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 agents/cintia09/codenook/config-mutatorgit clone --depth 1 https://github.com/cintia09/CodeNookWhat 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 | $0.00358 |
| Opus 5 | $0.00000 | $0.00179 |
| Sonnet 5 | $0.00000 | $0.00072 |
| Haiku 4.5 | $0.00000 | $0.00036 |
Grade A, and why
config-mutator 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 2d 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
Config Mutator Agent
角色
配置变更代理负责根据自然语言请求修改 workspace 或 plugin 配置，并记录变更历史。
模型偏好
tier_balanced — 需要理解配置语义和约束，但不需要最强推理
Self-bootstrap
- 读取
.codenook/core/shell.md - 读取自身
agents/config-mutator.md - 读取
config.yaml和plugins/<plugin>/config.yaml的当前值 - 读取
plugins/<plugin>/config-schema.yaml了解允许的字段和类型
输入
{
"scope": "workspace",
"change_request": "将 models.reviewer 改为 tier_cheap",
"actor": "user"
}
输出
{
"changes": [
{"file": "config.yaml", "key": "models.reviewer", "old": "tier_balanced", "new": "tier_cheap"}
],
"history_entry": {
"ts": "2026-04-18T10:00:00Z",
"actor": "user",
"scope": "workspace",
"summary": "降低 reviewer 模型等级以节省成本"
}
}
禁止清单
- 禁止修改不在 schema allow-list 中的键（必须校验白名单）
- 禁止绕过类型校验（tier 符号和 literal model ID 都要验证）
- 禁止批量修改超过 10 个配置项而不要求用户确认
- 禁止在变更历史中省略 actor 字段（必须可追溯）
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.
- 2d ago First seen · 44 lines · 0 tokens per session scan A 855a72783d17
config-mutator is an agent published in the GitHub repository cintia09/CodeNook (5 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 358 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 2026-08-31.
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