run-scenario SKILL.md skillB

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

run-scenario from using-system/oddyssey is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add using-system/oddyssey/run-scenario@git:20260914.34daa72

Pins git:20260914.34daa72 in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 16 of 17 checks passed
Kind
SKILL.md skill
Repository
using-system/oddyssey
Path
marketplace/oddyssey/skills/run-scenario/SKILL.md
Versions recorded
9
Latest version
git:20260914.34daa72, committed Sep 14, 2026
First version recorded
Aug 30, 2026
Size
10,377 bytes
Repository stars
10
License
MIT

Drive a reproducible request scenario against a locally running service - ad-hoc requests, or a stored k6 benchmark from .odd/benchmarks/ - and record it verbatim, so the telemetry it produces can be compared with a later run. Use when traffic must be generated before observing a service, when a stored k6 benchmark must be run, when an observation report needs a replayable scenario, or when verifying after a fix that the same scenario now measures better.

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

# Run a Scenario

One protocol on both ends of the ODD loop: the same commands that produced
the numbers in an observation report produce the numbers that verify the
fix. A scenario that cannot be replayed verbatim makes before/after
comparison an impression, not a measurement.

**A step this package ships a script for is run, never rewritten.** The
ad-hoc drive is this skill's `scripts/drive_scenario.py` (step 2); a
stored benchmark's replay is `k6-guides`' `scripts/replay_benchmark.py`
(`references/benchmark-replay.md`). A curl loop, a helper with a `sleep`
in it, a poller written for either yields a different command each time —
two runs then measure two things.

## Read by situation

Steps 1 to 5 and the rules are the method; a reference is read by the
block that applies, never whole:

| Situation | Reference |
| --- | --- |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add using-system/oddyssey/run-scenario@sha256:436fe6175abdbdf0

The line at the top of this page pins the label git:20260914.34daa72, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_wzqehobrlilyl3lm.svg)](https://markdownregistry.com/a/art_wzqehobrlilyl3lm)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 9 versions of this file, between Aug 30, 2026 and Sep 14, 2026, about one every 2 days. Its first recorded version is graded A and its latest B.

versioncommittedcommitsizeaudit
git:20260914.34daa72 latest2026-09-14 34daa72 10,377 BB view · diff
git:20260910.8b8e2ed2026-09-10 8b8e2ed 11,358 BB view · diff
git:20260907.4a987fd2026-09-07 4a987fd 11,182 BB view · diff
git:20260906.93198672026-09-06 9319867 10,333 BB view · diff
git:20260905.1a739412026-09-05 1a73941 9,498 BB view · diff
git:20260904.d883e272026-09-04 d883e27 8,179 BB view · diff
git:20260903.b39709c2026-09-03 b39709c 21,949 BC view · diff
git:20260902.fdf2ae32026-09-02 fdf2ae3 17,519 BB view · diff
git:20260830.a69e7082026-08-30 a69e708 10,613 BA view

Audit of the latest version

B  16 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • fail: No link to a raw IP address (matched: http://127.0.0.1)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10377 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No script tag

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

using-system/oddyssey · 10 stars · license MIT · pushed 2026-11-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_wzqehobrlilyl3lm
GET https://markdownregistry.com/api/v1/resolve?ref=using-system/oddyssey/run-scenario
GET https://markdownregistry.com/api/v1/blob/436fe6175abdbdf00aaf87bcad5b7092589905bb4556517cbc3fada3f1ff3634

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in using-system/oddyssey

Other files named run-scenario

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