What is MathModeling-skills CLAUDE.md?

Project instructions for a mathematical-modeling skills package, where mathematical modeling means using equations and data to represent a real problem. They define the workflow, required records, and rules for keeping Claude and Codex versions aligned.

Reading the correct instructions for each stage, maintaining planning files, passing compact evidence between skills, synchronizing skill trees, and validating the package before release.

They make each modeling task follow the same review gates and preserve decisions and evidence, reducing duplicated work and inconsistent project state.

How zhnnky329/MathModeling-skills configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to zhnnky329/MathModeling-skills. 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/zhnnky329/MathModeling-skills/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/zhnnky329/MathModeling-skills

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/zhnnky329/mathmodeling-skills/claude-md/github.svg)](https://agentmods.dev/instructions/zhnnky329/mathmodeling-skills/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/zhnnky329/mathmodeling-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/zhnnky329/mathmodeling-skills/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/zhnnky329/mathmodeling-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/zhnnky329/mathmodeling-skills/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 574 This file is loaded in full into every session.

When invoked 574 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00574	$0.00574
Opus 5	$0.00287	$0.00287
Sonnet 5	$0.00115	$0.00115
Haiku 4.5	$0.00057	$0.00057

Measured 9d ago against content hash d70e6963a312, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

MathModeling-skills CLAUDE.md 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 9d 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.

CLAUDE.md · 38 lines

How it starts

The opening of the file, as written. The whole thing — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mathematical Modeling Workflow

AGENTS.md is the single source of truth for workflow policy, gates, artifacts, human decisions, risk probes, freezing, and audits. Read and follow it before invoking a modeling skill.

.claude/skills/ is a complete standalone skill tree, not an adapter to .codex/skills/. When maintaining a shared skill, keep the full counterpart in both trees and validate both; do not replace either copy with wrappers or symlinks.

The native distribution package lives under plugins/mathmodeling-skills/. After updating both standalone trees, run scripts/sync-plugin.sh and validate both platform manifests before release.

Claude-Specific Operating Rules

Do not duplicate the full workflow contract in individual responses or generated artifacts.
Load only the skill needed for the current gate and only the referenced material needed for the current task.
Pass paths plus a compact evidence digest between skills; do not paste entire upstream reports when paths are available.
Treat planning/manifests/Qx.json as the state source. Derive status views instead of maintaining duplicate dashboards.
Use planning/session_config.json with independent interaction_mode and rigor_profile controls. Read legacy mode only for compatibility.
In lean, create only the lean artifact set defined in AGENTS.md.
In submission, add final explanations, reviews, reports, frozen numbers, paper sections, and the three final audits.
Capture human judgments in methods/Qx/qx_decisions.jsonl. Do not create new per-skill *_modeler_decision.md files.
Never originate a human-owned modeling choice, rationale, confidence verdict, physical interpretation, or submission authorization.
Replace universal PoCs with the method-specific risk probe defined in AGENTS.md; do not use source-line count as evidence quality.
Fully implement only the approved main method and usable baseline. Activate a fallback only when its recorded trigger fires.
Persist full logs only for failures or reproducibility needs.
Run scoped consistency checks only for CANONICAL or FROZEN changes. Run all three auditors before final assembly.
Never edit frozen_numbers.json manually.

Read the full file on GitHub · 38 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.

9d ago First seen · 38 lines · 574 tokens per session scan A d70e6963a312

Subscribe to this mod's changes

MathModeling-skills CLAUDE.md is an instructions file published in the GitHub repository zhnnky329/MathModeling-skills (806 stars, last pushed 15d ago), licensed MIT. It adds 574 tokens to every session, about $0.0029 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 2026-08-30.

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MathModeling-skills: Instructions file for Claude Code