cli-usage

A set of command-line tools for pyHMT2D, a package for working with two-dimensional hydraulic models. The commands calibrate models, convert HEC-RAS cases to SRH-2D, and process model results.

In plain words
What is it for?
Use it to calibrate SRH-2D or HEC-RAS models, convert HEC-RAS 2D cases, turn result files into formats such as VTK or CSV, and generate analysis reports.
Why use it?
It lets you run these model tasks from a terminal using configuration files and input data, instead of handling each operation manually.

Cursor rule for Cursor

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.

agentmods
npx agentmods add rules/psu-efd/pyhmt2d/cli-usage
Clone the repo
git clone --depth 1 https://github.com/psu-efd/pyHMT2D

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 613 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00613
Opus 5 $0.00000 $0.00307
Sonnet 5 $0.00000 $0.00123
Haiku 4.5 $0.00000 $0.00061

Measured yesterday against content hash f578191128ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cli-usage 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 yesterday.

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.

.cursor/rules/cli-usage.mdc · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Command-Line Interface Usage

This rule covers the command-line interface (CLI) tools available in pyHMT2D.

Available Commands

Location: pyHMT2D/cli/

Model Calibration

hmt-calibrate calibration.json
  • Runs model calibration using the specified configuration file
  • Supports both SRH-2D and HEC-RAS models
  • Outputs calibration results and statistics

Model Conversion

hmt-ras-to-srh Muncie2D.p01.hdf Terrain/TerrainMuncie_composite.tif srh_Muncie
  • Converts HEC-RAS 2D case to SRH-2D format
  • Requires HDF file and terrain data
  • Outputs SRH-2D compatible files

Result Processing

hmt-process-results results.hdf --output vtk
  • Processes model results
  • Converts to various formats (VTK, CSV, etc.)
  • Generates analysis reports

Configuration Files

Calibration Configuration

{
    "model_type": "SRH-2D",
    "parameters": {
        "manning_n": {
            "initial": 0.03,
            "min": 0.01,
            "max": 0.1
        }
    },
    "objective_function": {
        "type": "rmse",
        "observed_data": "observed.csv"
    }
}

Parametric Study Configuration

{
    "study_type": "single_parameter",
    "parameter": "manning_n",
    "values": [0.01, 0.02, 0.03, 0.04, 0.05],
    "output_format": "vtk"
}

Common Options

Most commands support these options:

  • --verbose: Enable detailed output
  • --output-dir: Specify output directory
  • --format: Choose output format
  • --parallel: Enable parallel processing

Examples

  1. Basic Calibration:
hmt-calibrate config.json --output-dir results
  1. Model Conversion with Custom Options:
hmt-ras-to-srh input.hdf terrain.tif output --format vtk --parallel
  1. Result Processing with Multiple Formats:
hmt-process-results results.hdf --format vtk,csv,excel

Error Handling

Common error messages and solutions:

  1. File not found
    • Check file paths in configuration
    • Verify file permissions

Read the full file on GitHub · 110 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. yesterday First seen · 110 lines · 0 tokens per session scan A f578191128ce

Subscribe to this mod's changes

cli-usage is a cursor rule published in the GitHub repository psu-efd/pyHMT2D (128 stars, last pushed 22d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 613 tokens. 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.