Debug Simulation Failure

Debug Simulation Failure is a skill for Claude Code, Codex from ladla90077-web/solidworks-mcp. It costs 13 tokens per session (1,343 once invoked), scanned A, original, MIT.

Instructions for diagnosing simulation problems, including failures that prevent a model from running and results that run but are incorrect. A simulation is a computer model used to calculate how a real or designed system behaves.

In plain words
What is it for?
Finding causes of crashes, solver or convergence failures, unexpected values, non-physical behavior, and results that disagree with expected data.
Why use it?
It separates execution errors from errors in the model itself, helping the engineer investigate the right kind of problem.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Finding causes of crashes, solver or convergence failures, unexpected values, non-physical behavior, and results that disagree with expected data.

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Install with agentmods
npx agentmods add skills/ladla90077-web/solidworks-mcp/debug-simulation-failure
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add ladla90077-web/solidworks-mcp --skill debug-simulation-failure
Clone the repo
git clone --depth 1 https://github.com/ladla90077-web/solidworks-mcp

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Debug Simulation Failure

README.md
[![agentmods](https://agentmods.dev/badge/skills/ladla90077-web/solidworks-mcp/debug-simulation-failure.svg)](https://agentmods.dev/skills/ladla90077-web/solidworks-mcp/debug-simulation-failure)
Your own site
<a href="https://agentmods.dev/skills/ladla90077-web/solidworks-mcp/debug-simulation-failure"><img src="https://agentmods.dev/badge/skills/ladla90077-web/solidworks-mcp/debug-simulation-failure.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,343 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 $0.00013 $0.01343
Opus 5 $0.00006 $0.00672
Sonnet 5 $0.00003 $0.00269
Haiku 4.5 $0.00001 $0.00134

Measured 7d ago against content hash 382e781b290a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

Debug Simulation Failure 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 7d 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.

src/sw_mcp/resources/skills/debug-simulation-failure/SKILL.md · 151 lines

How it starts

The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Debug Simulation Failure

What You're Actually Doing

You're helping an engineer get from "this isn't working" to either a working simulation or a clear understanding of why it can't work. The goal isn't to produce a debugging report - it's to solve the problem.

Two distinct situations:

  1. Simulation won't run - errors, crashes, non-convergence. The engineer has no results.
  2. Simulation ran but results are wrong - unexpected values, non-physical behavior, results that don't match intuition or test data.

These require different approaches. The first is about mechanics (what's preventing the solver from working). The second is about physics (what's wrong with the model's representation of reality).

When to Check In (And Why)

1. After Understanding the Problem

Before debugging, make sure you understand:

  • What did they expect to happen?
  • What actually happened? (Error messages, unexpected values, non-convergence)
  • Has this model/simulation ever worked before? What changed?

Why this matters: "It's broken" could mean many things. A convergence failure in a nonlinear analysis is a different problem than wrong stress values in a linear static. You need to know what you're debugging.

2. When You've Identified Likely Causes

Once you've examined the model and logs, share your diagnosis before changing anything:

  • What you think is wrong and why
  • What you'd like to try first
  • What the risk/impact of the change is

Why this matters: You can identify issues, but the engineer knows context you don't - maybe that "problem" is intentional, or maybe there's a reason they can't change it. And changes to a simulation model shouldn't be made without the engineer's knowledge.

3. After Attempting a Fix

Verify the fix actually worked:

  • Did the simulation run successfully?
  • Do the results make physical sense?
  • Did the fix introduce new problems?

Why this matters: "It runs now" isn't the same as "it's correct." A simulation that converges to wrong answers is worse than one that fails to converge.

Read the full file on GitHub · 151 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. 7d ago First seen · 151 lines · 13 tokens per session scan A 382e781b290a

Subscribe to this mod's changes

Debug Simulation Failure is a skill published in the GitHub repository ladla90077-web/solidworks-mcp (3 stars, last pushed 2mo ago), licensed MIT. It adds 13 tokens to every session and 1,343 once invoked, about $0.0001 per session on Opus 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.

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