Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add AlterLab-IEU/AlterLab_GameForge/plugin install gameforgeWrote 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/alterlab-ieu/alterlab_gameforge/game-scope-check)<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab_gameforge/game-scope-check"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab_gameforge/game-scope-check/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/alterlab-ieu/alterlab_gameforge/game-scope-check"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab_gameforge/game-scope-check.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 | $0.00090 | $0.04759 |
| Opus 5.5 | $0.00036 | $0.01904 |
| Sonnet 5.5 | $0.00018 | $0.00952 |
| Haiku 4.5 | $0.00009 | $0.00476 |
Grade A, and why
game-scope-check 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 today.
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.
How it starts
The opening of the file, as written. The whole thing — 369 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AlterLab GameForge -- Scope Check
Games rarely die from one bad decision. They die from a feature list that grows one reasonable addition at a time until it no longer fits the team that has to finish it. Adding feels like progress and cutting feels like failure; this workflow inverts that. Cutting is the skill, and a tight scope is the achievement. A finished game with eight polished features beats an abandoned one with twenty half-built ones.
AI coding agents change the arithmetic but not the principle. They make the first playable and the boilerplate dramatically cheaper, which makes it easy to add features. They do not make integration, content, QA, polish or review proportionally cheaper, and unreviewed agent code creates debt that comes due later. The 2026 Vibe Jam gold winner, built with Claude Code in about two weeks (roughly 27k lines, 188+ commits, per Wccftech's July 2026 report on its workflow), was scoped to 5-10 minutes of play, and its creator built the 3D map by hand. Scope to what the whole pipeline can finish, not to how fast the prototype appeared.
Purpose & Triggers
Use this workflow when:
- The feature list has grown since the last check, or nobody has ever done one.
- Someone says "can we fit this in?" or "it'd only take the agent an hour."
- A milestone, demo, festival or launch date is approaching and confidence is low.
- Sprint velocity keeps missing plan, or agent sessions keep re-fixing the same systems.
- The team feels overwhelmed and cannot say why.
Do NOT use this workflow when:
| Need | Route to |
|---|---|
| Turning the agreed scope into sprint tasks | game-sprint-plan |
| Making the final ship-date or scope call, risk register, milestones | game-producer (this check feeds its decision) |
| De-risking one unknown feature before estimating it | game-prototype |
| Scoping a 48-72 hour jam | game-jam-mode |
| Assessing code health and refactor needs in detail | game-code-review, game-technical-director |
| Reviewing the design itself | game-design-review |
| Looking back at why scope slipped | game-retrospective, game-postmortem |
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- today Changed · -23 lines · +10 tokens per session e89f6a146945
- 2mo ago First seen · 392 lines · 80 tokens per session scan A 0b07c361bebb
game-scope-check is a skill published in the GitHub repository AlterLab-IEU/AlterLab_GameForge (52 stars, last pushed yesterday), licensed MIT. It adds 90 tokens to every session and 4,759 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 2026-08-30.
game-scope-check compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| game-scope-checkAlterLab-IEU/AlterLab_GameForge | Skill | 52 | yesterday | MIT | A | 90 | Claude Code |
| playtest-reportDonchitos/Claude-Code-Game-Studios | Skill | 36k | 18d ago | MIT | A | 20 | Claude Code |
| godot-signals-groupsgamedev-skills/awesome-gamedev-agent-skills | Skill | 6.9k | 9d ago | Apache-2.0 | A | 95 | Claude Code |
| scenario-unreal-gameplayscenario-labs/skills | Skill | 3.2k | yesterday | MIT | A | 121 | Claude Code |
| motionOpenDCAI/GameFactory-3A | Skill | 1.0k | 8d ago | Apache-2.0 | A | 0 | Claude Code, Codex |
| unity-addressablesBesty0728/Unity-Skills | Skill | 1.9k | yesterday | MIT | A | 25 | Claude Code, Codex |
| unity-manual-componentBesty0728/Unity-Skills | Skill | 1.9k | yesterday | MIT | A | 36 | Claude Code, Codex |