What is unofficial-HackerNews-MCP-CLI AGENTS.md?

Repository instructions for coding agents working on an unofficial Hacker News client. Hacker News is a technology-news site, and the client provides a terminal command and an MCP server to access its official API.

Use it when an agent must understand or modify this Hacker News client, its API layer, data models, command-line interface, or MCP tools.

It gives agents the project structure, shared data rules, and change guidelines they need before editing code. This helps keep the terminal interface and server interface consistent.

How Riddhimaan-Senapati/unofficial-HackerNews-MCP-CLI configures Codex

Reuse

Borrowing it

Nothing to install: this file belongs to Riddhimaan-Senapati/unofficial-HackerNews-MCP-CLI. 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/Riddhimaan-Senapati/unofficial-HackerNews-MCP-CLI/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/Riddhimaan-Senapati/unofficial-HackerNews-MCP-CLI

Made for: Codex, OpenCode.

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/instructions/riddhimaan-senapati/unofficial-hackernews-mcp-cli/agents-md/github.svg)](https://agentmods.dev/instructions/riddhimaan-senapati/unofficial-hackernews-mcp-cli/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/riddhimaan-senapati/unofficial-hackernews-mcp-cli/agents-md"><img src="https://agentmods.dev/badge/instructions/riddhimaan-senapati/unofficial-hackernews-mcp-cli/agents-md/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/instructions/riddhimaan-senapati/unofficial-hackernews-mcp-cli/agents-md"><img src="https://agentmods.dev/badge/instructions/riddhimaan-senapati/unofficial-hackernews-mcp-cli/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 915 This file is loaded in full into every session.

When invoked 915 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00915	$0.00915
Opus 5	$0.00458	$0.00458
Sonnet 5	$0.00183	$0.00183
Haiku 4.5	$0.00092	$0.00092

Measured 5d ago against content hash 025a1102f3dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

unofficial-HackerNews-MCP-CLI 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 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.

AGENTS.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Guidance for AI coding agents working in this repository. Follow these rules unless the task says otherwise.

What this is

A read-only client for the official HackerNews API. One shared async client backs two entry points:

hn, a Typer CLI (src/hn/cli.py) for the terminal.
hn-mcp, a FastMCP server (src/hn/server.py) that exposes the same operations as MCP tools.

The layers, in order:

src/hn/client.py owns every network call. Keep the CLI and the server thin over it, so the two interfaces never drift. It handles the bounded concurrency and the API's null sentinel for missing resources.
src/hn/models.py holds the Pydantic models. StoryCategory is the single source of truth for the six story lists (its endpoint stem, display title, and story-list cap). Add a category or a model field here, not in each interface.
src/hn/cli.py and src/hn/server.py do formatting and wire-up only.
skills/hackernews/SKILL.md is the agent-facing skill. It is the source of truth. The copies under .claude/skills/ and .agents/skills/ are local installs from the skills CLI; edit the source, not the copies. The root skills-lock.json records that install.

The tools and CLI are read-only by design. The API has no authentication and no rate limit. Timestamps are Unix epoch seconds. The title, text, and about fields contain HTML.

Commands

uv sync                          # install dependencies
uv run hn stories top            # run the CLI
uv run hn-mcp                    # run the MCP server
uv run ruff check .              # lint
uv run ruff format .             # format (`ruff format --check .` in CI)
uv run pytest                    # tests, every API call mocked with respx
uv build                         # build dist/ artifacts (gitignored)

Install the skill (regenerates the local copies and skills-lock.json):

npx skills add Riddhimaan-Senapati/unofficial-HackerNews-MCP-CLI

Change rules

Read the full file on GitHub · 86 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.

5d ago First seen · 86 lines · 915 tokens per session scan A 025a1102f3dd

Subscribe to this mod's changes

unofficial-HackerNews-MCP-CLI AGENTS.md is an instructions file published in the GitHub repository Riddhimaan-Senapati/unofficial-HackerNews-MCP-CLI (0 stars, last pushed 4d ago), licensed MIT. It adds 915 tokens to every session, about $0.0046 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 2026-09-05.

Building agents

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

unofficial-HackerNews-MCP-CLI: Instructions file for Codex