Claude Code Skills Marketplace is a collection and marketplace of skills, plugins, agents, and instructions that extend Claude Code with specialized development workflows. It is for developers who want to install existing workflows or create, validate, and package their own Claude Code skills.
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 daymade/claude-code-skills --skill tunnel-doctorgit clone --depth 1 https://github.com/daymade/claude-code-skillsWrote 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/daymade/claude-code-skills/tunnel-doctor)<a href="https://agentmods.dev/skills/daymade/claude-code-skills/tunnel-doctor"><img src="https://agentmods.dev/badge/skills/daymade/claude-code-skills/tunnel-doctor/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/daymade/claude-code-skills/tunnel-doctor"><img src="https://agentmods.dev/badge/skills/daymade/claude-code-skills/tunnel-doctor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
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 | $0.00226 | $0.20384 |
| Opus 5 | $0.00113 | $0.10192 |
| Sonnet 5 | $0.00045 | $0.04077 |
| Haiku 4.5 | $0.00023 | $0.02038 |
Grade D, and why
tunnel-doctor scanned grade D with 3 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 today.
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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
**Why "restart the app" beats "flush DNS cache"**: `sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder` flushes cached results, but the resolver chain in `scutil --dns` is rebuilt from network configuration, n Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
curl -fsSL https://tailscale.com/install.sh | sh Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
SSH/HTTP fails, browser returns 503 while curl works, Git SSH closes through the How it starts
The opening of the file, as written. The whole thing — 1,291 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tunnel Doctor
Diagnose and fix conflicts when Tailscale coexists with proxy/VPN tools on macOS, with specific guidance for SSH access to WSL instances.
Methodology base: the general diagnostic discipline this skill builds on — evidence over assumption, falsification over confirmation, layered isolation, counter-review — lives in the debugging-network-issues skill. This skill is the macOS Tailscale⨯proxy domain layer on top of it; reach for the base skill when the symptom is not a known Tailscale/proxy conflict.
Ownership boundary: this skill owns concrete local network-path operations:
Tailscale, route/DNS/proxy interception, VM/WSL propagation, TUN forwarding
planes, and proxy node/exit/chain capacity. Use debugging-network-issues as the
general method when the boundary is still unknown or the symptom belongs to
SSE/CDN/application protocol behavior. This keeps one concrete operator instead
of forcing the user to choose between two overlapping proxy doctors.
Target and task scope
Before remote probes or changes, establish whether the target is a designated test machine, an explicitly requested colleague's working computer, or unknown. Use the owner's existing machine-purpose ledger and current task; do not log into a colleague's machine to classify it. Saved SSH access and previous successful tests do not grant ongoing use. Use designated test machines for routine testing; their unavailability does not authorize another person's computer.
Keep an explicitly requested one-off test on a colleague's computer within its stated result and necessary verification. Stop there on completion, cancellation, or a need for an unapproved environment change. Move later performance, migration, and regression tests to designated test machines. A test failure does not authorize disabling that person's proxy/VPN, quitting apps, changing routes, or installing a background task. Proceed with disruptive repair there only when the user has explicitly requested that repair and its interruption. Existing authorization for owner test-machine maintenance remains valid; do not ask again for its routine steps.
What ships with it
6 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.
- today Changed · +30 lines ad59feb7ad00
- 6d ago First seen · 1,261 lines · 226 tokens per session scan D 702087cc5904
tunnel-doctor is a skill published in the GitHub repository daymade/claude-code-skills (1,385 stars, last pushed today), licensed MIT. It adds 226 tokens to every session and 20,384 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it D with 3 findings (asks for root, downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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