gof-command SKILL.md skillA
gof-command from robsonkades/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add robsonkades/agent-skills/gof-command@git:20261016.c769bd8Pins git:20261016.c769bd8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- robsonkades/agent-skills
- Path
skills/gof-command/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261016.c769bd8, committed Oct 16, 2026
- First version recorded
- Sep 6, 2026
- Size
- 12,963 bytes
- Repository stars
- 3
- License
- Apache-2.0
Command in modern Java: turning an invocation into an object so it can be queued, logged, scheduled, retried or undone — and the distinction from an event, which is a fact rather than a request. Covers when reifying a call earns its cost and when a method reference is enough, undo through inverses versus mementos versus compensation, what changes when a command is persisted or sent to a broker (versioning, at-least-once delivery, idempotency), and the captured-state hazard when a command…
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
# Command ## Purpose Make "do this" a value. Once an invocation is an object it can be parameterized, composed, stored, queued, replayed, audited, undone or scheduled. Instrumentation can observe ordinary method calls too; Command matters when the invocation itself needs identity, lifetime or polymorphic handling. Those capabilities are the justification test. A synchronous command may still decouple an invoker from receivers or parameterize UI/workflow actions, but `GetCustomerByIdCommand` plus a handler that merely calls one repository often adds ceremony without a consumer of reification. Start with ordinary caller code, a composed/deferred use and a misuse or failure path. Reuse the project's current callbacks, dispatch and history before adding a bus. Establish who owns the result, execution thread/lifetime, captured state and each effect; ask only when a missing ordering, undo or retry requirement changes the choice. Compare the direct call/callback with a named command or existing framework dispatcher. Finish with that choice, its contracts and an observable success/failure check; an adequate existing callback is a valid result. ## Command is not Event ```text …
Read the whole file at its exact version.
How to install
mdr add robsonkades/agent-skills/gof-command@sha256:a0596b754ca228eeThe line at the top of this page pins the label git:20261016.c769bd8, 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_fbri5tjuy47sbfr4)
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Versions
The registry has recorded 5 versions of this file, between Sep 6, 2026 and Oct 16, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.c769bd8 latest | 2026-10-16 | c769bd8 | 12,963 B | A | view · diff |
| git:20260927.9ecadfd | 2026-09-27 | 9ecadfd | 12,847 B | A | view · diff |
| git:20260923.832673e | 2026-09-23 | 832673e | 12,151 B | A | view · diff |
| git:20260911.37b054b | 2026-09-11 | 37b054b | 11,983 B | A | view · diff |
| git:20260906.e6ad4bd | 2026-09-06 | e6ad4bd | 10,558 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 (12963 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
robsonkades/agent-skills · 3 stars · license Apache-2.0 · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fbri5tjuy47sbfr4 GET https://markdownregistry.com/api/v1/resolve?ref=robsonkades/agent-skills/gof-command GET https://markdownregistry.com/api/v1/blob/a0596b754ca228ee83e12841850c615dc9673cb03f9d8645e6d1439ac90199aa
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.