gof-interpreter SKILL.md skillA
gof-interpreter 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-interpreter@git:20260927.9ecadfdPins git:20260927.9ecadfd 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-interpreter/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260927.9ecadfd, committed Sep 27, 2026
- First version recorded
- Sep 3, 2026
- Size
- 12,016 bytes
- Repository stars
- 3
- License
- Apache-2.0
Interpreter in modern Java: representing a small language as a typed tree and evaluating it, using per-node interpretation or a sealed AST with an exhaustive switch according to the extension contract. Covers parsing as a separate problem the pattern does not solve, when an existing expression language beats writing one, how general expression engines become code-execution surfaces when exposed with unsafe capabilities, the resource bounds an interpreter over untrusted input needs, and closure…
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
# Interpreter ## Purpose Give a small language a typed representation and an evaluator. The pattern is worth its cost when users — or configuration, or another service — must express conditions the code cannot enumerate: filter expressions, pricing formulas, routing rules, feature-flag conditions, alert predicates. Two boundaries help scope it. Parsing is a separate responsibility even though a usable language normally needs it. And the GoF class-per-production approach fits small grammars best; scoping, user functions, recursion, optimization or strict isolation may justify a mature runtime, bytecode VM, or existing language rather than an ever-growing `switch`. Start with actual consumer expressions, existing configuration/query APIs and accepted language semantics. Identify who authors rules, which inputs and capabilities they may use, and whether rules must also be explained, stored or translated. Resolve material type/error/authorization gaps before prescribing a language; retain an adequate existing mechanism when no new grammar is needed. The sealed AST plus pattern-switch examples require Java 21 or later without preview features. …
Read the whole file at its exact version.
How to install
mdr add robsonkades/agent-skills/gof-interpreter@sha256:abf310c02e18f704The line at the top of this page pins the label git:20260927.9ecadfd, 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_y4pkwonf6kucnsgu)
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Versions
The registry has recorded 5 versions of this file, between Sep 3, 2026 and Sep 27, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260927.9ecadfd latest | 2026-09-27 | 9ecadfd | 12,016 B | A | view · diff |
| git:20260923.832673e | 2026-09-23 | 832673e | 11,519 B | A | view · diff |
| git:20260911.37b054b | 2026-09-11 | 37b054b | 11,311 B | A | view · diff |
| git:20260906.e6ad4bd | 2026-09-06 | e6ad4bd | 10,303 B | A | view · diff |
| git:20260903.f199530 | 2026-09-03 | f199530 | 9,508 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 (12016 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_y4pkwonf6kucnsgu GET https://markdownregistry.com/api/v1/resolve?ref=robsonkades/agent-skills/gof-interpreter GET https://markdownregistry.com/api/v1/blob/abf310c02e18f70440dfb2aa29552b43bfff5bf589d5002f060c9e6e8f16a9a9
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.