ty-sysblock-model-debugging

ty-sysblock-model-debugging is a skill for Claude Code, Codex from Suzhou-Tongyuan/sysplorer-mcp-server. It costs 79 tokens per session (1,803 once invoked), scanned A, original, MIT.

A troubleshooting skill for existing Sysplorer Sysblock diagrams and their failures. It examines blocks, connections, parameters, timing, simulation, generated code, solvers, and CCaller code, where CCaller connects custom C code to a model.

In plain words
What is it for?
Use it to diagnose or repair abnormal results and failures in an existing Sysblock model, including simulation, code generation, and custom C-code issues.
Why use it?
It keeps diagnosis and repair separate from creating a new diagram, and preserves the existing model and its settings while collecting evidence.

Skill for Claude CodeCodex

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

Good fit Use it to diagnose or repair abnormal results and failures in an existing Sysblock model, including simulation, code generation, and custom C-code issues.

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Install with agentmods
npx agentmods add skills/suzhou-tongyuan/sysplorer-mcp-server/ty-sysblock-model-debugging
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 Suzhou-Tongyuan/sysplorer-mcp-server --skill ty-sysblock-model-debugging
Clone the repo
git clone --depth 1 https://github.com/Suzhou-Tongyuan/sysplorer-mcp-server

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.

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README.md
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Your own site · 80×15
<a href="https://agentmods.dev/skills/suzhou-tongyuan/sysplorer-mcp-server/ty-sysblock-model-debugging"><img src="https://agentmods.dev/badge/skills/suzhou-tongyuan/sysplorer-mcp-server/ty-sysblock-model-debugging.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,803 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 $0.00079 $0.01803
Opus 5.5 $0.00032 $0.00721
Sonnet 5.5 $0.00016 $0.00361
Haiku 4.5 $0.00008 $0.00180

Measured 19d ago against content hash 3456d8e011b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ty-sysblock-model-debugging 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 19d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/debug_workspace.py, scripts/extract_debug_evidence.py, scripts/query_sysplorer_help.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

resources/modeling_skills/ty-sysblock-model-debugging/SKILL.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sysblock Model Debugging

Use official structured APIs for topology and parameters in one verified task-owned copy. Record source/working identities and preserve target settings. For ordinary Sysblock edits/delivery, reuse ty-sysblock-diagram-modeling API, layout, save/reload and audit constraints; add signal-skill constraints only for relevant signal tasks. Only physical-top-level changes need the physical modeling skill. Loading constraints never reroutes or restarts this debug workflow. Ordinary construction, editing, layout and tuning remain with their existing skills.

Task Mode and Applicable Constraints

Enter directly from a concrete fault; neither the modeling router nor the debug router is a prerequisite. Select diagnose_only or repair from the request. In diagnose-only mode, inspect and, only if authorized, reproduce the needed stage; report the cause or evidence gap and stop without a patch. Offline review does not authorize execution. Repairs follow the workflow below.

Record the requested terminal stage and user acceptance before execution. Reuse the existing attributable baseline, valid session, and task-owned working copy; do not reroute, replan, or recreate them when loading another skill's constraints. Construction-stage debugging returns to the original construction task.

Fast Path

For a simple single-model or anchored CCaller fault, keep the workflow near 12 external calls when practical.

  1. Read the staged model identity, structured state, source files, and hashes once. Do not scan Git, unrelated directories, helper source, or all API docs.
  2. Extract every user acceptance invariant, including expected values, signs, units, ranges, sample times, stop time, and KPIs.
  3. Confirm the target through Sysplorer MCP before first live access: use session_manager(action="probe") when available, then health. Reuse valid same-session evidence; recheck after a switch, disconnection or infrastructure symptom. Offline artifact inspection needs no session call. Resolve unknown API contracts before calling; do not enumerate all APIs.
  4. Read only the failed block, direct neighbors, relevant ports/connections, parameters, and target configuration.
  5. Form one falsifiable hypothesis. Apply one minimal structured model change or one user-source patch, then read back the changed value/source and hash.
  6. Rerun the affected stage and final functional acceptance. Build or simulation success alone is insufficient when the KPI is wrong.

Read the full file on GitHub · 159 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. 19d ago First seen · 159 lines · 79 tokens per session scan A 3456d8e011b7

Subscribe to this mod's changes

ty-sysblock-model-debugging is a skill published in the GitHub repository Suzhou-Tongyuan/sysplorer-mcp-server (10 stars, last pushed 20d ago), licensed MIT. It adds 79 tokens to every session and 1,803 once invoked, about $0.0003 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 2026-10-13.

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