web-re

web-re is a skill for Claude Code, Codex from joegoldin/agent-skills. It costs 115 tokens per session (1,089 once invoked), scanned B, original, no licence file.

A skill for examining how a web or network service communicates when its protocol or API is undocumented. It covers formats and connections such as protobuf, gRPC, HAR files, JSON APIs, WebSockets, and TLS-fingerprinted endpoints.

In plain words
What is it for?
Use it to decode protobuf data, inspect gRPC traffic, examine HAR captures, study undocumented HTTP or JSON APIs, and investigate WebSocket or TLS-based endpoints.
Why use it?
It helps turn captured requests or unfamiliar network messages into information you can inspect and understand.

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 decode protobuf data, inspect gRPC traffic, examine HAR captures, study undocumented HTTP or JSON APIs, and investigate WebSocket or TLS-based endpoints.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/joegoldin/agent-skills/web-re
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 joegoldin/agent-skills --skill web-re
Clone the repo
git clone --depth 1 https://github.com/joegoldin/agent-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 web-re

README.md
[![agentmods](https://agentmods.dev/badge/skills/joegoldin/agent-skills/web-re/github.svg)](https://agentmods.dev/skills/joegoldin/agent-skills/web-re)
Your own site
<a href="https://agentmods.dev/skills/joegoldin/agent-skills/web-re"><img src="https://agentmods.dev/badge/skills/joegoldin/agent-skills/web-re/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 web-re

Your own site · 80×15
<a href="https://agentmods.dev/skills/joegoldin/agent-skills/web-re"><img src="https://agentmods.dev/badge/skills/joegoldin/agent-skills/web-re.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 115 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,089 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 $0.00115 $0.01089
Opus 5 $0.00057 $0.00544
Sonnet 5 $0.00023 $0.00218
Haiku 4.5 $0.00012 $0.00109

Measured 9d ago against content hash 940c32842e3b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

web-re 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 9d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

grpcurl -plaintext -d '{"field": "value"}' localhost:50051 my.Service/Method

Makes network callslowCapability

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

description: Use when reverse engineering a web or network protocol — protobuf or gRPC messages, a HAR capture, an undocumented HTTP or JSON API, a WebSocket stream, or a TLS-fingerprinted endpoint. Triggers on decoding
skills/web-re/SKILL.md · 121 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. 9d ago First seen · 121 lines · 115 tokens per session scan B 940c32842e3b

Subscribe to this mod's changes

web-re is a skill published in the GitHub repository joegoldin/agent-skills (2 stars, last pushed 5d ago), with no licence file. It adds 115 tokens to every session and 1,089 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, 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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