agentmods.dev

node-csfd-api AGENTS.md

Repository instructions for AI coding agents working on a TypeScript scraper and API for CSFD.cz, the Czecho-Slovak Film Database. They describe the project's layers, data flow, and rules for code generation.

In plain words
What is it for?
Use them when adding or maintaining fetchers, HTML parsers, services, typed data objects, the Node.js API, or the Model Context Protocol (MCP) server, which lets AI tools call project functions.
Why use it?
They give an agent the project context it needs before changing code, reducing architectural mistakes and fragile scraping changes.

Instructions file for CodexOpenCode

60 9d ago A scan 688 tokens original MIT
View the source file bartholomej/node-csfd-api
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/bartholomej/node-csfd-api/agents-md
Clone the repo
git clone --depth 1 https://github.com/bartholomej/node-csfd-api

Made for: Codex, OpenCode.

Per session 688 This file is loaded in full into every session.
When invoked 688 The same file — it is already loaded in full.
Security scan A 0 findings. 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 $0.00688 $0.00688
Opus 5 $0.00344 $0.00344
Sonnet 5 $0.00138 $0.00138
Haiku 4.5 $0.00069 $0.00069

Measured 2d ago against content hash f528840dc211, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

node-csfd-api AGENTS.md 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 2d 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.

AGENTS.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Agent Guide for node-csfd-api

This file serves as the primary context source for AI agents (Claude, Gemini, GPT) working on this repository.

🧠 Project Identity

Project: node-csfd-api Description: A TypeScript wrapper and scraper for CSFD.cz (Czecho-Slovak Film Database). It exposes data via a Node.js API and a Model Context Protocol (MCP) server for AI consumption. Core Stack: TypeScript, Node.js, node-html-parser, Zod, Express.

🗺️ High-Level Architecture

The project is divided into layers. Do not mix concerns.

  1. Core Scraper (src/):

    • Fetchers (src/fetchers): Handles HTTP requests, User-Agents, and cookies.
    • Helpers (src/helpers): CRITICAL. Pure functions that take HTML Elements and return raw data strings/objects.
    • Services (src/services): Orchestrators. They call Fetchers, then use Helpers to parse data, and return typed DTOs.
    • DTOs (src/dto): TypeScript interfaces defining the shape of the data.

  2. MCP Server (mcp-server/):

    • The AI interfacing layer. It wraps src/services into tools executable by LLMs.
    • See .ai/MCP_ARCH.md for specific rules.

  3. App Server (server/):

    • A classic Express/Node server exposing the scraper as a REST API.

⚡ Golden Rules for Code Generation

1. Scraping & robustness

  • Never put CSS selectors directly in Service classes. Always wrap them in a Helper function in src/helpers.
  • Never assume an element exists. CSFD changes layouts. Use optional chaining ?. or try/catch inside helpers.
  • See .ai/SCRAPING.md for the parsing strategy.

2. File Structure & Imports

  • Use standard ES imports.
  • When importing local files, use the .js extension in imports where necessary for ESM compatibility (e.g., import { x } from './file.js'), but follow the existing pattern in the file you are editing.

3. Testing

  • Use vitest.
  • Prefer integration tests against live CSFD for critical paths (or use recorded mocks if available).
  • Run npm run demo to verify basic functionality quickly.

Read the full file on GitHub · 66 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. 2d ago First seen · 66 lines · 688 tokens per session scan A f528840dc211

Subscribe to this mod's changes

node-csfd-api AGENTS.md is an instructions file published in the GitHub repository bartholomej/node-csfd-api (60 stars, last pushed 9d ago), licensed MIT. It adds 688 tokens to every session, about $0.0034 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 2026-08-30.

Backend and APIsLanguagesTypeScriptcsfdcsfd-apijavascriptmovieratings
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