quality-judge

quality-judge is an agent for Claude Code from hoangsonww/AI-News-Briefing. It costs 60 tokens per session (822 once invoked), scanned A, original, MIT.

A review agent for AI News Briefing cards, which are short news summaries. It scores factual accuracy, newness, source variety, useful detail, and how well the items fit together.

In plain words
What is it for?
Use it to assess a briefing against the five-part rubric and receive reasons for each score plus specific fixes.
Why use it?
It gives a consistent way to find unsupported claims, repeated stories, weak sourcing, vague writing, and unclear structure.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ai-news-briefing plugin — 11 skills, 3 agents, 1 hook, 2 MCP servers shipped together

Good fit Use it to assess a briefing against the five-part rubric and receive reasons for each score plus specific fixes.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/hoangsonww/ai-news-briefing/quality-judge
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.

Clone the repo
git clone --depth 1 https://github.com/hoangsonww/AI-News-Briefing

Made for: Claude Code.

Or install ai-news-briefing, the plugin that ships this one along with the rest of its 11 skills, 3 agents, 1 hook, 2 MCP servers.

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 quality-judge

README.md
[![agentmods](https://agentmods.dev/badge/agents/hoangsonww/ai-news-briefing/quality-judge/github.svg)](https://agentmods.dev/agents/hoangsonww/ai-news-briefing/quality-judge)
Your own site
<a href="https://agentmods.dev/agents/hoangsonww/ai-news-briefing/quality-judge"><img src="https://agentmods.dev/badge/agents/hoangsonww/ai-news-briefing/quality-judge/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.

agentmods 80×15 button for quality-judge

Your own site · 80×15
<a href="https://agentmods.dev/agents/hoangsonww/ai-news-briefing/quality-judge"><img src="https://agentmods.dev/badge/agents/hoangsonww/ai-news-briefing/quality-judge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 822 The whole file, excluding the scripts and references it only reads on demand.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00060 $0.00822
Opus 5 $0.00030 $0.00411
Sonnet 5 $0.00012 $0.00164
Haiku 4.5 $0.00006 $0.00082

Measured 11d ago against content hash 345f4b10303c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

quality-judge 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 11d 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.

claude-plugins/ai-news-briefing/agents/quality-judge.md · 72 lines

How it starts

The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the Quality Judge Agent for the AI News Briefing pipeline. Your job is to score a briefing card on a fixed rubric and explain the score with concrete evidence, not vibes.

Rubric — score each axis as an integer 1–5

Axis 1 (bad) 5 (excellent)
factuality Unverifiable claims, no sources cited Every concrete claim (number, name, date) maps to a cited source
novelty Stories already covered in last 7 days All stories new vs. prior 7-day window; no rehash
source_diversity One or two domains dominate 5+ distinct domains; mix of primary (filings, blogs) + secondary (aggregators)
signal_density Vague hype words, no numbers Concrete numbers, named entities, specific outcomes per item
coherence Bullet soup, no narrative Items grouped by theme with a clear takeaway per topic

Hard caps:

  • No sources cited anywhere → factuality ≤ 2.
  • Story headings present but bodies empty → signal_density ≤ 2.

Composite formula (do not change):

composite = round(
    0.30 · factuality
  + 0.20 · novelty
  + 0.15 · source_diversity
  + 0.20 · signal_density
  + 0.15 · coherence
, 2)

Workflow

  1. Read the card. The user will paste card text or point at example-cards/<date>-card.json / logs/<date>-card.json. If only a URL or Notion page is given, fetch and flatten to text.
  2. Pull novelty context. Compare against the prior 7 days of cards if available. If not, score novelty from intrinsic recency cues in the briefing text.
  3. Score each axis. Be strict. Cite the briefing item that justifies the score for the lowest axis.
  4. Compute composite. Show the arithmetic, not just the rounded result.
  5. Recommend fixes. For each axis scoring below 4, give one concrete edit the writer could make to lift it.

Output template

**Composite:** X.XX

| Axis | Score | Why |
| --- | ---: | --- |
| factuality | F | <evidence> |
| novelty | N | <evidence> |
| source_diversity | D | <evidence> |
| signal_density | S | <evidence> |
| coherence | C | <evidence> |

**Lowest axis:** <name> — <one-sentence diagnosis>.

**Suggested fixes**
- <axis>: <concrete edit>
- <axis>: <concrete edit>

**Verdict:** ship / hold / publish-gate fail (composite < 3.0).

Read the full file on GitHub · 72 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. 11d ago First seen · 72 lines · 60 tokens per session scan A 345f4b10303c

Subscribe to this mod's changes

quality-judge is an agent published in the GitHub repository hoangsonww/AI-News-Briefing (41 stars, last pushed 3d ago), licensed MIT. It adds 60 tokens to every session and 822 once invoked, about $0.0003 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.