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Networking · Version 1.2.0 · Reviewed 2026-08-02

WebSocket Debugger

Make a defensible decision about handshake debugging and reconnect storm analysis with evidence, explicit trade-offs, and a verification plan.

4 method steps 5 documented failure modes 4 diagnostic checks 7 quality gates

Diagnoses handshake failures, proxy timeouts, dropped frames, connection leaks, reconnect storms, and sticky-session mistakes in real-time systems.

₹99 one-time

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What this skill helps you do

  • Handshake debugging
  • Reconnect storm analysis
  • Proxy and timeout review

How WebSocket Debugger works

You provide

Failing request path, timings, and intermediary configuration

It inspects

Layer isolation for handshake debugging: resolve, connect, handshake

It decides

A reconnect storm analysis fix attributed to a specific hop

You verify

Reproduce from the affected path, not from a healthy one

What it checks first

WebSocket Debugger diagnoses handshake failures, proxy timeouts, dropped frames, connection leaks, reconnect storms, and sticky-session mistakes in real-time systems. Use it when the work involves Handshake debugging, Reconnect storm analysis, Proxy and timeout review.

  1. Which layer the failure occurs at, since a name-resolution failure and a TLS failure look similar to the application.
  2. Whether the failure is symmetric, because one-way reachability points at policy rather than transport.
  3. Timing: connection setup, first byte, and transfer are separate problems with separate causes.
  4. Whether intermediaries such as proxies, load balancers, or service meshes terminate the connection.

Failure modes it recognizes

  • DNS search-path expansion adding latency and intermittent failures for external names.
  • An idle timeout on an intermediary silently closing connections a pool still believes are open.
  • MTU mismatch causing large payloads to hang while small requests succeed.
  • TLS SNI or certificate mismatch surfacing as a connection reset with no application log.
  • A policy denying return traffic, producing a timeout rather than a refusal.

Answers it will reject

  • Blaming the network before confirming resolution, routing, and policy each independently.
  • Increasing timeouts to mask an intermediary that is closing connections deliberately.
  • Testing from a different host or network than the one experiencing the failure.

Decision rules it applies

  • Isolate the layer before proposing a fix: resolve, connect, handshake, then request.
  • Reproduce from the affected network path; a successful test from elsewhere proves nothing.
  • Prefer connection-level evidence over application logs when the failure is pre-response.

Evidence it asks for

  • Capture resolution, connect, TLS, and first-byte timings separately.
  • Test with and without the intermediary to attribute the reset.
  • Confirm reachability in both directions rather than assuming symmetry.

The method inside

  1. Reconstruct the symptom timeline and define what healthy behavior would look like for handshake debugging.
  2. Rank hypotheses for reconnect storm analysis by evidence, blast radius, and ability to explain every observed symptom.
  3. Run the cheapest discriminating check for proxy and timeout review; update confidence only when evidence changes.
  4. Separate immediate stabilization, confirmed cause, contributing conditions, and prevention; finish with a reproducible verification.

Deliverables

  • Handshake debugging assessment
  • Reconnect storm analysis decision and action plan
  • Proxy and timeout review verification checklist

Evidence requirements

  • Functional and quality requirements
  • Scale, latency, consistency, cost, and compliance constraints
  • Current topology and alternatives considered

Quality gates

  • Every material claim traces to supplied evidence or is labeled as a hypothesis.
  • The response follows the declared deliverable contract.
  • No execution, access, measurement, or verification is invented.
  • Secrets and personal data are redacted rather than repeated.
  • The user receives a concrete independent verification step.
  • The relevant failure modes in this domain were considered rather than only the reported symptom.
  • No listed anti-pattern was recommended as a solution.

Example task

Input

Our WebSocket clients disconnect every 60 seconds behind the load balancer and then reconnect in a large spike.

Expected output

The exact 60-second cadence points to an idle timeout rather than application failure. Your ping interval is 75 seconds, so the load balancer closes every quiet connection before the first heartbeat...

Boundaries and compatibility

Ideal for

  • Handshake debugging: produce a decision or artifact grounded in supplied evidence.
  • Reconnect storm analysis: produce a decision or artifact grounded in supplied evidence.
  • Proxy and timeout review: produce a decision or artifact grounded in supplied evidence.

Out of scope

  • Producing a generic reference architecture without requirements
  • Hiding material trade-offs behind best-practice language

Agent compatibility

  • GitHub Copilot custom agents
  • Claude Agent Skills / SKILL.md
  • Any instruction-following chat model

Tool policy: Advisory by default. No tools are assumed. If the host provides tools, use read-only evidence gathering unless the user explicitly approves a scoped write or execution action.