agentmods.dev

pyHMT2D: Skill for Claude Code

.agents/skills/hmt-run/SKILL.md

hmt-run is a skill for Claude Code, Codex from psu-efd/pyHMT2D. It costs 38 tokens per session (393 once invoked), scanned A, original, MIT.

A run tool for pyHMT2D, a program that models water flow in rivers, channels, and flood areas. It prepares the open SRH-2D project and runs its hydraulic simulation, or runs an HEC-RAS model.

In plain words
What is it for?
Use it to run a saved hydraulic model, check that result files exist, and continue to result queries or VTK export for ParaView, a tool for viewing scientific data.
Why use it?
It avoids manually starting the right preparation and simulation commands and checking whether output files were created. It also reports errors and points to the log when a run fails.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is psu-efd/pyHMT2D's own configuration. It tells Claude Code and Codex how to work on pyHMT2D itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything pyHMT2D configures →

not rated 134repo 2mo ago A scan SkillSpector: pass 38 tokens original MIT
View source ↗ psu-efd/pyHMT2D
Reuse

Borrowing it

Nothing to install: this file belongs to psu-efd/pyHMT2D. 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/psu-efd/pyHMT2D/main/.agents/skills/hmt-run/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/psu-efd/pyHMT2D

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 hmt-run

README.md
[![agentmods](https://agentmods.dev/badge/skills/psu-efd/pyhmt2d/hmt-run/github.svg)](https://agentmods.dev/skills/psu-efd/pyhmt2d/hmt-run)
Your own site
<a href="https://agentmods.dev/skills/psu-efd/pyhmt2d/hmt-run"><img src="https://agentmods.dev/badge/skills/psu-efd/pyhmt2d/hmt-run/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.

agentmods 80×15 button for hmt-run

Your own site · 80×15
<a href="https://agentmods.dev/skills/psu-efd/pyhmt2d/hmt-run"><img src="https://agentmods.dev/badge/skills/psu-efd/pyhmt2d/hmt-run.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 393 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00038 $0.00393
Opus 5.5 $0.00015 $0.00157
Sonnet 5.5 $0.00008 $0.00079
Haiku 4.5 $0.00004 $0.00039

Measured 2mo ago against content hash 9c711cc4c914, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hmt-run 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 2mo 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.

.agents/skills/hmt-run/SKILL.md · 39 lines

What it actually says

Run preprocessing (SRH-2D) and the hydraulic simulation for the open project.

Prerequisites

A project must be open (/hmt-open) and input files must be saved.

Steps

  1. Check the session. Read .hmt_session.json for model_type. If no project is open, ask the user to run /hmt-open first.

  2. Run preprocessing (SRH-2D only). Skip this step for HEC-RAS models.

    hmt-cli run_preprocessing

    Report elapsed time on success. On error: show the message and stop.

  3. Run the simulation.

    hmt-cli run_simulation --args '{"timeout_minutes": 120}'

    For HEC-RAS, pass "faceless": false by default. If the user does not want to see the GUI window, pass "faceless": true. Warn the user this may take several minutes. Report elapsed time and status. On error: show the message and suggest checking pyHMT2D.log.

  4. Confirm result files were created.

    hmt-cli list_model_files --args '{"directory": "."}'

  5. Suggest next steps: "Run /hmt-results to query output, or /hmt-export to create VTK files for ParaView." For HEC-RAS runs with faceless=false: "Run hmt-cli exit_model to close the HEC-RAS GUI, or hmt-cli close_session to reset the session entirely."

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. 2mo ago First seen · 39 lines · 38 tokens per session scan A 9c711cc4c914

Subscribe to this mod's changes

hmt-run is a skill published in the GitHub repository psu-efd/pyHMT2D (134 stars, last pushed 2mo ago), licensed MIT. It adds 38 tokens to every session and 393 once invoked, about $0.0002 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 2026-08-30.

Scientificagenticaiautomationcomputational-hydraulicshec-rassrh-2d
Related

hmt-run compared with skills from other repositories

hmt-run next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
hmt-runpsu-efd/pyHMT2DSkill1342mo agoMITA38Claude Code, Codex
academic-paper-reviewbytedance/deer-flowSkill85kyesterdayMITA95Claude Code, Codex
personal-genomicssammcj/agentic-codingSkill1682d agoApache-2.0A56Claude Code
huggingface-vision-trainermetaspartan/cybaraSkill34yesterdayMITA37Claude Code, Codex
huggingface-papersmetaspartan/cybaraSkill34yesterdayMITA30Claude Code, Codex
publish-the-run-that-did-not-workbrcampidelli/chimera-agentSkill29yesterdayApache-2.0A38Claude Code, Codex
suap-iff-apipedroiff0/awesome-skillsSkill114d agoMITA102Claude Code, Codex