tunnel-doctor SKILL.md skillB
tunnel-doctor from daymade/claude-code-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add daymade/claude-code-skills/tunnel-doctor@git:20261106.2ee102bPins git:20261106.2ee102b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- daymade/claude-code-skills
- Path
tunnel-doctor/SKILL.md- Versions recorded
- 18
- Latest version
- git:20261106.2ee102b, committed Nov 6, 2026
- First version recorded
- Sep 23, 2026
- Size
- 97,486 bytes
- Repository stars
- 1,519
- License
- MIT
MUST be used first for tunnel / proxy-path connectivity failures or slow throughput (网络故障 / 连不上 / 代理或隧道下超时). Diagnoses Tailscale, proxy, TUN, DNS and SSH-tunnel problems on macOS and Windows/WSL, e.g. Tailscale ping works but SSH fails, curl works but browser gets 503, Git/Docker fails behind the proxy, or downloads crawl despite a reachable proxy. Not for application-layer bugs (use debugging-network-issues).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# 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, …
Read the whole file at its exact version.
How to install
mdr add daymade/claude-code-skills/tunnel-doctor@sha256:2283413dd128f858The line at the top of this page pins the label git:20261106.2ee102b, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_4uzv3jg44hhw2egq)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 18 versions of this file, between Sep 23, 2026 and Nov 6, 2026, about one every 3 days. Its first recorded version is graded C and its latest B.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261106.2ee102b latest | 2026-11-06 | 2ee102b | 97,486 B | B | view · diff |
| git:20261106.4f85732 | 2026-11-06 | 4f85732 | 96,995 B | B | view · diff |
| git:20261031.6412ac3 | 2026-10-31 | 6412ac3 | 96,250 B | C | view · diff |
| git:20261025.39d04e9 | 2026-10-25 | 39d04e9 | 96,025 B | C | view · diff |
| git:20261024.47e1eb6 | 2026-10-24 | 47e1eb6 | 96,058 B | C | view · diff |
| git:20261024.3b539bf | 2026-10-24 | 3b539bf | 96,118 B | C | view · diff |
| git:20261023.6d42034 | 2026-10-23 | 6d42034 | 95,835 B | C | view · diff |
| git:20261023.cae74b2 | 2026-10-23 | cae74b2 | 95,237 B | C | view · diff |
| git:20261019.e5e7bfe | 2026-10-19 | e5e7bfe | 90,312 B | C | view · diff |
| git:20261015.b5b5173 | 2026-10-15 | b5b5173 | 89,506 B | C | view · diff |
| git:20261014.aa348a6 | 2026-10-14 | aa348a6 | 88,239 B | C | view · diff |
| git:20261004.e9ac903 | 2026-10-04 | e9ac903 | 87,560 B | C | view · diff |
| git:20261003.9427845 | 2026-10-03 | 9427845 | 87,500 B | C | view · diff |
| git:20260925.1fcf763 | 2026-09-25 | 1fcf763 | 87,098 B | C | view · diff |
| git:20260924.9e06eec | 2026-09-24 | 9e06eec | 86,443 B | C | view · diff |
| git:20260923.812f8a2 | 2026-09-23 | 812f8a2 | 85,847 B | C | view · diff |
| git:20260923.d5976d1 | 2026-09-23 | d5976d1 | 85,787 B | C | view · diff |
| git:20260923.9605558 | 2026-09-23 | 9605558 | 86,469 B | C | view |
Audit of the latest version
- fail: No link to a raw IP address (matched: http://127.0.0.1)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (97486 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
daymade/claude-code-skills · 1,519 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4uzv3jg44hhw2egq GET https://markdownregistry.com/api/v1/resolve?ref=daymade/claude-code-skills/tunnel-doctor GET https://markdownregistry.com/api/v1/blob/2283413dd128f8587e52060446fec5296be839d652a646f83692600e8ffe85c1
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.