harness_portability SKILL.md skillA

harness_portability from theafh/ai-modules is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add theafh/ai-modules/harness_portability@v1.0.18

Pins v1.0.18 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
theafh/ai-modules
Path
plugins/ai_dev/skills/harness_portability/SKILL.md
Versions recorded
9
Latest version
v1.0.18, committed Nov 7, 2026
First version recorded
Jul 26, 2026
Size
28,341 bytes
Repository stars
39
License
MIT

Cross-agent-harness and cross-OS portability review for runtime artefacts bundled inside skills and plugins. Use when creating, editing, reviewing, or troubleshooting shell scripts, Python or Node helpers, hooks and hook configuration, MCP servers, command wrappers, setup and install flows, plugin wiring, agent and subagent definitions, agent frontmatter, tool allowlists, read-only agent enforcement, output styles and their per-harness rules-file and instructions-file counterparts, skill…

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

# harness_portability

<harness_portability>
  <objective>
    Keep bundled skill and plugin runtime artefacts portable across agent harnesses and operating systems. Apply this skill whenever a change creates or edits scripts, hooks, agent definitions, MCP helpers, command wrappers, setup flows, output styles, or the skill and plugin wording that tells future agents how to execute, initialize, or configure those artefacts.
  </objective>

  <scope>
    <included_artefacts>
      Apply these rules to Bash, POSIX shell, Python, JavaScript, TypeScript, Node.js, and other executable files shipped inside skills, agents, commands, hooks, MCP servers, plugin directories, and their supporting resources. Apply them equally to prose that wires those files into agent workflows, and to agent and subagent definition files themselves, whose frontmatter and body each harness parses under its own schema. Include a component type that only one harness implements, because the portability question there is which harnesses the component reaches and what carries the same intent on the rest.
    </included_artefacts>
    <target_harnesses>
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add theafh/ai-modules/harness_portability@sha256:a727ad78523efc24

The line at the top of this page pins the label v1.0.18, 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_uyvxw5zc626smdg6.svg)](https://markdownregistry.com/a/art_uyvxw5zc626smdg6)

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

Versions

The registry has recorded 9 versions of this file, between Jul 26, 2026 and Nov 7, 2026, about one every 13 days.

versioncommittedcommitsizeaudit
v1.0.18 latest2026-11-07 b4c3128 28,341 BA view · diff
v1.0.172026-11-05 37d0de3 27,758 BA view · diff
v1.0.162026-10-13 0cf0227 27,341 BA view · diff
v1.0.152026-10-03 a504e89 26,807 BA view · diff
v1.0.142026-08-08 0b413cd 24,765 BA view · diff
v1.0.132026-08-07 bcafcbb 94,362 BA view · diff
v1.0.122026-08-07 1f2e479 87,319 BA view · diff
v1.0.112026-07-26 bd51458 54,934 BA view · diff
v1.0.112026-07-26 7089bcb 54,243 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 (28341 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

theafh/ai-modules · 39 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_uyvxw5zc626smdg6
GET https://markdownregistry.com/api/v1/resolve?ref=theafh/ai-modules/harness_portability
GET https://markdownregistry.com/api/v1/blob/a727ad78523efc243985653d60229b88a34ecebc880495ace1d6a202987b159c

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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