observer-ward

observer-ward is a skill for Claude Code, Codex from Asaiuta/reverse-workbench-skill. It costs 87 tokens per session (581 once invoked), scanned A, original, MIT.

A tool and workflow for identifying the software, services, versions, and TLS details behind HTTP targets. It uses fingerprints as clues that should be checked against actual responses or certificates.

In plain words
What is it for?
Use it for authorised web-application reconnaissance, technology-stack identification, version checking, and saving request, response, probe, or certificate evidence.
Why use it?
It gives you an organised first view of an unfamiliar web service without treating an automated match as proof.

Skill for Claude CodeCodex

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

Good fit Use it for authorised web-application reconnaissance, technology-stack identification, version checking, and saving request, response, probe, or certificate evidence.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/asaiuta/reverse-workbench-skill/observer-ward
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 Asaiuta/reverse-workbench-skill --skill observer-ward
Clone the repo
git clone --depth 1 https://github.com/Asaiuta/reverse-workbench-skill

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 observer-ward

README.md
[![agentmods](https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/observer-ward/github.svg)](https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/observer-ward)
Your own site
<a href="https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/observer-ward"><img src="https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/observer-ward/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 observer-ward

Your own site · 80×15
<a href="https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/observer-ward"><img src="https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/observer-ward.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 581 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 $0.00087 $0.00581
Opus 5 $0.00044 $0.00291
Sonnet 5 $0.00017 $0.00116
Haiku 4.5 $0.00009 $0.00058

Measured 5d ago against content hash bf64c02d7883, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

observer-ward 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 5d 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/pentest-tools/observer-ward/SKILL.md · 43 lines

What it actually says

ObserverWard 服务指纹识别

ObserverWard 的匹配结果用于决定下一步验证方向,不是漏洞存在或版本确认的充分证据。重要结论应与响应头、页面内容、TLS 证书、浏览器观测或其他工具交叉验证。

运行前

  1. 读取 ../../tool-index.md 确认 observer_ward 的实际路径与可用状态;不要猜路径。
  2. 先执行本机帮助,以已安装版本的参数为准:
observer_ward --help
  1. 单个目标使用 -t/--target;目标清单使用 -l/--list 或 stdin。大清单必须写入任务输出目录。

执行原则

  • 优先 JSON 格式,便于后续筛选和证据归档。
  • 管道输出时启用静默模式,避免进度消息混入结构化结果。
  • 只在需要原始请求/响应时使用 --ir,只在需要证书证据时使用 --ic;两者都会显著放大输出。
  • 仅在排障或证据收集时启用 debug。
  • 不启动 update、plugin、daemon、MITM、webhook、API server、MCP 或 Redis/asynq 模式,除非用户明确要求该工作流。

协作路径

DNS / 资产输入 → httpx 存活与响应初筛 → ObserverWard 指纹
  → 浏览器或原始响应交叉验证 → 后续专项分析
  • HTTP 存活、标题、重定向、TLS 与轻量技术栈初筛 → pentest-tools 的 httpx 参考。
  • Cookie、页面流程、控制台或 CDP 网络证据 → browser-automation/
  • 已确认的组件、接口或认证逻辑 → 根据任务进入 api-security/js-reverse/pentest-tools/

输出要求

记录目标、查询时间、实际命令、结果文件、匹配产品与版本、关键响应/证书/probe 证据、交叉验证状态与未确认项。

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. 5d ago First seen · 43 lines · 87 tokens per session scan A bf64c02d7883

Subscribe to this mod's changes

observer-ward is a skill published in the GitHub repository Asaiuta/reverse-workbench-skill (2 stars, last pushed 25d ago), licensed MIT. It adds 87 tokens to every session and 581 once invoked, about $0.0004 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.