# Causal Delta

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Ronnie Quinonez](https://cerebralvalley.ai/u/deepdropout)
- **GitHub:** https://github.com/3xC1ibR/glimmer-release-gate
- **Demo video:** https://youtu.be/0z3YrZM8zBk?is=ymAWgG6Il2UXjUPY
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3888

Before you ship a fine-tuned model, ask what it stopped doing. Glimmer Release Gate gives an adapter maintainer a concrete failing case to investigate before release, and someone choosing an adapter evidence to inspect before adoption.

In a fresh live synthetic test, a public Muse Glimmer ToolCall adapter passed 0/384 multi-call tasks against 381/384 for base. Asked for one, two, three or four calls, it returned exactly one every time across 512 cases. These were native call proposals, not executed actions. The gate returned BLOCK.

Selected tests also blocked our self-trained SFT adapter, Alexandria, Lemura and Lumen v2 under their recorded settings. Fable and Clicking had no confirmed regression on the tested routing battery. Selection used development screens; we committed to reporting either outcome for the latter two. These are bounded synthetic findings, not an ecosystem failure rate or tests of every adapter’s intended task. No successful repair or measured production incident prevention is claimed.

The gate exports an HTML report with recorded calls side by side and paired counterexamples. Saved-evidence replay needs no GPU. A release-script example stops before its simulated publish step; no upload is configured or performed.

Existing: research concept, Meta model weights and third-party adapters. Built for this event: the gate, synthetic evaluation cases, recorded measurements and evidence export.

## More from Meta Global AI Developer Hackathon

- [Brisky](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3885)
- [blackrossay](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3886)
- [Byte me](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3887)
- [AMONS](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3889)
- [umwayi](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3890)
- [ScottB](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3891)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3888. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt