task

task is a skill for Claude Code, Codex from masa-san-jp/Agent-Aiko. It costs 150 tokens per session (1,190 once invoked), scanned A, original, MIT.

A task-list skill that stores a project's unfinished work in a tasks.json file. It responds to commands for listing, adding, updating, and closing tasks.

In plain words
What is it for?
Reviewing open or in-progress tasks, filtering them by status or priority, adding assigned tasks, and updating or closing existing ones.
Why use it?
It gives the project one agreed task list instead of scattering unfinished work across notes and documents.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/masa-san-jp/agent-aiko/task
Any agent
npx skills add masa-san-jp/Agent-Aiko --skill task
Clone the repo
git clone --depth 1 https://github.com/masa-san-jp/Agent-Aiko

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 task

README.md
[![agentmods](https://agentmods.dev/badge/skills/masa-san-jp/agent-aiko/task.svg)](https://agentmods.dev/skills/masa-san-jp/agent-aiko/task)
Your own site
<a href="https://agentmods.dev/skills/masa-san-jp/agent-aiko/task"><img src="https://agentmods.dev/badge/skills/masa-san-jp/agent-aiko/task.svg" alt="Measured on agentmods" height="20"></a>
Per session 150 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,190 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00150 $0.01190
Opus 5 $0.00075 $0.00595
Sonnet 5 $0.00030 $0.00238
Haiku 4.5 $0.00015 $0.00119

Measured 5d ago against content hash a4f3314c2771, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

task 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 5d 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.

reference/skills/task/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/task

残タスク管理スキル。プロジェクトの残タスク正本である tasks.json(配置先は自分の構成に合わせる。以下 <TASKS_JSON> と表記)を読み書きする。

詳細な運用ルールはタスクディレクトリの README.md に置く想定。

基本原則

  • <TASKS_JSON>唯一の正本。他のメモ・ドキュメント・ロール設定に別途タスク一覧を作らない
  • 読みも書きも必ずこのスキルを経由する(直接編集してもよいが、ID 規則と重複チェックを破らないこと)

サブコマンド

/task list [filters]

<TASKS_JSON> から残タスクを読み出す。

引数なしstatusopen または in_progress のタスクを priority 昇順 → created 降順で表示。

フィルタ例

  • /task list status:open — open のみ
  • /task list status:in_progress — 着手中のみ
  • /task list source:<source-name> — 特定 source
  • /task list source:<sourceA>,<sourceB> — 複数 source
  • /task list agent:owner — assignee 指定
  • /task list priority:<=2 — priority 2 以下(高優先のみ)
  • 複数フィルタは AND 結合

出力形式

T-2026W20-<source>-001 [open] (P2) [owner] タスクのタイトル
  source: <source-name>
  created: 2026-05-17
  notes: ...(1 行サマリ)

/task add

新規タスクを追記。インタラクティブに以下を確認:

  • title(必須):簡潔なタイトル
  • source(必須):既存 source から選ぶか新規作成(source 名はプロジェクトで定義する分類ラベル)
  • agent(必須):assignee(owner がデフォルト)
  • priority(任意):1-5、デフォルト 3
  • notes(任意):背景・経緯
  • review_ref(任意):関連レビュー ID または外部ドキュメントパス

ID 採番T-<ISO-week>-<source>-<NNN> を自動生成

  • ISO-week:当日の ISO 週番号(例:2026-05-17 → 2026W20)
  • NNN:同一週・同一 source の最大 NNN + 1(ゼロ埋め 3 桁)

created:当日の YYYY-MM-DD statusopen で開始

/task update <id>

既存タスクの statusnotespriorityagent を更新する。

  • notes への追記は [YYYY-MM-DD] 内容 プレフィクスで時系列を保つ(既存 notes に append)
  • statusdone に変える場合は /task close を使う(completed 日付の自動付与のため)

/task close <id>

statusdone に遷移、completed に当日日付を入れ、必要なら notes に完了経緯を追記する。

status: close-as-skipped にしたい場合は /task update <id> で明示的に指定。

実装ノート

  • <TASKS_JSON> は手書きしやすい JSON。Python の json.loadjson.dumpensure_ascii=False, indent=2)で読み書きする想定
  • 同時編集ロックは特に持たない(単一ユーザー前提。マルチユーザーなら排他制御を足す)
  • diff を見やすく保つため、フィールドの順序は schema 順(id → title → agent → priority → status → source → review_ref → created → notes → completed)

関連ファイル

  • 正本:<TASKS_JSON>(プロジェクト直下のタスク JSON)
  • ルール本体:タスクディレクトリの README.md
  • ルール目次:プロジェクトのルール索引ドキュメント(あれば)

Read the full file on GitHub · 87 lines

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. 5d ago First seen · 87 lines · 150 tokens per session scan A a4f3314c2771

Subscribe to this mod's changes

task is a skill published in the GitHub repository masa-san-jp/Agent-Aiko (3 stars, last pushed 1mo ago), licensed MIT. It adds 150 tokens to every session and 1,190 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.