test-plugin-harnessing SKILL.md skillA

test-plugin-harnessing 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/test-plugin-harnessing@git:20260920.e60b5e1

Pins git:20260920.e60b5e1 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
using-system/oddyssey
Path
.claude/skills/test-plugin-harnessing/SKILL.md
Versions recorded
10
Latest version
git:20260920.e60b5e1, committed Sep 20, 2026
First version recorded
Sep 7, 2026
Size
19,209 bytes
Repository stars
10
License
MIT

Measure and optimise one phase of an oddyssey run - preflight, drive, observation, or the whole run - under one of the coding-agent CLIs the package is benchmarked on (opencode, claude, copilot), against main measured just before the work. Use when a phase is too slow or too expensive, when a harnessing change must be proven rather than asserted, when a run is suspected of composing work the package should ship, and before the PR of any change on the path of /odd-observe, /odd-verify or…

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

# Testing a phase of the plugin's harness

`launch-llms-benchmark` asks *how good is this model's report*. This asks
a different question: **how much work does the package still make the
model compose before it can do anything** — and it answers it for one
named phase at a time, under one named CLI. Do not run the benchmark
protocol for this; it grades findings, costs a full run, and its row is
not what moves when a skill stops making the model write a script.

The rules a change here must satisfy are `AGENTS.md`'s **Plugin
harnessing** section. This skill is how you prove one landed — and that
section says when a measurement is owed: before the PR of any change on
the path of `/odd-observe`, `/odd-verify` or `/odd-status`.

## What you need before starting

- **The phase**, named by the caller: `preflight`, `drive`,
  `observation`, or `whole`. Ask if it is not named — measuring the
  wrong phase wastes the run.
- **The CLI** the runs are driven by: `opencode`, `claude` or
  `copilot` — the three `launch-llms-benchmark` runs, and the source
  of everything CLI-specific here: how a run is launched headless, the
  form of the model id it takes, where its session lives and how it is
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add using-system/oddyssey/test-plugin-harnessing@sha256:95673b3e0251aadf

The line at the top of this page pins the label git:20260920.e60b5e1, 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_fo673bhna2yywlne.svg)](https://markdownregistry.com/a/art_fo673bhna2yywlne)

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

Versions

The registry has recorded 10 versions of this file, between Sep 7, 2026 and Sep 20, 2026, about one every day.

versioncommittedcommitsizeaudit
git:20260920.e60b5e1 latest2026-09-20 e60b5e1 19,209 BA view · diff
git:20260920.fe8fe362026-09-20 fe8fe36 19,209 BA view · diff
git:20260919.359946a2026-09-19 359946a 19,144 BA view · diff
git:20260914.4400c352026-09-14 4400c35 19,053 BA view · diff
git:20260914.82cc2192026-09-14 82cc219 16,706 BA view · diff
git:20260912.1927ef42026-09-12 1927ef4 16,706 BA view · diff
git:20260911.3b321572026-09-11 3b32157 14,223 BA view · diff
git:20260909.75a928e2026-09-09 75a928e 10,199 BA view · diff
git:20260909.b4a528b2026-09-09 b4a528b 8,908 BA view · diff
git:20260907.f3841042026-09-07 f384104 6,358 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (19209 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 link to a raw IP address
  • pass: No script tag

Source

GitHub

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

API

GET https://markdownregistry.com/api/v1/artifacts/art_fo673bhna2yywlne
GET https://markdownregistry.com/api/v1/resolve?ref=using-system/oddyssey/test-plugin-harnessing
GET https://markdownregistry.com/api/v1/blob/95673b3e0251aadfa3f6b1fca57956e150520af35a9c160b1808beaa02590edb

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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