fetchaller-mcp CLAUDE.md

fetchaller-mcp CLAUDE.md is an instructions file for coding agents from Averyy/fetchaller-mcp. It costs 2,210 tokens per session, scanned A, original, MIT.

Instructions for fetchaller-mcp, a tool server that retrieves web pages and supports Reddit and web search. They explain its architecture and how to investigate sites such as Ubiquiti and job boards.

In plain words
What is it for?
Use them when developing or maintaining URL fetching, web search, Reddit access, or site-specific content discovery for fetchaller-mcp.
Why use it?
They help developers distinguish ordinary website investigation from problems where a site actively blocks requests, so each problem is handled in the right part of the system.

Instructions file

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/averyy/fetchaller-mcp/claude-md
Clone the repo
git clone --depth 1 https://github.com/Averyy/fetchaller-mcp

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 fetchaller-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/averyy/fetchaller-mcp/claude-md.svg)](https://agentmods.dev/instructions/averyy/fetchaller-mcp/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/averyy/fetchaller-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/averyy/fetchaller-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,210 This file is loaded in full into every session.
When invoked 2,210 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.02210 $0.02210
Opus 5 $0.01105 $0.01105
Sonnet 5 $0.00442 $0.00442
Haiku 4.5 $0.00221 $0.00221

Measured 5d ago against content hash b895271143af, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fetchaller-mcp CLAUDE.md scanned grade A with 1 finding 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.

Makes network callslowCapability

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

**ALWAYS use wafer** (not `urllib`, `requests`, or `httpx`) for HTTP requests — wafer handles TLS fingerprinting and bot protection transparently.
CLAUDE.md · 147 lines

How it starts

The opening of the file, as written. The whole thing — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.

fetchaller-mcp

MCP server for fetching any URL without domain restrictions. Full Reddit support. Built-in web search.

Architecture

fetchaller owns content processing + MCP tools. wafer (~/code/wafer) owns HTTP transport + anti-detection. fetchaller NEVER does bot solving, impersonation, or cookie management — if a site blocks requests, fix it in wafer. See docs/architecture.md for full details.

Escalate to wafer only for active blocking — bot detection, a WAF challenge needing a solve, TLS rejection, clearance cookies, rate limiting. Anything that is merely finding the right request — reading JS bundles, guessing an endpoint, working out a required field, decoding a payload shape, telling one JSON blob from another — is content analysis and must be built here. Before writing anything down for wafer, ask: is this request being refused, or do I just not know its shape yet? Only the first is wafer's. src/fetchaller/discovery/ exists for the second — see docs/spa-discovery.md. This boundary was settled empirically: the discovery capability was built inside wafer, validated against seven boards, and discarded because none of them needed a challenge solved (wafer-feedback.md is the record).

Reddit

Normal Reddit URLs use New Reddit's logged-out anonymous JSON path, except the wiki page index, which first reads New Reddit's canonical SSR page tree and, when that exact tree is unavailable or its exact anonymous route returns an unstructured 403, posts WikiPageRevisionsV2 to the fixed www.reddit.com/svc/shreddit/graphql route using the same anonymous session's csrf_token cookie. Public wiki parity must pass anonymously. fetchaller has NO Reddit credential path at all -- no OAuth, no client ID/secret, no refresh or access token -- and must never gain one. Routes Reddit serves only to a logged-in account (exact moderator rosters, account-private vote activity) return an explicit account-gated error and are covered offline as fixture_only. Wafer >=0.4.6 owns verification/cookie persistence; fetchaller owns strict URL mapping, SSR/API schema validation, and compact rendering. Never add an Old Reddit fallback or copy wafer's verification parser into this repo. Explicit .json stays raw JSON and raw=true fetches canonical New Reddit HTML. Preserve Reddit's public score as a score (not an upvote count); show upvote_ratio only when returned, and never invent separate up/down vote counts.

Read the full file on GitHub · 147 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. 5d ago First seen · 147 lines · 2,210 tokens per session scan A b895271143af

Subscribe to this mod's changes

fetchaller-mcp CLAUDE.md is an instructions file published in the GitHub repository Averyy/fetchaller-mcp (14 stars, last pushed 27d ago), licensed MIT. It adds 2,210 tokens to every session, about $0.0111 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.