cb-upgrade

A command that upgrades the Codebrain repository to its latest public version. It updates files over the network and requires a new Claude, Codex, or Antigravity session before the new rules apply.

In plain words
What is it for?
Use it when you want to update Codebrain and receive a machine-readable success or failure result.
Why use it?
It avoids manually finding and applying the latest repository changes, while clearly reporting whether the upgrade succeeded.

Command for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/ezbuilder/code-brain/cb-upgrade
Clone the repo
git clone --depth 1 https://github.com/ezBuilder/code-brain

Made for: Claude Code.

Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 143 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00017 $0.00143
Opus 5 $0.00009 $0.00072
Sonnet 5 $0.00003 $0.00029
Haiku 4.5 $0.00002 $0.00014

Measured yesterday against content hash b90d43a72ace, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cb-upgrade 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 yesterday.

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.

.claude/commands/cb-upgrade.md · 11 lines

What it actually says

.ai/bin/ai upgrade latest --json 실행. 네트워크와 파일 갱신을 수행하는 명시적 명령이다. 성공 후 새 Claude/Codex/Antigravity 세션을 열어야 새 규칙이 적용된다.

출력 규칙:

  • ok=true: 코드브레인 업그레이드 완료 — 새 세션 필요
  • ok=false: 코드브레인 업그레이드 실패 — {error}
  • 표·박스·이모지·코드블록·추가 해설 금지.
Changes

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.

  1. yesterday First seen · 11 lines · 17 tokens per session scan A b90d43a72ace

Subscribe to this mod's changes

cb-upgrade is a command published in the GitHub repository ezBuilder/code-brain (11 stars, last pushed 2d ago), licensed Apache-2.0. It adds 17 tokens to every session and 143 once invoked, about $0.0001 per session on Opus 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.