swmm-uncertainty SKILL.md skillA
swmm-uncertainty from zhonghao1995/agentic-swmm-workflow is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add zhonghao1995/agentic-swmm-workflow/swmm-uncertainty@git:20260904.8bf7b99Pins git:20260904.8bf7b99 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- zhonghao1995/agentic-swmm-workflow
- Path
skills/swmm-uncertainty/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260904.8bf7b99, committed Sep 4, 2026
- First version recorded
- Sep 2, 2026
- Size
- 21,512 bytes
- Repository stars
- 31
- License
- MIT
Parameter and forcing uncertainty for EPA SWMM. Without observed flow, call propagate_parameter_ranges (global ranges, one SWMM run per sample, peak spread); the Morris/OAT/Sobol tools need an observed series. Use when an agent needs to (1) propagate parameter uncertainty through SWMM (fuzzy alpha-cut or Monte Carlo), (2) quantify hydrograph envelopes or output entropy without treating the run as calibration, (3) screen which parameters matter using OAT / Morris elementary-effects / Sobol'…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# SWMM Uncertainty
Part of [Agentic SWMM](https://github.com/Zhonghao1995/agentic-swmm-workflow) — install the project first for the executable toolchain (aiswmm CLI, SWMM solver, MCP servers).
## Agent path without observed data
The honest split (live findings F-107 and F-109, 2026-09-03): WITH observed
flow, `swmm_sensitivity_oat` / `swmm_sensitivity_morris` / `swmm_sensitivity_sobol`
rank parameters against the data (they need an observed series and a patch
map). WITHOUT observed flow, `propagate_parameter_ranges` is the tool for both
questions: `mode=one_at_a_time` varies each parameter alone in one call and
returns a per-parameter spread and a ranking ("which parameters matter most");
the default `joint` mode samples all ranges together and reports the spread
("how uncertain is the peak"). Never emulate a ranking with one sweep per
parameter. Rainfall: a request to scale the observed event by factors (0.8,
1.0, 1.2) on a model with inline rain is `run_climate_scenarios` with those
factors (live finding F-112, 2026-09-03); `swmm_rainfall_ensemble` needs a
prepared rainfall series file and a JSON config (perturbation or IDF).
…Read the whole file at its exact version.
How to install
mdr add zhonghao1995/agentic-swmm-workflow/swmm-uncertainty@sha256:fc1cf2ab8b848ac7The line at the top of this page pins the label git:20260904.8bf7b99, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_rrekbxjw7saoi3rn)
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Versions
The registry has recorded 5 versions of this file, between Sep 2, 2026 and Sep 4, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260904.8bf7b99 latest | 2026-09-04 | 8bf7b99 | 21,512 B | A | view · diff |
| git:20260904.018d202 | 2026-09-04 | 018d202 | 21,225 B | A | view · diff |
| git:20260904.75610c0 | 2026-09-04 | 75610c0 | 21,171 B | A | view · diff |
| git:20260903.fd126ac | 2026-09-03 | fd126ac | 20,594 B | A | view · diff |
| git:20260902.af3df3c | 2026-09-02 | af3df3c | 19,775 B | A | view |
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Source
zhonghao1995/agentic-swmm-workflow · 31 stars · license MIT · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rrekbxjw7saoi3rn GET https://markdownregistry.com/api/v1/resolve?ref=zhonghao1995/agentic-swmm-workflow/swmm-uncertainty GET https://markdownregistry.com/api/v1/blob/fc1cf2ab8b848ac7b07a7f089e7e1bbf70bc1b461ca999584bd974fbfc2c1262
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