EGM v0.1.0 — first prerelease

[n3wth]

Elephant-Goldfish Model (EGM) helps you turn an idea into a specification, then test the design with fresh-context reviewers before implementation.
The drafting agent holds the project context. Reviewers examine the document and its references without the earlier conversation. You resolve trade-offs and approve the design.

This is EGM's first tagged prerelease. Exact release-ZIP host validation remains pending. This draft is not ready for stable-release claims.

What's included

• Explore and specify: challenge an idea with egm-brainstorm, then build a specification section by section with egm-draft.
• Review and resolve: run fresh-context reviewers with egm-review or egm-review-loop, then work through findings with egm-resolve.
• Document and maintain: create codebase documentation with egm-bootstrap and compare specifications with implementation through egm-drift-report.
• Complete runtime packages: Claude and OpenAI ZIPs include the seven skills, reviewer personas, document standards, and integration guides.

This version also includes owner-led architecture decisions and Claude agent-warning guidance.

Get started

Choose your host in the installation guide. Install the complete plugin so skills can read their personas and standards.
For example, the documented Claude Code repository installation is:

claude plugin marketplace add google/elephant-goldfish-model
claude plugin install egm@egm

Start a new session, then try:

/egm:egm-brainstorm Add webhook delivery to this project.
/egm:egm-draft
/egm:egm-review <path-to-your-design-draft>

Use /egm-… commands in Antigravity or select the corresponding skill in Codex.
See the workflow guide for details.
Repository installation follows the marketplace. To validate this release candidate, install the exact attached ZIP and record its installed identity.

Compatibility and known limits

The test record documents these earlier candidate tests, dated October 22, 2026:

Host	Recorded evidence
Antigravity CLI 1.4.5	Installation, workflow fixtures, and isolation passed. Interactive approvals, bootstrap, and synthesizer nesting remain untested.
Claude Code 2.1.308	Local plugin load, workflow fixtures, and isolation passed after a stage-order fix. The report retains shutdown and fixture limits.
Codex CLI 0.163.0	Installation, workflow fixtures, isolation, required reads, and stage order passed in two live tests.
Claude Cowork cloud	Partial workflow and isolation verification; see #105.
ChatGPT Work	Partial native-trace and artifact verification; see #106.

These results do not establish passes for the attached ZIPs. Exact-artifact installation, workflow, and isolation checks remain open in #60 and #124.

Claude Code isolation requires version 2.1.271 or later. The OpenAI archive declares local execution; earlier cloud tests do not establish cloud support for it.
Goldfish reviews require native fresh-context subagents. Stop the review if the host cannot provide them.
There is no earlier tagged release to migrate from. Public directory approval remains separate.

Downloads and verification

Use the runtime ZIP for your host from the release assets. GitHub's automatic source archives are repository snapshots.

Runtime asset	SHA-256
egm-claude-0.1.0.zip	11dece3e1ac5c20161a54a19e1cc77e5798af04e6a7abe42909b8636c5816511
egm-openai-0.1.0.zip	5f17b3942eaccc657621dfa550ef9fcaf626ad7d170085a9ef98a0e9e8afcefb

Both downloads match the official workflow artifacts byte for byte. ZIP integrity, tagged-source file contents, checksums, and signed provenance verification passed.
Verify your downloads with:

sha256sum -c SHA256SUMS
for archive in egm-claude-*.zip egm-openai-*.zip; do
  gh attestation verify "$archive" --repo google/elephant-goldfish-model \
    --signer-workflow google/elephant-goldfish-model/.github/workflows/release.yml \
    --source-ref refs/heads/main || exit 1
done

Build identity and offline test evidence

• Annotated tag: v0.1.0.
• Tagged source: b3a35956759bf7f024af2ff061b2e0b44b438e4c.
• All three versioned manifests: 0.1.0.
• Release run 40468086866: succeeded from main; checked tag ancestry; passed 135 offline tests on Ubuntu 24.04.
• Main CI run 40444991426: passed 135 offline tests on both Ubuntu 24.04 and Windows 2025.
• Verified ZIP provenance identifies the official release.yml workflow, refs/heads/main, source SHA above, and release run 40468086866.
• The annotated tag is unsigned. GitHub Actions signed the ZIP provenance.
• No live host tests ran against these exact ZIPs during release preparation. Offline tests and provenance do not establish host support.

EGM is Apache-2.0 licensed and is not an officially supported Google product.

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This discussion was created from the release EGM v0.1.0 — first prerelease.