >=1.13 | via uv | none | uv run mypy --version |
| 7 | pre-commit >=4 | via uv | uv run pre-commit install |
uv run pre-commit --version |
| 8 | Python 3.9 | optional | uv python install 3.9 |
uv venv --python 3.9 /tmp/py39-check |
| 9 | node + npm | optional | needed for conjure Gemini delegation | node --version |
| 10 | Rust + cargo | optional | rustup (only for make skrills-build) |
cargo --version |
| 11 | skrills binary | optional | make skrills-build or make skrills-install |
make skrills-verify |
| 12 | mdbook | optional | cargo install mdbook; builds book/ |
mdbook --version |
| 13 | gh CLI | optional | cli.github.com (releases and Discussions) | gh --version |
Notes on the optional rows:
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 Changed d254d7591b9e
- 2mo ago First seen · 212 lines · 42 tokens per session scan A 7da438277ce4
night-market-build-and-env is a skill published in the GitHub repository athola/claude-night-market (348 stars, last pushed today), licensed MIT. It adds 42 tokens to every session and 3,056 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 2026-08-30.
night-market-build-and-env compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| night-market-build-and-envathola/claude-night-market | Skill | 348 | today | MIT | A | 42 | Claude Code |
| fastapi-appccplugins/awesome-claude-code-plugins | Skill | 998 | 2mo ago | Apache-2.0 | A | 103 | Claude Code |
| writing-pythonAleksandarBisevac/claude-plugins | Skill | 4 | yesterday | MIT | A | 161 | Claude Code |
| no-silent-passAleksandarBisevac/claude-plugins | Skill | 4 | yesterday | MIT | A | 143 | Claude Code |
| fastapi-senior-devgeorgekhananaev/claude-skills-vault | Skill | 30 | 2mo ago | MIT | A | 39 | Claude Code |
| pydantic-modelgeorgekhananaev/claude-skills-vault | Skill | 30 | 2mo ago | MIT | A | 28 | Claude Code |
| pep8hackermanishackerman/claude-skills-vault | Skill | 2 | 25d ago | MIT | A | 69 | Claude Code |