SumSec-Skills CLAUDE.md

SumSec-Skills CLAUDE.md is an instructions file for Claude Code, Codex from SummerSec/SumSec-Skills. It costs 3,579 tokens per session, scanned A, original, Apache-2.0.

A project guide for SumSec-Skills, a monorepo containing reusable agent skills and their supporting files. A monorepo is one repository that holds multiple related projects or packages.

In plain words
What is it for?
Use it when adding, updating, synchronizing, committing, or reviewing skills in the SumSec-Skills repository.
Why use it?
It explains how to discover skills, synchronize sources, follow Git rules, and avoid committing generated or unrelated files.

Instructions file for Claude CodeCodex

Written for Claude Code and Codex: SessionStart hook event, but also reads ~/.codex or $CODEX_HOME. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions AGENTS.md.

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 instructions/summersec/sumsec-skills/claude-md
Clone the repo
git clone --depth 1 https://github.com/SummerSec/SumSec-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 SumSec-Skills CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/summersec/sumsec-skills/claude-md.svg)](https://agentmods.dev/instructions/summersec/sumsec-skills/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/summersec/sumsec-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/summersec/sumsec-skills/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,579 This file is loaded in full into every session.
When invoked 3,579 The same file — it is already loaded in full.
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 5.1 $0.03579 $0.03579
Opus 5 $0.01790 $0.01790
Sonnet 5 $0.00716 $0.00716
Haiku 4.5 $0.00358 $0.00358

Measured 6d ago against content hash 24b26cee52c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

SumSec-Skills CLAUDE.md 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 6d 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.

CLAUDE.md · 222 lines

How it starts

The opening of the file, as written. The whole thing — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SumSec-Skills 仓库说明(供 Agent)

本仓库为 SummerSec 个人 Agent Skills 集合,与具体业务代码仓库分离,仅存放可复用的 SKILL.md 及附属资源。仓库以多插件 monorepo 结构管理,Skill 来源包括:

  • 本仓库原创 skill。
  • submodule 同步:claude-plugins-officialcontext7taste-skill-upstreamsemantic-linter-upstream

默认 Git 规则

  • 本仓默认提交目标分支为 master
  • 除非用户明确要求创建分支、提交 PR,或指定其他分支,否则维护性改动默认应提交并推送到 master
  • 如果当前不在 master,提交前先确认是否需要切回 master;不要把“默认新建 codex/* 分支”当成本仓默认行为。
  • GitHub 远端默认分支可能仍显示为 main;提交/推送前用 git branch --show-currentgit remote show origin 确认当前目标,不要只依赖 remote HEAD。
  • 暂存时只纳入本次任务相关文件,不要使用无差别 git add .
  • 不要提交无关未跟踪目录、临时输出或同步过程残留,除非本次任务明确要求。

发现与使用

  • 所有 skill 按类别分组在插件目录下:<plugin>/skills/<skill-name>/
  • 每个 skill 的入口为 <plugin>/skills/<skill-name>/SKILL.md,顶部 YAML frontmatter 中的 description 用于判断是否与任务相关。
  • 当用户任务与某个 skill 的 description 匹配时:先读取并遵循该 SKILL.md,再按需读取其同目录下 references/scripts/assets/rules/ 等由 SKILL.md 直接链接的文件。
  • 执行 skill 时遵守其中的确认门槛、工作流顺序与输出格式要求;不要在未阅读 skill 的情况下用通用流程替代。

核心命令

# 同步 submodule skills 到插件目录
python .claude/skills/sync-skills/scripts/sync-skills.py
python .claude/skills/sync-skills/scripts/sync-skills.py --dry-run
python .claude/skills/sync-skills/scripts/sync-skills.py --clean

# 添加映射
python .claude/skills/sync-skills/scripts/sync-skills.py --add "<source>" "<target>"
python .claude/skills/sync-skills/scripts/sync-skills.py --add-plugin <plugin-name>
python .claude/skills/sync-skills/scripts/sync-skills.py --list

# npm scripts(等同上述命令)
npm run sync
npm run sync:dry
npm run sync:clean
npm run validate:dsh

验证命令

# JSON manifest 可解析
node -e "const fs=require('fs'); for (const f of ['package.json','plugin.json','.claude-plugin/plugin.json','.claude-plugin/marketplace.json','.cursor-plugin/plugin.json','.cursor-plugin/marketplace.json','.codex-plugin/plugin.json']) JSON.parse(fs.readFileSync(f,'utf8')); console.log('json ok')"

# DeepSeek Harness bundle 元数据、patch roots 与一层 Skill 目录
npm run validate:dsh

# 版本残留检查,按目标版本调整表达式
rg -n "1\.0\.(40|41)" package.json plugin.json .claude-plugin .cursor-plugin .codex-plugin .agents/plugins writing-zh/.claude-plugin dev-tools/.claude-plugin agents-dev/.claude-plugin openclaw.plugin.json opencode/plugins/sumsec-skills.mjs hermes/skills/sumsec-skills/SKILL.md

# 空白、冲突标记与 symlink 检查
git diff --check
git ls-files -s AGENTS.md CLAUDE.md

Read the full file on GitHub · 222 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. 6d ago First seen · 222 lines · 3,579 tokens per session scan A 24b26cee52c4

Subscribe to this mod's changes

SumSec-Skills CLAUDE.md is an instructions file published in the GitHub repository SummerSec/SumSec-Skills (8 stars, last pushed 21d ago), licensed Apache-2.0. It adds 3,579 tokens to every session, about $0.0179 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.

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