Borrowing it
Nothing to install: this file belongs to ezBuilder/code-brain. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/ezBuilder/code-brain/main/.claude/commands/cb-proof.mdgit clone --depth 1 https://github.com/ezBuilder/code-brainWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/commands/ezbuilder/code-brain/cb-proof)<a href="https://agentmods.dev/commands/ezbuilder/code-brain/cb-proof"><img src="https://agentmods.dev/badge/commands/ezbuilder/code-brain/cb-proof/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/ezbuilder/code-brain/cb-proof"><img src="https://agentmods.dev/badge/commands/ezbuilder/code-brain/cb-proof.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00030 | $0.00366 |
| Opus 5.5 | $0.00012 | $0.00146 |
| Sonnet 5.5 | $0.00006 | $0.00073 |
| Haiku 4.5 | $0.00003 | $0.00037 |
Grade A, and why
cb-proof scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
$ARGUMENTS가 비었으면 .ai/bin/ai context prove --json, 있으면 .ai/bin/ai context prove "$ARGUMENTS" --json 실행. exit 코드 보존.
평문만 출력한다.
코드브레인 효과 검증: {ok ? "통과" : "실패"}
- 쿼리: {query} ({query_selection})
- 효과: {effect.status}
- graph/PPR: {v2.graph_ranking_applied ? `적용 · ${v2.ranked_node_count}노드` : "정책 활성 · 적용 가능한 call edge 없음"}
- 결정론: legacy signature {legacy.signature_count}개 / v2 signature {v2.signature_count}개 / receipt {v2.receipt_count}개
- 무증가: {durability.unchanged ? "통과" : "실패"}
- 지연 p95: legacy {legacy.p95_ms}ms / v2 {v2.p95_ms}ms
- context: {v2.context_bytes}/{v2.max_context_bytes}B
expected.path가 있으면 다음 줄을 추가한다.
- 정답: legacy rank {legacy.path_rank} span {legacy.span_overlap} / v2 rank {v2.path_rank} span {v2.span_overlap}
실패한 checks는 마지막에 - 실패: {check 이름} 형식으로 모두 출력한다. JSON에 없는 값은 추측하지 않는다.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 28 lines · 30 tokens per session scan A 716c71dbe506
cb-proof is a command published in the GitHub repository ezBuilder/code-brain (11 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 30 tokens to every session and 366 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other commands, from other repositories
kayba-agent-instructions
The kayba CLI interacts with the Kayba hosted API (https://use.kayba.ai). Auth: set KAYBAAPIKEY env var or pass --api-key to every command.
promote
Move .memory/ artifacts to permanent knowledge locations.
checkpoint
Create or update .memory/ with current conversation state.
cleanup
Delete promoted content from the .memory/ directory.
index
Index or reindex this repository with jarvis so structural queries work.
ccc-reindex
Force an incremental ccc re-index of a project (use when git hooks aren't firing or after a bulk change).