# heychoppaah

- **Event:** [Built with Opus 4.7: a Claude Code hackathon](https://cerebralvalley.ai/e/built-with-4-7-hackathon)
- **When:** Apr 21 at 12:00 PM – Apr 27 at 2:00 AM (EDT)
- **Where:** Online
- **Team:** [Choppaaah B](https://cerebralvalley.ai/u/Choppaaah)
- **GitHub:** https://github.com/Choppaaahh/cognitive-signature-ide
- **Demo video:** https://youtu.be/GvP8P_4Fkl8
- **Gallery:** https://cerebralvalley.ai/e/built-with-4-7-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/built-with-4-7-hackathon/hackathon/gallery/1

Cognitive Signature IDE — a Claude Code plugin that syncs Claude to your cognitive signature and keeps it aligned as you change.

Two functionalities on one pipeline: 

1. Voice signature — 7 dimensions of how you direct AI (directive style, compression, reframe patterns, trust signals, idiomatic tells, iteration cadence, texture energy). Extracted from raw user-typed directives across your Claude Code JSONL corpus.
2. Operational signature — 4 dimensions of what you've learned through usage (recurring_decision_templates / recurring_failure_patterns / recurring_tooling_invocations / vocabulary_anchors). Auto-promoted to a permanent signature when n≥2 instances observed.

Four onboarding presets (normie / power / team / enterprise) map to three deploy modes (standalone / team-shared / cloud-governed). Hands-off by default; user surfaced only on conflict.

 Ships 3 dual-function governance subagents — brutus (Opus, adversarial), qa (Haiku, schema/compile/dead-code), historian (Sonnet, drift tracking) — across two substrates (in-session Claude Code plugin + API-level Managed Agents). Same architecture, different persistence.

 Measurement: 100% auto-scorer accuracy on N=10 blind tests (Claude-as-judge) = +66.7pp over chance, 5-persona simulation grid showing same pipeline produces visibly-distinctsignatures, 5 real governance catches during this build cataloged (QA caught 3 plugin-loader schema violations pre-demo; Brutus caught 3 contaminated blind-test prompts before 30 Opus calls fired; and more).

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Markdown version of https://cerebralvalley.ai/e/built-with-4-7-hackathon/hackathon/gallery/1. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt