harness-step3-session-management

harness-step3-session-management is a skill for Claude Code, Codex from simbajigege/book2skills. It costs 149 tokens per session (2,627 once invoked), scanned A, original, MIT.

A project setup for keeping an agent’s work state in files between separate chat sessions. It creates a task list, a progress summary, and a script for checking the project environment.

In plain words
What is it for?
Use it to create tasks.json, progress.md, and init.sh after the project already has AGENTS.md and a docs knowledge base. It helps agents resume tasks and verify dependencies, startup commands, and basic tests.
Why use it?
It removes the need to reconstruct unfinished work from memory whenever a new session starts. The files show what remains, what has happened, and whether the project can run.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code; mentions AGENTS.md.

Good fit Use it to create tasks.json, progress.md, and init.sh after the project already has AGENTS.md and a docs knowledge base. It helps agents resume tasks and verify dependencies, startup commands, and basic tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/simbajigege/book2skills/harness-step3-session-management
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 simbajigege/book2skills --skill harness-step3-session-management
Clone the repo
git clone --depth 1 https://github.com/simbajigege/book2skills

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 harness-step3-session-management

README.md
[![agentmods](https://agentmods.dev/badge/skills/simbajigege/book2skills/harness-step3-session-management/github.svg)](https://agentmods.dev/skills/simbajigege/book2skills/harness-step3-session-management)
Your own site
<a href="https://agentmods.dev/skills/simbajigege/book2skills/harness-step3-session-management"><img src="https://agentmods.dev/badge/skills/simbajigege/book2skills/harness-step3-session-management/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 harness-step3-session-management

Your own site · 80×15
<a href="https://agentmods.dev/skills/simbajigege/book2skills/harness-step3-session-management"><img src="https://agentmods.dev/badge/skills/simbajigege/book2skills/harness-step3-session-management.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 149 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,627 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 pass 7 Sept 2026
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 $0.00149 $0.02627
Opus 5 $0.00075 $0.01314
Sonnet 5 $0.00030 $0.00525
Haiku 4.5 $0.00015 $0.00263

Measured 12d ago against content hash cf3e2773bee2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

harness-step3-session-management 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 12d 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.

skills/harness-step3-session-management/SKILL.md · 273 lines

How it starts

The opening of the file, as written. The whole thing — 273 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Harness Step 3: 建立跨 Session 状态管理

目标

创建三个文件,让 agent 在任何新 session 开始时能在 30 秒内恢复工作状态:

  • init.sh:环境初始化脚本,验证项目可以正常启动
  • tasks.json:当前任务清单,agent 的工作指令来源
  • progress.md:人类可读的进度摘要,记录每次 session 的关键信息

核心原则:状态靠文件传递,不靠 agent 的记忆。git log 是主记录,这三个文件是辅助。


执行步骤

Step 1:扫描项目启动方式

在写 init.sh 之前,先确认项目如何启动和测试:

# 读 package.json 的 scripts(Node.js 项目)
cat package.json 2>/dev/null | grep -A 20 '"scripts"'

# 或读 Makefile(多语言项目)
cat Makefile 2>/dev/null | head -40

# 或读 pyproject.toml(Python 项目)
cat pyproject.toml 2>/dev/null | grep -A 20 '\[tool.poetry.scripts\]'

# 确认现有 AGENTS.md 里的启动命令
grep -A 5 '启动命令\|start\|dev\|run' AGENTS.md 2>/dev/null

收集:

  • 开发服务器启动命令
  • 测试命令
  • 类型检查/lint 命令(如果有)
  • 有没有需要先跑的初始化步骤(如数据库迁移)

Step 2:创建 init.sh

init.sh 的作用:每次 session 开始时运行,快速验证环境是否正常,不正常就立即修复再继续。

#!/bin/bash
# init.sh — 每次 session 开始时运行
# 验证开发环境处于可工作状态

set -e  # 任何步骤失败就停止

echo "=== 检查环境 ==="

# 1. 确认在正确目录
echo "工作目录: $(pwd)"

# 2. 安装依赖(如果 node_modules 不存在)
# [根据技术栈选择,以下是示例]
# Node.js:
if [ ! -d "node_modules" ]; then
  echo "安装依赖..."
  npm install
fi

# 3. 冒烟测试:验证项目能正常启动
# [根据项目实际情况写,目标是用最快的方式验证基本功能正常]
# 示例:跑一个最快的测试
# npm run test -- --testPathPattern=smoke 2>/dev/null || echo "警告:冒烟测试失败,请先修复"

echo "=== 环境检查完成,可以开始工作 ==="
echo "提示:运行 'git log --oneline -10' 查看最近工作历史"

写作要求

  • 根据扫描到的实际启动命令填写,不要留示例注释
  • 冒烟测试要快(< 30秒),目的是快速发现环境问题,不是跑完整测试套件
  • 如果项目有数据库,加一步检查数据库连接是否正常
  • 写完后实际运行一遍,确认脚本无报错:bash init.sh

Step 3:创建 tasks.json

结构设计

{
  "project": "[项目名]",
  "last_updated": "[今天日期,格式 YYYY-MM-DD]",
  "current_focus": "[当前最重要的一件事,一句话]",
  "tasks": [
    {
      "id": "[模块缩写]-[序号]",
      "title": "[任务标题]",
      "description": "[具体做什么,1-3句话]",
      "status": "pending | in_progress | done | blocked",
      "priority": "high | medium | low",
      "blocked_by": "[阻塞原因,仅 blocked 状态时填写]",
      "verify": "[如何验证这个任务完成了]",
      "requires_eval": false
    }
  ]
}

字段说明(每次新增任务时必须逐字段填写,不能省略):

字段 是否必填 说明
id 必填 模块缩写 + 序号,如 auth-01ui-03,简短可读
title 必填 任务标题,一句话
description 必填 具体做什么,1-3 句话
status 必填 初始值为 pending,由 agent 工作时更新
priority 必填 high / medium / low
blocked_by 仅 blocked 时填 阻塞原因
verify 必填 如何验证完成,必须是可执行的步骤(命令或操作)
requires_eval 必填 是否需要独立 Evaluator 评审,默认 false,见判断标准

Read the full file on GitHub · 273 lines

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. 12d ago First seen · 273 lines · 149 tokens per session scan A cf3e2773bee2

Subscribe to this mod's changes

harness-step3-session-management is a skill published in the GitHub repository simbajigege/book2skills (163 stars, last pushed 17d ago), licensed MIT. It adds 149 tokens to every session and 2,627 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 2026-08-30.

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