agent-call-sub-agent

agent-call-sub-agent is a skill for Claude Code, Codex from eaglesakura/agent-skills. It costs 131 tokens per session (1,255 once invoked), scanned A, original, MIT.

Instructions for choosing relevant skills and passing them to a delegated sub-agent. A sub-agent is a separate agent asked to handle part of a larger task.

In plain words
What is it for?
Selecting required and relevant skills before delegation, resolving their paths, and adding a clear context block to the sub-agent's prompt.
Why use it?
Sub-agents do not automatically receive the parent agent's skill instructions, so missing context can lead to skipped procedures or inconsistent work.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Selecting required and relevant skills before delegation, resolving their paths, and adding a clear context block to the sub-agent's prompt.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/eaglesakura/agent-skills/agent-call-sub-agent
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 eaglesakura/agent-skills --skill agent-call-sub-agent
Clone the repo
git clone --depth 1 https://github.com/eaglesakura/agent-skills

Made for: Claude Code, 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 agent-call-sub-agent

README.md
[![agentmods](https://agentmods.dev/badge/skills/eaglesakura/agent-skills/agent-call-sub-agent/github.svg)](https://agentmods.dev/skills/eaglesakura/agent-skills/agent-call-sub-agent)
Your own site
<a href="https://agentmods.dev/skills/eaglesakura/agent-skills/agent-call-sub-agent"><img src="https://agentmods.dev/badge/skills/eaglesakura/agent-skills/agent-call-sub-agent/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 agent-call-sub-agent

Your own site · 80×15
<a href="https://agentmods.dev/skills/eaglesakura/agent-skills/agent-call-sub-agent"><img src="https://agentmods.dev/badge/skills/eaglesakura/agent-skills/agent-call-sub-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 131 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,255 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 $0.00131 $0.01255
Opus 5 $0.00066 $0.00628
Sonnet 5 $0.00026 $0.00251
Haiku 4.5 $0.00013 $0.00126

Measured 8d ago against content hash 73a5a6960eb9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

agent-call-sub-agent 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 8d 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.

packages/agentic-workspace/.apm/skills/agent-call-sub-agent/SKILL.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent / Call Sub Agent

Sub Agent はクリーンコンテキストで起動し、親の Skills カタログを自動継承しない。 必要な手順書を渡さないと、子は関連規約を知らないまま作業する。 本 SKILL は親が起動直前に関連 SKILL を選定し、パスと description だけを prompt に載せる。 子は記載された description を見て、必要に応じて Apply(本文ロード)する。

いつ使うか

  • Task tool で Sub Agent を起動する直前
  • カスタム Agent(.cursor/agents/*.md)へ委任する直前

手順

1. 選定ソースを集める

次の2系統を必ず見る。

  1. 親の利用可能 SKILLavailable_skills 等に提示されている一覧)
  2. 起動先 Sub Agent 定義の必須 SKILL
    • 第一ソース: 本文 ## 追加コンテキストRequired: 行(SKILL の name
    • 後方互換: metadata.required_skills、本文の「必須ロード」「関連SKILL」等(現行テンプレ以前の定義向け)
    • これらに記載があるものは 必須(description 照合の結果によらず必ず含める)
    • Optional: は必須ではない。委任内容に応じて親が追加選定してよい

本 SKILL(agent-call-sub-agent)自身は子へ渡さない。親専用である。

2. 親の判断で追加選定する

必須分以外は、各 SKILL の description今回の委任内容(prompt / 作業範囲) を照合し、 子が作業を完遂するために参照すべきものを親が選ぶ。

  • 関連が薄いものは載せない(ノイズを避ける)
  • 件数の上限はない。必要なら複数すべて載せる
  • 迷ったら「子が読んで損しないか」より「読まないと規約違反・手順欠落になりそうか」で決める

3. Path を絶対パスにする

  • PathSKILL ディレクトリ の絶対パスとする(SKILL.md ファイルパスではない)
  • Sub Agent 定義の相対リンク(例: ../skills/foo/SKILL.md)は、定義ファイル位置から解決してディレクトリ絶対パスにする

4. prompt 末尾へブロックを追加する

選定結果が 1件以上 あるときだけ、Sub Agent への prompt 末尾に次を付ける。 0件ならブロック全体を省略する(「該当なし」等も書かない)。

---
# 追加コンテキスト

## SKILLサジェスト

* 記載されたDescriptionから、必要に応じてApplyすること

### {SKILL名}

* Path: {SKILLディレクトリの絶対パス}

{そのSKILLのdescription}

複数ある場合は ### {SKILL名} セクションを並べる。

記入例
---
# 追加コンテキスト

## SKILLサジェスト

* 記載されたDescriptionから、必要に応じてApplyすること

### example-domain-rules

* Path: /path/to/repo/.agents/skills/example-domain-rules

ドメイン固有の規約を定義する SKILL。
「この領域のルールに従って」…(description全文)

### example-workflow-design

* Path: /path/to/repo/.agents/skills/example-workflow-design

(description全文)

5. 子側の期待動作(親は本文を埋め込まない)

  • 親は Path と description のみ を渡す。SKILL 本文の要約・全文埋め込みはしない
  • 子は ## SKILLサジェスト の指示どおり、description を見て必要なら Path 先の SKILL.md を Apply する

ガードレール

  • Sub Agent を起動しないターンでは、本 SKILL のブロックを作らない
  • 必須(Sub Agent 定義記載)を description 照合で落とさない
  • description を勝手に言い換えない(frontmatter / 提示文言をそのまま載せる)
  • Path を相対のまま残さない

Read the full file on GitHub · 111 lines

Files

What ships with it

1 file 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. 8d ago First seen · 111 lines · 131 tokens per session scan A 73a5a6960eb9

Subscribe to this mod's changes

agent-call-sub-agent is a skill published in the GitHub repository eaglesakura/agent-skills (2 stars, last pushed 3d ago), licensed MIT. It adds 131 tokens to every session and 1,255 once invoked, about $0.0007 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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