recon-for-sec

recon-for-sec is a skill for Claude Code, Codex from SurrealSky/hack_skills. It costs 41 tokens per session (5,326 once invoked), scanned B, original, no licence file.

A security-reconnaissance skill for mapping what belongs to a target and planning initial testing. Reconnaissance means collecting information about systems before checking them for security problems.

In plain words
What is it for?
Use it to discover assets, identify technologies, list endpoints, define scope, and choose an initial security-testing path.
Why use it?
It organizes the early investigation so you can understand the testing scope, exposed assets, technologies, and likely starting points.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to discover assets, identify technologies, list endpoints, define scope, and choose an initial security-testing path.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/surrealsky/hack_skills/recon-for-sec
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 SurrealSky/hack_skills --skill recon-for-sec
Clone the repo
git clone --depth 1 https://github.com/SurrealSky/hack_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 recon-for-sec

README.md
[![agentmods](https://agentmods.dev/badge/skills/surrealsky/hack_skills/recon-for-sec/github.svg)](https://agentmods.dev/skills/surrealsky/hack_skills/recon-for-sec)
Your own site
<a href="https://agentmods.dev/skills/surrealsky/hack_skills/recon-for-sec"><img src="https://agentmods.dev/badge/skills/surrealsky/hack_skills/recon-for-sec/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 recon-for-sec

Your own site · 80×15
<a href="https://agentmods.dev/skills/surrealsky/hack_skills/recon-for-sec"><img src="https://agentmods.dev/badge/skills/surrealsky/hack_skills/recon-for-sec.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,326 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00041 $0.05326
Opus 5 $0.00020 $0.02663
Sonnet 5 $0.00008 $0.01065
Haiku 4.5 $0.00004 $0.00533

Measured yesterday against content hash 5e1fcb011220, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

recon-for-sec scanned grade B with 2 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.

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.

Reaches for credential filesmediumPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

- 命中 `/.aws/credentials` `/.docker/config.json` 等运行时密钥 → 同上提取;命中凭证后**回流 hack**(凭证现象 → 由 hack 路由 Auth Bypass / API Security)。

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

> 本技能的工具命令来自 Linux bug-bounty playbook,**能否直接跑以 `tools/TOOLS.md` 为准**(多数已有 Windows .exe 且 ✅)。实际执行走 CLAUDE.md「模式 B」:**Python requests / curl**;工具命令可作「手法参考」,未放置(⚠️/⬜/❌)的用 curl/requests 等价替换。
skills/recon-for-sec/SKILL.md · 440 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 Changed · -1 lines 5e1fcb011220
  2. 5d ago Changed · +6 lines 02964533428b
  3. 9d ago First seen · 435 lines · 41 tokens per session scan B e611af8f1722

Subscribe to this mod's changes

recon-for-sec is a skill published in the GitHub repository SurrealSky/hack_skills (2 stars, last pushed today), with no licence file. It adds 41 tokens to every session and 5,326 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 2 findings (reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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