Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add Marcel-Bich/marcel-bich-claude-marketplace/plugin install credoWrote 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/marcel-bich/marcel-bich-claude-marketplace/wsl-env)<a href="https://agentmods.dev/skills/marcel-bich/marcel-bich-claude-marketplace/wsl-env"><img src="https://agentmods.dev/badge/skills/marcel-bich/marcel-bich-claude-marketplace/wsl-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/marcel-bich/marcel-bich-claude-marketplace/wsl-env"><img src="https://agentmods.dev/badge/skills/marcel-bich/marcel-bich-claude-marketplace/wsl-env.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 | $0.00146 | $0.01640 |
| Opus 5 | $0.00073 | $0.00820 |
| Sonnet 5 | $0.00029 | $0.00328 |
| Haiku 4.5 | $0.00015 | $0.00164 |
Grade A, and why
wsl-env scanned grade A with 1 finding 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 12d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
runs inside WSL. Use whenever a service seems unreachable from WSL (a localhost curl How it starts
The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.
wsl-env - WSL to Windows-side helper
When the agent runs inside WSL, the thing it needs to reach or drive often lives on the
Windows side. WSL frequently cannot reach Windows localhost ports directly, so a naive
curl localhost:PORT failing is NOT evidence that a service is down. This skill defines
how to detect that situation and how to act across the WSL/Windows boundary correctly.
Self-detect first (no-op when irrelevant)
Before doing anything WSL-specific, check whether it applies:
- Is this actually WSL? Check for the WSL kernel signature, e.g.
grep -qi microsoft /proc/version(or check/proc/sys/kernel/osrelease). If not WSL, this skill is a no-op - use normal local access. - Is the target Windows-side? A service bound by a Windows process, a Windows
.ps1launcher, a Windows path, or a machine-level action (hibernate). If the target is a native Linux service inside the WSL distro, this skill is a no-op - reach it the normal Linux way.
Only when both are true do the rules below apply.
Reaching a service: try BOTH methods before giving up
A service reachability failure from WSL has two distinct fixes depending on how the service is bound. Never conclude "unreachable" without trying both.
-
Service bound to
0.0.0.0(all interfaces): reachable from WSL via the Windows LAN-IP, NOT vialocalhost/127.0.0.1. Point the request at the host's real LAN address plus the port. -
True localhost-only service (bound to
127.0.0.1on Windows): not reachable from WSL by IP at all. Reach it by running the request on the Windows side throughpowershell.exe, for example:powershell.exe -NoProfile -Command "(Invoke-WebRequest -UseBasicParsing -TimeoutSec 5 http://localhost:PORT/path).Content"
Rule: if the LAN-IP method fails, try the powershell.exe method (and vice versa)
before reporting the service as down.
Getting the values: config first, then discover
The LAN-IP is environment-specific and DYNAMIC - the host's real LAN address. Resolve it at runtime, never hardcode it; the config only caches it:
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.
- 12d ago First seen · 131 lines · 146 tokens per session scan A 25e1ad8b7481
wsl-env is a skill published in the GitHub repository Marcel-Bich/marcel-bich-claude-marketplace (13 stars, last pushed today), licensed MIT. It adds 146 tokens to every session and 1,640 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
ai-ml-development
AI and machine learning development with PyTorch, TensorFlow, and LLM integration. Use when building ML models, training pipelines, fine-tuning LLMs, or implementing AI features.
android-development
Android development with Kotlin, Jetpack Compose, and modern Android architecture. Use when building Android apps, implementing Material Design, or following Android best practices.
email-systems
Transactional email (Resend, SendGrid, SES), templates (React Email, MJML), deliverability (SPF/DKIM/DMARC), and inboxing best practices. Use when building email infrastructure, designing templates, or troubleshooting deliverability.
ios-development
Comprehensive guide for building native Apple platform applications.
ai-policy-generator
AI governance policy creation for nonprofits and enterprises with frameworks, risk assessment, ethical guidelines, and compliance templates. Use when drafting AI usage policies, responsible AI frameworks, or organizational AI governance documents.
battle-card-builder
Competitive battle card creation for sales teams combining competitive intelligence, sales enablement, and document formatting. Use when building battle cards, competitive analysis decks, or win/loss analysis materials.