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edgeViewLauncher: Skill for Claude Code

.agents/skills/debugging_connections/SKILL.md

Debugging Connections is a skill for Claude Code, Codex from sergey-zededa/edgeViewLauncher. It costs 27 tokens per session (1,064 once invoked), scanned A, original, Apache-2.0.

A troubleshooting guide for keeping EdgeView Launcher connections working over SSH, VNC, and TCP tunnels. It covers communication between the launcher, its local proxy, and the ZEDEDA EdgeView service.

In plain words
What is it for?
Use it to investigate unstable remote terminals and tunnels, check keep-alive and handshake logic, verify tunnel IDs, and add focused debugging logs.
Why use it?
It helps find why connections stall, drop, or end with errors such as “TCP EOF” by comparing connection handling and tracing the tunnel handshake.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is sergey-zededa/edgeViewLauncher's own configuration. It tells Claude Code and Codex how to work on edgeViewLauncher itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything edgeViewLauncher configures →

not rated 5repo changed 1mo ago A scan 27 tokens original Apache-2.0
View source ↗ sergey-zededa/edgeViewLauncher
Reuse

Borrowing it

Nothing to install: this file belongs to sergey-zededa/edgeViewLauncher. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/sergey-zededa/edgeViewLauncher/main/.agents/skills/debugging_connections/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/sergey-zededa/edgeViewLauncher

Made for: Claude Code, Codex.

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Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,064 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00027 $0.01064
Opus 5.5 $0.00011 $0.00426
Sonnet 5.5 $0.00005 $0.00213
Haiku 4.5 $0.00003 $0.00106

Measured 1mo ago against content hash 393392f86d9f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Debugging Connections scanned grade A with 0 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 1mo 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/debugging_connections/SKILL.md · 53 lines

How it starts

The opening of the file, as written. The whole thing — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Debugging EdgeView Launcher Connections (SSH, VNC, TCP Tunnels)

This skill provides context and steps for troubleshooting communication issues between the EdgeView Launcher application, the local proxy (internal/session/manager.go), and ZEDEDA EdgeView service.

1. Comparing with Reference Implementations

If connection stability (e.g., stalling, dropping, "TCP EOF") is observed, the primary source of truth is the reference implementation: eve/edgeview-client.

  • Check eve/edgeview-client source code for SSH connection management, keep-alive mechanisms, and WebSocket protocol implementation.
  • Compare these mechanisms with our application's internal/session/manager.go and internal/zededa/client.go.
  • Identify discrepancies or missing keep-alive/handshake logic.

2. Inspecting TCP Tunnel Data Flow

  • Issues with data flow ("TCP EOF", client disconnected) often stem from early termination of the tunnel handshake.
  • Look at the MappingID allocation and verification.
  • Add minimal, precise debug logging near the EOF conditions to trace the problem without spamming the console with verbose API logs.

3. SSH Terminal-Specific Issues

  • Stalling/Dropping: Verify WebSocket pings are sent consistently, similar to the reference implementation. Verify "No password provided" or "invalid packet length" errors to ensure the SSH payload is correctly wrapped.
  • Rendering & Resizing:
    • Ensure ANSI color codes are intact when passing through the WebSocket to xterm.js.
    • Check dynamic resizing: Confirm the terminal window dimensions (e.g., 120x80) synchronize with the remote PTY size via resizing events from the frontend to the backend.

4. VNC-Specific Issues

  • External Clients (e.g., RealVNC): External VNC viewers might enforce stricter protocol handshake timings. Check for "no device online" errors resulting from early closure by the edge.
  • noVNC Built-in Viewer: The built-in viewer might have helpers (like the on-screen keyboard) to send special key combinations. Test this client first as a baseline before debugging external clients.
  • Review keep-alive logic inside manager.go specific to VNC proxying.

Read the full file on GitHub · 53 lines

Changes

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.

  1. 1mo ago Changed 393392f86d9f
  2. 2mo ago First seen · 53 lines · 27 tokens per session scan A 40f8ae7f7b1f

Subscribe to this mod's changes

Debugging Connections is a skill published in the GitHub repository sergey-zededa/edgeViewLauncher (5 stars, last pushed 6d ago), licensed Apache-2.0. It adds 27 tokens to every session and 1,064 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Debugging
Related

Debugging Connections compared with skills from other repositories

Debugging Connections next to 6 skills from other repositories
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log-error-digestzebbern/claude-code-guideSkill4.7kyesterdayMITA71Claude Code, Codex
cwv-optimizeradobe/skillsSkill321todayApache-2.0A112Claude Code
ci-fixersipyourdrink-ltd/bernsteinSkill1.2ktodayApache-2.0A15Claude Code, Codex
incident-response-incident-responsermyndharis/antigravity-skillsSkill2.0kyesterdayMITA36Claude Code, Codex
diagnosing-missing-recordingsPostHog/posthogSkill41ktodaynoneA76Claude Code, Codex