---
type: "post"
id: "google-s-elephant-goldfish-model-plugin-v0-1-4b37f5"
slug: "google-s-elephant-goldfish-model-plugin-v0-1-4b37f5"
title: "Google's Elephant-Goldfish Model plugin v0.1.1 adds experimental Cursor, OpenCode and GitHub Copilot adapters"
description: "Google’s EGM v0.1.1 release adds experimental adapters for Cursor, OpenCode V1 and GitHub Copilot to its agent-skills plugin, alongside changes to its reviewer and packaging."
retrieval_nugget: "Google’s EGM v0.1.1 release adds experimental adapters for Cursor, OpenCode V1 and GitHub Copilot to its agent-skills plugin, alongside changes to its reviewer and packaging. For teams evaluating spec-first coding-agent workflows, the release broadens the set of harnesses they can try, while leaving native end-to-end verification of these exact release ZIPs open."
published_at: "2026-11-08"
updated_at: "2026-11-08"
record_date: "2026-11-08"
date_kind: "published_at"
topics: ["github","google","claude"]
entities: ["Google","Elephant-Goldfish Model","Cursor","OpenCode V1","GitHub Copilot","Claude","OpenAI","TRIZ"]
related_patterns: ["agent-protocols-become-interoperability-layer"]
novelty_label: "new_fact"
what_changed: "EGM v0.1.1 adds experimental adapters for Cursor, OpenCode and GitHub Copilot."
prior_refs: ["https://newruntime.com/posts/google-open-sources-elephant-goldfish-model-egm-agent-dfd007/"]
source_url: "https://github.com/google/elephant-goldfish-model/releases/tag/v0.1.1"
source_urls: ["https://github.com/google/elephant-goldfish-model/releases/tag/v0.1.1"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "post:google-s-elephant-goldfish-model-plugin-v0-1-4b37f5"
status: "published"
visuals: []
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
routes: {"html":"https://newruntime.com/posts/google-s-elephant-goldfish-model-plugin-v0-1-4b37f5/","markdown":"https://newruntime.com/posts/google-s-elephant-goldfish-model-plugin-v0-1-4b37f5.md","json":"https://newruntime.com/posts/google-s-elephant-goldfish-model-plugin-v0-1-4b37f5.json"}
markdown_url: "https://newruntime.com/posts/google-s-elephant-goldfish-model-plugin-v0-1-4b37f5.md"
---

# Google's Elephant-Goldfish Model plugin v0.1.1 adds experimental Cursor, OpenCode and GitHub Copilot adapters

## Retrieval answer

Google’s EGM v0.1.1 release adds experimental adapters for Cursor, OpenCode V1 and GitHub Copilot to its agent-skills plugin, alongside changes to its reviewer and packaging. For teams evaluating spec-first coding-agent workflows, the release broadens the set of harnesses they can try, while leaving native end-to-end verification of these exact release ZIPs open.

## Summary
Google’s EGM v0.1.1 release adds experimental adapters for Cursor, OpenCode V1 and GitHub Copilot to its agent-skills plugin, alongside changes to its reviewer and packaging. For teams evaluating spec-first coding-agent workflows, the release broadens the set of harnesses they can try, while leaving native end-to-end verification of these exact release ZIPs open.

## What happened
The GitHub release page says Google released Elephant-Goldfish Model (EGM) v0.1.1 on November 6. It describes the version as updating the plugin listing and packaging the current Claude and OpenAI runtimes. The release notes also say the listing copy was clarified, three OpenAI plugin starter prompts were added, and publisher policy destinations were separated. The listing update does not change existing skill names, descriptions or per-skill prompt files, and no migration is required for that update.

The release adds a TRIZ inventive catalyst reviewer and improves review-context handling and severity preservation. It also introduces experimental adapters for Cursor, OpenCode V1 and GitHub Copilot. The release notes point to separate installation and support guidance for those adapters; the release itself does not describe them as generally available or provide a single shared support guarantee. The adapters extend the environments in which users may try the project, but the page does not say that every workflow or feature behaves identically across them.

EGM is presented as a plugin rather than a new coding model. Its release notes concern runtimes, prompts, reviewers, adapters and the plugin listing. The project’s approach, described in New Runtime’s earlier coverage, uses an agent to draft a software specification and separate reviewer subagents to examine it before code is written, with user approval of the specification. The v0.1.1 release notes specifically mention a TRIZ reviewer and review-context improvements; they do not claim a new model or quantify the quality or speed of generated software.

For release integrity, the page says ZIP checksums and GitHub Actions attestations were verified against workflow-built artifacts from commit `dea7761de06ce5b51c177ebb9bba0469f24af5a4`. It explicitly leaves native end-to-end verification of these exact release ZIPs open in issue #60. Marketplace rollout is tracked separately. These details matter when teams distinguish an artifact’s build provenance from confirmation that the packaged plugin works end to end in each target environment.

## What the archive adds
[New Runtime’s earlier coverage](https://newruntime.com/posts/google-open-sources-elephant-goldfish-model-egm-agent-dfd007/) on October 31 described EGM as Google’s open-source agent skills for spec-first software design and zero-context reviewer subagents. This release is a new fact on that known story: it adds experimental adapters for Cursor, OpenCode V1 and GitHub Copilot, plus reviewer and packaging changes. It does not replace the earlier account of the workflow or establish broad production readiness for the new adapters.

## Trend signal
This release modestly supports the pattern that [agent protocols become the interoperability layer](https://newruntime.com/patterns/agent-protocols-become-interoperability-layer/): an agent workflow is being made available through multiple coding-agent environments rather than only one. The evidence is limited to experimental adapters and separate installation and support guidance. The release does not establish that EGM uses a common protocol across these integrations, or that the adapters offer equivalent capabilities, so it is a signal of expanding reach rather than proof of protocol convergence.

## Connections to other events
New Runtime’s earlier coverage of [Google’s open-source EGM project](https://newruntime.com/posts/google-open-sources-elephant-goldfish-model-egm-agent-dfd007/) described its specification-and-review workflow. The v0.1.1 release connects to that same project by adding the TRIZ inventive catalyst reviewer and improving review-context handling, while also broadening the experimental adapter list. The separate coverage is relevant because it explains what is being adapted; it should not be read as evidence that the new adapters have passed end-to-end testing.

## Why it matters
A coding-agent workflow is not useful to a team merely because its ideas are sound; it also has to fit the harness developers already use. Experimental adapters lower the barrier to trying EGM’s specification-and-review approach in Cursor, OpenCode V1 or GitHub Copilot without requiring the team to treat the workflow as a new model. That can make comparative evaluation more practical: teams can examine whether a specification and review step fits their own process before deciding whether to adopt it.

The release’s reviewer changes also point to an operational concern. Review context and severity preservation affect how findings are presented and interpreted, not just whether an agent can produce a draft. Teams testing the update should pay attention to whether reviewers retain the rationale and seriousness of issues across the workflow. But the release provides no measured outcomes, and its adapters are experimental. It is therefore a reason to run a bounded evaluation, not evidence that EGM improves software quality or is ready to standardize across an organization.

## Limits and uncertainty
The release page does not report benchmark results, user adoption, defect rates, time savings or comparative performance for the new adapters. It marks the Cursor, OpenCode V1 and GitHub Copilot adapters as experimental and says their installation and support guidance is separate. Native end-to-end verification of the exact release ZIPs remains open in issue #60, and marketplace rollout is tracked separately. The release verifies checksums and workflow attestations, but that is not the same as confirming successful native operation in each target environment. It also does not quantify how the reviewer changes affect results.

## Reader takeaway
EGM v0.1.1 makes Google’s spec-first design and review workflow experimentally accessible through three more coding-agent environments. Treat that as an invitation to test fit, not a compatibility or quality guarantee: the release distinguishes artifact provenance from native end-to-end verification, which remains open for these exact ZIPs.

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

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