self-evolver

self-evolver is a skill for Codex from arctan303/creator.skill. It costs 30 tokens per session (724 once invoked), scanned A, original, MIT.

A rule-improvement workflow that records failures and user corrections, then creates small, tested changes when enough evidence exists or a serious incident occurs.

In plain words
What is it for?
Use it to track signals, update or merge rules, link each change to a reproducible prompt test, and record validation results and remaining risks.
Why use it?
It prevents one-off mistakes or preferences from changing rules too quickly, while ensuring repeated or serious problems are addressed and checked with regression tests.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents); mentions AGENTS.md; mentions Codex.

Good fit Use it to track signals, update or merge rules, link each change to a reproducible prompt test, and record validation results and remaining risks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/arctan303/creator.skill/self-evolver
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.

Any agent
npx skills add arctan303/creator.skill --skill self-evolver
Clone the repo
git clone --depth 1 https://github.com/arctan303/creator.skill

Made for: Codex.

Wrote 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.

agentmods badge for self-evolver

README.md
[![agentmods](https://agentmods.dev/badge/skills/arctan303/creator.skill/self-evolver/github.svg)](https://agentmods.dev/skills/arctan303/creator.skill/self-evolver)
Your own site
<a href="https://agentmods.dev/skills/arctan303/creator.skill/self-evolver"><img src="https://agentmods.dev/badge/skills/arctan303/creator.skill/self-evolver/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.

agentmods 80×15 button for self-evolver

Your own site · 80×15
<a href="https://agentmods.dev/skills/arctan303/creator.skill/self-evolver"><img src="https://agentmods.dev/badge/skills/arctan303/creator.skill/self-evolver.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 724 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00030 $0.00724
Opus 5.5 $0.00012 $0.00290
Sonnet 5.5 $0.00006 $0.00145
Haiku 4.5 $0.00003 $0.00072

Measured 7d ago against content hash 241f0ed8ccac, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

self-evolver 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 7d 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.

.agents/skills/self-evolver/SKILL.md · 58 lines

What it actually says

自进化技能 (self-evolver)

Purpose

把真实纠正、失败和流程摩擦转成可追溯、可验证的规则改进;先积累证据,再用最小补丁消除可复现缺陷。

Trigger

  • 用户明确要求沉淀教训。
  • 同类普通信号累计达到 3 次。
  • 单次出现安全、隐私、数据损坏、错误发布或越权等严重事件。
  • 测试/审查证明规则缺陷,或规则与宿主能力存在可复现冲突。
  • 安全检查点发现信号台账存在待处理项。

一次性普通外部故障不是规则信号;只有可复现的流程缺陷才采集。用户明确要求优化时不等待累计阈值。

Required context

  • EVOLUTION.md。
  • .creator/evolution/signals.md(兼容保留并核对旧 .codex/evolution/signals.md、.claude/evolution/signals.md);不存在时按模板创建。
  • 相关 AGENTS.md、Skill、阶段契约和可验证证据。
  • 能复现旧行为并验证新规则的 Prompt 行为用例。

Workflow

  1. 使用“关联 Skill + 问题类别”查重并追加证据,不重复建条目。
  2. 将普通首次信号标为“观察中”;累计 3 次或严重单次事件转为“待处理”。
  3. 先修改、合并或删除现有规则,只有结构无法覆盖时才新增。
  4. 每个应用的补丁至少绑定一个失败前可复现、修改后可验证的 Prompt 用例。
  5. 运行获准的静态契约和相关行为回归;真实任务测试被用户保留时明确待验证,超出已有授权的政策变更才请求确认。
  6. 更新台账状态、改动理由和验证证据。
  7. 补丁登记修改文件、被替代规则、新规则和关联用例,供升级时重新评估,不自动回放;源码版本开发可用 Changelog 与开发记录留痕。

Output

  • 更新后的信号台账。
  • 被修改、合并或删除的规则及理由。
  • 关联行为用例与验证结果。
  • 需要用户确认的高风险变化和残余风险。

Stop or escalate

  • 只有理论偏好、个人习惯、一次性普通外部故障或普通产品需求:不得直接进化。
  • 信号证据不足但影响主流程或多个 Skill:标为“待确认”。
  • 变更会降低审查、隐私、安全或发布标准:必须用户确认。
  • 无法构造回归用例:保留信号,不应用补丁。

References

执行前读取 stage-contract.md。

授权说明:用户已明确要求本次规则优化时按已有范围执行,不因跨多个 Skill 重复确认。用户保留真实任务测试时,只报告获准的结构/脚本检查,不擅自试跑或声称行为通过。

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 7d ago Changed · -44 tokens per session 241f0ed8ccac
  2. 1mo ago Changed · +2 lines 080e1c9af060
  3. 1mo ago First seen · 56 lines · 74 tokens per session scan A daa20ca2aaf7

Subscribe to this mod's changes

self-evolver is a skill published in the GitHub repository arctan303/creator.skill (19 stars, last pushed 7d ago), licensed MIT. It adds 30 tokens to every session and 724 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.