ras-commander: Skill for Claude Code

.claude/skills/hecras_plan_execution/SKILL.md

hecras_plan_execution is a skill for Claude Code from gpt-cmdr/ras-commander. It costs 125 tokens per session (1,828 once invoked), scanned A, original, MIT.

A decision workflow for choosing how to run HEC-RAS simulation plans. It uses project information to consider execution mode, dependencies, prerequisites, and available resources.

In plain words
What is it for?
Use it to select sequential, test, parallel, or remote execution and to identify blockers before computing plans.
Why use it?
It helps avoid running plans in the wrong order or with unsuitable settings, especially when several plans or remote workers are involved.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; mentions AGENTS.md.

This is gpt-cmdr/ras-commander's own configuration. It tells Claude Code how to work on ras-commander 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 ras-commander configures →

Reuse

Borrowing it

Nothing to install: this file belongs to gpt-cmdr/ras-commander. 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/gpt-cmdr/ras-commander/main/.claude/skills/hecras_plan_execution/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/gpt-cmdr/ras-commander

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.

agentmods badge for hecras_plan_execution

README.md
[![agentmods](https://agentmods.dev/badge/skills/gpt-cmdr/ras-commander/hecras_plan_execution/github.svg)](https://agentmods.dev/skills/gpt-cmdr/ras-commander/hecras_plan_execution)
Your own site
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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 hecras_plan_execution

Your own site · 80×15
<a href="https://agentmods.dev/skills/gpt-cmdr/ras-commander/hecras_plan_execution"><img src="https://agentmods.dev/badge/skills/gpt-cmdr/ras-commander/hecras_plan_execution.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 125 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,828 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Agent Snooping · line 29
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
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 $0.00125 $0.01828
Opus 5 $0.00063 $0.00914
Sonnet 5 $0.00025 $0.00366
Haiku 4.5 $0.00013 $0.00183

Measured 9d ago against content hash 8c3b146fba8f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

hecras_plan_execution 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/skills/hecras_plan_execution/SKILL.md · 254 lines

How it starts

The opening of the file, as written. The whole thing — 254 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Planning HEC-RAS Execution

Analyze the Project Inspector output and generate an actionable execution plan. Select the optimal execution mode, recommend parameters, and identify blockers.

Primary Sources

Read the primary sources below; do not duplicate their content.

  • .claude/rules/hec-ras/execution.md - Complete execution mode documentation
  • .claude/agents/hecras-project-inspector.md - Project Intelligence Report schema
  • .claude/skills/hecras_compute_rascontrol/SKILL.md - Legacy HEC-RAS (< 6.0)

Mode Selection Decision Tree

1. Is HEC-RAS version < 6.0?
   YES -> Use RasControl (hecras_compute_rascontrol skill)
   NO  -> Continue

2. How many runnable plans?
   ZERO    -> Report blockers, stop
   ONE     -> compute_plan() [+ stream_callback if monitoring needed]
   MULTIPLE -> Continue to step 3

3. Multiple Plan Decision:
   Debugging/diagnosing? -> compute_test_mode()
   Have remote workers?  -> compute_parallel_remote()
   Production/batch?     -> compute_parallel()

Mode Selection Matrix

Context Plans Mode Rationale
Debugging Any compute_test_mode() Sequential, single folder
Single plan, monitoring 1 compute_plan() + callback Real-time output
Single plan, quick 1 compute_plan() Simplest API
Multiple plans, production 2+ compute_parallel() Fastest throughput
Distributed infrastructure 2+ compute_parallel_remote() Scale-out
HEC-RAS < 6.0 Any RasControl COM-based required
Resume interrupted 2+ compute_parallel(skip_existing=True) Skips completed

Input: Project Intelligence Report

Expect this input format from the Project Inspector Agent:

## Plans Analysis
| Plan | Title | Status | Geometry | Flow | Issues |
|------|-------|--------|----------|------|--------|
| 01 | Baseline | Runnable | g01 | u01 | None |
| 02 | Future | Missing geom | g03 (MISSING) | u02 | Geometry file not found |

### Execution Readiness
- **Ready to Run**: 01, 03
- **Blocked**: 02 (missing geometry g03)

Read the full file on GitHub · 254 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. 9d ago First seen · 254 lines · 125 tokens per session scan A 8c3b146fba8f

Subscribe to this mod's changes

hecras_plan_execution is a skill published in the GitHub repository gpt-cmdr/ras-commander (79 stars, last pushed today), licensed MIT. It adds 125 tokens to every session and 1,828 once invoked, about $0.0006 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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