jahro-watcher

jahro-watcher is a skill for Claude Code, Codex from jahro-console/unity-agent-skills. It costs 65 tokens per session (1,855 once invoked), scanned A, original, MIT.

A skill for adding JahroWatch attributes to C# fields and properties so their values can be inspected while a Unity game is running. Jahro is a Unity debugging tool for viewing changing game data.

In plain words
What is it for?
Use it to identify useful game-state, physics, performance, enum, and counter values to watch, add the needed attributes, and register instance objects when required.
Why use it?
It replaces repeated log statements with targeted runtime monitoring and applies patterns that avoid unnecessary performance costs.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to identify useful game-state, physics, performance, enum, and counter values to watch, add the needed attributes, and register instance objects when required.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jahro-console/unity-agent-skills/jahro-watcher
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.

Any agent
npx skills add jahro-console/unity-agent-skills --skill jahro-watcher
Clone the repo
git clone --depth 1 https://github.com/jahro-console/unity-agent-skills

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 jahro-watcher

README.md
[![agentmods](https://agentmods.dev/badge/skills/jahro-console/unity-agent-skills/jahro-watcher/github.svg)](https://agentmods.dev/skills/jahro-console/unity-agent-skills/jahro-watcher)
Your own site
<a href="https://agentmods.dev/skills/jahro-console/unity-agent-skills/jahro-watcher"><img src="https://agentmods.dev/badge/skills/jahro-console/unity-agent-skills/jahro-watcher/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 jahro-watcher

Your own site · 80×15
<a href="https://agentmods.dev/skills/jahro-console/unity-agent-skills/jahro-watcher"><img src="https://agentmods.dev/badge/skills/jahro-console/unity-agent-skills/jahro-watcher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,855 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 $0.00065 $0.01855
Opus 5 $0.00032 $0.00928
Sonnet 5 $0.00013 $0.00371
Haiku 4.5 $0.00006 $0.00186

Measured 10d ago against content hash 24167383e3c1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

jahro-watcher 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/jahro-watcher/SKILL.md · 223 lines

How it starts

The opening of the file, as written. The whole thing — 223 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Jahro Watcher

Help users monitor game variables in real-time using Jahro's [JahroWatch] attribute system.

Workflow

  1. Analyze the user's code — identify fields/properties worth monitoring
  2. Generate correct [JahroWatch] attributes
  3. Add registration if needed (instance members require RegisterObject)
  4. VERIFY — "Enter Play Mode, open the Watcher tab, confirm values update"

Analyzing Code for Watcher Candidates

When the user shares a class, identify members worth monitoring:

Good candidates:

  • Game state fields: health, score, level, currency, inventory counts
  • Physics values: velocity, position, rotation (especially via properties wrapping Rigidbody)
  • Performance metrics: FPS, memory, draw calls
  • Enum state fields: game state, player state, AI state
  • Key counters: enemy count, player count, item count

Skip these:

  • Constants and readonly compile-time values
  • Private implementation details that change every frame with no debugging value
  • References to other objects (Transform, GameObject) — watch their properties instead
  • Collections and dictionaries (arrays are supported, but dictionaries are not)

Suggest replacing Debug.Log polling: If the user has Debug.Log($"Health: {health}") in Update(), recommend [JahroWatch] instead — it eliminates log spam and provides a clean real-time dashboard.

Attribute Syntax

[JahroWatch("Display Name", "GroupName", "Description for detail modal")]

Constructor: [JahroWatch(string name, string group, string description)]

All parameters are optional. Defaults: name = member name (leading _ stripped), group = "Default", description = "".

Complete example

using JahroConsole;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
    [JahroWatch("Health", "Player", "Current hit points")]
    public float health = 100f;

    [JahroWatch("Stamina", "Player", "Current stamina")]
    public float stamina = 50f;

    [JahroWatch("Position", "Player", "World position")]
    public Vector3 Position => transform.position;

    [JahroWatch("Velocity", "Player", "Movement velocity")]
    public Vector3 Velocity => GetComponent<Rigidbody>().velocity;

    [JahroWatch("Is Grounded", "Player", "Touching ground")]
    public bool isGrounded;

    void OnEnable()  => Jahro.RegisterObject(this);
    void OnDisable() => Jahro.UnregisterObject(this);
}

Read the full file on GitHub · 223 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. 10d ago First seen · 223 lines · 65 tokens per session scan A 24167383e3c1

Subscribe to this mod's changes

jahro-watcher is a skill published in the GitHub repository jahro-console/unity-agent-skills (16 stars, last pushed 5mo ago), licensed MIT. It adds 65 tokens to every session and 1,855 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.