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.
npx skills add JustVugg/tools-factory --skill hacker-newsgit clone --depth 1 https://github.com/JustVugg/tools-factoryWrote 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.
[](https://agentmods.dev/skills/justvugg/tools-factory/hacker-news)<a href="https://agentmods.dev/skills/justvugg/tools-factory/hacker-news"><img src="https://agentmods.dev/badge/skills/justvugg/tools-factory/hacker-news/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.
<a href="https://agentmods.dev/skills/justvugg/tools-factory/hacker-news"><img src="https://agentmods.dev/badge/skills/justvugg/tools-factory/hacker-news.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00038 | $0.00472 |
| Opus 5 | $0.00019 | $0.00236 |
| Sonnet 5 | $0.00008 | $0.00094 |
| Haiku 4.5 | $0.00004 | $0.00047 |
Grade A, and why
hacker-news 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 9d 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.
What it actually says
hacker-news
Generated by Gutenberg. Use this skill to call the hacker-news API through the local hacker-news CLI.
When to use
- The user asks for data exposed by hacker-news (v0).
- An agent task needs structured JSON from https://hacker-news.firebaseio.com.
- You need to perform a write/destructive operation on hacker-news — always preview first, run with
--yesonly on explicit user confirmation.
How to invoke
The skill assumes the generated CLI is on PATH (or invoke via scripts/use-go.sh run ./cmd/hacker-news from the project directory).
hacker-news operations
hacker-news call getTopstoriesJson --json
hacker-news sync --json
hacker-news search "<keyword>" --json
Authentication
No authentication required.
Operations index
getTopstoriesJson(GET /v0/topstories.json) — read — GET /v0/topstories.jsongetNewstoriesJson(GET /v0/newstories.json) — read — GET /v0/newstories.jsongetBeststoriesJson(GET /v0/beststories.json) — read — GET /v0/beststories.jsongetItem8863Json(GET /v0/item/8863.json) — read — GET /v0/item/8863.jsongetMaxitemJson(GET /v0/maxitem.json) — read — GET /v0/maxitem.json
Output contract
- All commands accept
--jsonand emit machine-readable output. callreturns{ dryRun, operation, request, response }.dryRun: truemeans the call was not executed (write op without--yes).searchreturns cached records.syncpopulates the local SQLite cache.
Provenance
- Schema: gutenberg.blueprint.v1
- Generated by: gutenberg 0.3.0
- Source spec: /tmp/hacker-news.openapi.json
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.
- 9d ago First seen · 52 lines · 38 tokens per session scan A 97eb2f58e9ca
hacker-news is a skill published in the GitHub repository JustVugg/tools-factory (53 stars, last pushed 2mo ago), licensed MIT. It adds 38 tokens to every session and 472 once invoked, about $0.0002 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.
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