gantt-chart-builder

gantt-chart-builder is a skill for Claude Code, Codex from serejaris/kimi-skills. It costs 111 tokens per session (1,824 once invoked), scanned A, original, MIT.

A tool that creates interactive HTML Gantt charts from tasks and dependencies. It includes Critical Path Method (CPM) analysis, which identifies the task sequence that controls the project's shortest schedule.

In plain words
What is it for?
Use it to build project timelines, visualize dependencies, analyze the critical path, and calculate how long tasks can be delayed.
Why use it?
It helps reveal task order, delays, dependencies, and tasks with spare time in a project plan.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to build project timelines, visualize dependencies, analyze the critical path, and calculate how long tasks can be delayed.

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Install with agentmods
npx agentmods add skills/serejaris/kimi-skills/gantt-chart-builder
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 serejaris/kimi-skills --skill gantt-chart-builder
Clone the repo
git clone --depth 1 https://github.com/serejaris/kimi-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 gantt-chart-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/serejaris/kimi-skills/gantt-chart-builder/github.svg)](https://agentmods.dev/skills/serejaris/kimi-skills/gantt-chart-builder)
Your own site
<a href="https://agentmods.dev/skills/serejaris/kimi-skills/gantt-chart-builder"><img src="https://agentmods.dev/badge/skills/serejaris/kimi-skills/gantt-chart-builder/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 gantt-chart-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/serejaris/kimi-skills/gantt-chart-builder"><img src="https://agentmods.dev/badge/skills/serejaris/kimi-skills/gantt-chart-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 111 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,824 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 $0.00111 $0.01824
Opus 5 $0.00056 $0.00912
Sonnet 5 $0.00022 $0.00365
Haiku 4.5 $0.00011 $0.00182

Measured 9d ago against content hash 59ce50b5807b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

gantt-chart-builder 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/gantt_generator.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/gantt-chart-builder/SKILL.md · 152 lines

How it starts

The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.

project-timeline -- 交互式甘特图与关键路径分析

根据任务列表及其依赖关系,自动执行关键路径分析(CPM),生成可交互的 HTML 甘特图。支持缩放、关键路径筛选、悬停详情、依赖关系箭头可视化等功能。

Quick Start

最简用法——直接传入 JSON:

python3 scripts/gantt_generator.py --json '{
  "project": "新产品上线",
  "tasks": [
    {"id": "T1", "name": "需求分析", "duration": 5, "dependencies": []},
    {"id": "T2", "name": "UI 设计", "duration": 4, "dependencies": ["T1"]},
    {"id": "T3", "name": "后端开发", "duration": 8, "dependencies": ["T1"]},
    {"id": "T4", "name": "前端开发", "duration": 6, "dependencies": ["T2"]},
    {"id": "T5", "name": "联调测试", "duration": 3, "dependencies": ["T3", "T4"]},
    {"id": "T6", "name": "上线部署", "duration": 2, "dependencies": ["T5"]}
  ]
}' --output gantt.html

从文件读取并指定开始日期:

python3 scripts/gantt_generator.py --file tasks.json --start-date 2026-05-01 --output gantt.html

方法论:关键路径法(CPM)

核心概念

术语 英文 含义
最早开始 ES (Earliest Start) 任务最早可以开始的时间
最早完成 EF (Earliest Finish) 任务最早可以完成的时间(ES + 工期)
最晚开始 LS (Latest Start) 不影响项目总工期的最晚开始时间
最晚完成 LF (Latest Finish) 不影响项目总工期的最晚完成时间
总浮动 Total Float LS - ES,可延迟天数
关键路径 Critical Path 浮动时间为 0 的任务序列,决定项目最短工期

计算步骤

  1. 拓扑排序:按依赖关系对任务排序,同时检测循环依赖
  2. 前推法(Forward Pass):从起始任务开始,计算每个任务的 ES 和 EF
    • ES = max(所有前置任务的 EF)
    • EF = ES + 工期
  3. 后推法(Backward Pass):从最终任务反推,计算 LS 和 LF
    • LF = min(所有后续任务的 LS)
    • LS = LF - 工期
  4. 识别关键路径:浮动时间(LS - ES)为 0 的任务构成关键路径

输入格式

JSON 对象,包含以下字段:

{
  "project": "项目名称",
  "start_date": "2026-05-01",
  "tasks": [
    {
      "id": "T1",
      "name": "任务名称",
      "duration": 5,
      "dependencies": ["T0"]
    }
  ]
}
字段 必填 类型 说明
project string 项目标题,默认"项目甘特图"
start_date string YYYY-MM-DD 格式,可被 CLI --start-date 覆盖
tasks array 任务列表
tasks[].id string 任务唯一标识
tasks[].name string 任务名称
tasks[].duration number 工期(天),必须 > 0
tasks[].dependencies array 前置任务 ID 列表,默认 []

Read the full file on GitHub · 152 lines

Files

What ships with it

2 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 · 152 lines · 111 tokens per session scan A 59ce50b5807b

Subscribe to this mod's changes

gantt-chart-builder is a skill published in the GitHub repository serejaris/kimi-skills (6 stars, last pushed 1mo ago), licensed MIT. It adds 111 tokens to every session and 1,824 once invoked, about $0.0006 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 2026-09-03.

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