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 skills add zajalist/hayba --skill hayba-water-crossinggit clone --depth 1 https://github.com/zajalist/haybaWrote 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/zajalist/hayba/hayba-water-crossing)<a href="https://agentmods.dev/skills/zajalist/hayba/hayba-water-crossing"><img src="https://agentmods.dev/badge/skills/zajalist/hayba/hayba-water-crossing/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/zajalist/hayba/hayba-water-crossing"><img src="https://agentmods.dev/badge/skills/zajalist/hayba/hayba-water-crossing.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 | $0.00032 | $0.00420 |
| Opus 5.5 | $0.00013 | $0.00168 |
| Sonnet 5.5 | $0.00006 | $0.00084 |
| Haiku 4.5 | $0.00003 | $0.00042 |
Grade A, and why
hayba-water-crossing 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 13d 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
Build one water crossing
When to use
Use for one crossing where water shape, bank height, bridge or ford clearance, and player route are defined. Record target width, depth impression, landscape interaction, and platform budget. Decide whether a visual-only water body is sufficient before adding waves or complex geometry.
Tool routing
- Call water_check_plugin first. If Water is disabled or its classes are absent, stop and report the prerequisite; do not fabricate a body with a generic actor spawn. Read water_body_list and water_body_inspect for existing bodies and water_zone_inspect for coverage.
- For a new river, use get_tool_signature and the dry-run path of water_body_river_create before spawning. Inspect its spline-applied flag and warnings; a spawned actor with unapplied spline points is not a river matching the route. Add or adjust a Water Zone with water_zone_create only when needed and verify its bounds.
- Run water_validate for missing zones, bodies outside coverage, and wave configuration. Inspect the body again, capture the banks with editor_capture_viewport, and use scene_validate_physics for placement conflicts. A representative PIE traversal or manual playtest must confirm collision and crossing readability; water validation alone cannot.
- After accepting a persistent water body or zone, save the exact active map with level_save, inspect saved, dirty, and verified status, then re-read water_body_inspect and water_zone_inspect. If persistence is uncertain, mark the crossing unsaved and route it to hayba-world-save-integrity.
Evidence
Report plugin status, body and zone identities, intended versus observed spline points and bounds, validation findings, crossing view, traversal observation, and warnings. Treat deferred per-point river width, depth, or velocity metadata as unresolved rather than assuming the requested values applied.
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.
- 13d ago First seen · 25 lines · 32 tokens per session scan A e576be56f466
hayba-water-crossing is a skill published in the GitHub repository zajalist/hayba (13 stars, last pushed 3d ago), licensed MIT. It adds 32 tokens to every session and 420 once invoked, about $0.0001 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 2026-10-04.
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