Agent skill

Pp Hackernews

by mvanhorn in mvanhorn/printing-press-library

Hacker News from your terminal — with a local SQLite store, snapshot history, and agent-native output no other HN tool has.

Apache-2.0Auto-check: notesDatabases

Install Pp Hackernews

skills CLI
$ npx skills add mvanhorn/printing-press-library --skill pp-hackernews -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mvanhorn/printing-press-library pp-hackernews --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mvanhorn/printing-press-library.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cli-skills/pp-hackernews .claude/skills/pp-hackernews && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
pp-hackernews
GitHub stars
2.1k
Token cost
~4k tokens
SKILL.md length
1,722 words
Files
1
Skills in repo
505
Repo updated
First seen
Licence
Apache-2.0

At a glance

Hacker News from your terminal — with a local SQLite store, snapshot history, and agent-native output no other HN tool has.

  • Works in 3 steps: Install via the Printing Press… → Verify: hackernews-pp-cli --version → Ensure the reported install directory is…
  • Phrases: check hacker news
  • SKILL.md covers Prerequisites: Install the CLI, When to Use This CLI, When Not to Use This CLI and Unique Capabilities, plus 12 more sections
  • Calls go, claude and npx

What it does

Pp Hackernews is an agent skill from mvanhorn/printing-press-library. Hacker News from your terminal — with a local SQLite store, snapshot history, and agent-native output no other HN tool has. Trigger phrases: check hacker news, search hn, what is hn saying about, diff the hn front page, pulse on hn, look up hn user, hn who is hiring, hn top stories, use hackernews, run hackernews.

Its SKILL.md is about 4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Databases. It works with SQLite. The repository describes itself as: Official library of CLIs generated by the CLI Printing Press. Endorsed, tested, and community-contributed. The licence is Apache-2.0.

When your agent uses it

  • Phrases: check hacker news
  • What is hn saying about
  • Diff the hn front page
  • Look up hn user

Example prompts

  • “/pp-hackernews”

Requirements

  • Node.js
  • Pre-approved tools (allowed-tools): Read, Bash

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and…
  2. Verify: hackernews-pp-cli --version
  3. Ensure the reported install directory is on $PATH for the agent/runtime that will invoke this skill.

What it can do on your machine

Read from SKILL.md and the folder at commit 0fdcc7a. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Bash

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • go
    • claude
    • npx

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Pp Hackernews loads about 4k tokens when it runs. Until then it costs about 87 tokens; SKILL.md has 1,722 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~87
When it runs · the whole SKILL.md, loaded when a task matches
~4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Read, Bash

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from mvanhorn/printing-press-library at commit 0fdcc7a, republished under its Apache-2.0 licence (© mvanhorn). 1,722 words, ~4,011 tokens.

Download SKILL.mdSave it as .claude/skills/pp-hackernews/SKILL.md (or your agent's skills folder).
name
pp-hackernews
description
Hacker News from your terminal — with a local SQLite store, snapshot history, and agent-native output no other HN tool has. Trigger phrases: `check hacker news`, `search hn`, `what is hn saying about`, `diff the hn front page`, `pulse on hn`, `look up hn user`, `hn who is hiring`, `hn top stories`, `use hackernews`, `run hackernews`.
allowed-tools
Read, Bash
author
Trevin Chow
license
Apache-2.0
argument-hint
<command> [args] | install cli|mcp
<!-- GENERATED FILE — DO NOT EDIT.
     This file is a verbatim mirror of library/media-and-entertainment/hackernews/SKILL.md,
     regenerated post-merge by tools/generate-skills/. Hand-edits here are
     silently overwritten on the next regen. Edit the library/ source instead.
     See the repository agent guide, section "Generated artifacts: registry.json, cli-skills/". -->

Hacker News — Printing Press CLI

Prerequisites: Install the CLI

This skill drives the hackernews-pp-cli binary. You must verify the CLI is installed before invoking any command from this skill. If it is missing, install it first:

  1. Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows:
    bash
    npx -y @mvanhorn/printing-press-library install hackernews --cli-only
  2. Verify: hackernews-pp-cli --version
  3. Ensure the reported install directory is on $PATH for the agent/runtime that will invoke this skill.

If the npx install fails (no Node, offline, etc.), fall back to a direct Go install (requires Go 1.26.6 or newer):

bash
go install github.com/mvanhorn/printing-press-library/library/media-and-entertainment/hackernews/cmd/hackernews-pp-cli@latest

If --version reports "command not found" after install, the runtime cannot see the binary directory on $PATH. Do not proceed with skill commands until verification succeeds.

When to Use This CLI

Reach for hackernews-pp-cli when you need to monitor or analyze HN signal programmatically: agent-driven daily diffs, topic pulses, hiring-thread aggregation, repost checks before submitting, structured thread digests for context windows. The local store makes follow-up queries cheap and offline-friendly.

When Not to Use This CLI

Do not activate this CLI for requests that require creating, updating, deleting, publishing, commenting, upvoting, inviting, ordering, sending messages, booking, purchasing, or changing remote state. This printed CLI exposes read-only commands for inspection, export, sync, and analysis.

Unique Capabilities

These capabilities aren't available in any other tool for this API.

Local snapshots that compound
  • since — See exactly what climbed, fell, appeared, or dropped off the front page since your last sync.

    Reach for this when an agent wakes up daily and needs to know what shifted on HN since yesterday — without re-fetching 500 items every poll.

    bash
    hackernews-pp-cli since --json
  • controversial — Stories ranked by the highest comment-to-point ratio over a recent window — the discussions everyone is arguing about.

    Reach for this when you want stories with high engagement-to-approval — heated debate signal — instead of just popularity.

    bash
    hackernews-pp-cli controversial --window 7d --json
  • velocity — Show a story's rank trajectory over time from local snapshots — climb, plateau, or fall.

    Reach for this when an agent asks 'is this story still gaining traction or already cresting' — only meaningful answer comes from snapshots.

    bash
    hackernews-pp-cli velocity 47998158 --json
  • sync — Pull top/new/best/show/ask/job lists and recently-changed items into local SQLite for offline use and snapshot history.

    Run this once per day (or per hour for agents) — it is the foundation that turns since/velocity/controversial/users-stats from impossible into one SQL query.

    bash
    hackernews-pp-cli sync --resources updates --agent
Algolia leverage
  • pulse — See per-day mentions, average score, and comment volume for any topic over the last N days.

    Reach for this when the question is 'is this topic heating up or cooling down' rather than 'what's the top story right now'.

    bash
    hackernews-pp-cli pulse rust --days 7 --agent
  • repost — Has this URL been posted before? Lists every prior submission, with score, comments, and date.

    Reach for this before submitting a Show HN — duplicate URLs flame out instantly; you want to know how a prior post did first.

    bash
    hackernews-pp-cli repost https://example.com/article
  • search local — Offline full-text search over every story and comment you have ever synced — corpus grows with use.

    Reach for this when investigating long-tail topics or replaying last quarter's research — Algolia might rank it down or drop it; your local corpus will not.

    bash
    hackernews-pp-cli search local "vector database" --limit 20 --json
Hiring-thread mining
  • hiring stats — Aggregate the last N monthly Who-is-Hiring threads: top languages, remote ratio, top companies, location distribution.

    Reach for this when you need quarterly or seasonal hiring trends — language popularity, remote-share shifts, location density — not just this month's listings.

    bash
    hackernews-pp-cli hiring stats --months 3 --agent
  • hiring companies — Companies that posted in M of the last N hiring threads, with first-seen, last-seen, and months-posted count.

    Reach for this when sourcing or trend-tracking — which companies are persistent hirers vs one-off posters — without scraping HNHIRING.com.

    bash
    hackernews-pp-cli hiring companies --months 6 --min-posts 3 --agent
Cross-entity local queries
  • users stats — Median and p90 score across a user's submissions, plus traction buckets and hour-of-day score distribution.

    Reach for this before posting your own work to learn your traction patterns, or when sizing up a poster's history before engaging.

    bash
    hackernews-pp-cli users stats pg --json

Command Reference

items — Fetch any HN item (story, comment, job, poll) by ID

  • hackernews-pp-cli items <itemId> — Get details for a specific story, comment, job, or poll

maxitem — Current maximum item ID

  • hackernews-pp-cli maxitem — Returns the largest item ID currently assigned by Hacker News

stories — Browse top, new, and best Hacker News stories

  • hackernews-pp-cli stories ask — Get the latest Ask HN posts
  • hackernews-pp-cli stories best — Get the highest-voted stories on Hacker News
  • hackernews-pp-cli stories job — Get the latest Hacker News job postings
  • hackernews-pp-cli stories new — Get the newest stories on Hacker News
  • hackernews-pp-cli stories show — Get the latest Show HN posts
  • hackernews-pp-cli stories top — Get the current top stories on Hacker News

updates — Recently changed items and profiles

  • hackernews-pp-cli updates — Items and user profiles that have changed recently

users — Look up Hacker News user profiles

  • hackernews-pp-cli users <userId> — Get a user's profile including karma and submission history

Hand-written commands

  • hackernews-pp-cli sync — Pull top/new/best/show/ask/job lists and recent items into the local SQLite store
  • hackernews-pp-cli search <query> — Full-text search Hacker News stories and comments via Algolia (use 'search local' for offline FTS)
  • hackernews-pp-cli hiring — Mine 'Ask HN: Who is hiring' threads (filter, stats, companies)
  • hackernews-pp-cli freelance — Mine 'Ask HN: Freelancer? Seeking freelancer?' threads (filter)
  • hackernews-pp-cli since — Show what changed on the front page since the last sync (added, removed, moved stories)
  • hackernews-pp-cli pulse <topic> — Show what HN is saying about a topic — per-day mentions, score, and comment volume
  • hackernews-pp-cli controversial — Find stories with the highest comment-to-point ratio (polarizing discussions)
  • hackernews-pp-cli repost <url> — Has this URL been posted on HN? Lists prior submissions with scores and dates
  • hackernews-pp-cli velocity <id> — Show a story's rank trajectory across local snapshots
  • hackernews-pp-cli doctor — Run a self-diagnostic: API reachability, store writability, config sanity

Freshness Contract

This printed CLI owns bounded freshness only for registered store-backed read command paths. In --data-source auto mode, those paths check sync_state and may run a bounded refresh before reading local data. --data-source local never refreshes. --data-source live reads the API and does not mutate the local store. Set HACKERNEWS_NO_AUTO_REFRESH=1 to skip the freshness hook without changing source selection.

Covered paths:

  • hackernews-pp-cli stories
  • hackernews-pp-cli stories ask
  • hackernews-pp-cli stories best
  • hackernews-pp-cli stories job
  • hackernews-pp-cli stories new
  • hackernews-pp-cli stories show
  • hackernews-pp-cli stories top
  • hackernews-pp-cli updates

When JSON output uses the generated provenance envelope, freshness metadata appears at meta.freshness. Treat it as current-cache freshness for the covered command path, not a guarantee of complete historical backfill or API-specific enrichment.

Show full SKILL.md (720 more words)Show less
Finding the right command

When you know what you want to do but not which command does it, ask the CLI directly:

bash
hackernews-pp-cli which "<capability in your own words>"

which resolves a natural-language capability query to the best matching command from this CLI's curated feature index. Exit code 0 means at least one match; exit code 2 means no confident match — fall back to --help or use a narrower query.

Recipes

Daily front-page diff for an agent
bash
hackernews-pp-cli sync && hackernews-pp-cli since --json --select added,removed,moved

Sync, then diff. The --select narrows the payload to just the change deltas — agents process kilobytes instead of megabytes.

Topic monitoring with selected fields
bash
hackernews-pp-cli pulse openai --days 7 --agent --select buckets.day,buckets.hits,buckets.avg_score

Per-day breakdown of mentions, average score, and comment volume — using --select to pull only the trend axes from the deeply-nested response.

Pre-submit dupe check
bash
hackernews-pp-cli repost https://example.com/article --json

Lists every prior submission of that URL with score, comments, and date — answers the 'has this been posted' question in one round-trip.

Filter Who's Hiring for remote Go roles
bash
hackernews-pp-cli hiring filter "(remote|REMOTE).*\\bGo\\b" --json

Regex against the latest monthly thread. The double-escaped \b is a real regex word boundary; --json gives you structured rows instead of one big match dump.

Quarterly hiring trend
bash
hackernews-pp-cli hiring companies --months 6 --min-posts 3 --agent

Companies posting in 3+ of the last 6 monthly threads — first-seen, last-seen, total months. Cross-month queries you cannot do without a local store.

Auth Setup

No authentication required.

Run hackernews-pp-cli doctor to verify setup.

Agent Mode

Add --agent to any command. Expands to: --json --compact --no-input --no-color --yes.

  • Pipeable — JSON on stdout, errors on stderr

  • Filterable — --select keeps a subset of fields. Dotted paths descend into nested structures; arrays traverse element-wise. Critical for keeping context small on verbose APIs:

    bash
    hackernews-pp-cli items 47998158 --agent --select id,name,status
  • Previewable — --dry-run shows the request without sending

  • Offline-friendly — sync/search commands can use the local SQLite store when available

  • Non-interactive — never prompts, every input is a flag

  • Read-only — do not use this CLI for create, update, delete, publish, comment, upvote, invite, order, send, or other mutating requests

Response envelope

Commands that read from the local store or the API wrap output in a provenance envelope:

json
{
  "meta": {"source": "live" | "local", "synced_at": "...", "reason": "..."},
  "results": <data>
}

Parse .results for data and .meta.source to know whether it's live or local. A human-readable N results (live) summary is printed to stderr only when stdout is a terminal — piped/agent consumers get pure JSON on stdout.

Agent Feedback

When you (or the agent) notice something off about this CLI, record it:

hackernews-pp-cli feedback "the --since flag is inclusive but docs say exclusive"
hackernews-pp-cli feedback --stdin < notes.txt
hackernews-pp-cli feedback list --json --limit 10

Entries are stored locally at ~/.hackernews-pp-cli/feedback.jsonl. They are never POSTed unless HACKERNEWS_FEEDBACK_ENDPOINT is set AND either --send is passed or HACKERNEWS_FEEDBACK_AUTO_SEND=true. Default behavior is local-only.

Write what surprised you, not a bug report. Short, specific, one line: that is the part that compounds.

Output Delivery

Every command accepts --deliver <sink>. The output goes to the named sink in addition to (or instead of) stdout, so agents can route command results without hand-piping. Three sinks are supported:

SinkEffect
stdoutDefault; write to stdout only
file:<path>Atomically write output to <path> (tmp + rename)
webhook:<url>POST the output body to the URL (application/json or application/x-ndjson when --compact)

Unknown schemes are refused with a structured error naming the supported set. Webhook failures return non-zero and log the URL + HTTP status on stderr.

Named Profiles

A profile is a saved set of flag values, reused across invocations. Use it when a scheduled agent calls the same command every run with the same configuration - HeyGen's "Beacon" pattern.

hackernews-pp-cli profile save briefing --json
hackernews-pp-cli --profile briefing items 47998158
hackernews-pp-cli profile list --json
hackernews-pp-cli profile show briefing
hackernews-pp-cli profile delete briefing --yes

Explicit flags always win over profile values; profile values win over defaults. agent-context lists all available profiles under available_profiles so introspecting agents discover them at runtime.

Exit Codes

CodeMeaning
0Success
2Usage error (wrong arguments)
3Resource not found
5API error (upstream issue)
7Rate limited (wait and retry)
10Config error

Argument Parsing

Parse $ARGUMENTS:

  1. Empty, help, or --help → show hackernews-pp-cli --help output
  2. Starts with install → ends with mcp → MCP installation; otherwise → see Prerequisites above
  3. Anything else → Direct Use (execute as CLI command with --agent)

MCP Server Installation

  1. Install the MCP server:
    bash
    go install github.com/mvanhorn/printing-press-library/library/media-and-entertainment/hackernews/cmd/hackernews-pp-mcp@latest
  2. Register with Claude Code:
    bash
    claude mcp add hackernews-pp-mcp -- hackernews-pp-mcp
  3. Verify: claude mcp list

Direct Use

  1. Check if installed: which hackernews-pp-cli If not found, offer to install (see Prerequisites at the top of this skill).
  2. Match the user query to the best command from the Unique Capabilities and Command Reference above.
  3. Execute with the --agent flag:
    bash
    hackernews-pp-cli <command> [subcommand] [args] --agent
  4. If ambiguous, drill into subcommand help: hackernews-pp-cli <command> --help.

© mvanhorn, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in cli-skills/pp-hackernews of mvanhorn/printing-press-library.

Open the folder on GitHubat commit 0fdcc7a

Compare with similar skills

Pp Hackernews next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

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Analyze Nsys Profilemlc-ai/pith-train355—~1.9kAutomated safety check: PassApache-2.0
Reactive Sqlite UIfastrepl/anarlog9.5k—~699Automated safety check: PassMIT
Composer Forensicsdxos/dxos525—~3.1kAutomated safety check: PassCustom licence
Sqlite Schema Designfastrepl/anarlog9.5k—~1.9kAutomated safety check: PassMIT

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Works with

Categories

Questions about Pp Hackernews

What does Pp Hackernews do?

Hacker News from your terminal — with a local SQLite store, snapshot history, and agent-native output no other HN tool has. Pp Hackernews is an agent skill from mvanhorn/printing-press-library. Hacker News from your terminal — with a local SQLite store, snapshot history, and agent-native output no other HN tool has.

When should I use Pp Hackernews?

Pp Hackernews fits situations like: phrases: check hacker news; what is hn saying about; diff the hn front page; look up hn user.

How do I install Pp Hackernews in Claude Code?

Run `npx skills add mvanhorn/printing-press-library --skill pp-hackernews -a claude-code`. Or copy the skill folder (cli-skills/pp-hackernews in mvanhorn/printing-press-library) into .claude/skills/pp-hackernews in your project. Claude Code loads it when a task matches its description.

How do I install Pp Hackernews in Codex?

Run `npx skills add mvanhorn/printing-press-library --skill pp-hackernews -a codex`. Or copy the skill folder (cli-skills/pp-hackernews in mvanhorn/printing-press-library) into .agents/skills/pp-hackernews in your project. Codex loads it when a task matches its description.

Can I use Pp Hackernews in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mvanhorn/printing-press-library --skill pp-hackernews -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pp-hackernews, .gemini/skills/pp-hackernews, .github/skills/pp-hackernews and .opencode/skills/pp-hackernews in your project.

What does Pp Hackernews need to run?

Going by SKILL.md and its folder, Pp Hackernews needs the command-line tools its instructions call (go, claude and npx). Our summary lists: Node.js. Its frontmatter pre-approves these tools: Read, Bash.

Does Pp Hackernews access the network?

SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Pp Hackernews safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Pp Hackernews use?

Pp Hackernews is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Pp Hackernews use?

About 4k tokens (SKILL.md is roughly 16k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Pp Hackernews?

Skills that share tags, products or a category with Pp Hackernews: Iptvnator Sqlite DB Worker (4gray/iptvnator, 7.3k stars), Analyze Nsys Profile (mlc-ai/pith-train, 355 stars), Reactive Sqlite UI (fastrepl/anarlog, 9.5k stars) and Composer Forensics (dxos/dxos, 525 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Pp Hackernews?

mvanhorn (a GitHub user) maintains it in mvanhorn/printing-press-library, which has 2,053 GitHub stars. The repository holds 505 skills in this directory. The repository was last updated on October 7, 2026.

Source: mvanhorn/printing-press-library on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.