estuary-ssh-tunnels SKILL.md skillF
estuary-ssh-tunnels from estuary/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add estuary/agent-skills/estuary-ssh-tunnels@git:20260505.8873932Pins git:20260505.8873932 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- F, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- estuary/agent-skills
- Path
skills/estuary-ssh-tunnels/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260505.8873932, committed May 5, 2026
- Size
- 4,732 bytes
- Repository stars
- 7
- License
- Apache-2.0
Diagnose and fix SSH tunnel connection issues for Estuary captures and materializations. Use when seeing tunnel failures, connection timeouts, or permission denied errors. Use when user says "SSH tunnel failed", "connection timeout via tunnel", "permission denied SSH", "tunnel not working", "network-tunnel failed", "no pubkey loaded", "bastion host not connecting", or "RSA key format".
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
# SSH Tunnel Troubleshooting for Estuary ## Quick Checklist Before deep debugging, verify these common issues: 1. **SSH Endpoint format**: Must be `ssh://user@hostname:port` - Check for typos, spaces, missing hyphens - AWS regions use hyphens: `us-west-2` not `us-west 2` 2. **Private key format**: Must be RSA PEM format - Must start with `-----BEGIN RSA PRIVATE KEY-----` - NOT `-----BEGIN OPENSSH PRIVATE KEY-----` (OpenSSH format) - NOT `-----BEGIN PRIVATE KEY-----` (PKCS#8 format) - Ed25519 and ECDSA keys are **not supported** — only RSA 3. **IP allowlisting**: Estuary data plane IPs must be allowed on: - Bastion/SSH server security group (port 22) - Database security group (from bastion's private IP) - Find the IPs for your data plane at Admin → Settings → Data Planes in the Estuary UI - Note: data plane IPs can change after infrastructure scaling — re-verify allowlists if a previously working tunnel stops connecting …
Read the whole file at its exact version.
How to install
mdr add estuary/agent-skills/estuary-ssh-tunnels@sha256:baf13c4410c17a19The line at the top of this page pins the label git:20260505.8873932, 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_yzcsoilv4fopvjyn)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 5, 2026.
Audit of the latest version
- FAIL, critical: No credential-shaped string (matched: -----BEGIN RSA PRIVATE KEY-----)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4732 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 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 link to a raw IP address
- 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
estuary/agent-skills · 7 stars · license Apache-2.0 · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_yzcsoilv4fopvjyn GET https://markdownregistry.com/api/v1/resolve?ref=estuary/agent-skills/estuary-ssh-tunnels GET https://markdownregistry.com/api/v1/blob/baf13c4410c17a19a41d903626f55295942b2e8f002ffbee7d83d790d428007f
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.