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.
npx agentmods add commands/ezbuilder/code-brain/kit-researchgit clone --depth 1 https://github.com/ezBuilder/code-brainWhat 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 | $0.00000 | $0.00149 |
| Opus 5 | $0.00000 | $0.00075 |
| Sonnet 5 | $0.00000 | $0.00030 |
| Haiku 4.5 | $0.00000 | $0.00015 |
Grade A, and why
kit-research 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.
What it actually says
Research Claude Code and Codex CLI changes before modifying this kit.
Use official sources first:
- Claude Code settings: https://code.claude.com/docs/en/settings
- Claude Code hooks: https://code.claude.com/docs/en/hooks
- Claude Code commands: https://code.claude.com/docs/en/commands
- Claude Code subagents: https://code.claude.com/docs/en/sub-agents
- Claude Code MCP: https://code.claude.com/docs/en/mcp
- Codex CLI: https://github.com/openai/codex
After research, score each candidate as adopt, defer, or reject. Implement only adopted candidates that improve install-once usability, safety, or autonomous verification.
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.
- yesterday First seen · 13 lines · 0 tokens per session scan A d2b4bc8784a7
kit-research is a command published in the GitHub repository ezBuilder/code-brain (11 stars, last pushed 2d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 149 tokens. 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
release
Release a new version: bump version, update changelog, tag, push, and create a GitHub release.
benchmark
Run a TAU-bench evaluation end-to-end and present results.
checkout-branch
Switch to an existing branch by checking out its worktree, or creating one if needed.
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.
create-branch
Create a new git branch with an associated worktree following the project naming convention.
create-pr
Create a pull request for the current branch against main.