A set of methods for studying how websites and their network interfaces work. It covers formats and connections such as protobuf, gRPC, WebSockets, HAR files, and HTTP APIs.

Useful for analysing web requests, examining API behaviour, understanding WebSocket traffic, scraping sites, and investigating TLS or other protocol details.

It helps when a website does not document how its data or requests work, so you can inspect and understand the communication between the browser and server.

How schlarpc/re-shell configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to schlarpc/re-shell. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/schlarpc/re-shell/main/.claude/skills/web/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/schlarpc/re-shell

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/schlarpc/re-shell/web/github.svg)](https://agentmods.dev/skills/schlarpc/re-shell/web)

Your own site

<a href="https://agentmods.dev/skills/schlarpc/re-shell/web"><img src="https://agentmods.dev/badge/skills/schlarpc/re-shell/web/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/schlarpc/re-shell/web"><img src="https://agentmods.dev/badge/skills/schlarpc/re-shell/web.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,358 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.

Model	Per session	Once invoked
Fable 5.1	$0.00051	$0.01358
Opus 5.5	$0.00020	$0.00543
Sonnet 5.5	$0.00010	$0.00272
Haiku 4.5	$0.00005	$0.00136

Measured 2mo ago against content hash e8d22af8fd90, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 2mo 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.

curl-impersonate, or web protocol reverse engineering.

.claude/skills/web/SKILL.md · 164 lines

The source is not reproduced here

No licence file

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.

2mo ago First seen · 164 lines · 51 tokens per session scan B e8d22af8fd90

Subscribe to this mod's changes

web-re is a skill published in the GitHub repository schlarpc/re-shell (537 stars, last pushed 2mo ago), with no licence file. It adds 51 tokens to every session and 1,358 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.

Browser automation Debugging

web-re next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
web-reschlarpc/re-shell	Skill	537	2mo ago	none	B	51	Claude Code
chrome-devtools-cliChromeDevTools/chrome-devtools-mcp	Skill	55k	yesterday	Apache-2.0	A	31	Claude Code
opencli-autofixjackwener/OpenCLI	Skill	31k	yesterday	Apache-2.0	A	61	Claude Code
chrome-performance-optimizerchromium/chromium	Skill	25k	yesterday	BSD-3-Clause	A	119	Claude Code, Codex
nullawaychromium/chromium	Skill	25k	yesterday	BSD-3-Clause	A	43	Claude Code, Codex
reenable-testchromium/chromium	Skill	25k	yesterday	BSD-3-Clause	A	85	Claude Code, Codex
bisectchromium/chromium	Skill	25k	yesterday	BSD-3-Clause	A	52	Claude Code, Codex

re-shell: Skill for Claude Code

Borrowing it

Wrote this? Show the measurements

What it costs to keep this loaded

Grade B, and why

Sends data to an external URLmediumData exfiltration

Makes network callslowCapability

The source is not reproduced here

No licence file

What this file has done since we first saw it

web-re compared with skills from other repositories