kb-strands-agentcore

kb-strands-agentcore is a skill for Claude Code from minorun365/my-claude-code-settings. It costs 72 tokens per session (530 once invoked), scanned A, original, MIT.

A Japanese-language knowledge guide for the Strands Agents framework, a toolkit for building software agents. It covers agents, tools, events, conversation history, and integration with Amazon Bedrock AgentCore.

In plain words
What is it for?
Use it when creating Strands agents, defining tools, handling events, storing conversation history, or diagnosing AgentCore integration problems.
Why use it?
It provides focused references for common implementation and troubleshooting questions without requiring all of the framework's documentation to be loaded at once. It also points to official AWS guidance where that should be checked first.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: model in frontmatter.

Good fit Use it when creating Strands agents, defining tools, handling events, storing conversation history, or diagnosing AgentCore integration problems.

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Install with agentmods
npx agentmods add skills/minorun365/my-claude-code-settings/kb-strands-agentcore
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 minorun365/my-claude-code-settings --skill kb-strands-agentcore
Clone the repo
git clone --depth 1 https://github.com/minorun365/my-claude-code-settings

Made for: Claude Code.

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 kb-strands-agentcore

README.md
[![agentmods](https://agentmods.dev/badge/skills/minorun365/my-claude-code-settings/kb-strands-agentcore/github.svg)](https://agentmods.dev/skills/minorun365/my-claude-code-settings/kb-strands-agentcore)
Your own site
<a href="https://agentmods.dev/skills/minorun365/my-claude-code-settings/kb-strands-agentcore"><img src="https://agentmods.dev/badge/skills/minorun365/my-claude-code-settings/kb-strands-agentcore/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 kb-strands-agentcore

Your own site · 80×15
<a href="https://agentmods.dev/skills/minorun365/my-claude-code-settings/kb-strands-agentcore"><img src="https://agentmods.dev/badge/skills/minorun365/my-claude-code-settings/kb-strands-agentcore.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 530 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 5
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
How audits are shown
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 $0.00072 $0.00530
Opus 5 $0.00036 $0.00265
Sonnet 5 $0.00014 $0.00106
Haiku 4.5 $0.00007 $0.00053

Measured 9d ago against content hash af3e4f011acf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

kb-strands-agentcore 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.

claude/skills/kb-strands-agentcore/SKILL.md · 30 lines

What it actually says

Strands Agents ナレッジ

この SKILL.md は入口だけに絞っている。作業内容に近い参照ファイルを1〜2個だけ読み、不要な大型ナレッジをまとめて読まない。

参照ルール

先に AWS Agent Toolkit を当たる。 この領域は aws-agents:agents-get-started / agents-build がカバーする。 このスキルは Toolkit の代わりではなく、公式どおりにやったのに動かなかったときの原因を貯めておく場所として使う。 Toolkit 側が同じ内容をカバーしたと分かった項目は、このスキルから削る(両方に置くと、更新されるのは公式側だけなのでこちらが古い情報の発生源になる)。

  1. まず依頼内容から必要な参照ファイルを選ぶ。
  2. 最新仕様や外部サービス仕様が関係する場合は、参照ファイルだけで断定せず公式ドキュメント・MCP・実コードで確認する。
  3. 複数領域にまたがる場合も、読み込む参照は最小限から始める。

参照ファイル

  • references/overview.md: 元の概要・前提、基本情報、インストール
  • references/agent-and-events.md: Agent作成、実行方法、イベントタイプ
  • references/tools.md: ツールの定義(@toolデコレータ、非同期、ToolContext等)
  • references/conversation.md: 会話履歴の管理(ConversationManager、セッション永続化)
  • references/agentcore-integration.md: Bedrock AgentCore との統合、Bedrockプロンプトキャッシュが突然停止する問題
  • references/troubleshooting.md: トラブルシューティング、関連スキル、参考リンク
Files

What ships with it

6 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. 9d ago First seen · 30 lines · 72 tokens per session scan A af3e4f011acf

Subscribe to this mod's changes

kb-strands-agentcore is a skill published in the GitHub repository minorun365/my-claude-code-settings (129 stars, last pushed 10d ago), licensed MIT. It adds 72 tokens to every session and 530 once invoked, about $0.0004 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 2026-08-30.

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