token-slayer: Agent for Claude Code

.claude/agents/battlefield-reviewer.md

battlefield-reviewer is an agent for Claude Code from ownego/token-slayer. It costs 93 tokens per session (1,518 once invoked), scanned A, original, no licence file.

A code reviewer for the Phaser game code in resources/js/battlefield/, covering its scenes, snapshots, leaderboard, projectiles, attacks, layout, impacts, and event bus.

In plain words
What is it for?
Use it when reviewing changes to the battlefield game code, especially changes involving game state, events, scenes, attacks, or layout.
Why use it?
It looks for Phaser lifecycle leaks, mismatched saved-game data, and broken event agreements that ordinary tests or visual checks may miss.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is ownego/token-slayer's own configuration. It tells Claude Code how to work on token-slayer 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 token-slayer configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ownego/token-slayer. 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/ownego/token-slayer/master/.claude/agents/battlefield-reviewer.md
Clone the repo
git clone --depth 1 https://github.com/ownego/token-slayer

Made for: Claude Code.

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 battlefield-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/ownego/token-slayer/battlefield-reviewer/github.svg)](https://agentmods.dev/agents/ownego/token-slayer/battlefield-reviewer)
Your own site
<a href="https://agentmods.dev/agents/ownego/token-slayer/battlefield-reviewer"><img src="https://agentmods.dev/badge/agents/ownego/token-slayer/battlefield-reviewer/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 battlefield-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/ownego/token-slayer/battlefield-reviewer"><img src="https://agentmods.dev/badge/agents/ownego/token-slayer/battlefield-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 93 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,518 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 unknown 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 $0.00093 $0.01518
Opus 5.5 $0.00037 $0.00607
Sonnet 5.5 $0.00019 $0.00304
Haiku 4.5 $0.00009 $0.00152

Measured 10d ago against content hash 2ab14af12a11, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

battlefield-reviewer 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 10d 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/agents/battlefield-reviewer.md · 57 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 10d ago Changed · +1 lines 2ab14af12a11
  2. 11d ago Changed b40ef7502f15
  3. 1mo ago Changed · +5 lines · +30 tokens per session 84dc2bf18499
  4. 2mo ago First seen · 51 lines · 63 tokens per session scan A 97b3db72f944

Subscribe to this mod's changes

battlefield-reviewer is an agent published in the GitHub repository ownego/token-slayer (4 stars, last pushed 11d ago), with no licence file. It adds 93 tokens to every session and 1,518 once invoked, about $0.0004 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 2026-08-31.

Related

battlefield-reviewer compared with agents from other repositories

battlefield-reviewer next to 6 agents from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
battlefield-reviewerownego/token-slayerAgent411d agononeA93Claude Code
lead-programmerDonchitos/Claude-Code-Game-StudiosAgent36k18d agoMITA30Claude Code
spritekit-auditorCharlesWiltgen/AxiomAgent1.3kyesterdayMITA39Claude Code
godot-code-reviewerjame581/GodotPrompterAgent9295d agoMITA187Claude Code
game-revieweravelikiy/great_ctoAgent1122d agoMITA38Claude Code
code-reviewerMRCalderon3D/everything-game-dev-codeAgent10428d agoMITA18Claude Code
godot-reviewerMRCalderon3D/everything-game-dev-codeAgent10428d agoMITA21Claude Code