task-start

A task-status procedure that marks a development task as in progress when an agent starts working on it. It records the actual start time, checks dependencies, updates the task file, and handles the relevant Git branch.

In plain words
What is it for?
Use it when beginning a task identified by an ID such as T5, including tasks stored in sprint subdirectories. It can verify prerequisite tasks and record the start event.
Why use it?
It keeps task files, dependencies, timestamps, and branches aligned with the work actually being performed. This makes it clearer which tasks can start and where changes belong.

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/stanshy/agenthub/task-start
Any agent
npx skills add Stanshy/AgentHub --skill task-start
Clone the repo
git clone --depth 1 https://github.com/Stanshy/AgentHub

Made for: Claude Code, Codex.

Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 896 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 $0.00013 $0.00896
Opus 5 $0.00006 $0.00448
Sonnet 5 $0.00003 $0.00179
Haiku 4.5 $0.00001 $0.00090

Measured 3d ago against content hash 158e77672edb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

task-start 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 3d 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.

.knowledge/company/skill-templates/task-start/SKILL.md · 73 lines

What it actually says

任務開始

Agent 開始執行任務時呼叫,將狀態從 assigned 改為 in_progress

使用方式

/task-start <task-id>

參數

  • $0: 任務 ID(如 T5

執行步驟

  1. 找到對應的任務檔案(支援 Sprint 子目錄): 使用 Glob tool 搜尋 .tasks/**/$0-*.md,若無結果再搜尋 .tasks/**/$0.md。 取得檔案路徑後用 Read tool 讀取內容。

任務檔案可能在 .tasks/sprint-{N}/T5-xxx.md,不再只在 .tasks/ 根目錄。

  1. 取得真實時間(必要,不可跳過): !node -e "console.log(new Date().toISOString())"

    ⚠️ 禁止自行編造時間。Agent 不知道真實時間,必須透過上述指令取得。將輸出存為變數 $NOW 供後續步驟使用。

  2. 更新找到的任務檔案:

    • | 狀態 | ... | 改為 | 狀態 | in_progress |
    • | 開始時間 | ... | 改為 | 開始時間 | $NOW |
    • 開始時間 已有非 的值,不覆蓋(代表曾被 blocked 後恢復,保留首次開始時間)
    • 若找不到 | 開始時間 | 欄位,在 | 建立時間 | 行之後插入 | 開始時間 | $NOW |
  3. 依賴檢查(必要)

    • 讀取任務檔的 | 依賴 | 欄位
    • 若不為 ,使用 Glob tool 逐一找到依賴任務檔,確認其 | 狀態 | = done
    • 任一依賴狀態非 done → 輸出 block 訊息並停止:
      ⛔ $0 無法開始:依賴 {T?} 狀態為 {狀態},尚未完成
      
    • 全部 done → 繼續
  4. 事件紀錄(必要,不可跳過):在 ## 事件紀錄 區塊底部 append:

    ### $NOW — 狀態變更 → in_progress
    開始執行任務
    
  5. Git Branch 處理: 讀取任務檔的 | 並行組 | 欄位:

    並行組 = —(循序任務):

    • 確認當前 branch 為 sprint-{N}(從任務檔 Sprint 欄位取 N)
    • 若不在正確 branch,切換:git checkout sprint-{N}
    • 輸出:📌 循序任務,在 sprint-{N} 直接開發

    並行組 = A/B/C...(並行任務):

    • 從任務標題產生 slug(小寫 kebab-case,最長 30 字元)
    • 從 sprint-{N} 建立 task branch:
      git checkout sprint-{N}
      git checkout -b task/s{N}-$0-{slug}
      
    • 輸出:🌿 並行任務,已建立 branch: task/s{N}-$0-{slug}
  6. 輸出確認:

▶️ $0 狀態已更新為 in_progress
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. 3d ago First seen · 73 lines · 13 tokens per session scan A 158e77672edb

Subscribe to this mod's changes

task-start is a skill published in the GitHub repository Stanshy/AgentHub (200 stars, last pushed 4mo ago), licensed MIT. It adds 13 tokens to every session and 896 once invoked, about $0.0001 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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