add_line_by_type

A utility that adds specified lines to files according to their file type, such as adding an import to a Python file. Its description says the feature is historical and needs testing.

In plain words
What is it for?
It is for batch insertion of code lines or imports into files selected by extension.
Why use it?
It can automate repetitive file edits, but its current behavior may not be reliable because it is marked as needing tests.

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/coderwanfeng/python-office/add_line_by_type
Any agent
npx skills add CoderWanFeng/python-office --skill add_line_by_type
Clone the repo
git clone --depth 1 https://github.com/CoderWanFeng/python-office

Made for: Claude Code, Codex.

Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 287 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 $0.00036 $0.00287
Opus 5 $0.00018 $0.00143
Sonnet 5 $0.00007 $0.00057
Haiku 4.5 $0.00004 $0.00029

Measured yesterday against content hash 20112909ac13, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

add_line_by_type 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 yesterday.

The scan reads SKILL.md. This mod also ships 1 executable file (__init__.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/file/add_line_by_type/SKILL.md · 49 lines

What it actually says

add_line_by_type Skill

根据类型添加行

功能描述

根据文件类型,向指定文件中添加对应的代码行。

⚠️ TODO: 该功能为历史功能,行为待测试。

所属分类

office/skills/file/add_line_by_type/

调用方式

from skills.file import add_line_by_type

add_line_by_type(
    add_line_dict={'import': 'import os'},
    file_path='./test.py',
    file_type='.py',
    output_path='add_line'
)

参数说明

参数 类型 必填 默认值 说明
add_line_dict dict - 添加行的字典
file_path str - 文件路径
file_type str '.py' 文件类型
output_path str 'add_line' 输出路径

返回值

None

原始函数

office.api.file.add_line_by_type

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. yesterday First seen · 49 lines · 36 tokens per session scan A 20112909ac13

Subscribe to this mod's changes

add_line_by_type is a skill published in the GitHub repository CoderWanFeng/python-office (1,346 stars, last pushed 12d ago), licensed Apache-2.0. It adds 36 tokens to every session and 287 once invoked, about $0.0002 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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