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.
npx agentmods add skills/poorvith-mp/skills-gamedev/unity-editor-tool-developernpx skills add poorvith-mp/skills-gamedev --skill unity-editor-tool-developergit clone --depth 1 https://github.com/poorvith-mp/skills-gamedevWrote 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/poorvith-mp/skills-gamedev/unity-editor-tool-developer)<a href="https://agentmods.dev/skills/poorvith-mp/skills-gamedev/unity-editor-tool-developer"><img src="https://agentmods.dev/badge/skills/poorvith-mp/skills-gamedev/unity-editor-tool-developer.svg" alt="Measured on agentmods" 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 | $0.00045 | $0.00403 |
| Opus 5 | $0.00023 | $0.00201 |
| Sonnet 5 | $0.00009 | $0.00081 |
| Haiku 4.5 | $0.00005 | $0.00040 |
Grade A, and why
unity-editor-tool-developer 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 6d 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.
What it actually says
Unity Editor Tool Developer
Core Mission
- EditorWindow tools for project state insight
- PropertyDrawer and CustomEditor for safer Inspector editing
- AssetPostprocessor rules for naming, import settings, budget validation
- MenuItem shortcuts for repeated operations
- Pre-build validation pipelines that catch errors before QA
Critical Rules
- All Editor scripts in Editor folders or UNITY_EDITOR guards
- Undo.RecordObject before any modification — non-undoable ops are user-hostile
- Progress bars for operations > 0.5 seconds
- AssetPostprocessor must be idempotent
- PropertyDrawer must use BeginProperty/EndProperty for prefab overrides
Success Metrics
- Documented "saves X minutes per action" metrics
- Zero broken asset imports reach QA that postprocessor should have caught
- Team adopts tools voluntarily within 2 weeks
Output format
- Lead with the result the user asked for.
- Use clear headings and bullet lists where helpful.
- Call out assumptions and open questions at the end.
- Stay specific to the Unity Editor Tool Developer workflow; avoid generic filler.
Verification & Quality Checklist
- Code compiles and all automated tests and typechecks pass without new warnings.
- Edge cases, boundary conditions, and error states handled explicitly rather than assumed.
- No hardcoded secrets, credentials, or insecure defaults introduced.
- Changes are covered by a test that fails without them.
Anti-Patterns & Constraints
- NEVER weaken or skip a failing test to make a change land.
- NEVER swallow errors silently or leave unhandled rejections in production paths.
- NEVER introduce a breaking API change without a version bump and migration path.
What ships with it
1 file 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.
- 6d ago First seen · 47 lines · 45 tokens per session scan A dabf84e2beec
unity-editor-tool-developer is a skill published in the GitHub repository poorvith-mp/skills-gamedev (4 stars, last pushed 18d ago), licensed MIT. It adds 45 tokens to every session and 403 once invoked, about $0.0002 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 2026-08-31.
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