debugging-network-issues SKILL.md skillB
debugging-network-issues 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/debugging-network-issues@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
debugging-network-issues/SKILL.md- Versions recorded
- 14
- Latest version
- git:20261106.2ee102b, committed Nov 6, 2026
- First version recorded
- Aug 17, 2026
- Size
- 60,494 bytes
- Repository stars
- 1,519
- License
- MIT
Investigates network, streaming and protocol failures with falsification-first layered experiments, the general fallback for unknown root causes. Use for ECONNRESET / RST_STREAM / SSE stalls, CDN/CGNAT timeouts or certificate errors, throughput collapse where everything returns 200 but transfers crawl, or LAN identity/topology mysteries. Not for known Tailscale/TUN/DNS/proxy-path conflicts (use tunnel-doctor).
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
# Debugging Network Issues Evidence-driven investigation methodology for incidents where the obvious cause is probably wrong. Built from a real 5-hour production case (see [references/case-sse-rst-130s.md](references/case-sse-rst-130s.md)) where assumption-stacking wasted hours that a 10-minute layered experiment would have resolved. Apply this skill when the user reports a network/streaming/protocol symptom and the investigator feels tempted to diagnose from one log line or one circumstantial data point. The skill's job is to slow that reflex down. ## Triage first — is this a known domain? Before applying the general methodology below, check whether the symptom points at a stack that already has a dedicated skill in this repo. Those carry the domain-specific symptom→cause→fix tables this skill deliberately stays general about — start there, and come back here for methodology if the root cause turns out to be elsewhere. | If the symptom is… | Start with | …
Read the whole file at its exact version.
How to install
mdr add daymade/claude-code-skills/debugging-network-issues@sha256:adfa62199a7e36b1The 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_hrpyi5dyasl24gyz)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 14 versions of this file, between Aug 17, 2026 and Nov 6, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261106.2ee102b latest | 2026-11-06 | 2ee102b | 60,494 B | B | view · diff |
| git:20261105.dcd3845 | 2026-11-05 | dcd3845 | 58,867 B | B | view · diff |
| git:20261023.706a476 | 2026-10-23 | 706a476 | 58,803 B | B | view · diff |
| git:20261020.7e4a8f6 | 2026-10-20 | 7e4a8f6 | 58,769 B | B | view · diff |
| git:20261020.b6d8d4b | 2026-10-20 | b6d8d4b | 58,921 B | B | view · diff |
| git:20261017.a1e7144 | 2026-10-17 | a1e7144 | 58,796 B | B | view · diff |
| git:20261017.bbe7a12 | 2026-10-17 | bbe7a12 | 58,277 B | B | view · diff |
| git:20261004.7930e68 | 2026-10-04 | 7930e68 | 57,884 B | B | view · diff |
| git:20261004.d6ecf57 | 2026-10-04 | d6ecf57 | 57,879 B | B | view · diff |
| git:20260923.d6fdd9a | 2026-09-23 | d6fdd9a | 55,115 B | B | view · diff |
| git:20260912.e81fa7a | 2026-09-12 | e81fa7a | 55,593 B | B | view · diff |
| git:20260910.ccb127c | 2026-09-10 | ccb127c | 53,419 B | B | view · diff |
| git:20260824.3a83622 | 2026-08-24 | 3a83622 | 50,663 B | B | view · diff |
| git:20260817.4ef06b2 | 2026-08-17 | 4ef06b2 | 49,668 B | B | 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 (60494 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_hrpyi5dyasl24gyz GET https://markdownregistry.com/api/v1/resolve?ref=daymade/claude-code-skills/debugging-network-issues GET https://markdownregistry.com/api/v1/blob/adfa62199a7e36b1417bbb48991833b7028c89fa9afbece842defe749f0bfbc4
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.