arc-explainer: Skill for Claude Code

.agents/skills/competition-reporter/SKILL.md

competition-reporter is a skill for Claude Code, Codex from 82deutschmark/arc-explainer. It costs 41 tokens per session (867 once invoked), scanned A, original, MIT.

A reporting workflow for sourced competition news, contestant profiles, and social briefings. It covers sports-style contests as well as benchmark and Kaggle competitions, where Kaggle is a platform for data-science contests.

In plain words
What is it for?
Use it to report standings, team rosters, contestant backgrounds, research announcements, and the significance of changes in a competition.
Why use it?
It helps separate verified identities, dated results, team membership, and historical facts from guesses based on similar names or incomplete records.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is 82deutschmark/arc-explainer's own configuration. It tells Claude Code and Codex how to work on arc-explainer itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything arc-explainer configures →

Reuse

Borrowing it

Nothing to install: this file belongs to 82deutschmark/arc-explainer. 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/82deutschmark/arc-explainer/main/.agents/skills/competition-reporter/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/82deutschmark/arc-explainer

Made for: Claude Code, Codex.

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 competition-reporter

README.md
[![agentmods](https://agentmods.dev/badge/skills/82deutschmark/arc-explainer/competition-reporter/github.svg)](https://agentmods.dev/skills/82deutschmark/arc-explainer/competition-reporter)
Your own site
<a href="https://agentmods.dev/skills/82deutschmark/arc-explainer/competition-reporter"><img src="https://agentmods.dev/badge/skills/82deutschmark/arc-explainer/competition-reporter/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 competition-reporter

Your own site · 80×15
<a href="https://agentmods.dev/skills/82deutschmark/arc-explainer/competition-reporter"><img src="https://agentmods.dev/badge/skills/82deutschmark/arc-explainer/competition-reporter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 867 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 $0.00041 $0.00867
Opus 5.5 $0.00016 $0.00347
Sonnet 5.5 $0.00008 $0.00173
Haiku 4.5 $0.00004 $0.00087

Measured 12d ago against content hash 5060d3c2d01d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

competition-reporter 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 12d 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/skills/competition-reporter/SKILL.md · 39 lines

How it starts

The opening of the file, as written. The whole thing — 39 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competition reporter

Follow the people and the sporting consequence. Lead with the strongest verified result, move or research announcement; use the standings to explain the stakes. A quiet day can warrant a short report. Biographies belong where they help readers understand a contender.

Evidence and identities

  • Use the competition's exact ID, season and team ID as its entry key. A person's stable ID is separate: one person can have different teams in different contests or seasons.
  • Connect a handle to a person through direct profile links, credited write-ups or primary professional sources. Similar names and matching avatars do not establish identity. Keep unresolved handles unresolved.
  • Save narrow facts with primary source URLs and check dates. Preserve dated team roster observations; they establish presence at that time, not a joining date, departure, leadership or responsibility for a score. Preserve historical memberships when a later board omits them.
  • Cross-reference relevant existing achievements and artwork. Identify historical years clearly; a shared team card does not establish a current roster. Reuse an archive's explicit identity mapping.
  • Separate team and individual accomplishments. A one-account roster supports “one listed account”; it does not prove nobody helped. Explain verified affiliations without extending them to every team member.

Show the people

Readers follow faces. Give every verified person one portrait from a source tied to that identity: archive art made of them alone, or the profile picture on their own verified account. Never crop a face out of a group image, use a lookalike, or keep a picture its owner has since removed; a default avatar means no portrait. Record past results as dated honors linked to their source. When you write about someone, cite their person sources in that section: the page draws its faces from your citations, so the people you report on are the people readers see.

Social research that improves the news

Read the full file on GitHub · 39 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. 12d ago Changed 5060d3c2d01d
  2. 18d ago First seen · 39 lines · 41 tokens per session scan A 8da08ea1de3e

Subscribe to this mod's changes

competition-reporter is a skill published in the GitHub repository 82deutschmark/arc-explainer (12 stars, last pushed today), licensed MIT. It adds 41 tokens to every session and 867 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-10.

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