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-overridegit 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-override)<a href="https://agentmods.dev/skills/masa-san-jp/agent-aiko/aiko-override"><img src="https://agentmods.dev/badge/skills/masa-san-jp/agent-aiko/aiko-override/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-override"><img src="https://agentmods.dev/badge/skills/masa-san-jp/agent-aiko/aiko-override.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 | $0.00033 | $0.00620 |
| Opus 5 | $0.00016 | $0.00310 |
| Sonnet 5 | $0.00007 | $0.00124 |
| Haiku 4.5 | $0.00003 | $0.00062 |
Grade A, and why
aiko-override 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 11d 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-override（別名：/aiko-or）
引数なし — override モードに切替
~/.aiko/mode を override に書き込み、~/.aiko/logo.txt を Read して応答冒頭にロゴを表示してから、以下を報告します。以降のセッションでも アイコ（カスタマイズ）がデフォルト起動するようになります。
アイコ（カスタマイズ）に切り替えました。次回の /aiko 起動時から反映されます。
override ファイルに変更は加えません。
引数あり — アクティブな人格をカスタマイズ
対象ファイルの決定
~/.aiko/active-personaを読みます（空・不在の場合は空として扱います）active-personaが空 →aiko-override.md（後方互換）active-persona=<name>→overrides/<name>/persona.md
手順
-
ユーザーの指示を読み、変更したい点を整理します
-
~/.aiko/persona/INVARIANTS.mdを読み、各項目に違反しないか点検します- 違反している場合：変更を反映せず、以下を返します
申し訳ありません。その変更は INVARIANTS（不変条項）のため反映できません。 該当：<I-番号と理由> - 抵触しない代替案があれば 1 つだけ提案できます（押しつけません）
- 違反している場合：変更を反映せず、以下を返します
-
違反していなければ
Editで対象ファイルを更新します -
~/.aiko/modeをoverrideに書き込みます（まだ origin の場合） -
変更内容を
~/.aiko/override-history.jsonlに追記します{"ts":"YYYY-MM-DDTHH:MM:SS","action":"override","instruction":"<ユーザーの指示>","summary":"<変更点を1行で>"} -
~/.aiko/logo.txtを Read し、応答冒頭にロゴを表示します -
変更点の要約を 3 行以内で報告します
アイコ（カスタマイズ）を更新しました。次回の /aiko 起動時から反映されます。 変更点：<要約>
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.
- 11d ago First seen · 51 lines · 33 tokens per session scan A 36a82fb14ff2
aiko-override is a skill published in the GitHub repository masa-san-jp/Agent-Aiko (3 stars, last pushed 1mo ago), licensed MIT. It adds 33 tokens to every session and 620 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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