Elephant Goldfish Model
Elephant-Goldfish Model is an open-source plugin that helps engineers using AI coding agents write design specs and have them reviewed before any code is written.
No visits from OpenBeat in the last 30 days yet. Every click on “Visit” is counted here.
Pricing and API checked by an OpenBeat editor on Nov 9, 2026 · facts from the maker’s own site ·
Tool insights
Elephant-Goldfish Model splits spec work into two roles. A deep-context agent drafts the design, and fresh subagents with no prior context review it before coding starts.
AI coding agents that write and check their own specs tend to share the same blind spots. This tool puts a reviewer with no shared context between the draft and the code.
Engineers who use AI coding agents and want a written, reviewed design step before implementation. It is less suited to people who want a hosted product with a dashboard, or an officially supported Google tool.
What it does
Elephant-Goldfish Model is an open-source plugin for spec-driven design. The idea is a split between two kinds of agents. The "elephant" has deep context about your project and drafts the spec. The "goldfish" subagents start fresh with zero context and review it. The aim is to catch gaps that a context-heavy agent may miss. Final approval of architectural decisions stays with the human user.
The repository sits under the google GitHub organisation. The footer states that it is not an officially supported Google product.
Key features
- Brainstorm: turns a rough idea into a concept brief.
- Draft: writes a design doc under
docs/designs/. - Review: uses fresh zero-context Goldfish subagents to check the spec.
- Resolve: helps you work through the review findings.
- Bootstrap: documents an existing codebase.
- Review loop: runs configured reviewer groups.
- Drift report: compares checked-in specs with the source code.
Pricing
Elephant-Goldfish Model is open source under the Apache 2.0 license. As of November 2026, no price is listed. The maker's site does not state a free plan or paid tiers. Costs from the AI agents you run it with are not described in the facts.
API and integrations
No API or SDKs are stated on the maker's site. It lists integrations with Antigravity, Claude Code, Claude Cowork and Codex. The listed platform is CLI. Documentation is at egm.dev, and the code is on GitHub.
Good to know
- The latest release on GitHub is v0.1.1, dated 6 November 2026. The version number suggests an early project.
- The repository had about 16,400 stars at the time of listing and is not archived. The last push was on 9 November 2026.
- Architectural decisions need human approval. The tool does not replace that step.
- It is not an officially supported Google product.
- Founding date, supported models and a changelog link are not stated on the maker's site.
FAQ
What is the Elephant-Goldfish Model?
It is an open-source plugin for spec-driven design with AI coding agents. A deep-context agent drafts a design spec, and zero-context subagents review it before any coding begins.
Is Elephant-Goldfish Model free?
It is open source under the Apache 2.0 license, and no price is listed as of November 2026. The maker's site does not state a free plan or paid plans.
Which tools does Elephant-Goldfish Model work with?
The maker lists Antigravity, Claude Code, Claude Cowork and Codex as integrations. The platform listed is CLI. No API or SDKs are stated.
Is Elephant-Goldfish Model an official Google product?
No. The repository is under the google GitHub organisation, but the footer says it is not an officially supported Google product.
Does Elephant-Goldfish Model make architectural decisions for me?
No. It drafts and reviews specs, but approval of architectural decisions remains with the human user.
Releases
No tracked releases yet.
In the news
No coverage yet.