Borrowing it
Nothing to install: this file belongs to jakildev/IrredenEngine. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/jakildev/IrredenEngine/master/CLAUDE.mdgit clone --depth 1 https://github.com/jakildev/IrredenEngineWrote 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/instructions/jakildev/irredenengine/claude-md)<a href="https://agentmods.dev/instructions/jakildev/irredenengine/claude-md"><img src="https://agentmods.dev/badge/instructions/jakildev/irredenengine/claude-md/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/instructions/jakildev/irredenengine/claude-md"><img src="https://agentmods.dev/badge/instructions/jakildev/irredenengine/claude-md.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 | $0.01476 | $0.01476 |
| Opus 5.5 | $0.00590 | $0.00590 |
| Sonnet 5.5 | $0.00295 | $0.00295 |
| Haiku 4.5 | $0.00148 | $0.00148 |
Grade A, and why
IrredenEngine CLAUDE.md 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Irreden Engine
Isometric voxel game engine built on an archetype-based ECS. C++ handles the engine, systems, and pipelines. LuaJIT 2.1 (via sol2) drives entity creation and game logic in creations.
docs/agents/AGENTS-ARCHITECTURE.md has
the full long-form architecture reference. Module-specific details live in
CLAUDE.md files nested under engine/, engine/prefabs/, and creations/
— read the most specific one for whatever directory you're working in.
Private implementations (games, editors, experiments) layered on top of the
engine may live in their own gitignored subdirectories under creations/ and
may define their own conventions, review criteria, workflows, or even their
own repo. The skills in .claude/skills/ are engine-level and generic; when
working inside such a subdirectory, always read that subdirectory's own
CLAUDE.md first — its rules override the engine baseline for that scope.
Cross-cutting baseline — naming, style, the ECS footgun, the rules for what belongs in a
CLAUDE.md, Bash tool restrictions, and cross-repo information isolation live indocs/agents/CLAUDE-BASELINE.md. Read that file alongside this one and treat its sections as if inlined here. Creations inherit the same baseline by reference; seedocs/design/claude-md-sharing.mdfor the mechanism and opt-out form.
Where to find things
| You need… | Read… |
|---|---|
| Coding conventions (ECS, naming, IRMath, ownership, comment style) | docs/agents/CLAUDE-BASELINE.md |
| Module-specific patterns (ECS, prefabs, render, math, system, etc.) | the nearest CLAUDE.md (loaded automatically when you open a file in that subtree) |
| Long-form architecture reference (ECS internals, render pipeline, coordinate systems, Lua integration) | docs/agents/AGENTS-ARCHITECTURE.md |
| Build commands and environment setup (Linux/WSL, Windows, macOS) | docs/agents/BUILD.md |
| Validators — what proves a change (tests, harnesses, ratchets, CI) | docs/agents/VALIDATION.md |
| Fleet workflow (parallel agents, PRs, cursor cues, design escalation, model split, labels, clean-exit policy, fix-forward, feedback) | docs/agents/FLEET.md |
Skills (named workflows like simplify, commit-and-push, review-pr) |
.claude/skills/ — each has its own SKILL.md |
| Shared skill flows (fleet skills factored for cross-repo reuse) | docs/agents/skills/ — canonical flows; each repo's SKILL.md is a thin wrapper (mechanism: docs/design/skill-sharing.md) |
| Roles (autonomous personas — worker, reviewer, merger, architect) | .claude/commands/role-*.md |
| Standing objectives (the human-owned "what" above epics) | docs/design/objectives/ |
| Task queue (when running fleet roles) | fleet-queue-list or gh issue list --label fleet:queued --repo jakildev/IrredenEngine |
| Cross-repo info isolation rule (engine repo public, game repo private) | docs/agents/CLAUDE-BASELINE.md §"Cross-repo information isolation" |
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.
- 2d ago First seen · 92 lines · 1,476 tokens per session scan A e186831c6edd
IrredenEngine CLAUDE.md is an instructions file published in the GitHub repository jakildev/IrredenEngine (10 stars, last pushed today), licensed MIT. It adds 1,476 tokens to every session, about $0.0059 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 2026-11-07.
IrredenEngine CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| IrredenEngine CLAUDE.mdjakildev/IrredenEngine | Instructions file | 10 | today | MIT | A | 1,476 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
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| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| vscode ai-customization.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 1,907 | GitHub Copilot |