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 mikeOnBreeze/cc-crossbeam --skill california-adugit clone --depth 1 https://github.com/mikeOnBreeze/cc-crossbeamWrote 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/mikeonbreeze/cc-crossbeam/california-adu)<a href="https://agentmods.dev/skills/mikeonbreeze/cc-crossbeam/california-adu"><img src="https://agentmods.dev/badge/skills/mikeonbreeze/cc-crossbeam/california-adu/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/mikeonbreeze/cc-crossbeam/california-adu"><img src="https://agentmods.dev/badge/skills/mikeonbreeze/cc-crossbeam/california-adu.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 | $0.00074 | $0.01861 |
| Opus 5 | $0.00037 | $0.00931 |
| Sonnet 5 | $0.00015 | $0.00372 |
| Haiku 4.5 | $0.00007 | $0.00186 |
Grade A, and why
california-adu 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 12d 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 — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.
California ADU Regulatory Decision Engine
This skill contains the California state-level ADU (Accessory Dwelling Unit) and JADU (Junior Accessory Dwelling Unit) rules extracted from the HCD ADU Handbook (January 2025) and the January 2026 Addendum. It covers Government Code §§ 66310-66342 (including new §§ 66311.5, 66333.5) as amended through January 1, 2026.
What this covers: State law — the floor that cities cannot go below. Cities may be more permissive but cannot impose standards more restrictive than what is stated here.
What this does NOT cover: City/county-specific ordinances, federal requirements (FHA, ADA), or project-specific engineering.
How to Use This Skill
When answering an ADU question, follow the 4-step decision tree below. Each step tells you which reference files to load. Load only what you need — most questions require 3-5 reference files, not all 28.
After loading references, check the Quick-Reference Thresholds table below for the key numbers that come up in almost every query.
Decision Tree Router
STEP 1: Classify the Lot Type
What kind of lot is the ADU proposed on?
| Lot Type | Load These References |
|---|---|
| Single-family lot | unit-types-66323.md, unit-types-adu-general.md |
| Multifamily lot (2+ existing units) | unit-types-multifamily.md, unit-types-66323.md |
| JADU only (within existing/proposed single-family dwelling) | unit-types-jadu.md |
| Unsure / mixed question | unit-types-66323.md (start here — it has the combinations table) |
STEP 2: Classify the ADU Construction Type
How is the ADU being built?
| Construction Type | Load These References |
|---|---|
| New detached construction | standards-height.md, standards-size.md, standards-setbacks.md |
| Conversion from existing space (garage, basement, etc.) | standards-size.md, zoning-nonconforming.md |
| Attached addition to existing dwelling | standards-height.md, standards-size.md, standards-setbacks.md |
| Manufactured/factory-built home | special-manufactured.md |
What ships with it
30 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.
- AGENTS.md 6.2 KB
- CLAUDE.md 9 B
- references/compliance-housing.md 4.0 KB
- references/compliance-ordinances.md 5.7 KB
- references/compliance-unpermitted.md 3.5 KB
- references/compliance-utilities.md 2.4 KB
- references/glossary.md 8.2 KB
- references/legislative-changes.md 11 KB
- references/ownership-hoa.md 4.4 KB
- references/ownership-sales.md 2.2 KB
- references/ownership-use.md 3.5 KB
- references/permit-fees.md 6.5 KB
- references/permit-funding.md 2.7 KB
- references/permit-process.md 8.4 KB
- references/special-manufactured.md 2.7 KB
- references/special-sb9.md 2.0 KB
- references/standards-design.md 4.8 KB
- references/standards-fire.md 3.1 KB
- references/standards-height.md 3.5 KB
- references/standards-parking.md 3.5 KB
- references/standards-setbacks.md 3.4 KB
- references/standards-size.md 4.5 KB
- references/standards-solar.md 2.0 KB
- references/unit-types-66323.md 6.6 KB
- references/unit-types-adu-general.md 5.0 KB
- references/unit-types-jadu.md 6.6 KB
- references/unit-types-multifamily.md 5.3 KB
- references/zoning-general.md 5.1 KB
- references/zoning-hazards.md 3.6 KB
- references/zoning-nonconforming.md 2.4 KB
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.
- 12d ago First seen · 131 lines · 74 tokens per session scan A 2b9451de83d1
california-adu is a skill published in the GitHub repository mikeOnBreeze/cc-crossbeam (291 stars, last pushed 6mo ago), licensed MIT. It adds 74 tokens to every session and 1,861 once invoked, about $0.0004 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.
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