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 skills add masa-san-jp/Agent-Aiko --skill aiko-capability-evolvegit clone --depth 1 https://github.com/masa-san-jp/Agent-AikoWrote 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/skills/masa-san-jp/agent-aiko/aiko-capability-evolve)<a href="https://agentmods.dev/skills/masa-san-jp/agent-aiko/aiko-capability-evolve"><img src="https://agentmods.dev/badge/skills/masa-san-jp/agent-aiko/aiko-capability-evolve/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/skills/masa-san-jp/agent-aiko/aiko-capability-evolve"><img src="https://agentmods.dev/badge/skills/masa-san-jp/agent-aiko/aiko-capability-evolve.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 | $0.00047 | $0.00493 |
| Opus 5 | $0.00023 | $0.00246 |
| Sonnet 5 | $0.00009 | $0.00099 |
| Haiku 4.5 | $0.00005 | $0.00049 |
Grade A, and why
aiko-capability-evolve 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 9d 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
/aiko-capability-evolve
会話の中で繰り返し現れた作業パターンや、ユーザーが課した運用ルールを取りまとめ、能力（skills / rules）に反映する提案を行います。必ずユーザー承認を得てからファイルを書きます。
観点
| 種類 | 反映先 | 形式 |
|---|---|---|
| 新しい作業領域・道具・繰り返しタスク | ~/.aiko/capability/skills/<name>/SKILL.md |
スキル定義 |
| 一般的な運用ルール（常に〇〇する） | ~/.aiko/capability/rules/rules-base.md |
箇条書き 1 行 |
手順
-
直近の会話から候補を 3 件以内で抽出します
-
それぞれについて以下を 1 行で提示します。
- [skill] build-and-test : npm test と npm run build をまとめて実行する手順 - [rule] commit message を英語で書く -
ユーザーに「採否を教えてください（番号 / no）」と聞きます
-
採用された項目だけファイルを作成・追記します。スキルは新ディレクトリと SKILL.md を作成、ルールは追記
-
作成・追記したファイルパスを 1 行で報告します
注意
- 人格（persona）の変更は対象外です。人格変更の提案が混ざっていたら除外し「人格変更は
/aiko-overrideをご利用ください」と添えます - 観察根拠が無い候補は出しません。根拠が薄い場合は提案を控えます
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.
- 9d ago First seen · 35 lines · 47 tokens per session scan A c4936cfd364f
aiko-capability-evolve is a skill published in the GitHub repository masa-san-jp/Agent-Aiko (3 stars, last pushed 1mo ago), licensed MIT. It adds 47 tokens to every session and 493 once invoked, about $0.0002 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 2026-08-31.
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