claude-code-best-practice is a repository of agents, commands, skills, hooks, plugins, and configuration guidance for Claude Code. It helps developers organize repeatable workflows and apply agentic engineering practices, including in monorepos. The catalogue entries are its reusable Claude Code workflow components.
Borrowing it
Nothing to install: this file belongs to shanraisshan/claude-code-best-practice. 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/shanraisshan/claude-code-best-practice/main/.claude/skills/weather-fetcher/SKILL.mdgit clone --depth 1 https://github.com/shanraisshan/claude-code-best-practiceWrote 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/shanraisshan/claude-code-best-practice/weather-fetcher)<a href="https://agentmods.dev/skills/shanraisshan/claude-code-best-practice/weather-fetcher"><img src="https://agentmods.dev/badge/skills/shanraisshan/claude-code-best-practice/weather-fetcher/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/shanraisshan/claude-code-best-practice/weather-fetcher"><img src="https://agentmods.dev/badge/skills/shanraisshan/claude-code-best-practice/weather-fetcher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
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 →
- medium Data Exfiltration · line 22 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 25 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00021 | $0.00391 |
| Opus 5 | $0.00010 | $0.00196 |
| Sonnet 5 | $0.00004 | $0.00078 |
| Haiku 4.5 | $0.00002 | $0.00039 |
Grade A, and why
weather-fetcher 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 11d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- weather-fetcher — 100% identical, 0 lines differ
What it actually says
Weather Fetcher Skill
This skill provides instructions for fetching current weather data.
Task
Fetch the current temperature for Dubai, UAE in the requested unit (Celsius or Fahrenheit).
Instructions
-
Fetch Weather Data: Use the WebFetch tool to get current weather data for Dubai from the Open-Meteo API.
For Celsius:
- URL:
https://api.open-meteo.com/v1/forecast?latitude=25.2048&longitude=55.2708¤t=temperature_2m&temperature_unit=celsius
For Fahrenheit:
- URL:
https://api.open-meteo.com/v1/forecast?latitude=25.2048&longitude=55.2708¤t=temperature_2m&temperature_unit=fahrenheit
- URL:
-
Extract Temperature: From the JSON response, extract the current temperature:
- Field:
current.temperature_2m - Unit label is in:
current_units.temperature_2m
- Field:
-
Return Result: Return the temperature value and unit clearly.
Expected Output
After completing this skill's instructions:
Current Dubai Temperature: [X]°[C/F]
Unit: [Celsius/Fahrenheit]
Notes
- Only fetch the temperature, do not perform any transformations or write any files
- Open-Meteo is free, requires no API key, and uses coordinate-based lookups for reliability
- Dubai coordinates: latitude 25.2048, longitude 55.2708
- Return the numeric temperature value and unit clearly
- Support both Celsius and Fahrenheit based on the caller's request
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.
- 11d ago First seen · 48 lines · 21 tokens per session scan A 4350c64fd975
weather-fetcher is a skill published in the GitHub repository shanraisshan/claude-code-best-practice (65,830 stars, last pushed yesterday), licensed MIT. It adds 21 tokens to every session and 391 once invoked, about $0.0001 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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