designing-mas-plugins SKILL.md skillA
designing-mas-plugins from qte77/claude-code-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add qte77/claude-code-plugins/designing-mas-plugins@git:20260411.75d7792Pins git:20260411.75d7792 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- qte77/claude-code-plugins
- Path
plugins/mas-design/skills/designing-mas-plugins/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260411.75d7792, committed Apr 11, 2026
- First version recorded
- Feb 22, 2026
- Size
- 3,549 bytes
- Repository stars
- 3
- License
- Apache-2.0
Design evaluation plugins following 12-Factor + MAESTRO principles.
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
# Designing MAS Plugins **Target**: $ARGUMENTS ## When to Use Trigger this skill when: - Designing agent plugins or evaluation components - Planning pipeline architecture - Architecting new metrics or evaluation tiers - Refactoring engines into plugin patterns ## Core Principles Plugins follow six principles. For worked code examples of each, see `references/core-principles-with-examples.md`. 1. **Stateless Reducer** — `evaluate(context) -> result` as a pure function; no side effects, no shared state 2. **Own Context Window** — plugin manages its own context; no global state access 3. **Structured Outputs** — all data uses validated models, no raw dicts 4. **Own Control Flow** — plugin handles its own errors and timeouts 5. **Compact Errors** — structured partial results, not exceptions 6. **Single Responsibility** — one metric or tier per plugin ## Plugin Design Checklist Before implementing a plugin, verify: - [ ] **Stateless**: No class attributes, no global state - [ ] **Own Context**: All inputs via `evaluate()` parameter - [ ] **Typed I/O**: Validated models for inputs and outputs - [ ] **Own Errors**: Returns error results, doesn't raise …
Read the whole file at its exact version.
How to install
mdr add qte77/claude-code-plugins/designing-mas-plugins@sha256:e6044ba8905c0b03The line at the top of this page pins the label git:20260411.75d7792, 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_xghnyysxgtfsabpg)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Feb 22, 2026 and Apr 11, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260411.75d7792 latest | 2026-04-11 | 75d7792 | 3,549 B | A | view · diff |
| git:20260322.75aadc6 | 2026-03-22 | 75aadc6 | 5,736 B | A | view · diff |
| git:20260301.2e7e6b3 | 2026-03-01 | 2e7e6b3 | 5,593 B | A | view · diff |
| git:20260301.26f7262 | 2026-03-01 | 26f7262 | 5,364 B | A | view · diff |
| git:20260222.2b61bad | 2026-02-22 | 2b61bad | 5,373 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3549 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
qte77/claude-code-plugins · 3 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xghnyysxgtfsabpg GET https://markdownregistry.com/api/v1/resolve?ref=qte77/claude-code-plugins/designing-mas-plugins GET https://markdownregistry.com/api/v1/blob/e6044ba8905c0b03f6682d8d34f59842118eead55e4c827a6f82a2ddd8d60eb0
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.